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2 years ago

What is the value of the power a if 5a = 1/125

Mathematics

2 answers:

Mrrafil [7]2 years ago

6 0

Answer:

x = -3

There is a base f 5 on the left side, so write the denominator on the right as a base of

5 as well.

125

Move the base to the numerator.

−

If the bases are equal, the indices are equal:

−

nata0808 [166]2 years ago

4 0

Answer:

The answer is 1/625

Step-by-step explanation:

The reason is because 5a = 1/125

Therefore, to find the value of "a" we need to divide!

So, a = 1/125 / 5

⇒ 1/125 × 1/5 ( Reciprocal when we divide )

⇒ 1/125 × 5

→ 1/625

I hope this answer helps!

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Answer:

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Step-by-step explanation:

we have

$h=-16t^2+55t+4$

This is a vertical parabola open downward

The vertex represent a maximum

where

h is the height of the bird

t is the amount of time, in seconds, the bird had been in the air

For h=40 ft

substitute in the quadratic equation

$40=-16t^2+55t+4$

$-16t^2+55t+4-40=0$

$-16t^2+55t-36=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-16t^2+55t-36=0$

$a=-16\\b=55\\c=-36$

substitute in the formula

$x=\frac{-55\pm\sqrt{55^{2}-4(-16)(-36)}} {2(-16)}$

$x=\frac{-55\pm\sqrt{721}} {-32}$

$x=\frac{-55+\sqrt{721}} {-32}=0.88\ sec$

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therefore

The bird will take 0.88 seconds to reach a height of 40 feet in the air for the first time

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2 years ago

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2 years ago

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Answer:

solution,

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2 years ago

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Explanation:

Since we have given that

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Now, we know the formula, i.e.

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2 years ago

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