match each complex number with its equivalent expression

Answer:

The answer is 9/11.

Step-by-step explanation:

To find the answer you'd first add up how many patients you have:

80+10+20 = 110.

Now find out that how many patients are taking a real drug, which is represented by 80+10 = 90.

So, the probability of a patient NOT getting a placebo is 90/110

Simplified would be 9/11

Thus the answer is 9/11....

X axes are supposed to be positive and the y is negative.

Answer:

(y + 1)

Step-by-step explanation:

Given

5y² + 4y - 1

To factorise the quadratic

Consider the factors of the product of the coefficient of the y² term and the constant term which sum to give the coefficient of the y- term

product = 5 × - 1 = - 5 and sum = + 4

The factors are + 5 and - 1

Use the factors to split the y- term

5y² + 5y - y - 1 ( factor the first/second and third/fourth terms )

= 5y(y + 1) - 1(y + 1) ← factor out (y + 1) from each term

= (y + 1)(5y - 1)

The most beneficial banking service for a customer with a new debit card would be no ATM fees, as this would save money on transactions, which is especially important given that banks tend to charge for non-interest income such as ATM and overdraft fees.

For a customer who just obtained a debit card, the most beneficial banking service would be no ATM fees. Debit cards give users the ability to access their funds through an ATM. Considering banks are profit-oriented and look to maximize non-interest income through various fees as described, ATM fees can be a frequent and unnecessary expense. ATM fees average $2.97 per transaction and can quickly accumulate, especially if withdrawals are made at out-of-network ATMs, which add even more to the cost. Therefore, selecting a banking service with no ATM fees would save the cardholder potential costs associated with accessing their money.

No overdraft protection would mean the cardholder could be charged substantial overdraft fees if they were to spend more than the balance in their checking account. Given that these fees can be very high, it's better to either have overdraft protection or manage the account carefully to avoid overdrafting. On the other hand, a $25 yearly fee is a fixed cost and might be worth it if the benefits provided surpass the fee, but it is generally an additional expense that can be avoided with careful account selection. Lastly, 0% financing is typically associated with credit cards rather than debit cards and the quoted 'introductory' rates can be misleading, often coming with hidden fees and high interest rates after the introductory period ends.

The area of the pentagon is 130.5 sq.inches

Apothem is the line that extends from the pentagon's center to a side and makes a 90° right angle with the side.

The basic formula for calculating the area of a regular pentagon is Area of pentagon = 1/2 p a, where p denotes the pentagon's perimeter and a denotes its apothem.

perimeter = 5 * 8.7 = 43.5

a = 6

area = 1/2 * 43.5 * 6 = 130.5

Therefore, The area of the pentagon is 130.5 sq.inches

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Answer:

x=2π/3+π n

Step-by-step explanation:

Solve the trigonometric equation by isolating the function and then taking the inverse. Use the period to find the full set of all solutions.

The solution to tan X + √(3) = 0 is option D)300°.

Trigonometric identities are the functions that include trigonometric functions such as sine, cosine, tangents, secant, and, cot.

Given function;

tan X + √(3) = 0

Solving;

tan X = -√(3)

tan X = -(tan 60) = 300 degrees (beacuse of negative)

Here, the tangent function is posittive in the first and the third quadrants.

The solution to tan X + √(3) = 0 is option D)300°.

The remaining question is

'Which of the following is a solution to tanx+sqrt3=0?

A)60°

B)150°

C)240°

D)300°'

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Answer:approximatly 800 inches is the distance between Scott and Steve

Step-by-step explanation: 40 revolutions * 20 inches

The approximate distance between Scott and Steve is 2513.27 inches.

In mathematics, expression is defined as the relationship of numbers, variables, and functions using mathematical signs such as addition, subtraction, multiplication, and division.

Each revolution of the bicycle tire covers a distance equal to the circumference of the tire, which is equal to pi times the diameter of the tire.

The distance travelled by the bicycle tire for 40 full revolutions is:

Distance = 40 x π x 20 inches

Distance ≈ 2513.27 inches

Therefore, the approximate distance between Scott and Steve is 2513.27 inches.

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Mode means the number that appears most often in the data. Below I provided a tally of how many each of the numbers appear

59: twice

57: once

56: once

50: once

58: once

51: once

54: once

59: once

55: once

52; once

53: once

As you can see 59 appears the most often, being listed twice in the data set, and is therefore the mode

Hope this helped!

