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3 years ago

Select all the expressions that have a value of 40 when x = 10.8.

Mathematics

2 answers:

natta225 [31]3 years ago

5 0

Answer:

Step-by-step explanation:

B. =16x+288x

C. = 1 18 x2+33.52

1752

−

162

−162

x+1752

6(−27x+8468)

29x

−162x+50808

29x

F.=

x+36

slavikrds [6]3 years ago

4 0

Answer:

Step-by-step explanation:

We have that:

x=10.8

x +29.2=40

because

10.8+29.2=40

Another possible expression is

50.8 - x =40

This is so, because:

50.8 -10.8 =40

Another one is:

2x+18.4=40

This is so because:

2*10.8+18.4=40

So, all you need to do is to substitute 10.8 for x in the given expression,

If the solution equates to 40, then that's your answer

i might be wrong im sorry if i am

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2 years ago

Please help I need it now please and thank you

Bingel [31]

Answer:

It would be the first one or second one

Step-by-step explanation:

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2 years ago

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A Rasmussen Reports survey of 1,000 US adults found that 42% believe raising the minimum wage will help the economy. Construct a

vitfil [10]

Answer:

(0.3798, 0.4602)

Step-by-step explanation:

Let p be the true proportion of US adults who believe raising the minimum wage will help the economy. A point estimate for p is $\hat{p}=0.42$ and a good aproximation (because we have a large sample) for the standard deviation of $\hat{p}$ is $\sqrt{\hat{p}(1-\hat{p})/n}=\sqrt{0.42(0.58)/1000}=0.0156$ . Therefore, a 99% confidence interval for p is given by $\hat{p}\pm z_{\alpha/2}\sqrt{\frac{\hat{p}(1-\hat{p})}{n}}$ where $\alpha=0.01$ and $z_{\alpha/2}$ is the $\alpha/2$ th quantile of the standard normal distribution, so we have, $0.42\pm z_{0.005}0.0156$ , i.e., $0.42\pm(-2.5758)(0.0156)$ or equivalently (0.3798, 0.4602).