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irina1246 [14]
3 years ago
12

-9(y+12)=4(-7y-8) Solve for y

Mathematics
1 answer:
miv72 [106K]3 years ago
5 0

-9(y + 12) = 4(-7y -8)

Use the distributive property:

-9y - 108 = -28y -32

Add 32 to both sides:

-9y - 76 = -28y

Add 9y to both sides:

-76 = -19y

Divide both sides by-19

Y = 4

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Paula leaned a 10 ft ladder against a building as shown below. if Paula wants the top of the ladder to reac
amm1812

The distance between the building and the base of the ladder is 5√3 feet.

<u>Step-by-step explanation</u>:

<u>Consider a right angle triangle</u>,

  • Hypotenuse = Paula leaned a 10 ft ladder against a building.
  • Height = the top of the ladder is exactly 5 feet up in the building.
  • Base = 'x' ft, distance between the building and the base of the ladder.

<u>From the Pythagorean theorem</u>,

Base, x = \sqrt{hypotenuse^{2}-height^{2}  }

⇒ x = \sqrt{10^{2} -5^{2} }

⇒ x = \sqrt{100-25}

⇒ x = \sqrt{75}

⇒ x = 5√3

The distance between the building and the base of the ladder is 5√3 feet.

7 0
3 years ago
Find the volume of the cone.
Dovator [93]
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17.6 is the diameter so divide that by 2 to get the radius which is 8.8

(1/3)π(8.8²)(23.4) = (1/3)π(77.44)(23.4) = (1/3)π(1812.096) = (604.032)π

if you need a more specific answer and pi can equal 3.14 then it equals 1896.66048
5 0
3 years ago
How I can apply the distribute property to this question?
igor_vitrenko [27]

14 = 2•7 and 35 = 5•7, so the GCF of 14k and 35 is 7.

14k + 35 = 2•7k + 5•7 = 7 (2k + 5)

(Remember that the distributive property says a (b + c) = ab + ac.)

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2 years ago
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Answer:

i think isA

Step-by-step explanation:

8 0
2 years ago
(Number 8 answer ?) I’m having trouble with this concept.
coldgirl [10]

Answer: C

I put the working in the other question you put up, but to put it briefly, multiply everything by 6 because all the options provided have a -6 inside that was meant to be the -1

5 0
3 years ago
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