Answer:

your answer would be 59 scenice it goes twice i hope this helps have a great day

Step-by-step explanation:

Answer:

-6718464

Step-by-step explanation:

-4x-6=24

24x-6=-144

and keep on doing times -6 6 more times

Answer: The sum is 25220

Step-by-step explanation:

1) -4

2) -4*-6 =24

3) 24*6 = 144

4) 114*-6 = -864

5) -864*6 = -5184

6) -5184*-6= 31104

The sum is: 25220

Answer:

Step-by-step explanation:

[tex]\dfrac{2}{3}(3x+9y)+\dfrac{1}{2}(4x-2y)\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\=\left(\dfrac{2}{3\!\!\!\!\diagup_1}\right)(3\!\!\!\!\diagup^1x})+\left(\dfrac{2}{3\!\!\!\!\diagup_1}\right)(9\!\!\!\!\diagup^3y})+\left(\dfrac{1}{2\!\!\!\!\diagup_1}\right)(4\!\!\!\!\diagup^2x})+\left(\dfrac{1}{2\!\!\!\!\diagup_1}\right)(-2\!\!\!\!\diagup^1y})\\\\=2x+(2)(3y)+2x-y=2x+6y+2x-y\qquad\text{combine like terms}\\\\=(2x+2x)+(6y-y)=4x+5y[/tex]

ANSWER

[tex]p(x) =( x - 3)(2{x} + 1)(x + 2)[/tex]

EXPLANATION

The given polynomial is

[tex]2 {x}^{3} - {x}^{2} - 13x - 6[/tex]

If 3 is a root of this polynomial, then

[tex]x - 3[/tex]

is a factor.

We use long division to obtain the quotient as shown in the attachment.

We can the factor the polynomial as:

[tex]p(x) =( x - 3)(2{x}^{2} + 5x + 2)[/tex]

The complete factored form is:

[tex]p(x) =( x - 3)(2{x} + 1)(x + 2)[/tex]

Answer:

3120

Step-by-step explanation:

step 1:multiply 8 with 0 and 7 with 0

step 2:add a 0 in the end and multiply 8 with 4 . you get 32. take 2 and carry over 3. multiply 7 with 4. you get 28 . add 3 you get 31. now add. you get 3120

Answer:

3120

Explanation:

Step 1: 0 multiply by 8 give 0

Step 2: 0 multiply by 7 give 0

Step 3: put the number 0 in the right side

Step 4: 4 multiply by 8 give 32

Step 5: add the number 3 to the answer we are going to get for 4 multiply by 7 which is 28+3=31

Answer:

B. 34

Step-by-step explanation:

Perimeter= 42+42+x+x

First add the 42 together

42+42 =  84

Then subtract the number away because this was added to the total

152 - 84 = 68

68 is not your missing number

Dividing 68 by 2 which gives you 34

So,

Perimeter = 42+42+34+34 = 152

The figure is separated into triangles.

The triangle has a base of 8 inches and a hypotenuse of 10 inches.

Using the Pythagorean theorem solve for the height of the triangle:

10^2 = 8^2 + x^2

100 = 64 + x^2

x^2 = 100-64

x^2 = 36

x = √36

x = 6

The height of the triangle is the width of the rectangle and the length of  the rectangle is 2 triangle bases ( 8 * 2 = 16)

Area of a rectangle is L x W = 6 x 16 = 96 square inches.

Answer:

c

Step-by-step explanation:

16X12.49=199.84

For this case we can raise a rule of three:

$ 12.49 ---------------> 1 yard

x -------------------------> 16 yards

Where the variable "x" represents the cost of the 16 yards.

[tex]x = \frac {16 * 12.49} {1}\\x = 199.84[/tex]

Thus, the cost of the 16 yards will be 199.84 dollars.

Answer:

Option C

So what I would do is plug in the point into each system:

#1:

y > 0        (-3,0) since y = 0, plug in 0 for y

0 > 0       This can't be true because they are = to each other, so you would need to have a sign of either ≤ or ≥ (less/greater than or equal to) for the point to be a solution to the system

#2 is the same "0 < 0" can't be true

#3

0 ≤ 0 this is true

y > x + 9     Plug in the point (-3,0)

0 > -3 + 9   Simplify

0 > 6 This is false because 0 is not greater than 6

#4

0 ≥ 0    This is true

0 < -3 + 9

0 < 6     This is true because 0 is less than 6

---->       4th option is your answer

To solve the problem, we need to find the area of the triangle, and then find 2/3 of that triangle.

The equation to find the area of a triangle is bh1/2 or base*height*1/2.

Now substitute the known values.

24*16*1/2

Solve

24*8

192.

Now, the easiest way to find 2/3 of a number is to divide that number by 3 and multiply the answer by 2.

192/3=64

64*2=128

Omar kept 128 square centimeters of the flag.

Hope this helps!

[tex] \frac{16 \times 24}{2} = \frac{384}{2} = 192[/tex]

192 is the total area of the triangle; since he kept 2/3 of the flag divide the area by three and times it by two:

[tex]192 \div 3 = 64 \times 2 = 128[/tex]

answer is 128cm^2

ANSWER

Rewrite and make substitution.

