Answer:
Domain- [-4,∞) ; Range- [-2,∞)
Step-by-step explanation:
For Domain, we need to find the range of value for x,
As the value for x+4 should be positive or 0 because it is under the square root bracket sign.
x ∈ [-4,∞)
For the range of values, we need to find all the possible value of y
As the value given by the square root will always be greater than equal to 0.
Therefore ,
y ∈ [-2,∞)
The parallel lines create similar triangles. Which means sides are proportional...
So if then the ratio of AR to AS = 5/7
Create a proportion with the other similar triangle that contains the shared side:
Cross multiply
e =
A(x - (-9))(x - (-3)) = a(x - (-6))² + (-1)
a(x + 9)(x + 3) = a(x + 6)² - 1
a(x² + 3x + 9x + 27) = a(x² + 12x + 36) - 1
ax² + 12ax + 27a = ax² + 12ax + 36a - 1
27a = 36a - 1 |subtract 36a from both sides
-9a = -1 |divide both sides by (-9)
a = 1/9
ax² = 1/9x²
12ax = 12·1/9x = 4/3x
27a = 27·1/9 = 3
Answer: y = 1/9x^2 + 4/3x + 3
She can get 3 shirts
explanation:
$50-$5 (shipping fee) = $45
$45/$15 (price of each shirt) = 3
Answer: 55.488 or 55 61/125
Step-by-step explanation:
Because I used a calculator so I know this is right.
