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3 years ago

I NEED HELP!! 20x+36

Mathematics

2 answers:

olya-2409 [2.1K]3 years ago

7 0

I believe it is 4(5x+9)

MissTica3 years ago

6 0

The other person is correct it is 4(5x+9)

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Double somme help please

Lady_Fox [76]

Answer:

looks like a nazi symbol

Step-by-step explanation:

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2 years ago

Simplify fully x2 - 9 3x2 + 8x - 3 + X-3 x+2

bulgar [2K]

(-3x³+2x²+4x+24) (x-2)

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3 years ago

What constant term should be used to complete the square? x2 - 5x+_____ = 7

weeeeeb [17]

Answer:25/4

x2 - 5x + _____ = 7. Summary: The constant term that should be used to complete the square? x2 - 5x + _____ = 7 is 25/4.

Step-by-step explanation: hope this helps you

7 0

3 years ago

A square has a diagonal length 18 in. What is the side length of the square?

Elenna [48]

Answer:

9 $\sqrt{2}$ inches

12.728 inches

Step-by-step explanation:

Use Phytagorean Theorem

$a^{2} +b^{2} =c^{2}$

Since both all sides of a square are equal, this means that $a^{2}$ and $b^{2}$ are equal.

So that leaves us with:

$a^{2} +a^{2} = 18^{2}$

Simplify

$2a^{2} = 324$

Divide both sides by 2

$\frac{2a^{2} }{2} =\frac{324}{2}$

Simplify

$a^{2} = 162$

Find the square root of both sides

$\sqrt{a^{2} } =\sqrt{162}$

a = 9 $\sqrt{2}$

(or if you want the decimal, rounded to the 3rd decimal place: 12.728)

4 0

2 years ago

the diagram shows a right angled triangle. 9cm 15cm x degrees. Find the size of angle x. Give your answer correct to 1 decimal p

77julia77 [94]

Answer:

31°

Step-by-step explanation:

As the opposing side and adjacent side of the angle x are given, we need to take the tan ratio of the angle.

=============================================================

Solving :

⇒ tan x° = 9/15

⇒ tan x° = 3/5

⇒ x = tan⁻¹ (0.6)

⇒ x = 31°

8 0

2 years ago

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