EXPLANATION

Since Harriet calculated 27 divided 4 and had 6.75.

This means that:

[tex] \frac{27}{4} = 6.75[/tex]

Now we want to find

[tex] \frac{270}{4} [/tex]

without divide.

Therefore we need to rewrite the expression so in terms of

[tex] \frac{27}{4} [/tex]

so that we can substitute.

This will give us;

[tex] \frac{270}{4} = \frac{27}{4} \times 10[/tex]

This implies that,

[tex]\frac{270}{4} = 6.75 \times 10[/tex]

[tex]\frac{270}{4} = 67.5[/tex]

Your answer would be 64. To find this, you would follow PEMDAS, and multiply 6*5. You would then get 30. From there, you would add 30 to 34, getting 65. Hope this helped! Please mark brainliest! Thank you v much! :)

Answer:

64

Step-by-step explanation:

34+6.5=30+34=64:)

Answer:

A)

58/3 = 19.33 hours

B)

84.00 hours

C)

2074.29 miles

Step-by-step explanation:

Under the assumption the earth is a perfect circle, then in a complete rotation ( 24 hours) the earth will rotate through  360 degrees or 2π radians.

A)

In one day or 24 hours the earth rotates through 360 degrees. We are required to determine the duration it takes to rotate through 290 degrees. Let x be the duration it takes the earth to rotate through 290 degrees, then the following proportions hold;

(24/360) = (x/290)

solving for x;

x = (24/360) * 290 = 58/3 = 19.33 hours

B)

In 24 hours the earth rotates through an angle of 2π radians. We are required to determine the duration it will takes the Earth to rotate through 7π radians. Let x be the duration it takes the earth to rotate through 7π radians, then the following proportions hold;

(24/2π radians) = (x/7π radians)

Solving for x;

x = (24/2π radians)*7π radians = 84 hours

C)

If the diameter of the earth is 7920 miles, then in a day or 24 hours a point on the equator will rotate through a distance equal to the circumference of the Earth. Using the formula for the circumference of a circle;

circumference = 2*π*R = π*D

                         = 7920*3.142

                         = 24891.43 miles

Therefore a point on the equator covers a distance of 24891.43 miles in 24 hours. This will imply that the speed of the earth is approximately;

(24891.43miles)/(24 hours) = 1037.14 miles/hr

The distance covered by the point in 2 hours will thus be;

1037.14 * 2 = 2074.29 miles

Answer:

x=11, y=8/3

Step-by-step explanation:

Consider quadrilateral LMNO. If this quadrilateral MUST BE a parallelogram, then

LM=NO

and

LO=MN

Thus,

[tex]\left\{\begin{array}{l}4x+4=5x-7\\ \\x-7=3y-4\end{array}\right.[/tex]

Solve this system of two equations. From the first equation:

[tex]4x-5x=-7-4\\ \\-x=-11\\ \\x=11[/tex]

Substitute it into the second equation:

[tex]11-7=3y-4\\ \\3y-4=4\\ \\3y=4+4\\ \\3y=8\\ \\y=\dfrac{8}{3}[/tex]

8 units

First, find the area of the 4 by 16 rectangle. 4 times 16 is 64, so that is the area.

The area of a square is calculated with A = S^2, where A is the area and S is the side length.

So, set 64 to be the area and solve for S. 64 = S^2

The opposite of squaring something is finding the square root. So, find the square root of both sides.

square root of 64 = S

Now, what is the square root of 64? Well, what number when multiplied by itself equals 64? There are actually two possibilities here: -8 and 8. However, -8 cannot be the answer since distance cannot be negative, so 8 is the length of the side.

Answer:

D. 22

Step-by-step explanation:

Let O be the origin, then we can use the Pythagoras Theorem to obtain:

[tex]|AB|^2=|AO|^2+|OB|^2[/tex]

This implies that;

[tex]|AB|^2=14^2+16^2[/tex]

[tex]|AB|^2=196+256[/tex]

[tex]|AB|^2=452[/tex]

Take positive square root to get:

[tex]|AB|=\sqrt{452}[/tex]

[tex]|AB|=\sqrt{113}[/tex]

[tex]|AB|=21.26029163[/tex]

We round to the nearest whole number to get

[tex]|AB|=21[/tex] units

The closes is 22

You can FOIL (First, Outside, Inside, Last)

(3z+1)(4z+2)

First

(3z+1)(4z+2)

3z * 4z

[tex]12z^{2}[/tex]

Outside

(3z+1)(4z+2)

3z * 2

6z

Inside

(3z+1)(4z+2)

4z * 1

4z

Last

(3z+1)(4z+2)

2*1

2

Combine all the products of FOIL together

[tex]12z^{2}[/tex] + 6z + 4z + 2

Combine like terms

[tex]12z^{2}[/tex] + 10z + 2

Hope this helped!

