The bowling scores for 6 people are: 112, 114, 115, 120, 122, 290

What is the MOST appropriate measure of center?

A. Range
B. Median
C. Standard Deviation
D. Mean


Will give brainliest!

Answers

Answer 1
I think that it is median since the 5 scores are so close together and the 6th is an outlier (freaky high)
Answer 2

The most appropriate measure of center is Median. As the data has a large value (290) at the end, it is the better choice to choose the median for finding the center because the mean or average is appropriate to represent the general level if there are not too large or too small values in the set. The median for the given bowling scores for 6 people is 117.5.

Definitions:Mean, the average value of the set of values. It is given by the ratio of the sum of all the values in the set to the total number of values in the setMedian, the mid-point or middle value of the set of values. It is calculated by arranging the values of the set in ascending order and taking the middle value or center valueStandard deviation, shows the variation in data. If the data is close together so it will be small or if the data is spread out then it will be large. Standard deviation is the square root of the variance.Range, the mathematical distance between the lowest and highest values in the data set. It is calculated by taking the difference between the highest value and the lowest value in the set

Since the standard deviation and range gives the variability of the given data, the mean and median are used for calculating the center.

Calculating mean and median:

Given data values are,

112, 114, 115, 120, 122, 290

Mean of the given data values,

Mean = Sum of all values / number of values

Sum of values = 112 + 114 + 115 + 120 + 122 + 290 = 873

Number of values = 6

∴ Mean = [tex]\frac{873}{6}[/tex]

             = 145.5

Median of the given data values,

Arranging the data values in the ascending order - 112, 114, 115, 120, 122, 290

Number of values = 6 (even)

So, the median is the average between the two centers

∴ Median = [tex]\frac{115+120}{2}[/tex]

                = 117.5

Since the last value in the set is larger than all the values (a sudden change or rise in the value), the most appropriate measure of center is the median and it is 117.5.

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Related Questions

Which equation is an identity?

8 – (6v + 7) = –6v – 1

5y + 5 = 5y – 6

3w + 8 – w = 4w – 2(w – 4)

6m – 6 = 7m + 9 – m

Answers

Answer:

Equation 3

Step-by-step explanation:

An identity is, simply put, an equation that is always true. 1 = 1, 2 = 2, and x = x are all examples of identities, as there's no case in which 1 ≠ 1, 2 ≠ 2, and x ≠ x. Essentially, if we can manipulate and equation so that we end up with the same value on either side, we've found an identity. Let's run through and try to solve each of these equations to see which one fulfills that condition:

8 - (6v + 7) = -6v - 1

8 - 6v - 7 = -6v - 1

1 - 6v = -6v - 1

1 = -1

This is clearly untrue. Moving on to the next equation:

5y + 5 = 5y - 6

5 = -6

Untrue again. Solving the third:

3w + 8 - w = 4w - 2(w - 4)

2w + 8 = 4w - 2w + 8

2w + 8 = 2w + 8

If we created a new variable z = 2w + 8, we could rewrite this equation as

z = z, which is always true. We can stop here, as we've now found that equation 3 is an identity.

Final answer:

The identity among the given equations is 3w + 8 - w = 4w - 2(w - 4), as it simplifies to a true statement 2w + 8 = 2w + 8 for all values of w.

Explanation:

The student asked which equation is an identity. To find the identity, we simplify and solve each equation:

8 – (6v + 7) = –6v – 1: When we simplify, we get 8 - 6v - 7 = -6v - 1, which further simplifies to 1 - 6v = -6v - 1. Adding 6v to both sides, we have 1 = -1, which is not true, so it's not an identity.

5y + 5 = 5y – 6: Simplifying this we simply subtract 5y from both sides, and we are left with 5 = -6, which is not true, so this is not an identity either.

3w + 8 – w = 4w – 2(w – 4): Simplifying we get 2w + 8 = 4w - 2w + 8, which reduces to 2w + 8 = 2w + 8. This is true for all values of w, therefore, this is an identity.

6m – 6 = 7m + 9 – m: Simplifying gives us 6m - 6 = 6m + 9. Subtracting 6m from both sides, we get -6 = 9, which is not true and thus not an identity.

