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2 years ago

Graph the compound inequality on the number line.

Mathematics

1 answer:

taurus [48]2 years ago

7 0

Answer:

(closed circle on 6)————>

<—————(open circle on -1)

Step-by-step explanation:

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4d + 5 >= 13 or 7d - 2 <12

vivado [14]

I'm guessing that the >= is a greater than or equal to sign, so the answer should be d>=2 and d<2, please tell me if I am wrong and I will do my best to correct it!

6 0

3 years ago

Simplify (3n – 2m)2 = ?

Bumek [7]

If you mean (3n-2m)^2 then the answer is
9n^2-12mn+4m^2
So B

4 0

3 years ago

The claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.30, and the sample statistics

IrinaK [193]

Answer: 0.84

Step-by-step explanation:

let p be the population proportion of adults who smoked a cigarette in the past week.

As per given , we have

$H_a: p$

Sample size : n= 1491

The sample proportion of adults smoked a cigarette= $\hat{p}=\dfrac{x}{n}=\dfrac{462}{1491}=0.30985915493\approx0.31$

The test statistic for proportion is given by :-

$z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

Substitute all the values , we get

$z=\dfrac{0.31-0.30}{\sqrt{\dfrac{0.30(1-0.30)}{1491}}}\\\\=\dfrac{0.01}{\sqrt{0.000141}}\\\\=\dfrac{0.01}{0.011874342087}=0.84261497731\approx0.84$

Hence, the value of the test statistic = 0.84

6 0

3 years ago

Karl's car went 550 miles on 33 gallons of gas. Which equation does NOT give the correct unit rate, x, in miles per gallon for K

jekas [21]

Answer:

x = 550 ÷ 33

what are the answer choises

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Which of the following shows the true solution to the logarithmic equation solved below?

Vladimir [108]

A. x(x+7)=23 us the correct answer i believe

4 0

2 years ago

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