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
nevsk [136]
4 years ago
12

Which properties were used to simplify the following expression? Select all that apply.

Mathematics
2 answers:
mash [69]4 years ago
7 0

it is being distributed

explanation:

4 + 3(9 + 2)

4 + (3 × 9) + (3 × 2)

4 + 27 + 6

4 + 6 + 27

10 + 27

37

Llana [10]4 years ago
6 0

4 + <u>3(9 + 2)</u>

4 + <u>(3 * 9) + (3 * 2)</u> is being distributed

Answer:

distributive property

You might be interested in
Brian, Chris, and Damien took a math test that had 20 questions. The number of questions Brian got right is 14 more than the num
shepuryov [24]

<em><u>Question:</u></em>

Brian, Chris, and Damien took a math test that had 20 questions. The number of questions Brian got right is 14 more than 1/4 the number of questions Chris got right. Damien correctly answered 2 less than 5/4 the number of questions Chris answered correctly. If Brian and Damien have the same score, which statement is true?

A) Brian and Damien both answered 2 fewer questions correctly than Chris did.

B) Brian and Damien both answered 4 more questions correctly than Chris did.

C) Brian and Damien both answered 2 more questions correctly than Chris did.

D) Brian and Damien both answered 4 fewer questions correctly than Chris did.

<em><u>Answer:</u></em>

Option C

Brian and Damien both answered 2 more questions correctly than Chris did

<em><u>Solution:</u></em>

Let "x" be the number of correct answers of Brian

Let "y" be the number of correct answers of Chris

Let "z" be the number of correct answers of Damien

<em><u>The number of questions Brian got right is 14 more than 1/4 the number of questions Chris got right</u></em>

x = 14 + \frac{1}{4}y\\ ---------- eqn 1

<em><u>Damien correctly answered 2 less than 5/4 the number of questions Chris answered correctly</u></em>

z = \frac{5}{4}y - 2 ---------- eqn 2

<em><u>Brian and Damien have the same score</u></em>

x = z -------- eqn 3

Therefore,

14 + \frac{1}{4}y = \frac{5}{4}y - 2\\\\\frac{5}{4}y - \frac{1}{4}y = 14+2\\\\y = 16

<em><u>Substitute y = 16 in eqn 1</u></em>

x = 14 + \frac{16}{4}\\\\x = 14 + 4\\\\x = 18

Therefore, by eqn 3,

z = 18

Thus we get,

Number of correct answers of Brian = 18

Number of correct answers of chris = 16

Number of correct answers of Damien = 18

Therefore, correct statement is:

Brian and Damien both answered 2 more questions correctly than Chris did

5 0
3 years ago
Use an inequality symbol ( ,≥,=) to compare -26 _____ 54 A.
melamori03 [73]

Answer: <

Step-by-step explanation: -26 is less than positive 56

8 0
3 years ago
PLEASE HELP! I ACCIDENTALLY STARTED THIS QUIZ TOO EARLY!
telo118 [61]

Answer:

inside

√((5-(-5))^2+((-24)-(-8))^2)=√(10^2+16^2)=√356<25

4 0
3 years ago
Solve x2 + 2x = 4 for x by completing the square. x equals plus or minus square root of 5 plus 1 x equals plus or minus square r
steposvetlana [31]

Answer:

x equals plus or minus square root of 5 minus 1

Step-by-step explanation:

we have

x^{2} +2x=4

Divide by 2 the coefficient of the x-term

2/2=1

squared the number

1^2=1

Adds both sides

x^{2} +2x+1=4+1

x^{2} +2x+1=5

Rewrite as perfect squares

(x+1)^{2}=5

take the square root both sides

x+1=(+/-)\sqrt{5}

x=(+/-)\sqrt{5}-1

therefore

x equals plus or minus square root of 5 minus 1

4 0
3 years ago
- 8(- 3.3) multiply (-3.3) how many times? Move from 0 to where ? Product:_____
son4ous [18]
Multiply -3.3 8 times, and the answer is 26.4
7 0
3 years ago
Other questions:
  • How do find the general solution of sin7A=sinA+sin3A
    6·1 answer
  • Five-year-old Michelle weighs 75 decagrams. What is her weight in centigrams?
    7·1 answer
  • How do you Wright 18,801,310 using exponents
    9·1 answer
  • Calculate the volume of a pyramid with a square base, where the perimeter of the base is 5.7cm and the height of the pyramid is
    9·1 answer
  • What is 4 2/10 - 2 8/10
    9·2 answers
  • 2
    15·1 answer
  • Alto and Brian both ordered the same size pizzas and Marco's Pizza;
    5·1 answer
  • How'd we go from 724 to the answer?
    12·1 answer
  • Find the probability of having 2,3, or 4
    11·1 answer
  • Which is the polynomial written as the product of two binomials?<br> Please help
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!