Split it up into 3 separate shapes.
Rectangle 1 = 15 x 3 = 45
Rectangle 2 = 3 x 5 = 15
Triangle = 1/2 x 5 x 3 = 7.5
Total area = 45 + 15 + 7.5 = 67.5 cm²
Answer:
Step-by-step explanation:
Remark
The rate is going to be the same as the distance travelled in 1 hour. The units will be different.
Formula
d = r * t
Givens
d = 558 miles
t = 3 hours
Problem A
r = d / t
r = 558/ 3 = 186 miles / hr
Problem B
Givens
r = 186 miles / hour
t = 1 hour
d = ?
Solution
d = 186 mi/hr * 1 hr
d = 186 miles
<u>Note</u>
This looks really trivial, but it's not. You have to learn to see the difference between a number and its units. It's not very often that the numbers will be the same, but if the units differ, then it is an entirely different question.
Thomas Jefferson, George Washington, Theodore Roosevelt, and Abraham Lincoln.
Let the function equal 416 and solve for x.
2x^2 - 6x = 416
2x^2 - 6x - 416 = 0
x^2 - 3x - 208 = 0
(x - 16)(x + 13) = 0
x - 16 = 0 or x + 13 = 0
x = 16 or x = -13
Since the number of rows cannot be negative, discard the -13 solution.
Answer: There are 16 rows.
