Answer:187.2
Step-by-step explanation:
Actual price $390
After 60% discount price will be 156
And Sales tax is 8% . Then the price of sales tax is $31.2.
156+31.2= $187.2
Simplified: x^3+5x^2-2x+1
in standard form: x^3+5x^2-2x+1
12 girls for every 5 boys
boys is second so it shouldb be indenomenaotr (bottom)
girls/boys
12girls/5boys=2.4girls/boy
answer is B
Answer: one cup of milk contains 300 mg of calcium
Step-by-step explanation:
25% of 1200 is 300
Answer:
x ∈ {-5, -1}
Step-by-step explanation:
Here's the solution using the quadratic formula:

The real zeros are -5 and -1.
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There are many ways to check your answer. One of them is to look at the given quadratic, which has no changes of sign in its coefficients. (They are all positive.) That means there can be no positive real roots, so already you know that x=0.5 won't work.
Also, the constant in the quadratic is the product of the roots, For your roots, their product is -7/4, so even multiplying by 4 (the leading coefficient in the given quadratic), you don't get anything like 20.