Find the exact circumference of a circle with the given radius 5” c=?

Answer:

the answer is 61units

n=61

Step-by-step explanation:

Answer:

The answer is A; 19

Step-by-step explanation:

4 × (3/4 - 2/4) + 3 × 6

= 4 × 1/4 + 3 × 6

= 1 + 3 × 6

= 1 + 18

= 19

The number √{13} is an irrational number because it cannot be expressed as a ratio of two integers and is not a whole number or integer either.

The number √{13} is not a whole number, an integer, or a rational number because it cannot be expressed as a ratio of two integers. The square root of a positive number that is not a perfect square is always irrational. Therefore, the only correct choice for the type of number that represents √{13} is (Choice D) Irrational.

Answer:

The vertical asymptote is [tex]x=3[/tex]

Step-by-step explanation:

we know that

The vertical asymptote is the value of x that makes the denominator equal to zero:

In this problem we have

[tex]f(x)=\frac{6}{x-3}[/tex]

[tex]x-3=0[/tex]

Solve for x:

[tex]x-3+3=0+3[/tex]

[tex]x=3[/tex]

The vertical asymptote is [tex]x=3[/tex]

see the attached figure to better understand the problem

Answer:

Standard Deviation is:  2.09762 or rounded to nearest tenth is 2.1

Step-by-step explanation:

The maximum happens at x = -b/2a

x = -48/2(-16) = 3/2

Now replace x in the equation and solve for y:

y = 48(3/2) - 16(3/2)^2

y =  -72 - 36

y = 36

The maximum height is 36 feet.

Answer:

The area of one of the bases is 0.96 ft²

The area of each lateral rectangular face is 4.8 ft²

The surface area of the paperweight is 6.72 ft²

Step-by-step explanation:

we know that

The surface area of the rectangular prism is equal to

SA=2B+LA

where

B is the area of one of the bases

LA is the lateral area of the prism

Find the area of one of the bases B

B=(0.8)(1.2)=0.96 ft²

Find the lateral area LA

The lateral area is the area of each lateral rectangular face

LA=2[(0.8)(1.2)]+2[(1.2)(1.2)]=4.8 ft²

Find the surface area

SA=2(0.96)+4.8=6.72 ft²

Answer: 1.44, 0.96, and then 6.72.

Step-by-step explanation:

the person who answered first is wrong.

Answer:

The function describing the relationship of V and t is V = 3t²

Step-by-step explanation:

* Lets explain the meaning of direct variation

- The direct variation is a mathematical relationship between two

  variables that can be expressed by an equation in which one

  variable is equal to a constant times the other

- If Y is in direct variation with x (y ∝ x), then y = kx, where k is the

 constant of variation

* Now lets solve the problem

# V is varies directly with the square  of t

- Change the statement above to a mathematical relation

∴ V ∝ t²

- Chang the relation to a function by using a constant k

∴ V = kt²

- To find the value of the constant of variation k substitute V and t

 by the given values

∵ t = 6 when V = 108

∵ V = kt²

∴ 108 = k(6)² ⇒ simplify the power 2

∴ 108 = 36k ⇒ divide both sides by 36 to find the value of k

∴ 3 = k

- The value of the constant of variation is 3

∴ The function describing the relationship of V and t is V = 3t²

Answer: Option A

50 minutes

Step-by-step explanation:

Observe in the diagram that the vertical axis represents the score obtained and the horizontal axis represents the study time.

To find out how many hours the person with a score of 81 studied, locate the point that is at a vertical distance of 81.

Now draw a vertical line from this point to the horizontal axis. Note that the vertical line traced intercepts the vertical axis at x= 50

Then the person who got a score of 81 studied 50 minutes

The answer is the option A

Answer:

The correct option is D.

Step-by-step explanation:

It is given that Issouf claims that the scale factor is 1/2.

