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bearhunter [10]
3 years ago
5

SOMEONE ANSWER PLEASE!!

Mathematics
1 answer:
Nataly [62]3 years ago
7 0
The answer is 12ofer35 like 12/35
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Mrs. Chesney bought 3 games at a cost of $14.99 each. What will she pay including 7% sales tax
max2010maxim [7]

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!

5 0
4 years ago
As part of a study of the treatment of anemia in cattle, researchers measured the concentration of selenium in the blood of 36 c
iris [78.8K]

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 = \frac{1.84}{\sqrt{36} } \\=0.307

Margin of error for 95%

1.96(0.307)=0.602

Confidence interval = (6.21-0.605, 6.21+0.605)\\= (5.605, 6.815)

4 0
3 years ago
What function is graphed below?
lidiya [134]

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.  

4 0
3 years ago
Which ones are they tell me all that apply?
Lelechka [254]

On the first on it is the first answer and the last one.

second: the second and the third one.

5 0
3 years ago
What's the sum of 14 and a number is equal to 17
horrorfan [7]
N - the number

14 + n = 17    |subtract 14 from both sides

n = 3
7 0
3 years ago
Read 2 more answers
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