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
krek1111 [17]
3 years ago
6

An evil supervillian has launched a drone from his/her submarine. The drone's height, in meters above sea level, as a function o

f time, t , in seconds, is given by h ( t ) = − 4.9t^2 + 133t + 152
What is the maximum height? Round your answer to three decimal places.
Mathematics
1 answer:
adelina 88 [10]3 years ago
7 0

Answer:

the maximum height is 1054.500 meters

Step-by-step explanation:

h ( t ) = − 4.9t^2 + 133t + 152

a= -4.9 , b= 133  and c= 152

To find maximum height , we find vertex

x= \frac{-b}{2a}=\frac{-133}{2(-4.9)}= 13.5714

Now plug in 13.5714 for 't' in h(t)

h(t) =-4.9t^2 + 133t + 152

h(t)=-4.9( 13.5714)^2 + 133( 13.5714)+ 152=1054.500

the maximum height = 1054.500 meters

You might be interested in
Brian can lay a slab of concrete in 6 hours, while Greg can do it in 4 hours. If Brian and Greg work together, how long will it
anastassius [24]

Answer:

2 2/5 hours

Step-by-step explanation:

In 6 hours Brian can lay 1 slab of concrete

dividing both side by 6

in 6/6 hours Brian can lay 1/6 slab of concrete

Thus, in 1 hour  Brian can lay 1/6 slab of concrete

In 4 hours Greg can lay 1 slab of concrete

dividing both side by 4

in 4/4 hours Greg can lay 1/4 slab of concrete

Thus, in 1 hour  Greg can lay 1/4 slab of concrete

Thus, total part of slab laid by both in 1 hour when they work together

1/6 + 1/4 = 4+6/(6*4) = 10/24 = 5/12

5/12 of slab of concrete is laid by both of them in 1 hour

time taken to lay 5/12 of slab = 1 hour

dividing both side by 5/12

time taken to  5/12/ 5/12 of slab = 1/5/12 hour = 12/5 hours

time taken to 1/1 of slab = 12/5 hours = 2 2/5 hours

Thus,

it takes 2 2/5 hours to lay the full slab of concrete when Brian and Greg work together,

5 0
3 years ago
Zane spent $1.50 more than Taylor
Virty [35]
How much does Taylor has?
8 0
3 years ago
Isaac downloaded 7 ringtones. Each polyphonic ringtone costs $3.25, and each standard ringtone costs $1.50. If he spends a total
anzhelika [568]

Answer:

6\ polyphonic\ ringtones  and 1\ standard\ ringtone

Step-by-step explanation:

Let

x -----> the number of polyphonic ringtones

y ----> the number of standard ringtones

we know that

x+y=7

x=7-y -----> equation A

3.25x+1.50y=21 -----> equation B

Solve the system of equations by substitution

Substitute equation A in equation B and solve for y

3.25(7-y)+1.50y=21

22.75-3.25y+1.50y=21

3.25y-1.50y=22.75-21

1.75y=1.75

y=1\ standard\ ringtones

Find the value of x

x=7-1=6\ polyphonic\ ringtones

6 0
3 years ago
Read 2 more answers
What is 80\%, percent of 25
natulia [17]

Answer:

20

Step-by-step explanation:

Convert 80% into a decimal and multiply by 25

Convert 80% into a decimal form: 0.8

Multiply 0.8 by 25 = 0.8 x 25

Simplify 0.8 x 25

=20

Sorry if this answer is incorrect!

7 0
3 years ago
Find the 12th term of following geometric sequence 5, 20,80, 320,
vesna_86 [32]
5, 20, 80, 320, 1280, 5120, 20480, 81920, 327680, 1310720, 5242880, 20971520

The 12th term would be 20,971,520
Everything is being multiplied by 4 each time
5 0
3 years ago
Other questions:
  • Select the equation of the line that passes through the point (−2, 3) and is perpendicular to the line on the graph
    6·1 answer
  • Simplify(7x2 + 5) ( x – 3) + 2x( 3x – 4)<br><br><br> MUST SHOW WORK
    7·1 answer
  • A manufacturer of cheese filled ravioli supplies a pizza restaurant chain. Based on data collected from its automatic filling pr
    8·1 answer
  • As a prank, a friend decided to fill your car with balls from a ball pit. assuming the inside of your car is a rectangular prism
    14·1 answer
  • An isosceles triangle has an angle that measures 90°. which other angles could be in that isosceles triangle? choose all that ap
    14·1 answer
  • Brian is a salesman for a wholesale computer parts company. He earns commission at the rate of 4%. Last month his total sales $8
    5·2 answers
  • Which of the following is the
    7·1 answer
  • If f(x) = 3x + 4(x + 1) + 2 then f (4x) =?
    10·2 answers
  • Carlos made three dozen 2
    13·1 answer
  • What is the value of the expression 10 + ( fraction 1 over 2 )4 ⋅ 48?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!