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skad [1K]
2 years ago
6

PLS helpppppppp !! ..........

Mathematics
2 answers:
enot [183]2 years ago
7 0

Answer:

B

Step-by-step explanation:

lara31 [8.8K]2 years ago
5 0
The answer is B 78.5 is the the answer
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A store purchased a DVD for 12.00 and sold it to a costumer for 50 percent more than the purchase price. The costumer was charge
likoan [24]

Answer:

19.26

Step-by-step explanation:

price sold for= 12×150%

= 18

total cost = 18 × 107%

= 19.26

6 0
3 years ago
Could someone please help me with the surface area of this prism
Anettt [7]

Answer:

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Step-by-step explanation:

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3 years ago
The height, h, in feet of a rock above the ground is given by the equation h = -16t^2 + 24t + 16, where t is the time in seconds
boyakko [2]

The rock will hit the ground at 2 seconds.

Explanation:

Given that the height, h, in feet of a rock above the ground is given by the equation h=-16t^2+24t+16, where t is the time in seconds after the rock is thrown.

We need to determine the time at which the rock will hit the ground.

To determine the time, let us equate the height h = 0 in the equation h=-16t^2+24t+16, we get,

0=-16t^2+24t+16

Switch sides, we have,

-16 t^{2}+24 t+16=0

Let us solve the equation using the quadratic formula.

Thus, we have,

t=\frac{-24 \pm \sqrt{24^{2}-4(-16) 16}}{2(-16)}

Simplifying, we get,

t=\frac{-24 \pm \sqrt{576+1024}}{-32}

t=\frac{-24 \pm \sqrt{1600}}{-32}

t=\frac{-24 \pm 40}{-32}

Hence, the two values of t are

t=\frac{-24 + 40}{-32}   and   t=\frac{-24 -40}{-32}

Simplifying the values, we get,

t=\frac{16}{-32}  and  t=\frac{-64}{-32}

Dividing, we get,

t=-\frac{1}{2}  and  t=2

Since, t cannot negative values, we have,

t=2

Thus, the rock will hit the ground at 2 seconds.

8 0
3 years ago
1 -sin^2x÷csc^1x=sinx^2<br>​
Stella [2.4K]

Answer: 37

Step-by-step explanation:

6 0
2 years ago
Anybody who is good with word problems and (who has done these before) plz help thx!!! :DD
vovikov84 [41]

1. \frac{x}{15}  = 3

2. 8x = 216

6 0
2 years ago
Read 2 more answers
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