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diamong [38]
3 years ago
7

A rocket is launched with an initial velocity of 360 ft/s. The height of the rocket in meters is modeled by the function shown b

elow, where t is time in seconds. h(t)=‒10t2 + 360t Which statement is true?
A. The rockets maximum height is 324 feet.
B. The rockets maximum height is 3240 feet.
C. In the interval from 9 seconds to 18 seconds, the rocket is descending.
D. The rocket hits the ground in 18 seconds.
Mathematics
1 answer:
lara31 [8.8K]3 years ago
4 0
The answer for this question is d 
hope it helps
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Shirley has a circular rug in her dining room that has an area of 36 pie Square meters what is the radius of the circular rug
ValentinkaMS [17]

Answer: The radius of the circular rug is  6 meters.

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:

<em>Area of a circle (A) = pi r² </em>

Where r is the radius:

Replacing with the values given:

36 pi=pi r²

Dividing both sides by pi:

36 = r²

√36= r

r = 6 meters

So, the radius of the circular rug is  6 meters.

Feel free to ask for more if needed or if you did not understand something.

8 0
3 years ago
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URGENT: Martha is 1 of 5 girls in a backstroke finals of the swim meet. Only the top 2 finishers of the race will receive ribbon
Dima020 [189]

Answer:

50%

Step-by-step explanation:

3 0
3 years ago
Calculate the area of the irregular polygon shown below:
MAXImum [283]
That's the diagram..
(12×3) + 3(0.67×7) = 50.07inches²
≈ 50inches²

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5 0
3 years ago
What percent of 19 is 4.75?
IrinaK [193]

Answer:

25%

Step-by-step explanation:

1. 4.75/19 = .25

2. .25 = 25%

8 0
3 years ago
What are the x intercepts of the quadratic function? Y=-x^2+2x-1
saw5 [17]

Answer:

x = 1

Step-by-step explanation:

Given in the question the equation

y = -x² + 2x - 1

To find the x-intercept, substitute in 0 for y

0 = -x² + 2x - 1

To find value of x use quadratic equation

x = -b ± √b²-4ac / 2a

  here a = -1

           b = 2

           c = -1

x1 = -2 + √2²-4(-1)(-1) / 2(-1)

   = -2 + 0 / -2

   = -2 / -2

   = 1

x2 = -2 - √2²-4(-1)(-1) / 2(-1)

   = -2 - 0 / -2

   = -2 / -2

   = 1

8 0
3 years ago
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