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4 years ago

I need help with this it’s geometry Pythagorean theorem

Mathematics

2 answers:

myrzilka [38]4 years ago

7 0

Answer:

Step-by-step explanation:

Since the triangle is right use Pythagoras' theorem to solve for BC

The square on the hypotenuse (BC) is equal to the sum of the squares on the other 2 sides, that is

BC² = 80² + 18² = 6400 + 324 = 6724 ( take the square root of both sides )

BC = $\sqrt{6724}$ = 82 → E

Trava [24]4 years ago

3 0

Answer:

E)82

Step-by-step explanation:

The formula is

A^2 + B^2= C^2

the two sides that make up the right angle is always A and B

You might be interested in

Write the percent as a fraction 77.5%

zysi [14]

77.5%

Change to decimal:-

77.5 ÷ 100 = 0.775

775/1000

31/40

77.5% = 31/40

6 0

3 years ago

Before Christmas, the price of a shoe in a Heel's Store for Women was $79. At the post-Christmas sale, the price was $43. By wha

BartSMP [9]

Answer:

54.4%

Step-by-step explanation:

Find this by dividing 43 and 79:

$\frac{43}{79}= 0.5443$

Multiply this by 100 to convert to a percent (or just move the decimal to the left two spaces):

$0.5443*100=54.43$

Round to the nearest tenth (one decimal place):

$54.43=54.4$

The price was reduced by about 54.4%

:Done

8 0

3 years ago

Mr mistry has 3 grandchildren. He gives Nimisha £m. He gives Sunhil £80 less than Nimisha. He gives Akshay twice as much as Sunh

slamgirl [31]

Here are the variables.

M= nimisha money

S= Sunhil money

A= Akshay money

The expression is S= M-80
A= S*2
M=S+80

Hope this helped

7 0

3 years ago

Read 2 more answers

If sin theta = 1/3, theta in quadrant 2, find the exact value of

alexandr1967 [171]

So hmm checking the picture below

you can pretty much just use the pythagorean theorem to get the missing adjacent side

once you have that, you just get the cosine since the cosine is just adjacent/hypotenuse

as far as the sum with θ, those angles would be in your Unit Circle surely
and just expand the sum identity with those values