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3 years ago

What is the length of a hypotenuse when the legs are 5 and 12

1 answer:

8 0

By using pythagoras theorem where
(Base)^2 +(perpedicular)^2 = (hypotenuse)^2
So,
(5)^2 +(12)^2 = (hypotenuse)^2
25 + 144 = (hypotenuse)^2
169 = (hypotenuse)^2
13 = hypotenuse

So, hypotenuse = 13

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Vinvika [58]

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2 years ago

The current in a simple electric circuit varies inversely as the resistance. If the current is 20amps when the resistance is 5 o

IrinaVladis [17]

Answer:

0.5amps

Step-by-step explanation:

I is inversely proportional to resistance

I = k/R

k = I/ R

k = 20/5

k = 4

This means that, I = 4/R

So, when R = 8ohms,

I = 4/8

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3 0

2 years ago

Write -12 7/8 as a decimal. (NEED ASAP WITH WORK)

seropon [69]

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5 0

2 years ago

Square root of 21 and square root of 62. must be given into 1 decimal place

blsea [12.9K]

Answer:

square root of 21 is 4.6

square root of 62 is 7.9

Step-by-step explanation:

square root of 21 is 4.6

square root of 62 is 7.9

8 0

3 years ago

Solve for x. <br>0.71= 1/2(9.8) x^2.

Fudgin [204]

Answer: 0.38065

in simpler terms x=± 0.145 =±0.38065

Step-by-step explanation: -490x2+71 = 0

Subtract 71 from both sides of the equation :

-490x2 = -71

Multiply both sides of the equation by (-1) : 490x2 = 71

Divide both sides of the equation by 490:

x2 = 71/490 = 0.145

When two things are equal, their square roots are equal. Taking the square root of the two sides of the equation we get:

x = ± √ 71/490

The equation has two real solutions

These solutions are x = ±√ 0.145 = ± 0.38065

5 0

2 years ago