Given this equation of the function f(x)=7x+9. Find f(−2).

Answer: 16 pieces.

Step-by-step explanation:

Suppose that we have a set with N numbers

{x₁, x₂, x₃, ..., xₙ}

The mean of this set is calculated as:

M = (x₁ + x₂ + x₃ + ...  + xₙ)/N

In this case, our set is:

{14, 12,  22, 8, 24}

So we have N = 5.

The mean of this set will be:

M = (14 + 12 + 22 + 8 + 24)/5 = 16

The average/mean number of pieces of sushi he got on each trip is 16 pieces.

Answer:

Evaluate 7j+5-8k when j=0.5 and k=0.25 Get the answers you need, now!

2 answers

Step-by-step explanation:

Answer:

6.5

Step-by-step explanation:

(7*0.5)+(5)-(8*0.25)

PEMDAS

Multiply 7 and 0.5= 3.5

Multiply 8 and 0.25= 2

3.5+5-2

Add 3.5 and 5= 8.5

Subtract 8.5 and 2= 6.5

Answer:

¼x+2 pencils

Step-by-step explanation:

¼ of (x+8)pencils

¼×(x+8)

¼x+2

Answer:

what is the question

Step-by-step explanation:

Answer:

3x+4y=18 and 5x+2y=16

x=the cost of the sodas

y=the cost of the iced teas

then you do

3x+4y=18, and 10x+4y=32 (the equation is still equivalent to 5x+2y=16, you just doubled it)

next,

10x+4y=32

-3x-4y=-18 (once the y's match, make one negative and one positive)

which leaves you with:

7x=14

which means

x=2

Plug the x value back into the equation, for this I chose to plug it back into 3x+4y=18

3(2)+4y=18

6+4y=18

4y=12

y=3

so the final answer is x=2, and y=3

Answer:

h=2

Step-by-step explanation:

Answer:

32+d

Step-by-step explanation:

because it's asking for 32 added on to whatever d is

example

if d=5 it would be asking what's 32 +5

help please someone

The volume of the rectangular prism is given by the equation

A = 13 1/2 inches³

What is the Volume of a Rectangle?

The volume of the rectangle is given by the product of the length of the rectangle and the width of the rectangle and the height of the rectangle

Volume of Rectangle = Length x Width x Height

Volume of Rectangle = Area of Rectangle x Height

Given data ,

Let the volume of the rectangular prism be represented as A

Now , the equation will be

The length of the rectangular prism L = 1 1/2 inches

The length of the rectangular prism L = 1.5 inches

The width of the rectangular prism L = 2 1/4 inches

The width of the rectangular prism L = 2.25 inches

The height of the rectangular prism L = 4 inches

So , the volume of the rectangular prism A = Length x Width x Height

Substituting the values in the equation , we get

The volume of the rectangular prism A = 1.5 x 2.25 x 4

On simplifying the equation , we get

The volume of the rectangular prism A = 13.5 inches³

Hence , the volume of rectangular prism is  13.5 inches³

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Answer:

x = -46

Step-by-step explanation:

Y= -0.5x+5

3x+5y=2 [replace the "y" in this problem with the what "y" equals above]

3x + 5( -0.5x + 5) = 2

3x + -2.5x + 25 = 2

0.5x = -23

x = -46

Answer:

-14 -8

Step-by-step explanation:

Answer

-14,-8

i did this on ttm and got it correct

Answer: £6910.7

Step-by-step explanation:

Given

Rate [tex]R=5\ \%[/tex]

Amount [tex]A=[/tex]£[tex]8000[/tex]

Time [tex]T=3\ years[/tex]

In compound interest, the Amount is given by

[tex]A=P[1+\frac{R}{100}]^T[/tex]

[tex]8000=P[1+\frac{5}{100}]^3[/tex]

[tex]P=\dfrac{8000}{1.1576}[/tex]

[tex]P=[/tex]£[tex]6910.7[/tex]

Answer:

i hope this helps

Step-by-step explanation:

Answer:

20%

Step-by-step explanation:

sorry if i am wrong

Answer: 14

Step-by-step explanation: To find the Interquartile Range (IQR) you need to subtract points Q1 from Q3. The ends of the box are the Q1 and Q3 points.

Q3 = 80

Q1 = 66

80-66= 14

Answer:

The answer is:

Quotient: 9/y

Sum: 4(3) +8

Variable is: y

Step-by-step explanation:

A quotient is the result of a division problem.

The expression 9/y represents a quotient.

A sum is the result of an addition problem.

The 4(3) + 8 represents a sum.

A variable is a letter that stands for an unknown quantity.

Y is a variable

I hope this helped you out!! :D

Answer:

Quptient: 9/y

Sum: [tex]4^{3}[/tex]+8

Variable: 7

Step-by-step explanation:

A quotient is the result of a division problem.

the expression 9/y represents a quotient

A sum of an addition problem.

