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2 years ago

Select all that apply, 7th grade math

Mathematics

2 answers:

lana [24]2 years ago

7 0

All except 0. The inequality is saying that x must be less than or equal to 3 which all answers except 0 are.

Lorico [155]2 years ago

7 0

Hi!

Your answer to this question would be every option except for 0.

This is because the question is saying: x is less than or equal to negative 3.

Thus, you answer, all options except 0

Have a wonderful/night!

God bless!

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The bricks are built to form a garden. The perimeter of the outer square is 264 centimeters. The area of the inner square is 900

zhenek [66]

Answer:

Length: 124.7875 cm

Width: 7.2125 cm

Step-by-step explanation:

The perimeter of this area can be calculated as:

P = 2L + 2W

Where P is the perimeter, L is the length and W is the width

If the perimeter is 264 centimeters, we have that:

2L + 2W = 264

L + W = 132

The area can be calculated as:

A = L*W

Where A is the area.

If the area is 900 cm2, we have that:

L*W = 900

From the first equation, we have that L = 132 - W

Using this value in the area equation, we have:

(132-W)*W = 900

132W - W2 = 900

W2 - 132W + 900 = 0

delta = b2 - 4ac = 17424 - 3600 = 13824

sqrt(delta) = 117.575

W1 = (132 + 117.575) / 2 = 124.7875 cm

W2 = (132 - 117.575) / 2 = 7.2125 cm

Using the smaller value for W, the length will be:

L + 7.2125 = 132

L = 124.7875 cm

4 0

3 years ago

Read 2 more answers

one rectangle has a length 10 cm and width 5 cm the second rectangle has length 12 cm and width 4 cm are the two rectangles simi

tatuchka [14]

Answer:

No, they aren't similar.

Step-by-step explanation:

Let's take the proportionality of their sides to check whether they are similar or not:

$\frac{10}{5} = \frac{12}{4}$

=> 2 ≠ 3

So, they are not similar.

8 0

4 years ago

3(4h+2k)3, left parenthesis, 4, h, plus, 2, k, right parenthesis ?

Ann [662]

Note: You seem to have missed entering the complete question. I am assuming you want to get the simplified version of the stated expression. So, I will solve it accordingly.

Answer:

The simplification of the expression is:

$3\left(4h+2k\right)\cdot \:3=\:36h+18k$

Step-by-step explanation:

Given the expression

$3\left(4h+2k\right)3$

simplifying the expression

$3\left(4h+2k\right)3$

$=3\left(4h+2k\right)\cdot \:3$

$=3\cdot \:3\left(4h+2k\right)$

$\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b+c\right)=ab+ac$

$=3\cdot \:3\cdot \:4h+3\cdot \:3\cdot \:2k$

$\mathrm{Multiply\:the\:numbers:}\:3\cdot \:3\cdot \:4=36$

$=36h+3\cdot \:3\cdot \:2k$

$\mathrm{Multiply\:the\:numbers:}\:3\cdot \:3\cdot \:2=18$

$=36h+18k$

Therefore, the simplification of the expression is:

$3\left(4h+2k\right)\cdot \:3=\:36h+18k$

3 0

3 years ago

Isabel tried to evaluate an expression step by step.

lianna [129]

Answer:

Step 3

Step-by-step explanation:

(2+8)+8
2+(8+8)
2+0 mistake, 8 + 8 ≠ 0, should be 16 instead of zero
2

8 0

3 years ago

Read 2 more answers

A scale drawing of a building needs to be made using the scale 1 inequals=270270 ft. How tall will the building in the scale dra

nadezda [96]

Answer:

and i oop

Step-by-step explanation:

4 0

3 years ago