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
Rom4ik [11]
3 years ago
7

A student asks 18 friends to participate in a psychology experiment.

Mathematics
1 answer:
nlexa [21]3 years ago
4 0
The answer is C Becuase hes asking his friends to partake in the psychology experiment
You might be interested in
CAN SOMEONE PLEASE HELP ME WITH THIS ONE? THANK YOU!
hammer [34]
Wait is the middle school.
8 0
2 years ago
So I was doing a hooda math escape game, and forgot how to do these. Can you help me?
Elan Coil [88]
Pi * r ^ 2 that’s house help you out with what you need hunn
5 0
3 years ago
Read 2 more answers
There are about 320 million people living in the United States. Of these, how many would you predict wear corrective lenses
tiny-mole [99]

Answer:

240 million

Step-by-step explanation:

Google said that three out of four people wear corrective lenses which is also 75%. So whats 75% out of 320 million? <u>Half of 320 million is 160 million</u>. <u>Half of 160 million is 80 million, 160 million plus 80 million is </u><u>240 million.</u>

8 0
3 years ago
Read 2 more answers
A FEW MATH QUESTIONS ! PLEASE EXPLAIN ANSWERS ! (:
7nadin3 [17]

answers

1) 70

2) 3,840

3) 24

4) 72


<u>Explanation</u>

Q1

The surface area of a cone is given by;

S.A = 2Πrl + Πr²

Where r is the radius of the base and l is the lateral height.

Πr² = area of the base = 20 in²

2Πrl = Area of the lateral surface

         = 2.5 × 20

          = 50

Area of the cone = 50 + 20

                            = 70 in²

Q2

The sides of the Pythagorean triangle with legs of 12 and 16.

The 3rd side will be;

c = √(12² + 16²)

  = √400 = 20

Volume = 12 × 16 × 20

              = 3,840

Q3

The volume of a cone is given by;

volume = 1/3 Π r² h

This shows that the volume of a cone is a third the volume of the cylinder.

∴ Volume of the cylinder = 12 × 3

                                            = 24 ft³

Q4

The volume of any regular figure is;

Volume = base area × height

When the dimensions area usually 3. Let these dimensions be x, y and z.

∴ volume  = x × y × z = 9

  Doubling the dimensions;

Volume = 2x × 2y × 2z = 2 × 2 × 2 × 9

             = 8 × xyz = 8 × 9

             = 72 ft²



3 0
3 years ago
Read 2 more answers
5/16=n/16 help please
Vsevolod [243]
Both have the same denominator
Remove the denominator
5=n
3 0
3 years ago
Read 2 more answers
Other questions:
  • Add:<br><br> 2⁄4 + 3⁄5 + 6⁄8
    11·2 answers
  • Help me please. I’m getting frustrated. I keep writing out the equation wrong and don’t know where I’m messing up Write all solu
    7·2 answers
  • What is a way to write 100,000 using exponents?
    6·2 answers
  • Please answer number 6
    12·1 answer
  • (x2 + 4)(x2 - 4) please answer it
    5·1 answer
  • A web store offers two versions of a popular song. the size of the standard version is 2.5 megabytes. the size of the high-quali
    13·1 answer
  • What's the standard form for 32
    7·1 answer
  • 3x = 18 and y + 1 = 4. Find 2^x • 2^y.
    5·1 answer
  • In this exercise, you'll use the formula for the probability of the complement of an event. another game you’ve set up at casino
    10·1 answer
  • Use the following variables for #'s<br><br>(3-5):<br><br>f= -6 g= 7 h=9<br><br><br>4) 5-f
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!