Which of the following is true?Justin is married with one child. He works 40 hours each week at a rate of $16 per hour. His wife
1 answer:
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Answer:
<h2>1) C. 8x + 2x = 10x</h2><h2>2) z = 5</h2><h2>3) y = 10</h2><h2>4) x = 1/2</h2><h2>5) x = 17</h2><h2>6) C. 1/4x + 4 = 3</h2><h2>Step-by-step explanation:</h2><h3>1. <u>C. 8x + 2x = 10x</u></h3><h3 /><h3>2. 3z - 2 = 13</h3><h3>3z = 13 + 2</h3><h3>3z = 15</h3><h3><u>z = 5</u></h3><h3 /><h3>3. -5y - 10 = -60</h3><h3>-5y = -60 + 10</h3><h3>-5y = -50</h3><h3><u>y = 10</u></h3><h3 /><h3>4. 4x - 5 + 2x = -2</h3><h3>4x + 2x = -2 + 5</h3><h3>6x = 3</h3><h3><u>x = 1/2</u></h3><h3 /><h3>5. x - 8/3 = 3</h3><h3>x - 8 = 9</h3><h3>x = 9 + 8</h3><h3><u>x = 17</u></h3><h3 /><h3>6. <u>C. 1/4x + 4 = 3</u></h3><h3>(1/4 × -4/1) + 4 = 3</h3><h3>-1 + 4 = 3</h3><h3 />
Answer:
A
Step-by-step explanation:
Cosine is the ratio of "adjacent" to "hypotenuse"
With respect to the Angle E, the adjacent side is FE and the hypotenuse (always opposite side to 90 degree angle) is DE.
We are given DE = 26, but we need FE. We will solve for FE using Pythagorean Theorem, which tells us:
leg^2 + another leg^2 = hypotenuse^2
So, we will have:
10^2 + FE^2 = 26^2
Now, we solve for FE:
So,
Cos(E) = adj/hyp = 24/26
Correct answer is A