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Tcecarenko [31]
3 years ago
9

The CHS Baseball team was on the field and the batter popped the ball up. The equation (b)t = 80t+-16 Squared +3.5 Represents th

e height of the ball above the ground in feet as a function of time in seconds. How long will the catcher have to get in to position to catch the ball before it hits the ground? Round to the nearest Second.
Mathematics
1 answer:
Darina [25.2K]3 years ago
6 0

Answer:

7645674

Step-by-step explanation:

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I need help with this. I don't understand
nydimaria [60]
2) x+y
3)h-13
4)3.5-k
5)g+h-11
6)5-y+g
7)5-y+g

8 0
3 years ago
What’s four plus four
strojnjashka [21]

Answer: 8

Step-by-step explanation: four plus four equals eight

4 0
3 years ago
Read 2 more answers
Trina has two brothers. one brother is 7 years older than trina and the other brother is 7 years younger than trina. the product
AlladinOne [14]
(a) 95 = (x+7)*(x-7)

(b) 95 = (x+7)*(x-7) 
Expand the brackets:
95 = x² -7x + 7x -49 = x² - 49
Subtract x² from both sides:
95-x² = -49
Subtract 95 from both sides:
-x²=-49-95 
-x²= -144
Divide both sides by -1 to get rid of the negative numbers:
-x²/-1=-144/-1
x²=144
Take the square root of 144:
x = ± squareroot of 144
x = 12 or -12
x = 12 because you cannot have a negative age so Trina is 12 years old.
     
7 0
3 years ago
Type the correct answer in each box. (____)
trapecia [35]

Answer:

1. -16; 2. +64; 3. 16

Step-by-step explanation:

The formula for the volume of a cylinder is

V = πr²x

Data:

r = (x - 8)   mm

V = 1024π mm³

Calculations:

1. Find the cubic equation  

V = πr²h

1024π = π(x - 8)² × x

Divide each side by π

1024 = x(x - 8)²  

1024 = x(x² - 16x  + 64)

1024 =    x³ - 16x² + 64x

x³ - 16x² + 64x - 1024 = 0

2. Solve the cubic equation

The general formula for a third-degree polynomial is

f(x) = ax³ + bx² + cx + d

Your polynomial is  

f(x) = x³ - 16x² + 64x - 1024

a = 1; d = -1024

According to the <em>rational roots theorem</em>, the possible roots are

factors of d/factors of a

Factors of d = ±1, ±2, ±4, ±8, ±16, ± 32, ± 64, ±128, ±256, ±512, ±1024

Factors of a = ±1

Potential roots are x = ±1, ±2, ±4, ±8, ±16, ± 32, ± 64, ±128, ±256, ±512, ±1024

That's a lot of possibilities to check by trial and error. I will just use the one that works.

Try x = 16 by synthetic division.

16|1  -16   64  -1024

  <u>|     16     0   1024 </u>

   1     0   64        0

So,

(x³ - 16x² + 64x - 1024)/(x – 16) = x² + 64

and

(x - 16)(x² + 64) = 0

x - 16 = 0        x² + 64 =    0

     x = 16       x²         = -64

                       x          =  ±8i

There is only one real root: x = 16 mm

6 0
3 years ago
Simplify the expression.<br><br> (−2g5h2)5
vampirchik [111]
I am sure you are trying to type

( - 2 {g}^{5} {h}^{2} {)}^{5}
If that is it, then you should recall the law of exponents which says,

({a}^{m} {)}^{n} = {a}^{mn}
Let us share the exponent for each of them.

( - 2 {g}^{5} {h}^{2} {)}^{5} = ( { - 2)}^{5} ( { {g}^{5}) }^{5} ( { {h}^{2}) }^{5}
We now apply the law,

( - 2 {g}^{5} {h}^{2} {)}^{5} = ( { - 2)}^{5} ( { {g}^{5 \: \times 5}) }^{} ( { {h}^{2 \times 5}) }^{}
We now simplify to obtain,

( - 2 {g}^{5} {h}^{2} {)}^{5} = -32 {g}^{25} {h}^{10}

If that is not the expression let me know so I will know how to help you
4 0
3 years ago
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