7th-grade math work please answer the ones you know the answer to the person who answers more than 2 gets brainliest

well, Yasin is correct, the exterior angles are all 36° each, however "g" is including more than just that, Check the picture below.

Answer: 36 is wrong

Step-by-step explanation: 360 - 36 = 324  degrees

Answer:

1,530\(cm^{3}\)

Step-by-step explanation:

The formula to find a the volume of a rectangular prism :

Volume (V) = length x height x width

Your image has two rectangular prism put together

First rectangular prism (on the left):

Volume (V) = length x height x width

length = 10cm

width = 9cm

height = 9cm

Volume (V) = 10cm x 9cm x 9cm

Volume (V) = 810\(cm^{2}\)

Second rectangular prism (on the right):

Volume (V) = length x height x width

length = 18cm

width = 10cm

height = 4cm

Volume (V) = 18cm x 10cm x 4cm

Volume (V) = 720\(cm^{2}\)

Now to get the total of the figure.

Add both the first and second rectangular prism volume:

Volume (V) = 810\(cm^{2}\)

Volume (V) = 720\(cm^{2}\)

720 + 810 = 1530

Volume of the left cuboid

Volume of the right cuboid

Total

\(x^{3}\)Answer:

try this

Step-by-step explanation:

\(x^{3}\)*\(x^{2}\)=750-\(y\)

Answer:

a's answer = E

b's answer = C

c 's answer= D

d 's answer= A

Answer:

9m-8

Step-by-step explanation:

you need to group like terms and solve

Answer:

9m - 8

Step-by-step explanation:

We know that,

( - ) × ( - ) = ( + )

( + ) × ( + ) = ( + )

( - ) × ( + ) = ( - )

Accordingly, let us solve it now.

10m + ( – 8 ) + 9m +  ( – 10m )

Solve the brackets.

10m - 8 + 9m - 10m

Combine like terms.

9m - 8

Answer:

12x12 12x6 H = 46cm

Step-by-step explanation:

took quiz

Answer:

46 cm

Step-by-step explanation:

I learned this formula in math last year

Answer:

765

Step-by-step explanation:

Answer:

\(f^{-1}\left(f(576)\right)=\boxed{576}\)

\(f^{-1}(-7)+f(-7)=\boxed{13}\)

Step-by-step explanation:

The inverse of an invertible function with the domain of all real numbers is obtained by reflecting the original function across the line y = x, which swaps the input and output values of the function. Therefore, (x, y) → (y, x).

Given table:

\(\begin{array}{lrrrrrr}\vphantom{\dfrac12}x&-7&11&-13&6&5&-9\\\cline{1-7}\vphantom{\dfrac12}f(x)&7&12&8&-7&13&5\end{array}\)

Inverse function:

\(\begin{array}{lrrrrrr}\vphantom{\dfrac12}x&7&12&8&-7&13&5\\\cline{1-7}\vphantom{\dfrac12}f^{-1}(x)&-7&11&-13&6&5&-9\end{array}\)

If we have a function f(x), the inverse function is denoted as f⁻¹(x), and it has the property that f⁻¹(f(x)) = x for all valid inputs x in the domain of f(x).

Therefore:

\(\large\boxed{f^{-1}\left(f(576)\right)=576}\)

The value of f(-7) is the value of f(x) when x = -7. Therefore, reading from the original table, f(-7) = 7.

The value of f⁻¹(-7) is the value of f⁻¹(x) when x = -7. Therefore, reading from the inverse function table, f⁻¹(-7) = 6.

Therefore:

\(\large\boxed{\begin{aligned}f^{-1}(-7)+f(-7)&=6+7\\&=13\end{aligned}}\)

Answer: 1. a. 15     b. 11     c. 2     d. 7     e. 5.5

2.  Stem:                   Leaf:

        1                           9

        2                         5, 9

        3                        3, 3, 8

        4                        0, 7, 9

        5                          4, 5

        6                           1, 5

        7                           2, 7

        8                             1

3. a. 13 inches        b. I'm pretty sure that it is the second quarter because there is more snow.           c. The first quarter because it's section is more spread out among the numbers.

Step-by-step explanation:

Answer:

Step-by-step explanation:

y=-1/5x+2

make a list of at least 2 points:

if x=0 y=-1.5*0+2=2

if x=2 y=-1.5*2+2=-1

(0,2) and (2,-1)

7.

take three points:

(3,0), (0,-3), (4,1)

Try to find a pattern.

3-3=0

0-3=-3

4-3=0

x-3=y

So the answer is x-3=y or y=x-3.

