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
Lunna [17]
3 years ago
8

The formula h = 60t - 5t2 can be used to find the height h, in meters, of an object shot upward with initial speed of 60 meters

per second and after t seconds. What would be the height after 3 seconds?
Mathematics
1 answer:
slega [8]3 years ago
7 0

Answer:

135 meters

Step-by-step explanation:

h = 60t - 5t²

t is in seconds and it says to find out the height after 3 seconds

Sub the value '3' into 't'

h = 60(3) - 5(3)²

h = 180 - 5(9)

h = 180 - 45

h = 135 m

You might be interested in
Ben has $100 to go shopping. Does he have enough money to buy a $20 and a $72 pair of shoes if there is an 8.5% tax
Juli2301 [7.4K]

So, we first add the 20 and 72 together and you will get 92.

What I like to do next is usually 92/100x8.5. The tax would be then 7.82

92 + 7.82 = 99.82 < 100

The answer is yes.

7 0
3 years ago
What is the domain of y = cos ^-1x?
Bas_tet [7]

Answer:

Step-by-step explanation:

Correct option is

D

[1,(1+π)  

2

]

f(x)=(1+sec  

−1

(x))(1+cos  

−1

(x))

Here the limiting component is cos  

−1

(x), since the domain of cos  

−1

(x) is [−1,1].

Therefore,

f(1)=(1+0)(1+0)

=1

f(−1)=(1+π)(1+π)

=(1+π)  

2

 

Hence range of f(x)=[1,(1+π)  

2

]

8 0
2 years ago
18. Two planes left an airport at the same time. One flew north at a set speed and the other
Andre45 [30]

Answer: plane A = 333.33mph

Plane B = 500mph

Step-by-step explanation:

Given data:

Distance between the two planes = 2400miles.

Plane A flew North

Plane B flew south

Solution:

Let v represent plane A.

Let 2v represent plane B.

Distance between the two plane

v + 1.5* v = 3*v

7.5v = 2500miles

v = 333.33mph

Plane B has one and half times the speed of plane A

= 1.5 * 333.33

= 500mph

4 0
3 years ago
What is the kinetic Energy of a camion of 5,000 kg and turn at 100km/h ?
Alex787 [66]

Step-by-step explanation:

Given

mass (m) = 5000 kg

velocity (v) = 100 km/h = 100* 1000/ 3600 = 27.78m/s

Now

Kinetic energy

= 1/2 mv²

= 1/2 * 5000 * 27.78²

= 1929321 joule

6 0
3 years ago
Find the value of z.
nataly862011 [7]

Answer:

z = \frac{50}{3}

Step-by-step explanation:

The ratio of corresponding sides are equal, that is

\frac{z}{10} = \frac{20}{12} ( cross- multiply )

12z = 200 ( divide both sides by 12 )

z = \frac{200}{12} = \frac{50}{3}

8 0
2 years ago
Other questions:
  • Plz guys help me I don't no how to do math plz
    6·1 answer
  • Which number is the principal square root of 49
    5·2 answers
  • The canopy of a parachute is a semicircle with a radius of 13 feet. A company that is making parachutes for a Fourth of July cel
    14·2 answers
  • Help please with the question
    11·1 answer
  • Is 22 to 8 and 88 to 48 a proportion
    13·2 answers
  • The product of the square of a number and -7
    8·1 answer
  • I need the answers for <br>41.<br>42.<br>43.<br>someone please help this is due tmr.​
    15·1 answer
  • What is the slope of your equation?
    6·1 answer
  • Find x in the triangle below. Round your answer to the nearest tenth.
    10·1 answer
  • Mr Chopra wants to put a wooden border around a painting. If the length of the painting is 40 cm and its breadth is 25 cm, what
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!