From the given figure it is clear that

[tex]CB'=C'B'=2[/tex]

[tex]B'B=6[/tex]

[tex]CB=CB'+B'B=2+4=6[/tex]

The scale factor of a figure is

[tex]k=\frac{\text{Length of any side of image}}{\text{Length of corresponding side of preimage}}[/tex]

[tex]k=\frac{C'B'}{CB}[/tex]

[tex]k=\frac{2}{6}[/tex]

[tex]k=\frac{1}{3}[/tex]

The scale factor is 1/3 because CB is actually 2 + 4 = 6.

Therefore the correct option is D.

I’m pretty sure the answer is (-4, 4) because when the equations are equal, that is when the points intersect. That happens to be at point (-4,4)

Answer: $8.2

Step-by-step explanation:

Answer:

8.2 dollars an hour is the answer

Step-by-step explanation:

50.43 divided by 6.15 is 8.2

Answer:

the 1st one

Step-by-step explanation:

Answer:

the equation of the perpendicular bisector of segment AB is y = -2x + 7

Step-by-step explanation:

Going from B(-1, 4) to A(3, 6), x increases by 4 and y increases by 2.  Thus, the slope of this line is m = rise / run = 2/4, or 1/2.

Any line perpendicular to the one joining A and B has a slope which is the negative reciprocal of 1/2:  that'd be -2.

                                                               3 - 1       6 + 4

The midpoint of line segment AB is ( --------- , ---------- ), or (1, 5)

                                                                  2            2

Thus, the perpendicular bisector passes through the midpoint (1, 5) and has slope -2:

Starting from y = mx + b, we get  5 = -2(1) + b, or 7 = b, and so the equation of the perpendicular bisector of segment AB is

y = -2x + 7

Answer:

36

Step-by-step explanation:

6(2b-4)

Let b = 5

6(2 (5)-4)

Work inside the parentheses out

6(10-4)

6(6)

36

Answer:

36

Step-by-step explanation:

Well, we can do this 2 ways: Distribute first, or do it last.

Distribute First:

12b-24=

12(5)-24=

60-24=

36

Distribute last:

6(2(5)-4)=

6(10-4)=

Now you can take this two ways.

Distribute:

60-24=36

OR

Parenthessess: (I dont know how to spell.)

6(6)=36

Answer:

y = 9.75

Step-by-step explanation:

(4y - 3)2 = 72

Opening the brackets;

8y - 6 = 72

8y = 72 + 6 = 78

y = 78 ÷ 8 = 9.75

Answer:

[tex]y = \frac{3+6\sqrt{2}}{4}\text{ and } y = \frac{3-6\sqrt{2}}{4}[/tex]

Step-by-step explanation:

Given quadratic equation,

[tex](4y-3)^2=72[/tex]

[tex]\implies 4y - 3 = \pm \sqrt{72}[/tex]   ( Taking root on both sides )

[tex]4y=3 \pm 6\sqrt{2}[/tex]     ( Additive property of equality ),

[tex]y = \frac{3 \pm 6\sqrt{2}}{4}[/tex]   ( Division property of equality )

[tex]\implies y = \frac{3+6\sqrt{2}}{4}\text{ or }y =\frac{3-6\sqrt{2}}{4}[/tex]

Hence, the solution of the given equation is,

[tex]\implies y = \frac{3+6\sqrt{2}}{4}\text{ and }y =\frac{3-6\sqrt{2}}{4}[/tex]

Answer:

-100

Step-by-step explanation:

Answer:

-100

Step-by-step explanation:

You need to multiply

-20 x 5= -100

Hope this helped please mark me the brainliest answer? Have a good day :)

Answer:

2,180 people

Step-by-step explanation:

Let

x-----> number of people at the book fair

we know that

1) 1/4 of the people bought 1 book each

(1/4)x=(5/20)x

2) 3/5 of the remaining  people bought 2 books each

The remaining people is (3/4)x

so

(3/5)(3/4)x=(9/20)x

3) the rest of the people bought 3  books each

The rest of the people is x-(5/20)x-(9/20)x=(6/20)x

The linear equation that represent this situation is

(1)*(5/20)x+(2)*(9/20)x+(3)*(6/20)x=4,469

(5/20)x+(18/20)x+(18/20)x=4,469

(41/20)x=4,469

x=4,469*20/41

x=2,180 people

Answer:

80%

Step-by-step explanation:

According to the given data, the numbers 0 through 6 represent students who sent a text yesterday while the numbers 7 through 9 represent students who did not send a text yesterday.

