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kherson [118]
3 years ago
10

Evaluate 8x-y2-3 when x = -1/4 and y=3plz help

Mathematics
1 answer:
UkoKoshka [18]3 years ago
6 0

Answer:

-14

Step-by-step explanation:

8x-y²-3

8(-1/4) - (3)² - 3

-2 - (9) - 3

= -14

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Paul plans to buy a movie that has a regular price of $12.99. It is on sale for 15% off, but Paul will have to pay 7% sales tax.
Rus_ich [418]

Answer:

I got 11.814405

Step-by-step explanation:

12.99 times .85 then multiply by 1.07

5 0
3 years ago
A shirt with marked price Rs 1000 was sold to a customer for Rs 900. find the percentage of decrease
snow_tiger [21]

Answer:

10%

Step-by-step explanation:

Marked price of the shirt = Rs 1000

Sale price = Rs 900

Decease = (1000 - 900) Rs

= Rs 100

% decrease = decrease /marked price x 100%

That’s 100/1000 x 100%

0.1 x 100

10%

8 0
3 years ago
Which of the following is equivalent to x^5y^2/xy^2 when x is not equal to 0 and y is not equal to 0
vichka [17]

x^5y^2/xy^2

= x^5-1 * y^2-2

= x^4

6 0
2 years ago
I’ve been stuck on this for a while please help
vodomira [7]
Where’s the picture?
3 0
3 years ago
The issue of corporate tax reform has been cause for much debate in the United States. Among those in the legislature, 27% are R
Ilia_Sergeevich [38]

Answer:

The probability Democrat is selected given that this member favors some type of corporate tax reform is 0.6309.

Step-by-step explanation:

Let us suppose that,

R = Republicans

D = Democrats

I = Independents.

X = a member favors some type of corporate tax reform.

The information provided is:

P (R) = 0.27

P (D) = 0.56

P (I) = 0.17

P (X|R) = 0.34

P (X|D) = 0.41

P (X|I) = 0.25.

Compute the probability that a randomly selected member favors some type of corporate tax reform as follows:

P(X)=P(X|R)P(R)+P(X|D)P(D)+P(X|I)P(I)\\= (0.34\times0.27)+(0.41\times0.56)+(0.25\times0.17)\\=0.3639

The probability that a randomly selected member favors some type of corporate tax reform is P (X) = 0.3639.

Compute the probability Democrat is selected given that this member favors some type of corporate tax reform as follows:

P(D|X)=\frac{P(X|D)P(D)}{P(X)} =\frac{0.41\times0.56}{0.3639}=0.6309

Thus, the probability Democrat is selected given that this member favors some type of corporate tax reform is 0.6309.

5 0
3 years ago
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