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3 years ago

Which point (x,y) is a solution to the system of linear equations?

Mathematics

1 answer:

alukav5142 [94]3 years ago

5 0

You need to post the two equations that make up the “system”

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How many minutes are there in 4 4 1 2 hours?

nataly862011 [7]

255 minutes

we know that 

1 hour = 60 minutes

then according to unitary method

4*1/4 hours = 17/4*60

= 255 minutes

hope it helps

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3 years ago

Read 2 more answers

Intel computer pays an annual dividend of $1.39 per share. The current price

KengaRu [80]

Answer:

2.2 %

Step-by-step explanation:

1.39 / 64.51 = 0.02154...

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3 years ago

Find the value of x in the following parallelogram: 2x - 5 X + 10 x = [?]

Lera25 [3.4K]

Answer:

Step-by-step explanation:

Opposite sides in a parallelogram are equal.

2x - 5 = x + 10

Subtract x and add 5 on both sides.

2x - x = 10 + 5

Combine like terms.

x = 15

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3 years ago

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I’ll give brainliest to whoever answers this question.

8090 [49]

Answer:

568 minutes were used

Step-by-step explanation:

95.16 - 27 = 68.16 ÷ 0.12 = 568 minutes

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3 years ago

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Construct a 95% confidence interval for the population mean, μ. Assume the population has a normal distribution. A random sample

GuDViN [60]

Answer: $(628.48,\ 661.52)$

Step-by-step explanation:

Given : Sample size : $n=16$ , which is a small sample (, 30) so we use t-test.

Sample mean : $\overline{x}=645 \text{ hours}$

Standard deviation : $\sigma = 31 \text{ hours}$

Significance level : $\alpha=1-0.95=0.05$

Critical value : $t_{n-1,\alpha/2}=2.131$

The confidence interval for population mean is given by :-

$\overline{x}\pm t_{n-1,\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\=645\pm(2.131)\dfrac{31}{\sqrt{16}}\\\\\approx645\pm16.52\\\\=(645-16.52,\ 645+16.52)\\\\=(628.48,\ 661.52)$

Hence, a 95% confidence interval for the population mean $\mu$ = $(628.48,\ 661.52)$

6 0

3 years ago