Answer:

6) I attached the graph as an image, or you could just use Desmos for better detail

7) y = x - 3

Step-by-step explanation:

7) Take two points and do the change in y / change in x

So if you take points (6,3) and (3,0), the change in y is 3 and change in x is 3, giving 1 as the gradient.

Next, find the y intercept which is where the line meets the y axis, so -3.

Answer would come out as y = x - 3

Answer:

That is, it does not vary given circles of differing size. This claim is equivalent to saying "all circles are proportional" or "all circles are similar."

Answer:

Step-by-step explanation:

you add

Answer:

r = 1

Step-by-step explanation:

The equation is,

→ 6r - 1 + 6r = 11

Now the value of r will be,

→ 6r - 1 + 6r = 11

→ 12r = 11 + 1

→ r = 12/12

→ [ r = 1 ]

Hence, the value of r is 1.

Answer:

The answer is 1 r is equal to 1

Step-by-step explanation:

Answer:

A/m=-2. since x goes up by 2 on the table, y decreases by 4 on the table, but if the next part of x on the table was 6, then y would be -2.

Here are the pairs matched with their products:

- (-5)(4.2) matches with -21

- (-7)(-3) matches with 21

- (2.5)(-9) matches with -22.5

Pairs (4) and (5) do not have corresponding products in the given options.

Answer:

39.845

Step-by-step explanation:

this question it is asking how much money she has at the beginning, so to solve this we need to add up the money she spent before and add the money she has left.

1. we are ready to know she already spends 15.88 at the beginning and then she spent half as much as 15.88 so, we have to divide 15.88 by 2.

15.88/2= 7.94

2. now everything is figured out, next, add them together.

15.88+7.94+3.385= 39.845

The answer is perfectly accurate

Answer:

A, C

Step-by-step explanation:

70% * 42

= 10% * 42 *7

= 1% *42 * 70

Answer:

A and C

Step-by-step explanation:

10*7=70

1*70=70

But the rest are smaller or bigger than 70

Answer:

a

Step-by-step explanation:

it is a straight line coming out of the origin

Answer:

To find the correct selling price, we need to first find the cost of the item plus the markup. We can do this by multiplying the cost of the item by the markup percentage: $6 * 67% = $4.02. However, since the question asks us to round to the nearest dollar, we can round this number down to $4.

Therefore, the correct selling price is $4.

The manager's likely error was that they set the selling price at the cost (option C).

Step-by-step explanation:

The correct selling price is $10 and the manager set the selling price at the markup so option (A) is correct.

The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.

The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.

As per the given,

Cost of item = $6

Markup = 67%

67% of $6 ⇒ 0.67 x 6 = $4.02

Add the markup in the cost = $6 + $4.02 = $10.02

Round to nearest dollars = $10.2 ≈ $10.

The manager put $4 which is a markup instant of the selling price of $10.

Hence "The correct selling price is $10 and the manager set the selling price at the markup".

For more about the percentage,

brainly.com/question/13450942

#SPJ2

Answer:

18. x = 3

Step-by-step explanation:

4(5x-7) = 10x + 2

4× 5x =20x

4×-7= -28

20x-28=10x+2

Subtract 10x from both sides

10x -28 =2

Add 28 to both sides

10x = 30

Divide by 10

x = 3

Answer: i added it below

Step-by-step explanation: i showed u how to do the first one and i did a bit of the second one i hope u understand it. pls give me brainliest,

Answer: The first one is y=20x + 40;280

The second one is y=n+6

Step-by-step explanation:

The first one is y=20x+40 this is because when x is replaced with any number 20 will get multiplied by that number for example.

y=20x+40

If we assume that x is 4:

y=20(4)+40

y=80+40

y=120

our answer is 120.

I hope this helped.

Assign the numbers to the number line in the following order:

2.15=2.15

220%=2.2

9/4=2.25

*2.15* is easy enough to place as it is already in decimal form. However, the other 2 options need to be converted to decimals in order to be placed. We have the fraction 9/4 and percentage 220%. 9/4 can either be simply divided on a calculator or turned into the mixed fraction 2 and 1/4, which is *2.25*. Finally, we know that converting a decimal to a percentage we multiply the decimal by 100. Therefore, to convert a percentage to a decimal we divide 100 or move the decimal to the left 2 places. With this conversion rule, 220% transforms to *2.2* and we have the third and final number for our number line. Arranging these three numbers from least to greatest:

2.15, 2.2, 2.25

Answer:

Answer is B. Hope this helped :)

Step-by-step explanation:

Answer:

the answer is B!