Answer:
Step-by-step explanation:
we know that
Landon finished 1/2 of the test in 3/5 of an hour
so
by proportion
Find out how much of the test will he have done in one hour
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ANSWER
EXPLANATION
The law of cosine is given by the formula:
From the diagram,
a=17, b=8, c=16
We substitute the given values into the formula to obtain:
EXPLANATION
The law of cosine is given by the formula:
From the diagram,
a=17, b=8, c=16
We substitute the given values into the formula to obtain:
Answer:
x = 13
Step-by-step explanation:
The area (A) of a trapezium is calculated as
A = h (b₁ + b₂ )
where h is the perpendicular height and b₁, b₂ the parallel bases
Here A = 55, h = 5. b₁ = x, b₂ = 9, then
× 5 × (x + 9) = 55
2.5(x + 9) = 55 ( divide both sides by 2.5 )
x + 9 = 22 ( subtract 9 from both sides )
x = 13