Ask question

Ask question

All categories

3 years ago

13

A ball is thrown from an initial height of 4 feet with an initial upward velocity of 17ft/s. The ball's height h (in feet) after

t seconds is given by the following h=4+17t-16tsquare. Find all values of for which the ball's height is 8 feet

1 answer:

iVinArrow [24]3 years ago

4 0

Use quadratic formula
8= 4 +17t -16t^2
16t^2 - 17 t + 4
answers (17 + square root (33)) /32 and (17 - square root (33)) /32

You might be interested in

Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

erma4kov [3.2K]

Step-by-step explanation:

so option 1 is rightttt

5 0

2 years ago

You decide to put new carpet in your living room and family room. The combined square footage (area) of both rooms is 535 square

avanturin [10]

Answer:

The maximum square footage of the family room is 225 square feet.

Step-by-step explanation:

From statement we know the combined area and the area of the living room, the maximum area of the family room is determined by subtracting the area of the living room from the combined area. All areas are measured in square feet:

$A = 535\,ft^{2}-310\,ft^{2}$

$A = 225\,ft^{2}$

The maximum square footage of the family room is 225 square feet.

5 0

2 years ago

A circle with circumference of 10 has area of 100.<br> True or False

oksian1 [2.3K]

Circumference of a circle:
C = 2 r π
10 = 2 r π
r = 10 / 2π = 5 / π
Area of a circle:
A = r² π = ( 5 / π )² * π = 25 / π² * π = 25 / π ≠ 100
Answer: False.

8 0

2 years ago

Read 2 more answers

Determine the interquartile range for the given data 11, 13, 16, 17, 8, 10, 14, 14, 17, 14

Elanso [62]

Answer:

<em>(IQR) interquartile range: 4.5!</em>

Step-by-step explanation:

8, 10, 11, 13, 14, 14, 14, 16, 17

Median: 14

Lower quartile: 10.5

Upper quartile: 15

Interquartile range: 15 - 10.5 = 4.5

7 0

3 years ago

Select the correct answer.

Eva8 [605]

Answer:

Equation C: 5/8x + 2..5 = 3/8x + 1.5 + 1/4x

Step-by-step explanation:

Let us go through each of the equations one by one.

Equation A: $2.3y+2+3.1y=4.3y+1.6+1.1y+0.4$

This simplifies to

$5.4y+2=5.4y+2$

which has infinitely many solutions.

Equation B: $32x+25-21x=10x$

this simplifies to

$x+25=0$

$x=-25$

which is exactly one solution.

Equation C: $\frac{5}{8} x+2.5=\frac{3}{8}x+1.5+\frac{1}{4} x$

this simplifies to

$\frac{5}{8} x+2.5=\frac{5}{8} +1.5$

$2.5=1.5$

There's no way this is going to be possible; this equation has no solutions.

Equation D: $\frac{1}{3} x+\frac{1}{7} x=\frac{3}{7} x$

this gives

$\frac{1}{3} =\frac{2}{7} y$

$y=\frac{7}{6}$

which is exactly one solution.

Thus we see that it is equation C that has no solutions.

3 0

3 years ago