Hey there!
The 3 games cost $14.99 each, so multiply to find the cost of the three combined without the tax (the subtotal).
14.99 × 3 = 44.97
To find the amount of tax she will have to pay, we must find 7% of 44.97, the price without the tax added to it (the subtotal).
100% = 1.0
7% = 0.07
Multiply 44.97 by 0.07 for the amount of tax.
44.97 × 0.07 = 3.1479
Add the tax to the cost of the games without tax (subtotal).
44.97 + 3.1479 = 48.1179
Round the amount to the nearest cent. The thousandths place is 7, so it gets rounded up.
The total she has to pay for the games is $48.12.
Hope this helps!
Answer:
Step-by-step explanation:
Given that a part of a study of the treatment of anemia in cattle, researchers measured the concentration of selenium in the blood of 36 cows who had been given a dietary supplement of selenium (2 mg/day) for one year.
If x is the selenium concentration then
X has mean= 6.21 mg/dl
and std dev = 1.84
Sample size n = 36
std error of sample = 
Margin of error for 95%
Confidence interval = 
Answer: y = 2x^4
The graph represents a parabolic-looking shape so it's either a quadratic or some even degree polynomial. This rules out y = -2x^3 and y = 2x^3 as they are cubics with odd degrees
The degree of a polynomial is the largest exponent. It determines the end behavior. In this case, both ends are rising upward together. Because they are rising up in the positive y direction, this means that we cannot have y = -2x^4 as the answer. For example, if x = 2 then y = -2*x^4 = -2*2^4 = -32, but the point (x,y) = (2,-32) isn't on the blue curve. So we can rule y = -2x^4 out.
The fact that y = 2x^4 has a positive leading coefficient tells us that the endpoints point upward.
On the first on it is the first answer and the last one.
second: the second and the third one.
N - the number
14 + n = 17 |subtract 14 from both sides
n = 3
