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SVEN [57.7K]
3 years ago
13

Which of the following is a polynomial A.x^2+2 B.(x^8-2)/(x^-2+3) C. 7x^7-2x^-4+3 D.x^x-1

Mathematics
1 answer:
EastWind [94]3 years ago
6 0
<span> A. x²+2   - a  polynomial
B.(x⁸-2)/(x⁻²+3)  rational function
C. 7x⁷-2x⁻⁴+3 (It has negative value of exponent, so it cannot be a polynomial.)
D.x^x-1 (x is an exponent it cannot be a polynomial)</span>
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A bowl contains 7 pennies, 9 nickels, and 4 dimes. Elyse removes one coin at random from the bowl and does not replace it. She t
Vlad [161]

Answer:

The probability is 3/95

Step-by-step explanation:

Okay this is a probability without replacement question.

Firstly we calculate the total number of coins = 7 + 9 + 4 = 20 coins

The probability that the first coin will be a dimes = number of dimes/total number of coins = 4/20 = 1/5

Now she removes a coin without replacement, if it was a dime, total number of coins becomes 19 and the total number of dimes becomes 3; Thus the probability of the second coins being a dimes = 3/19

Thus, the probability of both coins being dimes = probability of first coin being dimes * probability of second coins being dimes

= 1/5 * 3/19 = 3/95

6 0
3 years ago
Sundas made 2 out of her 5 shots she attempted. Find the percent of the shots she attempted.​
Rudik [331]

Answer:

<u>i think</u> it is 40%

Step-by-step explanation:

she made 2/5 shots so

2/5*2=4/10

i times it by 2 because its out of 100

4/10*10=40/100

then i times it by 10 to get to 100

(2/5 is not 2 divided by five it is 2 over 5 just incase u didnt know what i was talking about)

8 0
3 years ago
Find the amplitude and period of y = 5 cos (4x)
dezoksy [38]

Answer: amplitude is 5 and Period is pi/2

Step-by-step explanation:

yes ‍♀️

3 0
2 years ago
Juan ramirez sells suits in a major department store on weekends he Ernst a commission of 5 percent on the first ten suits and h
romanna [79]

Answer:

$185

Step-by-step explanation:

The first ten suits sold for 10×$250 = $2,500

commission = 5% of $2,500 = 0.05×$2,500 = $125

The next three suits sold for 3×$250 = $750

commission = 8% of $750 = 0.08×$750 = $60

Total commissions = $125+$60 = $185

There are several errors in the question. If you are using voice recognition, you are better off typing the question manually.

5 0
3 years ago
Can someone help me with this please
zavuch27 [327]

Answer:

8×

Step-by-step explanation:

you just add 7×+1 and the answer will be 8×

7 0
2 years ago
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