Use <, >, or = to compare the following numbers.

A meteorologist sends a signal from a radar station that stands 45 feet off the ground. The signal measures the distance to be 1

IrinaVladis [17]

Answer:

3485 ft

Step-by-step explanation:

The height above the radar station is found using ...

height = distance × sin(angle)

height = (4200 ft) × sin(55°) ≈ 3440 ft

Since the radar station is 45 ft above the ground, the height of the clouds will be an additional 45 ft:

3440 ft + 45 ft = 3485 ft . . . . height of clouds

_____

<em>Comment on units</em>

You need to be a bit careful here because one dimension is given in feet and another in yards. You need to use 1 yard = 3 feet to figure that 1400 yards = 4200 feet. You could convert 45 ft to 15 yards and report the cloud height in yards. That would not be wrong, but it would be unusual.

7 0

3 years ago

Which symbol can be used to correctly compare the two fractions? Use > , < , or =. Enter your answer in the box. 75100 34

Bad White [126]

75100 > 34

75100 is greater than 34

4 0

3 years ago

Find the area of the circle to the nearest tenth use 3.14 for pie. If the circle measures 4.4mm

Nata [24]

13.816 tht your answer

7 0

3 years ago

A simple random sample of size n=250 individuals who are currently employed is

Likurg_2 [28]

Answer:

$0.104 - 2.58\sqrt{\frac{0.104(1-0.104)}{250}}=0.054$

$0.104 + 2.58\sqrt{\frac{0.104(1-0.104)}{250}}=0.154$

The 99% confidence interval would be given by (0.054;0.154) . So we are confident at 99% that the true proportion of people that they did work at home at least once per week is between 0.054 and 0.154

Step-by-step explanation:

For this case we can estimate the population proportion of people that they did work at home at least once per week with this formula:

$\hat p = \frac{X}{n}= \frac{26}{250}= 0.104$

We need to find the critical value using the normal standard distribution the z distribution. Since our condifence interval is at 99%, our significance level would be given by $\alpha=1-0.99=0.01$ and $\alpha/2 =0.005$ . And the critical value would be given by:

$z_{\alpha/2}=-2.58, z_{1-\alpha/2}=2.58$

The confidence interval for the mean is given by the following formula:

$\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}$

If we replace the values obtained we got:

$0.104 - 2.58\sqrt{\frac{0.104(1-0.104)}{250}}=0.054$

$0.104 + 2.58\sqrt{\frac{0.104(1-0.104)}{250}}=0.154$

The 99% confidence interval would be given by (0.054;0.154) . So we are confident at 99% that the true proportion of people that they did work at home at least once per week is between 0.054 and 0.154

3 0

3 years ago

A zoo charges $8 for adults and $6 for children, the zoo sold 200 tickets and collected $1,340 how many of each type of ticket w

Marta_Voda [28]

Answer: x=161.

Step-by-step explanation:

7 0

3 years ago