We know that
applying the law of cosines
a² = b²+ c²<span> – 2*b*c*cos(A)
</span>
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
3 x 4 is equal to 12 I think that’s your answer
Answer:
7
Step-by-step explanation:
Let the each leg be x so,
√(x²+x²)=√98
or, √(2x²)=√98
or, x√2=7√2
or, x=7
I believe the answer is 11ft
Answer: A. 4.79(n)=20.00
Step-by-step explanation:
we need to find what amount of coffee (per pound) is equivalent to $20.00
so we take the unknown amount (n) and multiply it by $4.79
for example, say Ken wants 4 pounds, we need to know if it is equivalent to $20.00
so take 4.79 and multiply it by 4 to see if it is equal to or less than $20.00 in this case $4.79 x 4 = $19.16
hope this helps (^_^)
