Any of these questions will be ok

Answers

Answer 1

Answer: #7:

It means to solve for y.

#8:

We can write:

l = w + 2

Because it says the length is 2 more than the width.

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What is the slope of the graph of 8x-4y=11?
A. -2
B. 2
C. -1/2
D. 1/2

Answers

in form ax+by=c
slope=-a/b

8x-4y=11
a=8
b=-4
-8/-4=2

slope is 2
B

A pair of shoes that cost $56 last year cost $75 this year.

Answers

What’s the question? The difference 19$

The dot plot below shows how many laps each student in Coach Toni's gym class ran one day.What is the mean absolute deviation of the data set shown?
A. 30
B. 12.5
C. 5
D. 7

Answers

$\underbrace{5;5;5;5;10;10;15;15;20;35}_(10)\n\n5\cdot4+10\cdot2+15\cdot2+20+35=125\n\n(125)/(10)=12.5\leftarrow\boxed{B}$

12.5 because you add up all of the number of laps. Then you divide that from how laps there were.

So far John has run 1/4 of the way to school and walked 3/8 of the way. what fraction of the distance to school does John have left.

Answers

$(1)/(4) + (3)/(8) = (2)/(8) + (3)/(8) =(5)/(8) \n\nleft:\ \ \ 1-(5)/(8)=(3)/(8)\ \ \ of\ the\ distance\ to\ school$

the whole road is 1

1-(1/4+3/8)=
1-(2/8+3/8)=
1-5/8=
8-5/8=
3/8 have left

PLEASE HELP! A store sells small notebooks for $8 and large notebooks for $10. If a student buys 6 notebooks and spends $54, how many of each size did he buy?

Answers

let small notebook = s, large notebook = b

Set the system of equations:

54 = 8s + 10b

s + b = 6

First, solve for b. Isolate the s.

s = 6 - b

Plug in 6 - b for s

54 = 8(6 - b) + 10b

Distribute 8 to all terms within the parenthesis

54 = 48 - 8b + 10b

Simplify

54 = 48 + 2b

Isolate the b. Note the equal sign. What you do to one side, you do to the other. Subtract 48 from both sides

54 (-48) = 48 (-48) + 2b

6 = 2b

Divide

6/2 = 2b/2

b = 6/2

b = 3

----------------------------------------------------------------------------------------------------------------

Plug in b for 3 in one of the equations.

s + b = 6

s + 3 = 6

Isolate the s. Subtract 3 from both sides

s + 3 (-3) = 6 (-3)

s = 6 - 3

s = 3

------------------------------------------------------------------------------------------------------------------

small notebook = 3, large notebook = 3

------------------------------------------------------------------------------------------------------------------

hope this helps

Hi AlexBombela10,

Your Question:

A store sells small notebooks for $8 and large notebooks for $10. If a student buys 6 notebooks and spends $54, how many of each size did he buy?

Solution:

54 - 8 = 46

46 - 8 = 38

38 - 8 = 30

30 - 10 = 20

20 - 10 = 10

10 - 10 = 0

Final Answer:

He bought 3 small notebooks

He bough 3 large notebooks

Hope This Helps!

Which of the following is an odd function?

Answers

Answer:

f(x) = -x is odd

Step-by-step explanation:

A function f is odd if f(-x) = -f(x) for all x in the domain of f. Then, let's check each of the functions.

1. f(x) = x^3 + 5x^2 + x

f(-x) = (-x)^3 + 5(-x)^2 + (-x) = -x^3 + 5x^2 - x

-f(x) = -(x^3 + 5x^2 + x) = -x^3 - 5x^2 - x

Given that f(-x) ≠ -f(x). The function f is not odd.

2. f(x) = sqrt(x)

f(-x) = sqrt(-x) (Imaginary number)

-f(x) = -sqrt(x)

Given that f(-x) ≠ -f(x). The function f is not odd.

3. f(x) = x^2 + x

f(-x) = (-x)^2 -x = x^2 - x

-f(x) = -x^2 - x

Given that f(-x) ≠ -f(x). The function f is not odd.

4. f(x) = -x

f(-x) = - (-x) = x

-f(x) = -(-x) = x

Given that f(-x) = -f(x). The function f is odd.

Answer with Step-by-step explanation:

A function f is odd if:

f(-x)= -f(x) for all x in the domain of f

1. f(x)= $x^3+5x^2+x$

f(-x)= $(-x)^3+5(-x)^2-x$

= $-x^3+5x^2-x$

-f(x)= $-x^3-5x^2-x$

f(-x) ≠ -f(x)

So, function is not odd

2. f(x)=√x

f(-x)=√(-x)

= i√x

-f(x)= -√x

f(-x) ≠ -f(x)

So, function is not odd

3. f(x)= $x^2+x$

f(-x)= $(-x)^2-x$

= $x^2-x$

-f(x)= $-x^2-x$

f(-x) ≠ -f(x)

So, function is not odd

4. f(x)= -x

f(-x) = -(-x)

-f(x)=x

f(-x) = -f(x)

So, function is odd