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saveliy_v [14]
2 years ago
7

What does AC=? Round your answer to the nearest hundredth. Please help

Mathematics
1 answer:
faltersainse [42]2 years ago
4 0

Answer: About 3.06

Step-by-step explanation:

  We can use trigonometry functions to solve for AC. Let the ?, representing AC, be "x" in our mathematical work.

  Since we have the hypotenuse and x is adjacent to the angle given, I am going to use cosine.

      cos(θ) = \frac{adjacent}{hypotenuse }

      cos(40) = \frac{x}{4}

      0.766 ≈ \frac{x}{4}

      3.06 ≈ x

      x ≈ 3.06

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6 0
2 years ago
What the GCF of 6 and 11
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3 0
3 years ago
I really need help and I'm really struggling
larisa [96]
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6 0
3 years ago
What is the value of x in 0.8x = 7.2
Ann [662]

Answer:

x = 9

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

Step-by-step explanation:

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

0.8x = 7.2

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

  1. Divide both sides by 0.8:                    x = 9

<u>Step 3: Check</u>

<em>Plug in x to verify it's a solution.</em>

  1. Substitute:                    0.8(9) = 7.2
  2. Multiply:                        7.2 = 7.2

7.2 does indeed equal 7.2. ∴ x = 9 is a solution.

And we have our final answer!

4 0
3 years ago
Read 2 more answers
Someone please help me I got those three red boxes incorrect so many times
sp2606 [1]

Hi there!

-10-2 is equal to -12, not -8. This changes everything.

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I hope this helps!

8 0
3 years ago
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