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prisoha [69]
3 years ago
11

18. When y = x?, which of the following expressions is equivalent to -y ?

Mathematics
1 answer:
vitfil [10]3 years ago
5 0

Answer:

-y=-x

The problem:

y=x then -y=?

Step-by-step explanation:

If y=x, then -y=-x.

Just like if u=9, then -u=-9.

Or, if -m=8, then m=-8.

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Korolek [52]
F(2y + 1) is 2


+
for this question
4 0
3 years ago
As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. If the true percenta
tresset_1 [31]

Answer:

The probability is 0.057797

Step-by-step explanation:

Consider the provided information.

It is given that true percentage of voters who vote for the proposition is 63%,

Let p is probability of success.

According to the binomial distribution:

P(x;p,n)=^nC_x(p)^x(1-p)^{(n-x)}

Substitute n=7, p=0.63 and x=2 in the above formula.

P(x;p,n)=^7C_2(0.63)^2(1-0.63)^{(7-2)}

P(x;p,n)=\frac{7!}{2!5!}(0.3969)(0.37)^{5}\\P(x;p,n)=21(0.3969)(0.37)^{5}\\P(x;p,n)=0.0577974947199\\P(x;p,n)\approx0.057797

Hence, the probability is 0.057797

8 0
3 years ago
What is the surface area of this right rectangular prism? Enter your answer as a
mixas84 [53]

You will find all of the surface area of all of the sides and add them together to find the surface area of the retangular prisim. So, what I would do is the front and back are both 54, so 108. The sides are 27, so 54. The top and bottom are 18, so 36. Add them together, and you will get 198. I hope this helps.

6 0
3 years ago
Help please asap!! no links please ​
Neporo4naja [7]

Answer:

A. 600

B. 565.2

C. 8000

D. 8125.376

Step-by-step explanation:

Rounding up from 500 is 600 (Nearest HUNDRED)

Rounded up from 565.234 is 565.2 (NEAREST TENTH)

Rounded down from 8125.3758 is 8000 (NEAREST THOUGHAND)

Rounded up from 8125.3758 is 8125.376 (NEAREST THOUSANDTH)

5 0
2 years ago
Read 2 more answers
Solve for x when, 8x-12=4x
barxatty [35]

Answer:

x=3

Step-by-step explanation:

8x - 12 = 4x add 12 to both sides you get 8x=4x+12 subtract 4x on both sides then you get 4x=12 divide 4x on both sides and x = 3 Hope helps!!

8x-12=4x

+12    +12

__________

8x=4x+12

-4x   -4x

_______-

4x=12

÷4  ÷4

______

x=3

Hope helps :3

4 0
2 years ago
Read 2 more answers
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