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
professor190 [17]
3 years ago
9

How to work out volume of prisms and cylinders

Mathematics
1 answer:
Mashcka [7]3 years ago
6 0

Prism=½ x base x height x prism height

Cylinder =πr²h

You might be interested in
Answer the following true or false. Justify your answer.
Anna007 [38]

Answer:

a) False b) False c) True d) True e) True

Step-by-step explanation:

a) If A is a subset of B, and x∈B, then x∈A. False

Suppose A is Z (Set of Integers), and B is R (Set of Real Numbers). Then A is a subset of B. x ∈ B, let's say x equals π. If x ∈ B (B = Real Numbers) and x=π then x ∉ A (Z).

We could call A, any other subset of Real numbers (Q, I,..) and we both would come up to the same conclusion when it comes to Real numbers the Set.

So this conclusion is False. Not always an element of a subset is an element of a set.

b) False

For this one, I've drawn some lines, and it is useful to work with them.

Given the set {(x,y) ∈ R²| 0<x<0} then all negative and positive numbers but zero belong to this set.

c) If A and B are square matrices, then AB is also square. True

Taking into account the rules for multiplying matrices. The number of columns of A must be the same number of lines of B to there can be a matrix product.

Whenever we multiply square matrices, we'll always get square matrices. Then this conclusion is true.

d) A and B are subsets of a set S, then A∩B and A∪B are also subsets of S. True

Suppose A= Z (Integer Numbers) and B=Q (Rational Numbers) and S= R (Real Numbers)

A∩B = Z∩Q=∅ and A∪B =Z∪Q = subset

Since the ∅ empty set ⊂ in every set and ZUQ is another Subset of R this is a True conclusion.

e) True. For a matrix A, we define A²= AA

For any Power of Matrices, all we have to do is multiply any given matrix by itself for a given number of times.

M²=M*M

M³=M*M*M

7 0
3 years ago
If f(x)=5x^2 and g(x)=x+1 find (f•g)
LenKa [72]

(f•g)=   f(1)•g(1)

= 5(1)^2 • (1)+1

= 5(1) • 2

= 5 • 2

= 10

Your answer here is 10.

Hope I helped!

8 0
3 years ago
Read 2 more answers
A theme park charges $52 for a day pass and $110 for a week pass. Last month, 4,432-day passes were sold and 979-week passes wer
Naddika [18.5K]

Answer:    $52 x 4 =230,464    $110 x 979 = 107,690.         ESTIMATED ANSWER: 300,000

230,464

+107,690= 338,154                

Step-by-step explanation: Hope this helped you!

3 0
2 years ago
What is the surface area of the rectangular prism below?
kati45 [8]

Answer:

12×6×2+6×5×2+12×5×2= 324m^2

3 0
3 years ago
Please help me with this question!!
stepladder [879]

Answer:

  1. rational
  2. irrational
  3. irrational
  4. irrational
  5. √7, it is irrational

Step-by-step explanation:

A <em>rational</em> number is one that can be expressed as the ratio of two integers. All fractions that have integer numerators and (non-zero) denominators are <em>rational</em> numbers. Any finite decimal number, or any repeating decimal number, is a rational number. These can always be expressed as the ratio of two integers. For example, 0.4040... = 40/99, and 0.286 = 286/1000.

To make an irrational sum, at least one of the contributors must be irrational. You want an irrational 2-number sum that has 7/8 as one of the contributors. Since 7/8 is rational, the other contributor must be irrational.

__

<u>Step 1</u>. The number 7/8 is <em>rational</em>.

<u>Step 2</u>. The desired sum is <em>irrational</em>.

<u>Step 3</u>. The rule <em>rational + </em><em>irrational</em><em> = irrational</em> applies.

<u>Step 4</u>. An <em>irrational</em> number must be chosen.

Step 5. √7 will produce an irrational sum, because <em>it is irrational</em>.

5 0
3 years ago
Other questions:
  • According to a survey on us population, the probability that a man will live seventy-five years is 0.62 and that he will live up
    8·1 answer
  • Solve for c in the equation 32c = 128.
    14·1 answer
  • In a survey, 27% of the people chose salads over a meat dish. In all 81 people chose salads. How many people were in the survey
    8·1 answer
  • Help quick please you don’t have to show work
    12·2 answers
  • pleaseeee answer correctlyyy !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!
    12·1 answer
  • 2x-3y=8<br> 2x+3y=4. Please show your work and tell me how you go the answer
    13·2 answers
  • 2
    11·1 answer
  • Ill give u brainly if u get the correct answer
    5·1 answer
  • Solve and describe the steps used to find x for the equation : <br> 7x - 4 = -4x + 18
    15·2 answers
  • A man claims to have extrasensory perception (ESP). As a test, a fair coin is flipped 23 times, and the man is asked to predict
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!