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
Shkiper50 [21]
3 years ago
11

11-5 practice volumes of pyramids and cones

Mathematics
1 answer:
Minchanka [31]3 years ago
4 0

Answer:

Step-by-step explanation:

Volume for a  cone =  1/3 * pi * r^{2} * h

Volume for a pyramid =  1/3 * area of base * h

You might be interested in
Whath percentage of 1m is 76cm
nlexa [21]

76% is the correct.....

5 0
3 years ago
Name the congruent sides.
olga nikolaevna [1]
The answer is B.
Hope it helps!
4 0
3 years ago
Read 2 more answers
NEED HELP FAST WILL MARK BRAINLIEST
Tju [1.3M]
Pretty sure the answer is 18

3^2+3^2=9+9=18 (with a square root)
6 0
3 years ago
Help me, its trigonometry college
prohojiy [21]

4) (a) For these problems, you should take time to familiarize yourself with common fractions that appear on the unit circle.  \frac{\sqrt{3}} {3} does not appear in the unit circle unless you take the quotient 1/2 divided by sqrt(3)/2 which gives you 1/sqrt(3) which is the same as sqrt(3)/3.  So our numerator is 1/2 and our denominator is sqrt(3)/2.

And remember tangent is just sin/cos.  So what degree has sinx as 1/2 and and cosx as sqrt(3)/2?  Well, 30 degrees does, but 30 degrees is not within the range we are given.  That means they are looking for a sinx that gives us -1/2 and a cosx that gives us -sqrt(3)/2 and that is 210 degrees.

And 210 degrees in radians is 7pi/6.

I hoped that made sense.

(b) This is a lot easier. What angle gives us a cos x of -sqrt(3)/2?  According to the unit circle, 150 degrees and 210 degrees does.  They usually want these in radians, so the answer is 5pi/6 and 7pi/6, respectively.

5) What quadrant is radian measure 5 in?

Well 2pi or roughly 6.28 is a full circle. And 5 is slightly less than 6.28, so it is probably in quadrant IV.

But to be sure let's change 5 radian to degrees:

5 * 180/pi = 900/pi = 286.48 degrees

286.48 degrees is definitely in Q4, so we are correct.




7 0
3 years ago
An investment offers a simple interest rate of 3% per year.
Step2247 [10]

Answer:

sh 23000

Step-by-step explanation:

i = \frac{prt}{100}  =  \frac{20000 \times 3 \times 5}{100}  = 3000

Amount = principal + interest = 20000+3000 = sh 23000

6 0
3 years ago
Other questions:
  • I need to know the area of the walkway and how you got the answer
    8·1 answer
  • 1. which of the following is a solution to the equation y = 3x - 1
    12·1 answer
  • What is the area of the two-dimensional cross section that is parallel to face ABC ?
    8·1 answer
  • Two equivalent expressions for 24x - 3y
    11·1 answer
  • Write the point-slope equation for the
    11·1 answer
  • What is the value of 9.6 x 12.643?
    9·2 answers
  • Idek if the pictures gonna load but if it does plss help! Tyy
    12·1 answer
  • Find three consecutive integers such that the sum of twice the smallest and 3 times the largest is 126
    12·1 answer
  • 7,500 to 8,200
    5·1 answer
  • Yo help 20 points plssssssssssssss
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!