The identity is the equation 3w + 8 – w = 4w – 2(w – 4) because it simplifies to a true statement regardless of the value of w.

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PLEASE HELP!

What is the measure of angle C?





Enter your answer as a decimal in the box. Round only your final answer to the nearest hundredth.

Answers

Answer:

[tex] R = 10.39^\circ [/tex]

Step-by-step explanation:

Since you have the lengths of all the sides, you can use sine, cosine, or tangent to find the answer. Let's use the tangent ratio.

For angle C, AB is the opposite leg, and BC is the adjacent leg.

[tex] \tan C = \dfrac{opp}{adj} [/tex]

[tex] \tan C = \dfrac{22}{120} [/tex]

[tex] C = \tan^{-1} \dfrac{22}{120} [/tex]

[tex] C = 10.39^\circ [/tex]

Applying the tangent ratio (tan ∅ = opposite length/adjacent length), the measure of angle C, to the nearest hundreth, is: 10.39°

What is the Tangent Ratio?

In a given right triangle, the tangent ratio is given as, tan ∅ = opposite length/adjacent length.

Given the following:

∅ = ∠COpposite = 22Adjacent = 120

Applying the tangent ratio:

tan C = 22/120

m∠C = tan^(-1)(22/120)

m∠C = 10.39° (nearest hundreth)

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Yadira's mom is buying hot dogs and hot dog buns for the family barbecue. Hot dogs come in packs of 1 and hot dog buns come in packs of 9. The store does not sell parts of a pack and Yadira's mom wants the same number of hot dogs as hot dog buns. What is the smallest total number of hot dogs that Yadira's mom can purchase?

Answers

Answer:

Nine

Step-by-step explanation:

The smallest number of buns is one pack or 9 buns.

If there is one hot dog per bun, the smallest number of hot dogs is nine.

Answer:

36 hotdogs

Step-by-step explanation:

Mathematically, we say that 36 is the least common multiple of 12 and 9. In math notation this looks like:

lcm of 9 and 12 is 36

The smallest total number of hot dogs that Yadira's mom can purchase is , 36.

Identify the area of the rhombus. HELP PLEASE!!

Answers

Answer:

A = (x^2 - 2x - 8) m^2

Second option

Step-by-step explanation:

Area of rhombus = 1/2 d1 * d2

= 1/2(2x+4)(x-4)

= 1/2 (2x^2 -8x + 4x - 16)

= 1/2 (2x^2 - 4x - 16)

= x^2 - 2x - 8

There are x boys playing in the park. The number of girls playing in the park is equal to the square root of the number of boys. If the total number of boys and girls playing in the park is 42, find the number of boys. A. 36 B. 6 C. 49 D. 7

Answers

Answer:

Option A. 36

Step-by-step explanation:

Let

x-------> the number of boys

y------> the number of girls

we know that

[tex]x+y=42[/tex] -----> equation A

[tex]y=\sqrt{x}[/tex] -----> equation B

using a graphing tool to solve the system of equations

Remember that the solution is the intersection point both graphs

The solution is the point (36,6)

see the attached figure

therefore

The number of boys is 36

If Logan's family can drive 23 1/8 miles on 1 gallon of gas,how far can they drive on 17 gallons

Answers

[tex]\bf \begin{array}{ccll} miles&\stackrel{gas}{gallons}\\ \cline{1-2}\\ 23\frac{1}{8}&1\\\\ x&17 \end{array}\implies \cfrac{23\frac{1}{8}}{x}=\cfrac{1}{17}\implies \cfrac{\frac{23\cdot 8+1}{8}}{x}=\cfrac{1}{17}\implies \cfrac{\frac{185}{8}}{x}=\cfrac{1}{17} \\\\\\ \cfrac{\frac{185}{8}}{\frac{x}{1}}=\cfrac{1}{17}\implies \cfrac{185}{8}\cdot \cfrac{1}{x}=\cfrac{1}{17}\implies \cfrac{185}{8x}=\cfrac{1}{17} \\\\\\ 3145=8x\implies \cfrac{3145}{8}=x\implies 393\frac{1}{8}=x[/tex]