Based on this key, we will calculate the number of students who sent the text yesterday and the number of students who did not sent the text yesterday.

The given data is: 62072, 34570, 80983, 04292, 83150, 36330, 96268, 14077, 77985, 13511

For each group we will identify how many students sent the text and how many students did not. According to the key, a number from 0 to 6 will be counted as a student who sent the text and a number from 7 to 9 will be counted as a student who did not send the text. Students who did not sent the text are made bold in the groups below.

62072:  4 students sent the text, 1 did not

34570:  4 students sent the text, 1 did not

80983:  2 students sent the text, 3 did not

04292:  4 students sent the text, 1 did not

83150:   4 students sent the text, 1 did not

36330:  All 5 students sent the text

96268:  3 students sent the text, 2 did not

14077:   3 students sent the text, 2 did not

77985:  1 student sent the text, 4 did not

13511:    All 5 students sent the text

We need to find the probability that 3 or more of a group of 5 students randomly selected will send a text today.

From the given groups, the number of groups where 3 or more students sent a text = 8

This represents our number of favorable or desired outcomes.

Total number of possible outcomes is the total number of groups = 10

Since, probability is defined as the ratio of number of favorable outcomes to total number of outcomes, based on the simulated data  the probability that 3 or more of a group of 5 students randomly selected will send a text today will be = [tex]\frac{8}{10}=0.80=80\%[/tex]

Thus, based on the simulated data there is 80% probability that 3 or more of a group of 5 students randomly selected will send a text today

Answer:

The answer is 80% or 4/5(;

Step-by-step explanation:

Answer:

1725ft^2

Step-by-step explanation:

Hi!

First you have to find your two bases B1 and B2, which are 50 and 65.

Then you find the height, which is 30ft.

Finally, you plug those into the equation 1/2*h*(B1+B2) and solve.

1/2*30*(50+65)

1/2*30*(115)

15*115

1725ft^2 is your answer.

I hope this helps!

Answer:

- i + 4

Step-by-step explanation:

Given a complex number a + bi then the complex conjugate is a - bi

Note the real part remains unchanged while the sign of the imaginary part is negated.

Hence conjugate of i + 4 = - i + 4

Answer:

A. [tex]g(x)=(x-4)^2[/tex]

Step-by-step explanation:

The graph of [tex]f(x)=x^2[/tex] is transformed to obtain the graph of g(x).

We can see from the diagram that, f(x) is shifted 4 units to the right to obtain the graph of g(x).

Therefore [tex]g(x)=f(x-4)[/tex].

Hence the equation of g(x) is

[tex]g(x)=(x-4)^2[/tex]

The correct answer is A.

The equation of the graph of g(x) is g(x) = (x - 4)²

From the graph shown, we can see that the f(x) = x² as shown is shifted   4 units to the right to obtain the graph of g(x).

Then, we have that this shift can be achieved by replacing x in the equation of f(x) with x - 4 to represent the horizontal shift.

We have the equation of the graph of g(x), to be;

g(x) = (x - 4)²

This equation represents a horizontal shift of the graph of f(x) by by 4 units to the right, as g(x) remains the same shape f(x) but is  shifted horizontally to the right by 4 units.

