This is a quadratic equation, i.e. an equation involving a polynomial of degree 2. To solve them, you must rearrange them first, so that all terms are on the same side, so we get
i.e. now we're looking for the roots of the polynomial. To find them, we can use the following formula:
where is a compact way to indicate both solutions
and
, while
are the coefficients of the quadratic equation, i.e. we consider the polynomial
.
So, in your case, we have
Plug those values into the formula to get
So, the two solutions are
Needing help ASAP, use integers
1 answer:
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Answer:
Discount = 14.3% (rounded up to one decimal place)
Step-by-step explanation:
The regular price of an item is $84
Discount = $12
Percentage discount = (Discount ÷ regular price) × 100
Percentage discount = × 100 = 14.3% (rounded up to one decimal place)
Answer:
C) 6 inches
Step-by-step explanation:
Given function:
The function compares plant height in inches to the age of plant in weeks.
So, we can say
represents height of plant in inches.
represents age of the plant in weeks.
In order to predict the height of the plant in 5 weeks, we will plugin in the given function and evaluate
⇒
⇒
⇒ inches
Thus the approximate height of plant in 5 weeks would be inches