Answer:
The minimum point is (4.5, -1.25).
Step-by-step explanation:
x^2+19=9x
= x^2 - 9x + 19 = 0
Convert to Vertex form:
(x - 4.5)^2 - 4.5^2 + 19 = 0
= (x - 4.5)^2 - 1.25.
The minimum point is (4.5, -1.25).
Answer:
8
Step-by-step explanation:
Just do 40 divided by 5.
solve it under 10 minutes
First set up the ratio 2/5 = 10/x where <em>x</em> is the number of girls.
Now, we can use cross-products to find the missing value.
So we have (2)(x) = (5)(10).
Simplifying, we have 2x = 50.
Dividing both sides by 2, we find that x = 25.
So there are 25 girls in the class if there are 10 boys.
Answer:
Step-by-step explanation:
Hello:
equation is the line is : y = ax+b a is a slope
y = (3/5)x+b
passing through the point (9;−4) : -4 =(3/5)(9)+b
b = - 4 -27/5 = -47/5
y = (3/5)x- 47/5