1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
klasskru [66]
3 years ago
9

A volleyball player sets the ball in the air, and the height of the ball after t seconds is given in feet by h= -16^2+12t+6. A t

eammate wants to wait until the ball is 8 feet in the air before she spikes it. When should the teammate spike the ball? How many reasonable solutions to this problem are there?
Mathematics
1 answer:
JulsSmile [24]3 years ago
7 0

h=-16²+12t+6

8=-256+12t+6

256-6+8=12t

-258=12t

t=-258/12

t=21.5

You might be interested in
Please help with this ! will give brainless
irakobra [83]

Answer:

x^13

2n^2x-5n^7

-6x^10-x

60s^7

6v^7

p^6

-4b^9/3

pls mark as brainliest if its right :)

7 0
2 years ago
4. Determine whether the statement is true or false. Prove the statement directly from the definition if it is true, and give a
natta225 [31]

Answer:

The statement is false.

Step-by-step explanation:

Let a and b represent two odd integers.

The average (A) is defined by:

A=\frac{a+b}{2}

In order to prove the statement, you have to show that it's true for all odd integers. But, to disprove it, you just have to find a counterexample where the statement is false.

Notice that it is easier to try to find a counterexample.

For example, a=3 and b=5

A= \frac{3+5}{2} = \frac{8}{2} = 4

The result of the average is even, therefore the statement is false.

The previous calculation is a counterexample.

3 0
3 years ago
Write an equation in point-slope form and in slope-intercept form.
Sever21 [200]

The point-slope form:

y-y_1=m(x-x_1)

The slope-intercept form:

y=mx+b

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

We have the points (1, -5) and (-3, -7). Substitute:

m=\dfrac{7-(-5)}{-3-1}=\dfrac{12}{-4}=-3\\\\y-(-7)=-3(x-(-3))\\\\\boxed{y+7=-3(x+3)}

Rewrite to the slope-intercept form:

y+7=-3(x+3)           <em>use distributive property</em>

y+7=-3x-9       <em>subtract 7 from both sides</em>

\boxed{y=-3x-16}

3 0
3 years ago
Match the expressions to their solutions or equivalents. -1/9 / (-1/3)
Zepler [3.9K]

The quotient of the given expression is 1/3

<h3>Difference and division of fractions</h3>

Fractions are written as a ratio of two integers

Given the expression below'

-1/9 / (-1/3)

Change the division to multiplication

-1/9 * -3/1

1/9 * 3/1

1/3

Hence the quotient of the given expression is 1/3

Learn more on fractions here: brainly.com/question/78672

#SPJ1

8 0
2 years ago
Classify each statement based on whether a positive or negative rational number represents it. elevation of 3,234 feet above sea
Leya [2.2K]

Answer:

elevation of 3,234 feet above sea level   Positive

losing $32.50   Negative  

depositing $230 in an account    Positive

withdrawing $2,432 from an account   Negative

2°C below 0°C  Negative

10 floors above ground level   Positive

Step-by-step explanation:

elevation of 3,234 feet above sea level   Positive   This is above ground

losing $32.50   Negative     it is less than you had

depositing $230 in an account    Positive   putting money in

withdrawing $2,432 from an account   Negative   taking money out

2°C below 0°C    less than 0

10 floors above ground level      above 0

6 0
3 years ago
Other questions:
  • What is 3x+ b= 2x+ 5 for x
    11·2 answers
  • Evaluate 4a + 7b + 3a − 2b for a = 5 and b = −3.
    12·1 answer
  • One number is six times as large as another. The sum of their reciprocal is 7. What are the numbers
    9·1 answer
  • Liquid measurements charts
    7·1 answer
  • Last Wednesday, students could choose ham or turkey sandwiches for lunch. The cafeteria made 60 sandwiches in all, 90% of which
    11·2 answers
  • How many gallons are in 1,980 milliliters? Rounded to the nearest hundredth
    14·1 answer
  • Factor completely 3x(x + 2) + 4(x + 2). (1 point) (x + 2)(7x)
    6·1 answer
  • a parallelogram has a height of 8in. and an area of the parallelogram is 120in.^2. Find the length of the base.
    10·1 answer
  • Solve the following problems 4 6\5+2 3\4
    15·2 answers
  • Number of subsets of B={p,q,r}​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!