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alexandr1967 [171]
3 years ago
6

Determine the x- and y-

Mathematics
1 answer:
rjkz [21]3 years ago
3 0
Answer and working out attached, hope this helps

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Simplify 7/10 x 1/3 x 2/3
Zinaida [17]
The answer is A. Because you divide first and then multiply and divide again.
5 0
2 years ago
A square city block has a side length of 563 yards what is the perimeter of the block<br> Block
olga nikolaevna [1]

Answer:

The perimeter is 2252 yards.

Step-by-step explanation:

In a square all sides are equal.

Side = 563 yards

Perimeter = 563 x 4 = 2252 yards.

7 0
3 years ago
According to the last census (2010), the mean number of people per household in the United States is LaTeX: \mu = 2.58 Assume a
Veseljchak [2.6K]

Answer:

P(2.50 < Xbar < 2.66) = 0.046

Step-by-step explanation:

We are given that Population Mean, \mu = 2.58 and Standard deviation, \sigma = 0.75

Also, a random sample (n) of 110 households is taken.

Let Xbar = sample mean household size

The z score probability distribution for sample mean is give by;

             Z = \frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } } ~ N(0,1)

So, probability that the sample mean household size is between 2.50 and 2.66 people = P(2.50 < Xbar < 2.66)

P(2.50 < Xbar < 2.66) = P(Xbar < 2.66) - P(Xbar \leq 2.50)

P(Xbar < 2.66) = P( \frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } } < \frac{2.66-2.78}{\frac{0.75}{\sqrt{110} } } ) = P(Z < -1.68) = 1 - P(Z  1.68)

                                                              = 1 - 0.95352 = 0.04648

P(Xbar \leq 2.50) = P( \frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } } \leq \frac{2.50-2.78}{\frac{0.75}{\sqrt{110} } }  ) = P(Z \leq  -3.92) = 1 - P(Z < 3.92)

                                                              = 1 - 0.99996 = 0.00004  

Therefore, P(2.50 < Xbar < 2.66) = 0.04648 - 0.00004 = 0.046

7 0
3 years ago
Which number is divisible by 5 <br> A 44<br> B 125<br> C 116<br> D 114
Ray Of Light [21]

Answer:

B

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What number must you add to complete the square?<br><br> x^2-10x=46
gtnhenbr [62]
X² - 10x = 46
10/2 = 5; 5²+ 25 add 25 to both sides

x² - 10x + 25 = 46 + 25

so the number you have to add to complete the square is 25.
5 0
3 years ago
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