Answer:
Step 1 should have a -2 substituted for both values.
Answer:
C
Step-by-step explanation:
The range is the values of y that extend from the vertex downwards
The vertex = (- 2, - 1) → y = - 1
range is (- ∞, - 1 ]
90% = 90/100
x/40=90/100 cross multiply
100x = 3600 divide by 100 on both sides
x=36
Max needs to get at least 36 questions correct to earn a 90&
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Answer:
5x^2-12x+7
Step-by-step explanation:
7x^2-5x+3-(2x^2 + 7X - 4)
Distribute the minus sign
7x^2-5x+3 - 2x^2 - 7X + 4
Combine like terms
5x^2-12x+7
