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2 years ago

9

How do you describe the solution set to a system of linear inequalities?

1 answer:

Tatiana [17]2 years ago

6 0

Answer:

How do you describe the solution set to a system of linear inequalities?

Step-by-step explanation:

The solutions of a system of linear inequalities are all the ordered pairs that make all the inequalities in the system true.

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Give a description of a 3/4- turn of the minute hand on a clock face.

Rom4ik [11]

If the minute hand has turned 3/4 of the way around the face, it is equal to 45 minutes. (45/60)

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4 years ago

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Please answer this multiple choice question for 30 points and brainliest!!

mixer [17]

Answer:

B. s = 0.85r

Step-by-step explanation:

The sale price is 15% off the regular price. In equation form, that is ...

s = r - 15%×r

s = r(1 - 0.15) = 0.85r

The equation that can be used to calculate the sale price is <em>s = 0.85r</em>.

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3 years ago

Which is a factor of 6x2y + 8x2 − 30y − 40?

sweet-ann [11.9K]

<span>6x^2y + 8x^2 − 30y − 40
= 2x^2(3y + 4) - 10(3y + 4)
= (2x^2 - 10)(3y + 4)
= 2(x^2 - 5)(3y + 4)</span>

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3 years ago

A certain change in a process for manufacture of component parts is being considered. Samples are taken using both the existing

Katyanochek1 [597]

Answer:

a) The confidence interval is $0.00\leq\pi_1-\pi_2\leq0.02$ .

Step-by-step explanation:

We have to calculate a confidence interval (CI) of a difference of proportions.

For the existing procedure, the proportion is:

$p_1=75/1500=0.05$

For the new procedure, the proportion is:

$p_2=80/2000=0.04$

To calculate the CI, we need to estimate the standard deviation

$s=\sqrt{\frac{p_1(1-p_1)}{n_1} +\frac{p_2(1-p_2)}{n_2} }\\\\s=\sqrt{\frac{0.05(1-0.05)}{1500} +\frac{0.04(1-0.04)}{2000} }=\sqrt{ 0.000032 + 0.000019 }=\sqrt{ 0.000051 }\\\\s=0.007$

For a 90% CI, the z-value is 1.64.

Then, the CI is:

$(p_1-p_2)-z*\sigma \leq\pi_1-\pi_2\leq(p_1-p_2)+z*\sigma \\\\(0.05-0.04)-1.64*0.007\leq\pi_1-\pi_2\leq(0.05-0.04)+1.64*0.007\\\\0.01-0.01\leq\pi_1-\pi_2\leq0.01+0.01\\\\0.00\leq\pi_1-\pi_2\leq0.02$

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3 years ago

Pls hurry I’m being timed

nevsk [136]

Answer:

b

Step-by-step explanation:

I hope this helps and have a nice day

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3 years ago

Read 2 more answers