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guapka [62]
3 years ago
10

Which expression is equivalent to

Mathematics
1 answer:
taurus [48]3 years ago
7 0

Answer:

d

Step-by-step explanation:

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Simplify, if x = 2 and y = -1: 3(y + 2)^2 + 3x
svet-max [94.6K]

Answer:

9

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

Step-by-step explanation:

<u>Step 1: Define</u>

3(y + 2)² + 3x

x = 2

y = -1

<u>Step 2: Evaluate</u>

  1. Substitute:                    3(-1 + 2)² + 3(2)
  2. Add:                              3(1)² + 3(2)
  3. Exponents:                   3(1) + 3(2)
  4. Multiply:                        3 + 6
  5. Add:                              9
5 0
3 years ago
A car increases, then decreases, its speed. Which table could represent the speed of the car?
lakkis [162]

Answer:

B is answer

Step-by-step explanation:

3 0
3 years ago
Mina uses 128 pounds of dog food to feed her 16 dogs. find the unit rate per dog
MAXImum [283]

The unit rate is 8 pounds per dog.

128 / 16 = 8

7 0
4 years ago
Read 2 more answers
Pls hurry I need the answer
katrin [286]
<h3>Answer:  48 degrees</h3>

=============================================

Work Shown:

Apply the law of cosines

a^2 = b^2 + c^2 - 2*b*c*cos(A)

10^2 = 13^2 + 11^2 - 2*13*11*cos(A)

100 = 290 - 286*cos(A)

100-290 = -286*cos(A)

-190 = -286*cos(A)

190 = 286*cos(A)

286*cos(A) = 190

cos(A) = 190/286

A = arccos(190/286)

A = 48.368620460647

A = 48

Make sure your calculator is in degree mode.

3 0
2 years ago
If x-2y=1, what is the value of 2 3x-6y?
MaRussiya [10]
I hope this helps you

4 0
3 years ago
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