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viva [34]
2 years ago
14

Amir stands on a balcony and throws a ball to his dog, who is at ground level.The ball's height (in meters above the ground), x

seconds after Amir threw it, is modeled by How many seconds after being thrown will the ball hit the ground?
Mathematics
1 answer:
denis23 [38]2 years ago
5 0

Answer:

6 seconds

Step-by-step explanation:

The computation of the number of second would be

In the case when the ball would hit the ground, the ball height would be zero

So the following equation would be

0 = -(x -2)^2 + 16\\\\(x -2)^2 = 16\\\\x - 2 = \sqrt{16}\\\\x -2 = 4\\\\x = 6

So the number of seconds is 6

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Ive been waiting hours for someone to answer this question. Is everyone an idiot.
stepan [7]

Answer:

D) x = -2/3 and x = 6

Step-by-step explanation:

4(x²−x+2)−(x+10)(x+2)           Distribute

(4)(x²) + (4)(−x) + (4)(2) + − x² + −12x + −20    Multiply

4x² + −4x + 8 + −x² + −12x + −20           Combine like terms            

(4x² + −x²) + (−4x + −12x) + (8 + −20)      Combine like terms

3x² −16x −12 = 0      

x = -2/3 and x = 6

I graphed the equation on the graph below.

If this answer is correct, please make me Brainliest!

7 0
2 years ago
A computer company produces an extremely light laptop and they claim it is the lightest on the market weighing only 32 ounces. t
Darina [25.2K]

Solution: We are given:

\mu=0.33,  \sigma =0.7

Let x be the weight (oz) of laptop

We have to find P(x>32)

To find the this probability, we need to find the z score value.

The z score is given below:

z=\frac{x-\mu}{\sigma}

       =\frac{32-33}{0.7}

       =-1.43

Now, we have to find P(z>-1.43)

Using the standard normal table, we have:

P(z>-1.43)=0.9236

0.9236 or 92.36% of laptops are overweight

       


4 0
2 years ago
Identify these prime numbers from the clues.
katen-ka-za [31]

Answer:

I the answer is:

a) 17

b) 37

6 0
3 years ago
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Use the similar triangles to find the slope on the lines??? Hello plzzz
ch4aika [34]

Answer:

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4 0
2 years ago
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I need help pls and thank you...
lapo4ka [179]

Answer:

AB = 32

Step-by-step explanation:

Since line l bisects AB at point M, we have AM = MB.

4x = 5x - 4

4x + 4 = 5x

x = 4

AM = 4(4) = 16, MB = 5(4) - 4 = 16.

So AB = AM + MB = 16 + 16 = 32.

7 0
1 year ago
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