Find surface area of the prism. Thanks.

slega [8]

Using x as the number of adult tickets sold
If 3x as many student tickets were sold as adults
--> the number of student tickets is 3x

If the total tickets is 572 and made up of 3x and x

This equation represents the relation ship
Total = 572
number of adult tickets + number of student tickets = 572
x + 3x = 572

When solving for x, we will find the number of adult tickets
x+3x =572
4x=572
x= 572/4
x= 143

143 adult tickets were sold

8 0

3 years ago

896, -448, 224, -112 next in the sequence

faltersainse [42]

56, you are dividing by -2 each time

4 0

3 years ago

Recall that the perimeter of a figure such as the one to the right is the sum of the length of its sides. Find the perimeter of

wolverine [178]

Answer:

72z+176

Step-by-step explanation:

36z+28+8z+40+12z+60+48+16z=

36z+8z+12z+16z+28+40+60+48=

72z+176

5 0

2 years ago

In a study of 259 comma 995 cell phone users, it was found that 121 developed cancer of the brain or nervous system. Assuming t

IRISSAK [1]

Answer:

The probability of having 121 cases or less is:

$P(X$

This suggests that the study does not show any significantly effect of the use of cell phone in the probability of having brain or nervous system cancer. The use of cell phone does not appear to be a significant factor in the risk of having this type of cancer.

Step-by-step explanation:

We start by calculating the expected standard deviation of the population cases:

$\sigma=\sqrt{n\pi(1-\pi)}=\sqrt{259,995*0.000489*0.999514}\\\\\sigma=\sqrt{126.29}\\\\\sigma=11.24$

Then, to calculate the probability, we first calculate the z-score for 121 cases.

$z=\dfrac{X-\mu}{\sigma}=\dfrac{121-127}{11.24}=\dfrac{-6}{11.24}=-0.5338$

The probability of having 121 cases or less is:

$P(X$

This suggests that the study does not show any significantly effect of the use of cell phone in the probability of having brain or nervous system cancer. The use of cell phone does not appear to be a significant factor in the risk of having this type of cancer.

3 0

4 years ago

Evaluate the expression: 4,2030

Romashka [77]

Answer:

There is no such thing.

Step-by-step explanation:

Expression should be:

42,030.

Second expression should be:

4,203.0

Those are the expressions.

8 0

3 years ago