Answer:
x = 20
Step-by-step explanation:
To do this question, you can use the pythagorean theorem. c is your hypotenuse, a is the unknown side length and b is the known side length.
a^2+b^2=c^2
x^2+15^2=25^2
x^2=225=625
x^2=400
(x^2)^(1/2)=400^(1/2)
x = 20
Answer:
C
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
14 feet is the perimeter
to get the perimeter you need to add alll the sides together
if the length is 3 feet then u add
3 + 3 for both sides
then you subtract 6-14
and that is 8
then you divide it by 2 becuase u need it for one side not both sides combined
The total circle has a measure of 2π radian, so this portion is 1/(2π) of the whole circle
the circumference of the whole circle is 2πr
1/(2π) of 2πr=3.07
r=3.07
Answer:
x=−2+3√2
Step-by-step explanation:
x2+4x+4−18=18−18
x2+4x−14=0
For this equation: a=1, b=4, c=-14
1x2+4x+−14=0
x=
−b±√b2−4ac
2a
x=
−(4)±√(4)2−4(1)(−14)
2(1)
x=
−4±√72
2
x=−2+3√2 or x=−2−3√2
