3 years ago

I need to know if the answer to number 9. Is correct

1 answer:

8 0

The answer to number 9 would be 43.

Since it tells you that there is a straight angle that would equal 180. So I added up 61 30 and 46. I got 137. Then subtracted 137 from 180 and got 43.

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I need help with this question.This is due in like 7 mins :(

Stells [14]

Answer:

the answer is the last option! 68/5 - 22/5 = 9 and 1/5

Step-by-step explanation:

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2 years ago

The shorter leg of a right triangle is 7cm shorter than the longer leg. The hypotenuse is 7cm longer then the linger leg. What i

Gelneren [198K]

The shorter leg is 21cm, longer leg is 28 cm and hypotenuse is 35cm.

Step-by-step explanation:

Let,

The longer leg = x

The shorter leg = x-7

Hypotenuse = x+7

Using Pythagoras theorem;

$a^2+b^2=c^2\\(x-7)^2+(x)^2=(x+7)^2\\x^2-14x+49+x^2=x^2+14x+49\\2x^2-14x+49-x^2-14x-49=0\\x^2-28x=0\\x(x-28)=0\\$

Either,

x= 0

Or,

x-28=0 =>x=28

As length cannot be zero, therefore,

Longer side = 28cm

Shorter side = x-7 = 28-7 = 21cm

Hypotenuse = x+7 = 28+7 = 35cm

The shorter leg is 21cm, longer leg is 28 cm and hypotenuse is 35cm.

Keywords: triangle, pythagoras theorem

Learn more about triangles at:

#LearnwithBrainly

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3 years ago

Divide 3 into 39.39 round to the nearest tenth if possible

serious [3.7K]

First u divide 39.39 to 3 and u get 13.13 so it is already rounded u dont need to round<span />

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3 years ago

Please help! 8 and 9/20, will give brainliest. I do not tolerate spam answers! Offering triple points if you answered both!

horsena [70]

Answer:

hi, quick tip

go to cymath or just screenshot the equations or put it in, and it will automatically solve it for you instead of having to wait for someone to answer.

hope this works :}

Step-by-step explanation:

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Last year 64 new houses were built in the neighborhood so far this year 5/8 of them have been sold. How many new houses have bee

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5/8 of the total has been sold, so we just do 64*5/8=40 houses that had been sold this year. Hope this helped!

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3 years ago