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3 years ago

What is the right answer

Mathematics

1 answer:

RoseWind [281]3 years ago

4 0

The 3rd one is right

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Determine whether the given lengths can be sides of a right triangle. Which of the following are true statements? The lengths 14

devlian [24]

Answer:

The lengths 14, 24, and 26 cannot be the sides of a right triangle. The lengths 30, 72, 78 can be the sides of a right triangle.

Step-by-step explanation:

To prove that the lengths 14, 24, and 26 cannot be the sides of a right triangle:

a=14, b=24, c=26

Pythagoreon theorem: a^2+b^2=c^2

substitute values in: 14^2+24^2=26^2

simplify: 196+576=676

simplify again: 772=676, which is not true

This proves that the lengths 14, 24, and 26 cannot be the sides of a right triangle.

To prove that the lengths 30, 72, and 78 can be the sides of a right triangle:

a=30, b=72, c=78

Pythagoreon theorem: a^2+b^2=c^2

substitute values in: 30^2+72^2=78^2

simplify: 900+5184=6084

simplify again: 6084=6084, which is true

This proves that the lengths 30, 72, and 78 can be the sides of a right triangle.

5 0

3 years ago

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Equação do primeiro grau.<br> -10 + x = -8

saul85 [17]

Answer:

Step-by-step explanation:

5 0

3 years ago

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Five the equation of line that is perpendicular to f(x)=-2x+1 that goes through point (0,5)

Alinara [238K]

Answer:

y = $\frac{1}{2}$ x + 5

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

f(x) = - 2x + 1 ← is in slope- intercept form

with slope m = - 2

Given a line with slope m then the slope of a line perpendicular to it is

$m_{perpendicular}$ = - $\frac{1}{m}$ = - $\frac{1}{-2}$ = $\frac{1}{2}$ , then

y = $\frac{1}{2}$ x + c

the line crosses the y- axis at (0, 5 ) ⇒ c = 5

y = $\frac{1}{2}$ x + 5 ← equation of perpendicular line

7 0

2 years ago

What's the answer I need it asap

ruslelena [56]

Answer:B

Step-by-step explanation:

I got it right

6 0

4 years ago

Enny had some candy to give to her three children. She first took nine pieces for herself and then evenly divided the rest among

andreev551 [17]

Answer:

Step-by-step explanation:

if she took nine and her THREE children took three each, that means 3+3+3=9 and 9+9=18

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2 years ago

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