Learn about graphs at: https://brainly.com/question/19040584

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Answer:

1)163.28 (3.14*52)

2)13ft 6in (163.28/12)

3)129 times

4) 31 times

Step-by-step explanation:

1) multiply 52 times pie(3.14)

2)divide 163.28(your total) by 12

3) 1760 divided by 52

4) 1760 divided by 56.52

this is for the other 2 ones

This ODE is separable:

[tex]\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{4y}{x^2}\implies\dfrac{\mathrm dy}y=\dfrac4{x^2}\,\mathrm dx[/tex]

Integrating both sides gives

[tex]\ln|y|=-\dfrac4x+C[/tex]

Given the initial condition [tex]y(-4)=1[/tex] we find

[tex]\ln|1|=-\dfrac4{-4}+C\implies C=-1[/tex]

so that the particular solution is

[tex]\ln|y|=-\dfrac4x-1[/tex]

[tex]\implies y=e^{-(1+4/x)})[/tex]

so the answer is D.

Answer:

brainliest ps :)

Step-by-step explanation:

her wage is $4.00 + s*0.5 so 7.25-4> s*.5== 3.25 > s*.5 == 6.5 > s

The inequality for the given information can be written as 6.5 > s.

When two expressions are connected by a sign like "not equal to," "greater than," or "less than," it is said to be inequitable. The inequality shows the greater than and less than relationship between variables and the numbers.

A lifeguard at a swimming pool gives one-hour swim lessons to children in the morning before the pool is open to the public. She earns four dollars per class and fifty cents per swimmer. The minimum wage in her state is $7.25.

The inequality can be written as:-

$4.00 + ( s x 0.5 )

7.25-4 > ( s x 0.5 )

3.25 > ( s x 0.5 )

6.5 > s

To know more about inequality follow

https://brainly.com/question/28626109

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Answer:

The area of the kite is 60 square feet

Step-by-step explanation:

The area of a kite is given as half multiplied by the product of the diagonals.

The longer diagonal measures 30 feet.

The shorter diagonal measures 4 feet.

The area of the kite is; [tex]\frac{1}{2}*30*4=60[/tex]

ANSWER

The area of the kite is 60 square feet

EXPLANATION

The area of a kite is half times the product of the diagonals.

The longer diagonal is 10+20=30 feet.

The shorter diagonal is 2+2 =4 feet.

The area of this kite

[tex] = \frac{1}{2} \times 30 \times 4[/tex]

This simplifies to,

[tex] = 60 {ft}^{2} [/tex]

Therefore the area of the kite is 60 square feet

Answer:

C. 66

Step-by-step explanation:

32 + x =98

The sum of interior angles of a triangle add up to the exterior opposite angle;

solving for x yields;

x = 98 - 32

x = 66 degrees

Answer:

x = 66°

Step-by-step explanation:

Since DAC is a straight line, the angles must add up to 180° and 98° is given so the missing angles is 180° - 98° = 82°

Angles in a triangle add up 180° and 32° and 82° are given →

x + 32° + 82° = 180°

x + 114° = 180°

x = 66°

Answer:

Option C is correct.

Step-by-step explanation:

Andy tested gemstones already = 30

Jacob tested gemstones already = 40

Total gemstones tested by Andy and Jacob already = 30+40 = 70

Andy continue to test gemstones per hour = 30

Jacob continue to test gemstones per hour = 25

Total gemstones tested by Andy and Jacob per hour = 30 +25 = 55

The total number of gemstones tested by Andy and Jacob after x hours will be: 55x

So, the equation will be: f(x) = 55x + 70

After 5 hours i.e. x =5

f(5) = 55(5) + 70

f(5) = 275 + 70

f(5) = 345

Andy and Jacob will have tested 345 gemstones in 5 hours.

So, Option C is correct.

Answer:

6038 x 1

or

603.8 x 10

1 foot = 12 inches.

The president is 6 x 12 = 72 inches tall.

54 inch model / 72 inches = 0.75 = 3/4

The model is 3/4 scale.