The area of rectangle bathroom floor is 53 5/8 feet. If the bathroom is 6 1/2 feet wide, what is the length

Answers

Answer:

The length is [tex]8\frac{1}{4}\ ft[/tex]

Step-by-step explanation:

we know that

The area of a rectangle is equal to

[tex]A=LW[/tex]

In this problem we have

[tex]A=53\frac{5}{8}\ ft^{2}[/tex]

[tex]W=6\frac{1}{2}\ ft[/tex]

convert to an improper fraction

[tex]A=53\frac{5}{8}=\frac{53*8+5}{8}=\frac{429}{8}\ ft^{2}[/tex]

[tex]W=6\frac{1}{2}=\frac{6*2+1}{2}=\frac{13}{2}\ ft[/tex]

substitute in the formula and solve for L

[tex]\frac{429}{8}=L\frac{13}{2}[/tex]

[tex]L=\frac{429*2}{8*13}=\frac{858}{104}\ ft[/tex]

Convert to mixed number

[tex]L=\frac{858}{104}=\frac{832}{104}+\frac{26}{104}=8\frac{1}{4}\ ft[/tex]

The length of the bathroom floor in this case is 8 1/4 feet.

The area of a rectangle is calculated by multiplying its length by its width. In this case, with the bathroom floor having an area of 53 5/8 square feet and a width of 6 1/2 feet, we can find the length as follows:

Area = Length x Width

53 5/8 = Length x 6 1/2

Length = 53 5/8 / 6 1/2

Length = 8 1/4 feet

Therefore, the length of the bathroom floor is 8 1/4 feet.

A potter works 4 days a week, makes 14 pots per day on average, and charges $24 a pot. Money per 4-day workweek?

Answers

Step by Step:

14 average pots x 4 days a week = average money made

14x4= 56

56 pots a 4-day week x 24$ a pot

56x24 = 1344$

△ABC is a right triangle with right angle at ∠B . AB=34 cm AC=55 cm What is the measure of ∠C , to the nearest degree? Enter your answer in the box.

Answers

Answer:

38°

Step-by-step explanation:

One side length is 34cm and the hypotenuse is 55cm. Used SOH-CAH-TOA to find what trig function to use. You have the opposite side and the hypotenuse, so use sine. SinC = 34/55. You can input this into a calculator as 34/55 and press sin^-1 to get the angle value, which is approximately 38°.

Answer:

△ABC is a right triangle with right angle at ∠B.

AB=34 cm  

AC=55 cm

 

What is the measure of ∠C, to the nearest degree?

Enter your answer in the box.

38°

Step-by-step explanation:

A campus radio station surveyed 500 students to determine the types of music they like. The survey revealed that 206 like rock, 161 like country, and 118 like jazz. Moreover, 30 like rock and country, 27 like rock and jazz, 22 like country and jazz, and 11 like all three types of music. What is the probability that a randomly selected student likes neither rock nor country? Note: A Venn diagram may be useful here.

Answers

Answer:

163/500 = 0.326

Step-by-step Explanation:

Drawing a Venn diagram for this, we will have 3 circles.  One will represent rock, one will represent country, and one will represent jazz.

There are 11 students that like all 3 types of music.  This means the number 11 goes in the intersection of all 3 circles.

There are a total of 30 students that like rock and country; taking out the 11 that like all 3, this leaves 30-11 = 19 students in the intersection of just rock and country.

There are a total of 27 students that like rock and jazz; taking out the 11 that like all 3, this leaves 27-11 = 16 students in the intersection of just rock and jazz.

There are a total of 22 students that like country and jazz; taking out the 11 that like all 3, this leaves 22-11 = 11 students in the intersection of just country and jazz.

There are 206 students that like rock; taking out the 11 that like all 3, the 19 that like rock and country, and the 16 that like rock and jazz, we have

206-(11+19+16) = 206-(46) = 160 in just rock.

