Answer:
32 + 4(h) = 60
Step-by-step explanation:
The 32 in the equation represents the $32 Ali already has. The 4 represents how much she makes per hour. And the h represents how many hours Ali needs to reach her goal of 60. Now all you need to do is find h. h should equal 7. 32 + 4(7) = 60.
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Answer:
a. -2x^2 + 3x+5=y
b.-x^2 +5x-4=y
c.-x^2 +6x-12=y
Step-by-step explanation:
a.y=-2x^2 +bx+c
the points P and Q lie on curve
=> b=3, c=5
b. delta = b^2 +4c
x1= =4
=> =8
x2==1
=>2=b+
suppose : = a
=>
=> a=-3
b=5
a=-3 => =-3 => b^2 +4c =9 =>5^2 +4c=9 => c=-4.
c.vertex (3;-3)
=3 => b =6
= =-3 =>-b^2+4ac=12 => c=-12.
Answer:
16
Step-by-step explanation:
Always do multiplication first:
6*4 = 24
(-2)(4) = -8
Note: A negative times a positive always equals a negative
After multipying, do addition:
24+ (-8) = 24-8 = 16