Answer:
Step-by-step explanation:
<u>Step 1: Set y to 15 and solve</u>
<u />

<em>Add 10 to both sides</em>
<em />

<em>Multiply both sides by 5</em>
<em />

Answer: 
Answer:
89.9403 ...
Step-by-step explanation:
The answer is N=13(x+12), where x represents the amount of pounds Steven's boxes weighed and N represents the total number of pounds Nathan lifted.
Answer: x = - 12
8x + 45 = 10x + 69
⇔ 10x - 8x = 45 - 69
⇔ 2x = -24
⇔ x = -12
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Using the trig. identity
cos x = 
Given
secx = -
, then
cos x = -
×
= -
= -
, thus
x =
(-
) =
→ B