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
wariber [46]
3 years ago
11

I don’t understand number 89! please help I have a test tomorrow!

Mathematics
1 answer:
Rainbow [258]3 years ago
8 0
V = rw

where; v = velocity , r = radius , w = angular speed

you're given the diameter = 0.5 miles so the radius = 0.25 miles

180 = (0.25)w
180/0.25 = w
720 radians per hour = w

2pi radians in 1 revolution

720 rad/hr * 1 rev / 2pi rad = 720/2pi rev/hr
= 114.6 rev/hr
You might be interested in
Parallel and perpendicular Lines faqing help me
liberstina [14]

1.

Perpendicular. y=3x+4

Parallel. y=-1/3 x-8/3

2.

Perpendicular. y=-x-1

Parallel. y=x+11

3.

Perpendicular. y=7/4 x+8

Parallel. y=-7/4 x-9/7

4.

Perpendicular. y=4/5 x-3

Parallel. y=-5/4 x+35/2

yeesh, that took a while :) hope I helped!

4 0
3 years ago
Irene wants to list the factors for 88. She
Paladinen [302]

Almost; she's just missing 1, since 1*88 = 88.

3 0
2 years ago
Can someone find the surface area for this? :)
AysviL [449]

Answer:

84 :)

Step-by-step explanation:

bottom surface area= 6m^{2}

top surface area=6m^{2}

lateral surface area= 72m^{2}

add this together you get TOTAL surface area of 84

3 0
3 years ago
Read 2 more answers
Please help I need help with this question
denpristay [2]

Answer:

2.5% and 2.5 · 10^-3, 0.25, 2/5, √5

Step-by-step explanation:

0.25, 2/5, 2.5 · 10^-3, 2.5%, √5

Now let's list them all in the same form, why not decimals.

0.25 = 0.25

2/5 = 4/10 = 40/100 = 0.4

2.5 · 10^-3 = 2.5 · 0.01 = 0.025

2.5% = 0.025

√5 ≅ 2.236

5 0
2 years ago
There is an outbuilding that has an area of 80 square feet. The rectangle on the blueprint that represents the outbuilding has a
Tanya [424]

Answer:

B) 4

Step-by-step explanation:

There is an outbuilding that has an area of 80 square feet. The rectangle on the blueprint that represents the outbuilding has an area of 20 square inches. If the actual outbuilding has a wall length of 10 feet, what is the length of that wall on the blueprint . A) 3 B) 4 C) 5 D) 6

The length of the wall on the blue print can be calculated as:

20 square feet ÷ 5

= 4 feet

8 0
2 years ago
Other questions:
  • Each student at a particular school participated in at least one type of activity—sports or music. 50 students participate in bo
    14·1 answer
  • Tge ratio of boys to girls is 3 to 2 .if there are 12 boys how many girls are there
    8·1 answer
  • Find two consecutive even integers whose sun is 64
    11·2 answers
  • Can u please help me. just zoom in to see better help me plz ​
    14·2 answers
  • How do you reduce the fraction 600 out of 25
    6·2 answers
  • 3000=30x+36y. Solve for x and y.
    13·1 answer
  • In which step of Polya’s four steps to solving a problem involves preforming the actions and calculations to solve the problem?
    14·1 answer
  • It has been decided that 100 people need to be surveyed to decide the publics opinion on a school building project. A student su
    7·1 answer
  • Find the area of the rectangle with the given base and height.
    10·1 answer
  • A salesperson works 40 hours per week at a job where she has two options for being paid. Option A is an hourly wage of ​14$. Opt
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!