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2 years ago

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