We know that
applying the law of cosines
a² = b²+ c²<span> – 2*b*c*cos(A)
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in this problem
a=?
b=20
c=9
A=90°
so
a² = b²+ c² – 2*b*c*cos(A)
but
cos (A)=0
a² = b²+ c²-----> 20²+9²----> a²=400+81----> a²=481-----> a=√481
a=21.93-----> a=22
the answer is
22
Answer:
j=10-3k
Step-by-step explanation:
here you go...i hope it's correct
Answer:
linear
Step-by-step explanation:
Answer:
The solution is 12. The equation is (115 - 19) ÷ 8.
Step-by-step explanation:
We can solve this problem by using division.
First, let's take away 19.
115 - 19 = 96
Now let's divide 96 by 8.
96 ÷ 8 = 12.
And we have 12, our answer.
Answer:
Step-by-step explanation:
Given
Required
Solve for x
Take Log of both sides
Apply law of logarithm
Divide both sides by Log35
Approximate