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Svet_ta [14]
3 years ago
10

PLEASE HELP ME!!! Fist person to answer gets brainly

Mathematics
2 answers:
Cerrena [4.2K]3 years ago
5 0
1st Image:-

Answer:

a) No
b) No
c) Yes
d) No

Step-by-Step Explanation:

We can use the Pythagoras Theorem to check whether it is a right triangle.

Hypotenuse^2 = 1st Side^2 + 2nd Side^2

a) 7, 12, 14

Therefore,
=> 14^2 = 7^2 + 12^2
=> 196 = 193
RHS is not equal to LHS.

Therefore, its not a Right Triangle.

b) 6, 14, 19

Therefore,
=> 19^2 = 6^2 + 14^2
=> 361 = 232
RHS is not equal to LHS.

Therefore, its not a Right Triangle.

c) 12, 35, 37

Therefore,
=> 37^2 = 12^2 + 35^2
=> 1369 = 1369
RHS is equal to LHS.

Therefore, it is a Right Triangle.

d) 4, 8, 9

Therefore,
=> 9^2 = 4^2 + 8^2
=> 81 = 80
RHS is not equal to LHS.

Therefore, its not a Right Triangle.

2nd Image:-

Answer: 352 ft^3

Step-by-Step Explanation:

r = 4 ft
h = 7 ft

Volume = πr^2h

Therefore,
= πr^2h
= π * r^2 * h
= 3.14 * 4^2 * 7
= 3.14 * 16 * 7
= 351.68

Volume = 351.68 ft^3
Rounded off = 352 ft^3

If you appreciate the effort that I put into making this answer, please mark it as Brainliest. Thank you.
zzz [600]3 years ago
3 0

Step-by-step explanation:

I only know the answer for the second task

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Well since we know that for one day Mrs. Fernandez drives 6 and 1/9 miles to work what could we do to get 12 days of work driven.
all we have to do here is multiply 12 and 6 and 1/9 :) lets set this up
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now lets just multiply across

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-----   x  ----- 
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</span>
so now our fraction look like this 
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-------
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but lets make it not look so confusing and divide 660 by 9
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again it still looks confusing but we can round it out to beeeee
73
so this means that for 12 days Mrs. Fernandez drove 73 miles!
hope this isnt confusing;)
have a good one and mark me brainliest!

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