All categories

3 years ago

1See image below. Pls help me

Mathematics

1 answer:

s2008m [1.1K]3 years ago

7 0

Your answer would be 108 surface area

You might be interested in

A number is chosen at random from 1 to 10. Find the probability of selecting factors of 4 and factors

Lena [83]

The ANWSER is 2/4 I hope I helped

8 0

3 years ago

What is the value of -33 over 9+2

Nataly [62]

Answer:

Step-by-step explanation:

+ 2

1 2 3 4 5 6 7 8 9 10 11

what the- to easy bro

7 0

2 years ago

Tyler needs at least $205 for a new video game system. he has already saved $30. he earns 7$ an hour at his job. write and solve

posledela

Answer: 25 hours is the answer

4 0

2 years ago

Read 2 more answers

An equilateral ∆ has sides of length 16 cm. Find the length of an altitude.

inn [45]

The length of the altitude is $8\sqrt{3}$

Explanation:

Let ABC be an equilateral triangle.

It has sides of length 16 cm

Let AD be the altitude of the triangle.

We need to determine the length of an altitude.

Let AC = 16 cm and CD = 8 cm

Let us consider the right angled triangle ADC

Using the Pythagorean theorem, we have,

$AC^2=AD^2+DC^2$

Substituting the values, we get,

$16^2=AD^2+8^2$

$256=AD^2+64$

$192=AD^2$

$8\sqrt{3}=AD$

The length of the altitude is $8\sqrt{3}$

5 0

3 years ago

The average monthly cell phone bill was reported to be $50.07 by the U.S. Wireless Industry. Random Sampling of a large cell pho

zalisa [80]

Answer:

The null and alternative hypotheses are:

$H_{0}:\mu= 50.07$

$H_{a}:\mu>50.07$

Under the null hypothesis, the test statistic is:

$t=\frac{\bar{x}-\mu}{\frac{s}{\sqrt{n}} }$

Where:

$\bar{x} = 52.86$ is the sample mean

$s=7.0132$ is the sample standard deviation

$n=10$ is the sample size

$\therefore t=\frac{52.86-50.07}{\frac{7.0132}{\sqrt{10}} }$

$=1.26$

Now, the right tailed t critical value at 0.05 significance level for df = n-1 = 10-1 = 9 is:

$t_{critical}=1.833$

Since the t statistic is less than the t critical value at 0.05 significance level, therefore,we fail to reject the null hypothesis and conclude that there is not sufficient evidence to support the claim that the average phone bill has increased.

4 0

3 years ago