Answer:
angle A + angle B = 180 degrees is correct
Step-by-step explanation:
I could explain it, but you have to ask me, other than that the answer is 5(x+7)(9x-4).
Answer:
BC ≈ 14 units
Step-by-step explanation:
using Pythagoras' identity in the right triangle.
the square on the hypotenuse is equal to the sum of the squares on the other 2 sides , that is
BC² + AB² = AC²
BC² + 18² = 23²
BC² + 324 = 529 ( subtract 324 from both sides )
BC² = 205 ( take square root of both sides )
BC =
= 14.317.. ≈ 14 units ( to the nearest unit )
Answer:
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
Step-by-step explanation:
we are given
speed =8 mph
time = 6 hours
so, we have

now, we can find distance
distance = (speed)*(time)
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
so, we have

so, our range for x and y can be
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