Answer:
42.537 m
Step-by-step explanation:
Let x = height of tower
tan 28 = x/80
x = 80 tan 28
x = 42.537 m
Perpendicular lines have gradients that multiply to give -1
So, the gradient of the line we need is -1/0.2 = -5
If we have the gradient and a point in the line, we can work out the equation using the formula:
y - y1 = m(x - x1)
where m = gradient, y1 = y-coordinate and x1 = x-coordinate of the same point
So, we substitute in our values, and we get:
y - -8 = -5(x - -7)
y+8 = -5x-35
y = -5x-43
Hope I helped! xx
Answer:
Step-by-step explanation:
Remember that 
.
When you multiply powers with the same base, add the exponents. Do this in the denominator.
When you divide powers with the same base, subtract the exponents.
Answer: the answer is either the first one or the third not exactly sure
Step-by-step explanation:
Answer:
No solution
Step-by-step explanation:
10x + 30 +16 x +24 = 26 x + 57
26x + 56 = 26x + 57
56 ≠ 57
