2(8x - 1) + 7(x + 5) = -59 Distribute/multiply 2 into (8x - 1), and multiply 7 into (x + 5)
16x - 2 + 7x + 35 = -59 Combine like terms
23x + 33 = -59 Subtract 33 on both sides
23x = -92 Divide 23 on both sides
x = -4
[proof]
2(8x - 1) + 7(x + 5) = -59
2(8(-4) - 1) + 7(-4 + 5) = -59
2(-32 - 1) + 7(1) = -59
2(-33) + 7 = -59
-66 + 7 = -59
-59 = -59
Answer:
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Answer:
Read below.
Step-by-step explanation:
A perfect cube is a number cubed (If that makes sense). Such as 3³ will equal a perfect cube because it's being multiplied by itself 3 times. 3×3×3=9. It will work for any whole number. You can check if a given number is a perfect cube by using the cube root ().
Hope it makes sense!
hi <3
i think this makes more sense if you draw a diagram
so basically, as we are working out the horizontal component, decide if you need to use sin or cos.
as the side is next to the angle, you would use cosine.
thus, your answer would be 27cos49
(the vertical component would be 27sin49)
hope this helps :)