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VikaD [51]
3 years ago
6

1 and 2 pls help me with these math problems.........

Mathematics
1 answer:
jeka57 [31]3 years ago
6 0
1. y=4x

2. (I am not able to graph it, but here are some points on the line.)
    (0,3) (3,6) (5,8) those three should get you to graph a line. When you have these types of problems, make a table. plug in random numbers, that are reasonable, usually 1-6, and plug them into the equation and enter your new y values, then graph the ordered pairs and connect them.
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How much is 25 pens for $19.75.
Scilla [17]

Answer:

$493.75

Step-by-step explanation:

  1. 25 × 19.75 = $493.75

I hope this helps!

6 0
3 years ago
Read 2 more answers
Describe the sampling distribution of p(hat). Assume the size of the population is 30,000.
Naya [18.7K]

Answer:

a) \mathbf{\mu_ \hat p = 0.6}

b) \mathbf{\sigma_p =0.01732}

Step-by-step explanation:

Given that:

population mean \mu = 30,000

sample size n = 800

population proportion p = 0.6

a)

The mean of the the sampling distribution is equal to the population proportion.

\mu_ \hat p =  p

\mathbf{\mu_ \hat p = 0.6}

b)

The standard deviation of the sampling distribution can be estimated by using the formula:

\sigma_p = \sqrt{\dfrac{p(1-p)}{n}}

\sigma_p = \sqrt{\dfrac{0.6(1-0.6)}{800}}

\sigma_p = \sqrt{\dfrac{0.6(0.4)}{800}}

\sigma_p = \sqrt{\dfrac{0.24}{800}}

\sigma_p = \sqrt{3 \times 10^{-4}}

\mathbf{\sigma_p =0.01732}

7 0
3 years ago
Travis bought 8 new books for $7.99 each. How much did he spend on books?
Otrada [13]

Answer:

$63.92

Step-by-step explanation:

5 0
3 years ago
How do you solve 3 1/2- 2 2/5
Veseljchak [2.6K]
You would first have to find common denominators for the fractions. In this case it would be 10. So your new equation would be 3 5/10 - 2 4/10. Once you do this you can then subtract and solve getting the answer of 1 1/10
5 0
3 years ago
Make a ten to add.<br> 3+7+9=
andre [41]
You can add 7+3 then add 9 ad you get 19
7 0
3 years ago
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