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2 years ago

12

ASAP can somebody please tell me the steps for both problems, I will also give brainliest (please list all the steps i have to s

how my work

1 answer:

bija089 [108]2 years ago

4 0

The answer to #11 is: x = 15

The answer to #12 is: x = 5

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Select the correct answer.

Svetlanka [38]

Answer:

<h3> $\boxed{ \boxed{ \bold{ {x}^{2} + 4x - 21}}}$ </h3>

Step-by-step explanation:

$\sf{(x - 3)(x + 7)}$

Use the distributive property to multiply each term of the first binomial by each term of the second binomial.

⇒ $\sf{x(x + 7) - 3(x + 7)}$

⇒ $\sf{ {x}^{2} + 7x - 3x - 21}$

Collect like terms

⇒ $\sf{ {x}^{2} + 4x - 21}$

Hope I helped!

Best regards!!

3 0

3 years ago

Read 2 more answers

How far up the house would a ladder be resting if it is 25 ft long and 3 ft

Lena [83]

Answer:

C

Step-by-step explanation:

The last one is absurd. You can't have a ladder reaching higher than itself. The question is a Pythagorean problem.

Givens

a = 3

b = ?

c = 25 feet

Formula

a^2 + b^2 = c^2

Solution

3^2 + b^2 = 25^2

9 + b^2 = 625 Subtract 9 from both sides.

b^2 = 625 - 9

b^2 = 616 Take the square root of both sides.

b = sqrt(616)

b = 24.8

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3 years ago

Is it scalene isosceles or equilateral then write acute obtuse or right thx

almond37 [142]

It's scalene because it has different sides and obtuse because root 40²+30²=50
110>50

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3 years ago

What is the volume of a cylinder with a radius of 4cm and a height of 8cm

MissTica

Answer: V=πr^2h=π·4^2·8≈402.12386cm^2

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3 years ago

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nordsb [41]

B. 50 degrees hope this helps

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3 years ago