Answer:
5
Step-by-step explanation:
use the formula y2-y1/x2-x1 = 28-18/4-2=10/2=5
A. The answer is negative eighteen
Answer:
<em>$1.50</em>
Step-by-step explanation:
Given the total weekly pay of Hector modeled by the equation;
y = 10(8.5 + x)
We are to find the amount of Hector's raise per hour x given the total oay y = $100
Substitute y = 100 into the equation and find x as shown;
y = 10(8.5 + x)
100 = 10(8.5+x)
100/10 = 8.5 + x
10 = 8.5 + x
x = 10 - 8.5
<em>x = 1.5</em>
<em>Hence the amount of Hector's raise per hour is $1.50</em>
Answer:
3) B. 77 flowers
4) A. 62.8
Step-by-step explanation:
3) First find the area. The area of a circular flower bed is found using the formula for a circle A = πr². Here the diameter is 14 so r =7.
Substitute r = 7.
A = π(7)² = 49π = 153.86 square feet.
Each flower requires 2 square feet.
Divide the area by 2 for the number of flowers.
153.86 / 2 = 76.93 = 77
4) First find the area of the entire circle. The area is found using the formula for a circle A = πr².
Substitute r = 6.
A = π(6)² = 36π = 113.04 square feet.
Now find the area of the small circle inside. Then subtract the two areas.
The area is found using the formula for a circle A = πr².
Substitute r = 4.
A = π(4)² = 16π = 50.24 square feet.
The shaded area is 113.04 - 50.24 = 62.8.