There are 161 students that like country; taking out the 11 that like all 3, the 19 that like rock and country, and the 11 that like country and jazz, we have

161-(11+19+11) = 161-(41) = 120 in just country.

There are 118 students that like jazz; taking out the 11 that like all 3, the 16 that like rock and jazz, and the 11 that like country and jazz, we have

118-(11+16+11) = 118-38 = 80 in just jazz.

This leaves

500-(80+120+160+11+11+19+16) = 500-417 = 83 students that like none of the 3 types of music.

This means for the probability that a student likes neither rock nor country, they either like just jazz or none of the 3; this is (83+80)/500 = 163/500 = 0.326.

The probability that a randomly selected student likes neither rock nor country is;

P(R' ∩ C') = 0.326

Let us denote them as follows;

Number that like rock music be R

Number that like Country music be C

Number that like Jazz music be J

Thus, as we are given we have;

R = 206

C = 161

J = 118

R ∩ C = 30 - 11 = 19

R ∩ J = 27 - 11 = 16

C ∩ J = 22 - 11 = 11

R ∩ C ∩ J = 11

Thus, number that liked only jazz music is;

n(only jazz) = J - [(R ∩ J) + (C ∩ J) + (R ∩ C ∩ J)]

n(only jazz) = 118 - (16 + 11 + 11)

n(only J) = 80

Number of students that liked only Rock music;

n(only Rock) = R - [(R ∩ C) + (R ∩ J) + (R ∩ C ∩ J)]

n(only Rock) = 206 - (19 + 16 + 11)

n(only R) = 160

Number of students that liked only country music;

n(only country) = C - [(R ∩ C) + (C ∩ J) + (R ∩ C ∩ J)]

n(only country) = 161 - (19 + 11 + 11)

n(only C) = 120

Now, the number of students that like neither of the 3 music is;

A' ∩ B' ∩ C' =  500 - [(R ∩ C) + (R ∩ J) +  (C ∩ J) + (R ∩ C ∩ J) + n(only J) + n(only R) + n(only C)]

⇒ 500 - (80 + 120 + 160 + 19 + 16 + 11 + 11)

A' ∩ B' ∩ C' = 83

Thus, number of students that likes neither rock nor country is;

n(A' ∩ B') = (A' ∩ B' ∩ C') + n(only C)

n(A' ∩ B') = 83 + 80

n(A' ∩ B') = 163

Thus, probability that a randomly selected student likes neither rock nor country = 163/500 = 0.326

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a car insurance company paid 1758.90 to repair a car that has been rear ended. this was 75% towards the total cost of the repair. what was the total cost

Answers

Answer:

Step-by-step explanation:

$2345.20

The total cost price of the car is $2,345.2.

Given that, a car insurance company paid 1758.90 to repair a car that has been rear-ended. This was 75% of the total cost of the repair.

We need to find what was the total cost price of the car.

What is the cost price?

The amount paid to purchase an article or the price at which an article is made is known as its cost price. The cost price is abbreviated as C.P. Selling Price: The price at which an article is sold is known as its selling price. The selling price is abbreviated as S.P.

Let the total cost price be x.

Now, 75% of x=1758.90

⇒0.75×x=1758.90

⇒x=$2,345.2

Therefore, the total cost price of the car is $2,345.2.

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What is the solution to the system of equations? Use the substitution method. Y=?3x+12x+5y=18

Answers

The answer is

[tex]y = - 3x + \frac{18}{5} [/tex]

Ummm Hey,I don't know the answer for this question,when I solve the problem my answer always 6 but the real answer is 2 so I need help right now.

Answers

umm ok then its 2...

Complete the tables of values

Answers

The equations are shown in the top of the tables,

Replace x in the equations with the values of x given:

a = 4^-0 = 1

b = 4^-2 = 1/16

c = 4^-4 = 1/256

d = (2/3)^0 = 1

e = (2/3)^2 = 4/9

f = (2/3)^4 = 16/81

The value of a, b, c, d, e, and f are 1, 1/16, 1/256, 1, 4/9, and 16/81 after plugging the values of x.

What is an exponential function?