The expression [tex]4^{3}[/tex]+ 8 represents a sum.

A variable is a letter that statnds for a unknown quatily

y is a variable.

The correct answers are:

Kind of expressions: Example:

Quptient: 9/y

Sum: [tex]4^{3}[/tex]+8

Variable: 7

Answer:

54x+16y

Step-by-step explanation: u have insta

Ok the answer Is 3x+8y trust me it'll save you in algebra

Answer:[tex]P\left(x\right)=x^{3}+6x^{2}+5x-12[/tex]

Step-by-step explanation:

That is what she means! I don't know what you're asking but this may help the people that want to answer this question. :)

Answer:

The slope is 6

Step-by-step explanation:

Y2-Y1 / X2-X1

-3-(-9) / -1-(-2)

6

Answer:

m = 6

Step-by-step explanation:

slope (m) = rise / run

rise = y2 - y1 = -3 - (-9) = 6

run = x2 - x1 = -1 - (-2) = 1

slope = 6/1 = 6

Answer:

Step-by-step explanation:

(13-2w)^2 = 169 - 52w + 4w^2

(w+6)^2 = w^2 + 12w + 36

Setting them equal:

169 - 52w + 4w^2 = w^2 + 12w + 36

3w^2 - 64w + 133 = 0

Using the quadratic formula, we get

x = (64 +/- sqrt(64^2 - 4*3*133))/6

64^2-12*133 = 2500. sqrt(2500) = 50.

x = (64 +/- 50)/6.

x = 19 or 14/6 = 7/3.

Solving the original equation:

7 = 3w.

w = 7/3.

Therefore 19 is extraneous.

x = 19 is the extraneous solution Li Juan obtained.

The given equation is 13 - 2w = w + 6.

We need to solve the equation by squaring both sides of the equation.

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Now,  13 - 2w = w + 6 squaring both sides of the equation.

That is, (13-2w)²= 169 - 52w + 4w²

(w+6)²= w²+ 12w + 36

Setting them equal, we get

169 - 52w + 4w² = w² + 12w + 36

⇒3w²- 64w + 133 = 0

Now, using the quadratic formula, we get

x = (64±√(64² - 4×3×133))/6

⇒x = (64±√2500)/6.

⇒x = (64±√50)/6.

⇒x = 19 or 14/6 = 7/3.

Solving the original equation, we get

7 = 3w⇒w = 7/3

Therefore, x = 19 is the extraneous solution Li Juan obtained.

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Answer:

31

Step-by-step explanation:

31 weather hgrfgrrv rtgfrh rtbffh thgg thgt

Answer:

31

Step-by-step explanation:

Answer:

45

Step-by-step explanation:

2x+5x=63

7x=63

x=9

number of boys =5×9=45

Answer:

t=91

Step-by-step explanation:

Answer:

i think its1. true2. false 3.true4. false

Step-by-step explanation:

Answer:

1. false 2. false 3. true 4. true

Step-by-step explanation:

yw

Answer:

30 questions

Step-by-step explanation:

60% or 0.60 x 50 questions = 30

Step-by-step explanation:

the answer of the question above is

a=0

b=6

c=4

Answer:

We say that a polynomial is factored completely when we can't factor it any more. Here are some suggestions that you should follow to make sure that you factor completely: Factor all common monomials first. Identify special products such as difference of squares or the square of a binomial.

Step-by-step explanation:

can you mark brainliest yes thanks you the best

Answer:

D

Step-by-step explanation:

Answer:

The measure of angle BCA = The measure of angle B prime C prime A prime

Answer:

m = -7/2

Step-by-step explanation:

If two lines are parallel, they have the same slope. The slope of r is -7/2 (y=mx+b), so the slope of r is also -7/2.

Answer:

m + g < 40

12m + 14g  > 250

Step-by-step explanation:

Given : Jordan is paid $12 per hour for mowing lawns and $14 per hour for planting gardens.

Let m represents the number of hours mowing lawns and g represents the number of hours planting gardens.

He can work a maximum of 40 hours per week, and would like to earn at least $250 this week.

Then, the system of the inequality becomes

m + g < 40

12m + 14g  > 250

Answer:

3

Step-by-step explanation:

2 + (9/ 3) ^ 2 / 9

2 + 3^2/9

2 + 3*3 / 9

2 + 9/9

2 + 1

3

Hope this helped!

Answer:

11

Step-by-step explanation:

Following the order as set out in PEMDAS ( parenthesis, exponents, multiplication, division, addition, subtraction )

evaluating parenthesis gives

2 + [tex]3^{4}[/tex] ÷ 9 ← evaluate exponent

= 2 + 81 ÷ 9 ← evaluate division

= 2 + 9 ← evaluate addition

= 11