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dalvyx [7]
3 years ago
14

Help me if your good at math,,,

Mathematics
2 answers:
tino4ka555 [31]3 years ago
7 0

Answer:

a. -12

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS

Step-by-step explanation:

<u>Step 1: Define</u>

h(r) = (2/3)r - 6

h(-9) is r = -9

<u>Step 2: Evaluate</u>

  1. Substitute:                    h(-9) = (2/3)(-9) - 6
  2. Multiply:                        h(-9) = -6 - 6
  3. Subtract:                       h(-9) = -12

And we have our answer!

lara [203]3 years ago
6 0

Answer:

a is correct

Step-by-step explanation:

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julsineya [31]

Answer:

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7 0
3 years ago
Need help with this question please for a grade
shutvik [7]
Y = x + 1.75...so we sub in x + 1.75 for y in the other equation

4x - 2y = 4
4x - 2(x + 1.75) = 4....distribute thru the parenthesis
4x - 2x - 3.5 = 4....add 3.5 to both sides
4x - 2x = 4 + 3.5...simplify
2x = 7.5....divide both sides by 2
x = 7.5 / 2
x = 3.75

now we sub in 3.75 for x in either of the original equations to find y.

y = x + 1.75
y = 3.75 + 1.75
y = 5.5

so ur solution is : (3.75,5.5) <==



6 0
4 years ago
Read 2 more answers
72 rounded to the tens
bogdanovich [222]

Answer:

70

Step-by-step explanation:

5 and above, give it a shove.

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7 0
3 years ago
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3 years ago
Solve the triangle. A = 46° a = 33 b = 26
frozen [14]
Using sin rule:
a/sin A =b/sin B=c/sin c
SIN A=sin 46=0.72
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sin C=sin 100=0.98
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4 years ago
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