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
masha68 [24]
3 years ago
8

Edith wants to make a paperweight at pottery class. She wants the paperweight to have a pyramid-like shape with a base area of 1

20 square centimeters, and she wants it to weigh 400 grams. The density of the clay she is using is 1.6 grams per cubic centimeter. What should be the height of the paperweight?
Mathematics
2 answers:
vitfil [10]3 years ago
5 0

Answer:

6.25

Step-by-step explanation:

Answer on khan academy correct.

kati45 [8]3 years ago
4 0

Answer:

6.25

Step-by-step explanation:

I did it on Khan dw its correct

You might be interested in
Ethan's taxable income is $87,525. Use this tax schedule to calculate the total amount he owes in taxes.
Reptile [31]
$18,617.75 is the answer
$87,525-$77,100=$10,425 (the amount over $77,100)
$10,425 x .28=$2,919 (the 28% taxed amount over $77,100)
$2,919+$15,698.75 (the already taxed amount in the chart)=$18,617.75



8 0
3 years ago
I) Find the volume in terms of pie
SVETLANKA909090 [29]

Answer:

i) pi×4500 cm³

ii) pi×600 cm²

iii) 14 liters

Step-by-step explanation:

in general : the diameter is 30 cm, the radius is half of that (15 cm)

i)

the volume of a cylinder is base area times height.

Vc = pi×r²×h = pi×15²×20 = pi×225×20 = pi×4500 cm³

ii)

similar to volume, the side "mantle" area of the cylinder is the circumference of the base area times height.

surface area of the cylinder mantle is

Scm = 2×pi×r×h = 2×pi×15×20 = pi×30×20 = pi×600 cm²

iii)

for this we need now to do the multiplication with pi and then convert the cm³ to liters.

1 liter = a cube of 10 cm side length = 10×10×10 = 1000 cm³

pi×4500 = 14137.17 cm³ = 14.13717 liters or rounded 14 liters

3 0
3 years ago
What is the distance in units from (2, -12) to (-11, -12)<br> 20 POINTSSS <br> HURRY PLEASEEEE
sweet [91]

Answer:

d= (-11-2)^2 + (-12--12)^2

d= (-13)^2 + (0)^2

d=169

square root the 169

answer is 13

that's the distance from (2, -12) (-11, -12)

hope that helps

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The director of the library calculates that 29% of the library's collection is checked out. If the director is right, what is th
marusya05 [52]

Answer:

The probability that the proportion of books checked out in a sample of 412 books would differ from the population proportion by less than 4% is P=0.9255.

Step-by-step explanation:

The population's proportion is \pi=0.29

If we take a sample of 412 books (n=412), we have a standard deviation of the sampling distribution of:

\sigma_M=\sqrt{\frac{\pi(1-\pi)}{n}}=\sqrt{\frac{0.29*0.71}{412}}=\sqrt{0.0005} =0.0224

We have to calculate the probabilty that the sample proportion will be between 0.25 and 0.33.

z_1=(0.25-0.29)/0.0224=-0.04/0.0224=-1.7857\\\\z_2=1.7857\\\\\\P(0.25

8 0
3 years ago
22broccy-here you go g-<br> what is the sum of negative two squared plus one?
yaroslaw [1]

Answer:

The sum is equal to 5

Step-by-step explanation:

we know that

The algebraic expression of the phrase "  the sum of negative two squared plus one" is equal to

(-2)^{2}+1\\=4+1\\=5

8 0
3 years ago
Read 2 more answers
Other questions:
  • A tree grows app 1 3/4 feet per year. How long will it take the tree to grow from a height of 21 1/4 feet to a height of 37 feet
    11·1 answer
  • Function rule and y intercept
    7·1 answer
  • Rosa Roberto Andrea and innocent find an estimate for square root of 10
    8·1 answer
  • Which percent is bigger: 8 ''A''-students out of 40 or 9 ''A''-students out of 50
    12·1 answer
  • What’s the smallest out of 45, -45, and 90
    12·2 answers
  • Daniel sees a lighthouse in the harbor. He estimates the angle of elevation is 60°. If the lighthouse is 160 feet tall, what is
    10·1 answer
  • Samira needs 22 quarts of lemonade to fill a dispenser. She plans to buy 7 jugs of lemonade. Each jug contains 3.3 quarts. Is th
    5·1 answer
  • PLEASE PLEASE PLEASE HELP!!<br>18 <br>​
    15·1 answer
  • Figue out the measures
    15·1 answer
  • Use the distributive property to evaluate the following expression: 9 x (4 + 9) . Show your work in your answer.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!