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
dexar [7]
3 years ago
14

A cannon ball is launched at 6 feet per second from the top of a platform 12 feet above the ground.

Mathematics
1 answer:
AleksAgata [21]3 years ago
7 0
A.) y = ut - 1/2gt^2 + 12
y = 6t - 1/2(9.8)t^2 + 12
y = 6t - 4.9t^2 + 12

b.) The y-intercept is 12

c.) The y-intercept represent the height of the ball at time t = 0

d.) At the time the ball reaches the ground, y = 0
-4.9t^2 + 6t + 12 = 0
t = 2.29 seconds
Therefore, it took the ball 2.29 seconds to reach the ground.
You might be interested in
Which statement is true?<br> A. .8&gt;.79<br> B. .4&gt;.40<br> C. .76&gt;1.2<br> D. .80&gt;.9
Hitman42 [59]
It is A. Because .8 is the same has saying .80, it is .80>.79, and 80 is greater than 79
7 0
3 years ago
Read 2 more answers
Write 0.088 as a fraction in simplest form.
zhenek [66]
11/25

88/1000
Divide each by 8
11. Times 8
125 times 8
7 0
3 years ago
A store has a 25\%25% off sale on coats. With this discount, the price of one coat is \$34.50$34.50. What is the original price
timama [110]

Answer:

$46

Step-by-step explanation:

A percent is a portion of 100. If  we receive 25% off then we pay 75% of the price. 100%-25%=75%. $34.50 is 75% of the original price. We find the new price through a proportion. A proportion is an equation where two ratios or fractions are equal. The ratios or fractions compare like quantities. For example, we will compare percent over percent to an equal ratio of $ to $.

\frac{75}{100} =\frac{34.50}{y}

I can now cross-multiply by multiplying numerator and denominator from each ratio.

75y=100(34.50)\\75y=3450

I now solve for y by dividing by 75.

\frac{75y}{75} =\frac{3450}{75} \\y= 46....

The original price was $46.


5 0
3 years ago
If f(x) = - 8x +2 then f^-1(x) =
mrs_skeptik [129]

Answer:

f^-1(x)  = -1/8x +1/4

Step-by-step explanation:

To find the inverse of a function

Exchange x and y and then solve for y

y =-8x+2

Exchange x and y

x = -8y+2

Now solve for  y

Subtract 2 from each side

x-2 = -8y+2-2

x-2 = -8y

Divide by -8

(x-2)/-8 = -8y/-8

Distribute

-1/8x +1/4 = y

f^-1(x) = -1/8x +1/4

3 0
3 years ago
2 to the power of 6/ 2 to the power of 4 x 2 to the power of 5
natka813 [3]

Answer:

2^\frac{6}{2} ^4^*^2^5.

I know it might be hard to read.

Hope this helps!

8 0
3 years ago
Read 2 more answers
Other questions:
  • 3:008 3.825 3.09 3.18 greatest to least
    9·2 answers
  • What is the next term of the geometric sequence 2,10,50
    6·2 answers
  • 1. solve for x: 2(x+2) + 3(x-1) = 3x + 7 +
    7·1 answer
  • Factor the polynomial x^8-6561
    12·1 answer
  • How do I solve a problem like -8(n+3)+28=-5n-5
    14·1 answer
  • The price of a notebook was $3.95 yesterday. Today, the price fell to $3.45. Find the percentage decrease. Round your answer to
    14·1 answer
  • Please get it right I can’t get it wrong
    13·1 answer
  • ?? math-domain and range
    11·1 answer
  • Andrea, Dina, and Lindsay invested in a partnership in the ratio of 7:9:14, respectively.
    15·1 answer
  • A 9-foot piece of ribbon costs $20.07. What is the price per yard?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!