The height of an object after it is released can be modeled by the function f(t)=-16t^2+vt+s, where t is the number of seconds after the object is released, v is the upward speed at release, and s is the starting height. If a quarterback throws a ball from his hand 6 feet in the air at a speed of 25 feet per second, how much time does his teammate have to catch the ball?about 1.45 seconds
about 1.77 seconds
about 6 seconds
about 25 seconds

Answers

Answer 1
Answer: Answer about 1.77 seconds.

f(t) = -16 t^2 + 25t + 6

f(t) = height.

hieght = 0 = -16t^2 + 25t + 6

Find t using the quadratic formula,

t = ( - 25 +/- √[25^2 - 4 (-16)(6)] ) / [2*(-16)]

t = [-25 +/- √ (625 + 384) ] / -32

t = [-25 +/- 31.76] / -32.

You will obtain two results one positive and one negative. Take the positive only as the other one has no physical meaning. t = 1.77 s.
Answer 2
Answer:

B.) about 1.77 seconds


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Pls help you would be a life saverYou can write the answer as:

1.(first second or third)
2.( first second or third)
3.(first second or third)

Answers

Step-by-step explanation:

1.(first second or third)

Write the standard form of the line with x- intercept of 3 and y-intercept of 4

Answers

it would be y=-4/3x+4

which in standard form is 4x+3y=12

HELP ASAP PLEASEEE !!!!WILL GIVE BRAINLIEST
which equation represents the general form of a circle with a center at (-2 -3) and a diameter of 8 units ?
• x²+y²+4x+6y-51=0
•x²+y²-4x-6y-51=0
•x²+y²+4x+6y-3=0
•x²+y²-4x-6y-3=0

Answers

Answer:

it’s the 3rd one:)

Step-by-step explanation:

Answer:

  • In this situation, (h, k) = (-2, -3)
  • Radius = 8/2 = 4 units

Substitute them into the circle equation: (x - h)² + (y - k)² = r²

(x - (-2))² + (y - (-3))² = 4²

(x + 2)² + (y + 3)² = 4²

Now expand the equation:

(x + 2)² + (y + 3)² = 4²

(x + 2)(x + 2) + (y + 3)(y + 3) = 16

(x² + 2x + 2x + 4) + (y² + 3y + 3y + 9) = 16

x² + 4x + 4 + y² + 6y + 9 = 16

x² + y² + 4x + 6y + 13 - 16 = 0

x² + y² + 4x + 6y - 3 = 0

Point G is the center of the small circle. Point X is thecenter of the large circle. Points G, H, and X are on line
segment GX
What would be the area of a new circle that has line
segment GX as its diameter?
160 cm?
367 cm?
Oo oo
491 cm?
98
cm

Answers

Answer: 49 pi cm^3

Step-by-step explanation: took the test

which of the expressions doe not contain any like terms?    a. 2x2+3x-4x+2     b. xy+yz-17     c. x2+x2-2x-x2   d. 4+8+y

Answers

b. does not contain any like terms, because xy, yz, and -17, do not share any common variables. 

Hope this helps!
The answer is B it does not have any of the other terms

The ratio of boys to girls in a group is 7:2. If there are 65 more boys than girls, work out how many boys there are.

Answers

Answer:

91 boys

Step-by-step explanation:

Given that the ratio of boys to girls = 7 : 2 = 7x : 2x ( x is a multiplier )

There are 65 more boys than girls , thus

7x = 2x + 65 ( subtract 2x from both sides )

5x = 65 ( divide both sides by 5 )

x = 13

There are 7 × 13 = 91 boys in the group

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