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
blsea [12.9K]
4 years ago
12

Systematic random sampling is used to interveiw residents in 25% of 80 apartments in a building. The sampling interval would be

Mathematics
1 answer:
DedPeter [7]4 years ago
8 0

The answer is A, A is the answer

You might be interested in
What value of x makes the equation true?<br> 3(4x-5)-4x+1=-6<br> Please show work
V125BC [204]

Answer:

x = 1

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

Step-by-step explanation:

<u>Step 1: Define Equation</u>

3(4x - 5) - 4x + 1 = -6

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Distribute 3:                    12x - 15 - 4x + 1 = -6
  2. Combine like terms:       8x - 14 = -6
  3. Isolate <em>x</em> term:                 8x = 8
  4. Isolate <em>x</em>:                          x = 1

<u>Step 3: Check</u>

<em>Plug in x into the original equation to verify it's a solution.</em>

  1. Substitute in <em>x</em>:                    3(4(1) - 5) - 4(1) + 1 = -6
  2. Multiply:                               3(4 - 5) - 4 + 1 = -6
  3. Subtract:                              3(-1) - 4 + 1 = -6
  4. Multiply:                               -3 - 4 + 1 = -6
  5. Subtract:                              -7 + 1 = -6
  6. Add:                                     -6 = -6

Here we see that -6 does indeed equal -6.

∴ x = 1 is the solution to the equation.

3 0
3 years ago
The product of 2, and a number increased by 7, is -36
vodka [1.7K]

Here is the equation you should use.

2(x+7) = -36

4 0
3 years ago
Use the net as an aid to compute the surface area of the triangular prism.
Harrizon [31]

Answer:

Option C. 564\ mm^{2}

Step-by-step explanation:

we know that

The surface area of the triangular prism using the net is equal to the area of two triangles plus the area of three rectangles

so

SA=2(\frac{1}{2})(10)(12)+2(13)(14)+(10)(14)

SA=60+364+140

SA=564\ mm^{2}

4 0
3 years ago
Read 2 more answers
HELPPPPPPP MEEEEEEE PLEASE
sineoko [7]
Take a better pic I can’t seee
5 0
3 years ago
Read 2 more answers
Which expressions have an estimated quotient of 200? Select all that apply.
marta [7]

Answer:

E

                                       

                                             

Hope it helps!                    

3 0
3 years ago
Other questions:
  • Ervin sells vintage cars. Every three months, he manages to sell 13 cars. Assuming he sells cars at a constant rate, what is the
    5·1 answer
  • What are Interquartile range
    9·1 answer
  • Which one's the easiest? I need help uwu.
    9·1 answer
  • What is the value of the expression 7−3 ?
    5·1 answer
  • Match each number with its place in order from smallest (1st) to largest (6th).
    14·1 answer
  • Find the domain of the relation:
    7·1 answer
  • The graphs of the equations 4x - y = 6 and x + y = 4 intersect at
    12·1 answer
  • A flagpole is 20 feet tall. At 4 p.m. it casts a shadow that is 15 feet long. How far is it from the top of the flagpole to the
    7·1 answer
  • How many times can you subtract 10 from 100?<br><br><br> (hint hint, trick question)
    6·2 answers
  • ANSWER FOR A BUNCH OF POINTS !!EASY!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!