It is defined as the function that rapidly increases and the value of the exponential function is always positive. It denotes with exponent y = a×

where a is a constant and a>1

We have:

y = 4⁻ˣ

x = 0

a = 4⁻⁰ = 1

x = 2

b = 4⁻² = 1/16

x = 4

c = 4⁻⁴ = 1/256

y = (2/3)ˣ

x = 0

d = (2/3)⁰ = 1

x = 2

e = (2/3)² = 4/9

x = 4

f = (2/3)⁴ = 16/81

Thus, the value of a, b, c, d, e, and f are 1, 1/16, 1/256, 1, 4/9, and 16/81 after plugging the values of x.

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What is the sum of the given polynomials in standard from? (x^2 -3x) + (-2x^2+5x-3)

Answers

The pic will help you

Good luck:))

Given a triangle with angles of 23, 90, 67, what type of triangle is it: acute, equiangular, obtuse, or right?

Answers

Answer:

It is a right triangle because if it contains a 90 degree angle (a right angle), it's  a right triangle.

Step-by-step explanation:

It would be a right angled triangle because all triangles with a 90 degree angle are right angle triangles : 90 degrees is a right angle

WILL GIVE BRAINLIEST

Identify the factors of x2 + 16y2.

(x + 4y)(x + 4y)

(x + 4y)(x − 4y)

Prime

(x − 4y)(x − 4y)

Answers

Answer:

Prime

Step-by-step explanation:

Since none of the other answers work. Your answer is Prime.

Answer:

Prime

Step-by-step explanation:

(x + 4y)(x + 4y)  

Appy FOIL method to multiply it

x^2 +4xy + 4xy +16y^2

x^2 + 8xy +16y^2

(x + 4y)(x − 4y)  

Appy FOIL method to multiply it

x^2 -4xy + 4xy -16y^2

x^2 - 16y^2

(x − 4y)(x − 4y)

Appy FOIL method to multiply it

x^2 -4xy - 4xy +16y^2

x^2 - 8xy +16y^2

the options does not gives us x^2 +16y^2

So it is not factorable , It is prime

Factor completely, then place the factors in the proper location on the grid. 2a 2 + 2b 2 - 5ab

Answers

Answer:

[tex](2a-b)(a-2b) = 0[/tex]

Step-by-step explanation:

We can use the quadratic formula to factor this expression

For a quadratic function of the form:

[tex]na ^ 2 + ma + c[/tex]

Whe have:

[tex]2a^2 + 2b^2 - 5ab[/tex]

Then:

[tex]n = 2\\\\m = -5b\\\\c = 2b^2[/tex]

The quadratic formula is:

[tex]a =\frac{-m\±\sqrt{m^2-4nc}}{2n}[/tex]

Then the solutions are:

[tex]a= \frac{-(-5b)\±\sqrt{(-5b)^2 -4(2)(2b^2)}}{2(2)}\\\\a = \frac{5b\±\sqrt{25b^2-16b^2}}{4}\\\\a = \frac{5b\±3b}{4}\\\\a_1=2b\\\\a_2 =\frac{b}{2}[/tex]

Finally The factored expression is:

[tex]a-\frac{b}{2} = 0\\\\2a -b = 0\\\\[/tex]

and

[tex]a-2b= 0[/tex]

Then

[tex]2a^2 + 2b^2 - 5ab = (2a-b)(a-2b) = 0[/tex]

Find the value of y. m angle 1 = 4y+22

Answers

I believe y = 41

Hope this helped!

The answer would be -21/4

Here’s how you solve it!

First move the variable to the left side which makes it change the sign to a negative

-4y➕1=22

Then you move the constant to the other side and change the sign

-4y=22-1

Now you subtract

22-1=21

-4y=21

Then divide both sides by -4

Then you are left with your answer

Y=-21/4

Hope this helps! :3

A circle has a circumference of 11{,}30411,30411, comma, 304 units. What is the diameter of the circle?

