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
Elodia [21]
2 years ago
7

HELP PLEASE AND SHOW WORK​

Mathematics
1 answer:
valina [46]2 years ago
8 0

Answer:

7 seconds, 6 seconds

Step-by-step explanation:

a) For the object to reach the ground, the height from the ground has to be 0. therefore, let the function h = 0

0 = -16t^2 + 700

the amswers are + or - 6.61

we cant have negative time so it is approximately 7 seconds.

b) for the object to reach a 100 feet, h =100

100 = -16t^2 + 700

0 = -16t^2 + 600

solve: + or - 6.12

therefore it takes approximately 6 seconds to reach 100 feet.

You might be interested in
Please can I have some help with these?
LenaWriter [7]
I hope this helps you

4 0
3 years ago
Read 2 more answers
Solve the equation b+(-2)=0
leva [86]

Answer: b=2

Step-by-step explanation:

-2+2=0

So, b would be 2 because -2 plus 2 equals zero

4 0
3 years ago
Read 2 more answers
What is the area of a circle with a radius of 6 inches? (Leave your answer in terms of Pi. This means: do not multiple by 3.14,
pickupchik [31]

Answer:

36π in^2

Step-by-step explanation:

Area of a circle = π(6)^2 = 36π

6 0
3 years ago
A car rental agency has 150 cars. The owner finds that at a price of $48 per day, he can rent all the cars. For each $2 increase
hram777 [196]
Given that for each <span>$2 increase in price, the demand is less and 4 fewer cars are rented.

Let x be the number of $2 increases in price, then the revenue from renting cars is given by
(48 + 2x) \times (150 - 4x)=7,200+108x-8x^2.

Also, given that f</span><span>or each car that is rented, there are routine maintenance costs of $5 per day, then the total cost of renting cars is given by
5(150-4x)=750-20x

Profit is given by revenue - cost.
Thus, the profit from renting cars is given by
</span><span>(7,200+108x-8x^2)-(750-20x)=6,450+128x-8x^2

For maximum profit, the differentiation of the profit function equals zero.
i.e.
</span><span>\frac{d}{dx} (6,450+128x-8x^2)=0 \\  \\ 128-16x=0 \\  \\ x= \frac{128}{16} =8

The price of renting a car is given by 48 + 2x = 48 + 2(8) = 48 + 16 = 64.

Therefore, the </span><span>rental charge will maximize profit is $64.</span>
3 0
3 years ago
How can you undo the addition of 7 on the left side of this equation? 6x + 7 = 19
BaLLatris [955]
6x - 7 = 19 
<span>6x = 19 + 7 </span>
<span>6x = 26 (divide both sides by 6 to get x) </span>
<span>6x/6 = 26/6 </span>
<span>x = 4.33333333333 </span>
8 0
4 years ago
Other questions:
  • if p(-3,6) is a point on trapezoid what is the new location of P if the shape is rotated 90 degrees clock wise
    10·1 answer
  • What is the monthly payment rate for a $20,000 loan for 4 years with an annual interest rate of 4.8%
    12·1 answer
  • Express the first amount as a percentage of the second amount:
    13·1 answer
  • A recipe for cookies requires 2/3 cup of butter.Rama wants to make 3/4 of the recipe.how many cups of butter does she need to us
    9·1 answer
  • What is the slope of the line represented by the table below?
    5·1 answer
  • A slug travels 3 centimeters in 3 minutes. A snail travels 6 centimeters in 6 minutes. Both travel at constant speeds. Mai says,
    6·1 answer
  • The price of a silk scarf is $32. The sales tax is $1.92. What is the sales tax rate?
    9·2 answers
  • Determine which lines are parallel
    5·2 answers
  • The ages of three friends are consecutively one year apart. Together, their ages total 30 years. What is the age of the youngest
    6·1 answer
  • Which fraction is greater 8/400 or 8/10 meaning more
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!