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3 years ago

What points are on the graph of g(x)=(1/5)^x

Mathematics

1 answer:

kykrilka [37]3 years ago

7 0

Answer:

Step-by-step explanation:

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After a baseball is hit, the height h (in feet) of the ball above the ground t seconds after it is hit can be approximated by th

lubasha [3.4K]

Answer:

The ball will take 4.05 seconds to hit the ground.

Step-by-step explanation:

we have

$h=-16t^{2}+64t+3$

This is a quadratic equation (vertical parabola) open down

The vertex is a maximum

we know that

The ball hit the ground when h=0

Solve the quadratic equation

For h=0

$-16t^{2}+64t+3=0$

The formula to solve a quadratic equation of the form

$at^{2} +bt+c=0$ is equal to

$t=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-16t^{2}+64t+3=0$

$a=-16\\b=64\\c=3$

substitute in the formula

$t=\frac{-64(+/-)\sqrt{64^{2}-4(-16)(3)}} {2(-16)}$

$t=\frac{-64(+/-)\sqrt{4,288}} {-32}$

$t=\frac{64(-)\sqrt{4,288}} {32}=-0.05\ sec$ ---> the time cannot be a negative number

$t=\frac{64(+)\sqrt{4,288}} {32}=4.05\ sec$

therefore

The ball will take 4.05 seconds to hit the ground.

4 0

3 years ago

Jami went to have a manicure that cost $25. She wanted to tip the technician 20% and

OLga [1]

Answer: $35.75

Step-by-step explanation:

1) $25 for the manicure

2) $25*(0.20) = $5 for the tip

3) $5.75 for the tip

$25 + $5 + $5.75 for the total

$35.75 total

5 0

3 years ago

What is the absolute value of -25?

NISA [10]

Answer:

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

A number is chosen at random from the positive, even integers from 2 to 50. Find the probability that the numbe

user100 [1]

Numbers divisible by 5 from 2 to 50 is 10 and numbers divisible by 8 from 2 to 50 is 6 ,therefore 6+ 10 =16 making 16/50 =8/25

8 0

3 years ago

What is the length of the red segment in the graph below?

Anon25 [30]

Answer: b 1.20

Step-by-step explanation:

b 1.20

7 0

2 years ago