Answers

Answer:

The diameter of the circle is [tex]3,600\ units[/tex]

Step-by-step explanation:

we know that

The circumference of a circle is equal to

[tex]C=\pi D[/tex]

where

D is the diameter

In this problem we have

[tex]C=11,304\ units[/tex]

assume [tex]\pi=3.14[/tex]

substitute the values and solve for D

[tex]11,304=(3.14)D[/tex]

[tex]D=11,304/(3.14)=3,600\ units[/tex]

Answer: 3,600 units

Step-by-step explanation:

A quadrilateral has all sides the same length and no right angels.What is the name of the quadrilateral

Answers

I think it's possibly a rhombus

The owner of a bike shop sells unicycles and bicycles and keeps inventory by counting seats and wheels . one day , she counts 15 seats and 22 wheels. The equation repesenting the total number of seats is u + b = 15 where u is the number of unicycles and b is the number of bicycles

Answers

Answer:

Step-by-step explanation:

U+b=15

7+8=15

Chuck's starting balance on his credit card was $268.23, and he made purchases of $125 and $98 during the month. He also made a payment of $100. If the finance charge is 1.4% per month on the unpaid balance, find the new balance at the end of the month.

Answers

Answer:

25.95

Step-by-step explanation:

Answer:

Roughly $396.71

Step-by-step explanation:

Chuck starts the month with $268.23 balance on his card

He makes a $125 and $98 purchase, add those two together to get $223, and then add that to the total starting balance of $268.23 to get $491.23.

At the end of the month, he made a $100 payment, subtracting $100 from the balance to get $391.23. $391.23 times 1.014 (Adding 1.4% converted into decimal form, to convert a percent into decimal form move the decimal left two places) equals $396.71

Alaska is the biggest state in the United States of America , write this as a biconditional statement

Answers

Final answer:

A biconditional statement regarding Alaska's size is 'Alaska is the biggest state in the United States of America if and only if no other state in the United States has more territory than Alaska.' This statement clarifies that Alaska's status as the largest state is based on a measurable, verifiable fact.

Explanation:

A biconditional statement is a logical assertion that combines two statements into one, where one statement implies the other, and vice versa. In this context, the statement 'Alaska is the biggest state in the United States of America' can be written as a biconditional statement as follows:

'Alaska is the biggest state in the United States of America if and only if no other state in the United States has more territory than Alaska.'

This biconditional statement emphasizes the fact that Alaska's status as the largest state is contingent on the condition that all other states must have less territory. This is a fact that is verifiable and not subject to opinion, underscoring the importance of factual accuracy in research and the careful use of evidence.

Which is NOT a major expense category?A) housingb) transportationc) electricityd) food???

Answers

Answer: the one that is not a magor epense catgortuy is c : transportation

Step-by-step explanation:

the answer is: C) transportation

1. the domain set of C = {( 2, 5), (2, 6), (2, 7)} {2} 2. the range set of E = {(3, 3), (4, 4), (5, 5), (6, 6)} domain = range = {all real numbers} 3. the range and domain of F = {(x, y ) | x + y =10} domain = {all real numbers}: range = {y: y = 3} 4. the range and domain of P = {(x, y ) | y = 3} {3, 4, 5, 6}

Answers

For the given sets, the domain of set C is {2}, and its range is {5, 6, 7}. Set E has both domain and range as {3, 4, 5, 6}.

A set of ordered pairs is defined as a relation. The domain of a relation is the set of all the first elements of the ordered pairs, and the range is the set of all the second elements. Let's look at the listed sets and determine their domains and ranges.

For set C = {( 2, 5), (2, 6), (2, 7)}, the domain is {2}, because 2 is the only first element in all the pairs. The range for set C is {5, 6, 7} since those are all the second elements in the pairs.The range of set E = {(3, 3), (4, 4), (5, 5), (6, 6)} is the set of y-values or second elements of the ordered pairs, which is {3, 4, 5, 6}. Since each pair has the same x and y values, the domain of E is also {3, 4, 5, 6}.For the relation F = {(x, y) | x + y = 10}, if the domain is all real numbers, then the range must also include all real numbers that can be paired with a number from the domain to sum up to 10.For relation P = {(x, y ) | y = 3}, regardless of the x values, if y is always 3, then the range is {3}. The domain can include any real number as x, but the specific domain provided is {3, 4, 5, 6}.