~Just a girl in love with Shawn Mendes

Answer:

Option A.

Step-by-step explanation:

The given sequence is 1.5, 3, 6............

We will check first whether the the given sequence is arithmetic or geometric.

For arithmetic sequence

[tex]a_{2}-a_{1}=3-1.5=1.5[/tex]

[tex]a_{3}-a_{2}=6-3=3[/tex]

1.5 ≠ 3, therefore, the given sequence is not an arithmetic sequence.

For geometric sequence

[tex]\frac{a_{2} }{a_{1} }=\frac{3}{1.5}=2[/tex]

[tex]\frac{a_{3} }{a_{2} }=\frac{6}{3}=2[/tex]

2 = 2, therefore, sequence is geometric.

For geometric sequence explicit formula is defined as

[tex]a_{n}=a_{1}(r)^{n-1}[/tex]

[tex]a_{7}=1.5(r)^{7-1}[/tex]

              = [tex]1.5(2)^{6}=96[/tex]

Therefore, Option A. is the answer.

Answer:

A, 96 have an amazing day!!!

Step-by-step explanation:

ANSWER

D. 13

EXPLANATION

We have

[tex]f(x) = \frac{2x + 1}{x - 4} [/tex]

To find

[tex] {f}^{ - 1} (3)[/tex]

means we want to find an x-value whose image is 3.

[tex]\frac{2x + 1}{x - 4} = 3[/tex]

We cross multiply,

[tex]2x + 1 = 3(x - 4)[/tex]

Expand:

[tex]2x + 1 = 3x - 12[/tex]

Combine like terms,

[tex]3x - 2x = 12 + 1[/tex]

[tex]x = 13[/tex]

[tex] \therefore{f}^{ - 1} (3)= 13[/tex]

Answer:

Option D is correct.

Step-by-step explanation:

[tex]f(x)= \frac{2x+1}{x-4} \,\,find \,\,value\,\,of\,\, f^{-1}(3)[/tex]

We know that f(a) =b ⇔ f^-1 (b) =a

Using this,

We are given [tex]f^{-1}(3)=x => f(x)=3[/tex]

and [tex]f(x)= \frac{2x+2}{x-4}[/tex]

putting value of f(x)

[tex]3= \frac{2x+1}{x-4}\\3(x-4) = 2x+1\\3x-12 = 2x+1\\Adding\,\,like\,\,terms\,\,\\3x-2x = 12+1\\x=13\\So, f^{-1}(3) = 13[/tex]

Option D is correct.

Answer:

[tex]r=\frac{9\cos \theta}{\sin^2 \theta}[/tex]

Step-by-step explanation:

The given equation in rectangular coordinates is;

[tex]y^2=9x[/tex]

We use the relation;

[tex]x=r\cos \theta[/tex]

and

[tex]y=r \sin \theta[/tex]

This implies that;

[tex](r \sin \theta)^2=9(r \cos \theta)[/tex]

[tex]r^2 \sin^2 \theta=9r \cos \theta[/tex]

Divide through by r to get;

[tex]r \sin^2 \theta=9\cos \theta[/tex]

Divide both sides by [tex]\sin^2 \theta[/tex]

[tex]r=\frac{9\cos \theta}{\sin^2 \theta}[/tex]

Answer:

Option C. [tex]784\pi\ units^{2}[/tex]

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared

Let

z-----> the scale factor

x----> surface area of the sponge ball

y----> surface area of a plastic ball

[tex]z^{2}=\frac{x}{y}[/tex]

we have

[tex]z=2[/tex]

[tex]y=196\pi\ units^{2}[/tex]

substitute and solve for x

[tex]2^{2}=\frac{x}{196\pi}[/tex]

[tex]x=4*(196\pi)=784\pi\ units^{2}[/tex]

Consider a striking deviation as an outlier (Something that stands out in a pattern, EX: 2, 3, 4, 4, 4, 5, 5, 10 where the outlier would be 10.) Because there is a piece of data at 25-30 minutes that deviates (Or, separates, in a way), it would be considered an outlier (Or, a Striking deviation). Using this information, we can conclude that the answer would be A: 25-30 minutes.

[tex]\bf q^7\div q^{26}q^7\div q^{26}\implies \cfrac{q^7}{1}\div \cfrac{q^{26}q^7}{1}\div \cfrac{q^{26}}{1}\implies \cfrac{\begin{matrix} q^7 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix} }{1}\cdot \cfrac{1}{q^{26}~~\begin{matrix} q^7 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix} }\cdot \cfrac{1}{q^{26}} \\\\\\ \cfrac{1}{q^{26}q^{26}}\implies \cfrac{1}{q^{26+26}}\implies \cfrac{1}{q^{52}}\implies q^{-52}[/tex]