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nikdorinn [45]
3 years ago
12

Help me please please help please

Mathematics
2 answers:
Dominik [7]3 years ago
7 0

Answer:

99

Step-by-step explanation:

180-81 = 99

Hope this helps!

Mila [183]3 years ago
5 0

Anwser: B

Step-by-step explanation:

*Both angle 3 & 4 make a linear angle

*A linear angle equals to 180 degrees

1) 180 -81 = 99 degrees

The anwser is B, hoped that helped ;)

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Find the cosine ratio of angle Θ. Clue: Use the slash symbol ( / ) to represent the fraction bar, and enter the fraction with no
Zigmanuir [339]

Answer:

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Step-by-step explanation:

Given:

In ∆ ABC.

AB measures = 4

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CA measures = 3

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Find attached the diagram from the given information.

We are to find the cosine ratio. To do this, we would apply SOHCAHTOA in trigonometry

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Cosine ratio: Cosθ = adjacent/hypotenuse

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Emma comes home from school at 4 p.m. and goes to bed at 8 p.m. if she spends 10 minutes each day doing homework, find the ratio
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Step-by-step explanation:

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Help pleasseeee<br> If f(x)=3x^2-7x find f(-2)
LenKa [72]

Answer:

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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

<u>Algebra I</u>

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Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = 3x² - 7x

f(-2) is x = -2

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                    f(-2) = 3(-2)² - 7(-2)
  2. Exponents:                          f(-2) = 3(4) - 7(-2)
  3. Multiply:                               f(-2) = 12 + 14
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