Answer:
r = 67.70 feet
Step-by-step explanation:
Area of circle, A = πr²
where r is the radius and π = 3.142
A = πr²
r² = A / π
r = √(A / π)
r = √(14400 / 3.1042)
r = √(4583.66)
r = 67.70 feet
Answer:
y2 = m(x2-x1)+y1
Step-by-step explanation:
Given the expression;
m = y2-y1/x2-x1
Making y2 the subject of the formula
Cross multiply
m(x2-x1) = y2-y1
Add y1 to both sides
m(x2-x1)+y1 = y2-y1+y1
m(x2-x1)+y1 = y2
Hence y2 = m(x2-x1)+y1
Answer: 48 inches, 14 inches, 21 inches and 14 inches.
Step-by-step explanation:
1. The perimeter of the trapezoid is the sum of the lengths of its sides. You know that the perimeter is 97 inches, then, you can write the following expression:
2. Now, you must solve for x, as following:
3. Then length of each side is:
Answer:
The temperature at midnight was: -2 ° C
Step-by-step explanation:
We know the following:
Temperature at 7:00 am = 8 ° C
Midnight temperature: 10 degrees lower than the temperature at 7:00 am
Then the temperature at midnight will be equal to the subtraction of:
8 ° C - 10 ° C
The temperature at midnight was:
8 ° C - 10 ° C = -2 ° C
