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3 years ago

Someone please simplify these

Mathematics

1 answer:

Setler [38]3 years ago

4 0

1. 3x + 12x - 3y

15x - 3y

2. 14x + 3(y+5) - 2y

14x + 3y + 15 - 2y

14x y + 15

3. 2x² + x + 3x - 5

2x² + 4x - 5

4. 4y² + 7 - 3y² + 25

y² + 32

5. 2x(3+x) - 6x

6x + 2x² - 6x

2x²

6. y + 13 - 9

y + 4

7. 8(x-4)

8x - 32

8. 4y² + 7y + 8y²

12y² + 7y

9. 26 + x(3+4x)

26 + 3x + 4x²

4x² + 3x + 26

10. 10y + 8x + 98 - 70 + 16y

26y + 8x + 28

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The volume of a rectangular prism is given by the formula V=lwh, where I is the length of the prism, w is the width, and h is th

antoniya [11.8K]

Answer:

The answer is $6x^{3} +39x^{2}+54x$

Step-by-step explanation:

Volume of the rectangular prism = Length * Width * Height

Length (l) = $x+2$

Width (w) = $3x$

Height (h) = $2x+9$

By substituting these values to the equation above,

Volume of the rectangular prism = $(x+2)*3x*(2x+9)$

= $(3x^{2} +6x)*(2x+9)$

= $6x^{3} +27x^{2} +12x^{2} +54x$

= $6x^{3} +39x^{2}+54x$

Therefore,

The answer is $6x^{3} +39x^{2}+54x$

3 0

3 years ago

Read 2 more answers

The average number of customers per day increased 25 percent during the sale. If the average number of customers per day before

Rasek [7]

Answer:

The average number of customers per day during the sale was 150.

Step-by-step explanation:

This question can be solved using a rule of three.

Before the sale, the average number of customers per day was 120, which is 100% = 1.

Now, there are x customers, and since it is an increase of 25%, it is 100+25 = 125% = 1.25. So

120 - 1

x - 1.25

x = 1.25*120 = 150

The average number of customers per day during the sale was 150.

6 0

3 years ago

Solve the radical equation.<br> sqrt 25 – 40x = X – 10

Citrus2011 [14]

-40x=-10-20

-40x=-35

x= 7/8

5 0

2 years ago

Find the value of x and show work

Oksana_A [137]

Step-by-step explanation:

35+35+x=180 (sum of interior angles of an triangle is 180

therefore

x=180-70

x=110

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2 years ago

A pancake recipe calls for 4 cups of flour and 3 cups milk.does the recipe calling for 2 cups flour and 1.5 cup milk use the sam

kramer

Yes because if you take 4:3 it equals out to be 2:1.5

5 0

3 years ago

Someone please simplify these​

Someone please simplify these