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natali 33 [55]
2 years ago
7

Which of the following is a solution to the system of two equations y = 3x – 1 and y = 2x + 3?

Mathematics
1 answer:
NeTakaya2 years ago
4 0
Point form: (4,11)
equation form: x=4 y=11
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Ellen bought 3 greeting cards for $3 each.
Ne4ueva [31]

Answer:

(3×3)+2=11

$11

Step-by-step explanation:


5 0
3 years ago
The Paralyzed Veterans of America is a philanthropic organization that relies on contributions. They send free mailing labels an
lions [1.4K]

Answer:

Confidence interval:  (0.04649,0.04913)

Step-by-step explanation:

We are given the following in the question:

Sample size, n =  100,000

Number of people who donated, x = 4781

\hat{p} = \dfrac{x}{n} = \dfrac{4781}{100000} = 0.04781


95% Confidence interval:

\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

Putting the values, we get:

0.04781
\pm 1.96(\sqrt{\dfrac{0.04781
(1-0.04781
)}{100000}})\\\\=0.04781
\pm 0.00132\\\\=(0.04649,0.04913)

is the required 95% confidence interval  for the true proportion of their entire mailing list who may donate.

3 0
3 years ago
True or False. When flipping a penny 14 times the penny likelihood of landing on heads is 7 times.
Elenna [48]

Answer:

True

Step-by-step explanation:

Since a penny has head and tails, each has 1/2 chance to land on heads or tales, so 14*1/2=7, so true.

5 0
2 years ago
I will give Brainliest
ioda

Answer:

The volume(V) of gas will increase when the pressure of the gas decreases assuming all the other variables are held constant.

Step-by-step explanation:

 P = Pressure of the ideal gas

            V = Volume of the ideal gas

            n = Moles of the ideal gas

            R = Universal gas constant

            T = Temperature of the ideal gas

4 0
3 years ago
Read 2 more answers
ANSWER THIS PLEASE I NEED TO GET MY SLEEP I FORGOT ​
alisha [4.7K]

Answer:

x=0.2

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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