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3 years ago

Can somebody help me with this answer

Mathematics

1 answer:

Sidana [21]3 years ago

4 0

The answer is 42 I have to type more letters the this says but the answer is 42

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1. Factor completely: 2a^2 + 6a + 18

USPshnik [31]

Answer:

$2(a+3)(a+3)$

$5(x+1)(x-1)$

$3t(t-2)(t+8)$

$n(2+n)(2-n)$

Step-by-step explanation:

Factor each expression

$2a^2 + 6a + 18$

$2(a^2 + 3a + 9)$

product =9 and sum =6

3 times 3 is 9

3 plus 3 is 6

$2(a+3)(a+3)$

2. Factor completely: 5x^2 − 5

GCF is 5

$5x^2 - 5$

$5(x^2 - 1)$

$5(x+1)(x-1)$

3. Factor completely: 3t^3 + 18t^2 − 48t

$3t^3 + 18t^2 -48t$

$3t(t^2 + 6t -16)$

product is -16 and sum is 6

-2 times 8 = -16

-2+8=6

$3t(t^2 + 6t -16)$

$3t(t-2)(t+8)$

4. Factor completely: 4n − n^3

$n(4 -n^2)$

$n(2+n)(2-n)$

7 0

4 years ago

Write a word problem that can be solved by finding the numbers that have 4 as a factor

irakobra [83]

I have 2 eggs and 1 apple. What is the total?

7 0

3 years ago

Solve the triangle for all missing sides and angles

Mama L [17]

Answer:

x = 35

C = 18.92

A = 71.07

Step-by-step explanation:

Use the Pythagorean theorem to find the unknown side.

$a^{2} +b^{2} =c^{2} \\\\\\12^{2} +x^{2} =37^{2} \\x^{2} = 37^{2}-12^{2}\\x=35$

For Angle C

The angle C can be found using the inverse sine function.

C=arcsin(opp/hyp)

C=arcsin(12/37)

C=18.92

For Angle A

The sum of all the angles in a triangle is 180 degrees.

A + 90 + 18.92 = 180

A = 71.07

8 0

3 years ago

I’ll give brainliest!

DochEvi [55]

Step-by-step explanation:

Line L passes through point (0,2) and (4,0)

If you want to find the gradient of Line L, you can use this formula :

$m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{0 - 2}{4 - 0}$

$m = \frac{ - 2}{4}$

$m = - \frac{1}{2}$

8 0

2 years ago

Which equation demonstrates the distributive property?

olga2289 [7]

Answer:

Step-by-step explanation:

The distributive property takes place when you distribute what is outside of the parentheses into the parentheses, separating out the equation into easier to develop parts. D does this exactly.

8 0

3 years ago

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