Answer:
a) y = 1/2x + 5/2
y = 2/5x + 29/5
b) hair will be 19 inches for both at 33 months
Step-by-step explanation:
a) rate of growth of friend's hair: (3, 4) (8, 6.5)
(6.5 - 4) ÷ (8 - 3) = 2.5/5 or 1/2
find the y-intercept of equation for growth of friend's hair:
y = mx + b
4 = 1/2(3) + b
4 = 3/2 + b
8/2 - 3/2 = b
5/2 = b
equation for growth of friend's hair:
y = 1/2x + 5/2
rate of growth of cousin's hair: (3, 7) (8, 9)
(9 - 7) ÷ (8 - 3) = 2/5
find the y-intercept of equation for growth of cousin's hair:
y = mx + b
9 = 2/5(8) + b
9 = 16/5 + b
45/5 - 16/5 = b
29/5 = b
equation for growth of cousin's hair:
y = 2/5x + 29/5
b) y = 1/2x + 5/2
y = 2/5x + 29/5
1/2x + 5/2 = 2/5x + 29/5
5/10x + 25/10 = 4/10x + 58/10
1/10x = 33/10
10x = 3300
x = 33
Well you would take the store credit and subtract that from the total so you would do 52.22-39.58 and you would have to spend $12.64
Answer:
√13
Step-by-step explanation:
Distance formula
√(4-2)²+(5-2)² = 2²+3² = √4+9 = √13
Answer:
Explanation:
The<em> cone</em> is said to <em>fit perfectly inside the can</em> when the diameter of the cone and its height are equal to those of the can.
The shape of a can can be considered a cylinder.
The<em> volume of a cone that fits into the can</em> is 1/3 the volume of the can.
Thus, the volume of our cone is (1/3) × 42 unit³ = 14 units³
Answer:
-1/6
Step-by-step explanation:
first, we multiply the two fractions in the parentheses to get 1/3.
now we add 1/3 and -1/2 together. doing this we get -1/6