A function is a special type of relation where each element of the domain is associated with exactly one element in the range. This condition is also known as the vertical line test when graphing the relation on a coordinate plane.

I’ll give brainliest!! Help!! Paige has $213.84 deducted from her paycheck for her 401(k). Her gross paycheck amount is $1944. What percent of her gross paycheck amount does she have deducted for her 401(k)

9%


11%


13%

Answers

Answer:

11 %

Step-by-step explanation:

Percent = Amount deducted/original amount × 100 %

               = 213.84/1944 × 100 %

               = 11.00 %

Paige has 11.00 % of her paycheck deducted for her 401(k).

Answer:

11%

Step-by-step explanation:

What are the zeros of the function? f(x)=x(x−2)(x+6)

Select each correct answer.

−6​
−2
0
2
6

Answers

Answer:

-6,0,2

Step-by-step explanation:

f(x)=x(x−2)(x+6)

To find the zeros of the function, set the function equal to zero

0 =x(x−2)(x+6)

Using the zero product property

x=0  x-2 =0   x+6=0

Solve each equation

x=0  x=2    x=-6

There are three zero's

-6,0,2

A helicopter flying 1600 feet above ground spots an airplane flying above. If the horizontal distance between the helicopter and airplane is 3,055 feet and angle of elevation is 71 degrees, find the airplane’s altitude.

Answers

Answer: 10,472.36 feet

Step-by-step explanation:

- Observe the diagram attached (It is not drawn to scale).

- Calculate the height between helicopter and airplane (h), as following:

[tex]tan\alpha=\frac{opposite}{adjacent}\\\\tan(71\°)=\frac{h}{3,055}[/tex]

Solve for h:

[tex]h=(3,055)(tan(71\°))\\h=8,872.36ft[/tex]

- Therefore, the altitude of the plane is:

[tex]altitude=1,600ft+8,872.36ft\\altitude=10,472.36ft[/tex]

You can use the tangent ratio to find the airplane's altitude.

The altitude of the airplane in the given condition is 10,471.72 ft

What is angle of elevation?

You look straight parallel to ground. But when you have to watch something high, then you take your sight up by moving your head up. The angle from horizontal to the point where you stopped your head is called angle of elevation.

What is tangent ratio?

In a right angled triangle(triangle with one of the angles as right angle which is 90 degrees), seeing from perspective of an angle, the tangent ratio is the ratio of the side opposite to that angle and the side which is perpendicular to that opposite side.

How to find the airplane's altitude if angle of elevation is given?

Refer to the attached figure.
The altitude of the plane is the length of the line segment CE.

We have the rectangle ABDE, thus, AD = BE in terms of length.

(remember that |AB| means length of line segment AB).

Thus,
|CE| = |CB| + |BE| = |CB| + 1600 ft

Using the tangent ratio for triangle ABC from angle A, we get:

[tex]tan(A) = \dfrac{|CB|}{|AB|} = \dfrac{|CB|}{3055}\\\\tan(71) \approx 2.904 = \dfrac{|CB|}{3055}\\\\|CB| = 3055 \times 2.904 = 8.871.72 \: \rm ft[/tex]

Thus,

|CE| = |CB| + 1600  = 8871.72 + 1600 = 10,471.72 ft.

Thus,

The altitude of the airplane in the given condition is 10,471.72 ft

Learn more here about trigonometric ratios here:

https://brainly.com/question/22599614

Problem Eight days ago, I put 50 sheets of paper in my binder. I used the same number of sheets each day. Now I only have 2 sheets left. How many sheets of paper did I use each day?

Answers

As given,

Number of sheets of paper put in the binder 8 days ago = 50 sheets

Current number of sheets left after 8 days = 2 sheets

So, number of sheets used in 8 days = [tex]50-2=48[/tex] sheets

As it is stated that the same number of sheets are used each day, so number of sheets used per day = [tex]\frac{48}{8}=6[/tex] sheets.

Hence, 6 sheets of paper were used each day.

Answer:

6

Step-by-step explanation:

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