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2 years ago

Pls help will mark as brainliest

Mathematics

1 answer:

Alchen [17]2 years ago

3 0

It is Consistent sorry if wrong

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a toy rocket is launched from the top of a 48 foot hill. The rockets initial upward velocity is 32 feet per second and its heigh

sdas [7]

Answer:

t = 2.11 seconds

Step-by-step explanation:

A toy rocket is launched from the top of a 48 foot hill. The rockets initial upward velocity is 32 feet per second and its height h at any given second t is modeled by the equation:

$h=-16t^2+32t+48$

Let us assume that we need to find the time by it to reach the ground. It means h = 0

$-16t^2+32t+48=0$

The above is a quadratic equation. The value of t is given by :

$t=\dfrac{-b\pm \sqrt{b^2-2ac} }{2a}\\\\t=\dfrac{-b+ \sqrt{b^2-2ac} }{2a},\dfrac{-b- \sqrt{b^2-2ac} }{2a}\\\\t=\dfrac{-32+ \sqrt{(32)^2-2\times (-16)(8)} }{2\times (-16)},\dfrac{-32-\sqrt{(32)^{2}-2\times(-16)(8)}}{2\times(-16)}\\\\t=-0.11\ s, 2.11\ s$

So, it will take 2.11 seconds to reach the ground.

6 0

2 years ago

Jenny’s home appraised for 550,000. Her asking price was 560,000 and the properties sold for 575,000. What were the new owners p

Alisiya [41]

Answer:

575,000

Step-by-step explanation:

5 0

2 years ago

On Saturday Keisha rand 2.536 km on Sunday she ran 1.55 km how much for the did she run on Saturday then on Sunday

Butoxors [25]

Answer:

4.086 or rounded to 4.1

Step-by-step explanation

Since we need to combine the amounts he ran on each day we need to add. We need to add normally and then add the decimal after the number 4. make sure to add km at the end to label your answer.

4 0

1 year ago

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The store sells 24 candy bars for $12.

RideAnS [48]

Answer: 24/12 12/6 2/1

Step-by-step explanation:

Just divide by the nearest number (123456789)

8 0

2 years ago

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What is the answer to the equation 5+2(x-1)=12

S_A_V [24]

$5+2(x-1)=12 \\ \\ 2 ( x - 1) = 12 - 5 \ / \ subtract \ 5 \ from \ each \ side \\ \\ 2(x - 1) = 7 \ / \ simplify \\ \\ x - 1 = \frac{7}{2} \ / \ divide \ each \ side \ by \ 2 \\ \\ x = \frac{7}{2} + 1 \ / \ add \ 1 \ to \ each \ side \\ \\ x = \frac{9}{2} \ / \ simplify \\ \\$

So, the answer to this problem is x = 9/2 or x = 4.5.

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2 years ago

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