3 years ago

Please help me fast

Mathematics

1 answer:

salantis [7]3 years ago

4 0

Answer:

A rrrrriiiiiiiiiiiigggggggggghhhhhhhhhttttttttttt

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How many fourths are in 7/8

Nutka1998 [239]

$\dfrac{7}{8} \div \dfrac{1}{4}=\dfrac{7}{8}\cdot4=\dfrac{7}{2}=3.5$

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3 years ago

The equation 3/4 [x-1]=[-3] is equivalent to?

olga nikolaevna [1]

Answer: x= (-3)

Step-by-step explanation:

3/4 [x-1] = [-3]

(x-1) = (-3) × 4/3

X-1 = -4

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3 years ago

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3 years ago

Distance between (-5,-6) and (5,6)

DENIUS [597]

Answer:

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Step-by-step explanation:

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3 years ago

Given a right triangle with legs a, b and hypotenuse c, solve for b if a= 72 and c= 75

kotykmax [81]

Answer:

The answer is a. 21.

Step-by-step explanation:

We solve this question by using Pythagoras theorem to relate the sides of a right angled triangle.

Here,

Hypotenuse of the given triangle(c)=75

Two sides of right angled triangle are:

a=72

b=?

Then,

for a given right angled triangle abc,

Using Pythagoras theorem,

$c=\sqrt{a^{2} +b^{2} }$

Squaring on both sides,

$c^{2} =a^{2}+b^{2}$

or, $75^{2}=72^{2}+b^{2}$

or, $b^{2}=75^{2}-72^{2}$

or, $b^{2}=5625- 5184$

or, $b^{2} =441$

∴ $b=21$

So, the value of b is obtained to 21 by the use of Pythagoras theorem.

7 0

3 years ago