In the diagram the figures are similar. What is x

Mathematics

2 answers:

PIT_PIT [208]2 years ago

8 0

I can't see the length very well. I think it's 8 so I'll work with that.
If the figures are similar, then their sides are proportional.
Set up the proportion 8 is to 7 as x is to 3.
8/7 = x/3
Multiply the means and extremes.
7x = 24
x = 3.4

The correct answer is B. 3.4

Hope this helps =)

Ket [755]2 years ago

6 0

I think its is B. i hope you got the answer right

You might be interested in

A grocer has two kinds of candies: one sells for 90 cents per pound and the other sells for 40 cents per pound. How many pounds

Vladimir [108]

$100(.85)=x(.9)+(100-x)(.4)$
$85=.9x+40-.4x$
$45=.5x$
$x=90$

Thus 90lbs of the 90 cent and 10lbs of the 40 cent.

3 0

2 years ago

Passing through 1,-4 and -2,5

Nataly_w [17]

Answer:

If you are looking for the slope-intercept equation, it's y=−3x−1. Hope you have a great rest of the day and stay safe, be kind, and go beyond Plus Ultra!

4 0

2 years ago

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).