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3 years ago

5

The results of the first 100 students who voted are represented in the table. There are still 50 more students left to vote. Bas

ed on the early results, how many MORE votes do you expect Dan to get out of the 50 late voters?

1 answer:

Volgvan3 years ago

5 0

Answer:

1-50

Step-by-step explanation:

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What is the product of 2.17 and 1.5

Lunna [17]

Answer:

3.255 or 3.67

Step-by-step explanation:

MATHS -_-

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3 years ago

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A consumer electronics company is comparing the brightness of two different types of picture tubes for use in its television set

puteri [66]

Answer:

The answer is "0.7794".

Step-by-step explanation:

Please find the complete question in the attached file.

Given:

$\to n_{1}=n_{2}=25\\\\$

Hypotheses:

$\to H_{0}:\mu_{B}-\mu_{A}\geq 0\\\\\to H_{a}:\mu_{B}-\mu_{A}< 0\\\\$

Testing statistics:

$\to z=\frac{(\bar{x}_{B}-\bar{x}_{A})-(\mu_{B}-\mu_{A})}{\sqrt{\frac{\sigma^{2}_{B}}{n_{1}}+\frac{\sigma^{2}_{A}}{n_{2}}}}=\frac{3.5-(0)}{\sqrt{\frac{16^{2}}{25}+\frac{16^{2}}{25}}}=0.77$

The test is done just so the p-value of a test is

$\to p-value = P(z < 0.77) = 0.7794$

Because the p-value of the management is large, type B can take it.

5 0

3 years ago

Type the correct answer in the box. Use numerals instead of words.

Pani-rosa [81]

Answer:

Step-by-step explanation:

$7- \sqrt[3]{2-x} =12$

we have to just keep in mind to do the same operation to both sides of the equal sign

$7-7- \sqrt[3]{2-x} =12-7$ ; subtract 7 from both sides

$- \sqrt[3]{2-x} = 5$ ; multiply both sides by -1

$\sqrt[3]{2-x} = -5$ ; raise both sides to the power 3

2-x = (-5)³

2-x = -125 ; subtract 2 from both sides

-x = -125-2

-x =-127; multiply both sides by -1

x= 127

8 0

3 years ago

What mathematical relationship between variables is suggested by a graph showing a diagonal line from the lower left to the uppe

monitta

you can see the distance between the intervals in the graph more easily because you can see how far the plots are away from each other by connecting the w/ lines. Ex you had 5 on a graph and you had 12 after it there is an interval of 8 in between so you can visually see how far apart the numbers area simple 2d xy line graph has only the possibility for 2 different variables (x and y).. for a 3 variable graph you would have to go into a 3d xyz graph with each variable as x, y and z. it is possible to fit a line to this but for an easier analysis it is better to analyse the variables in pairs. Hope this helps.

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3 years ago

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Complete the square 2x2- 12x+ 26 = 10

Mariana [72]

$2x^2-12x+26=10\ \ \ | subtract\ 10\\\\
2x^2-12x+16=0\ \ \ | divide\ by\ 2\\\\
x^2-6x+8=0\\\\
put\ into\ form:\ (x+d)^2+c=0\\
-6x=2xd\ \ \ | divide\ by\ x\\
d=-3\\
8=d^2+c\\
8=9+c\ \ \ | subtract\ 9\\
c=-1\\\\
After\ completing\ the\ square:\\
(x-3)^2-1=0$

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3 years ago