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ss7ja [257]
3 years ago
9

The surface area of the prism is 298 square feet. Find the value of x

Mathematics
1 answer:
dedylja [7]3 years ago
6 0

Answer:

We can make an equation

2 * 7x + 2 * 4x + 2 * 4 * 7 = 298

14x + 8x + 56 = 298

22x = 298 - 56

22x = 242

x = 242/22

x = 11

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AnnyKZ [126]
10. 20/2 = 10
30/3=10
40/4=10

Y=10x
5 0
3 years ago
Can someone help me please ASAP?
PtichkaEL [24]

Answer:

the answer is the right because it has the least negative so its 0. the left is -2 which is less then zero.

Step-by-step explanation:

5 0
4 years ago
The class scores of a history test have a normal distribution with a mean Mu = 79 and a standard deviation Sigma = 7. If Opal’s
storchak [24]

The value of z score for the history class test of Opal’s test score is negative one (-1).

<h3>What is normally distributed data?</h3>

Normally distributed data is the distribution of probability which is symmetric about the mean.

The mean of the data is the average value of the given data. The standard deviation of the data is the half of the difference of the highest value and mean of the data set.

The z score for the normal distributed data can be given as,

Z=\dfrac{X-\mu}{\sigma}

The mean value of the scores of history class is,

\mu=79

The standard deviation value of the scores of history class is,

\sigma=7

Here, the test score of the Opal’s is 72. Thus the z score for her test score can be given as,

z=\dfrac{72-79}{7}\\z=-1

Hence, the value of z score for the history class test of Opal’s test score is negative one (-1).

Learn more about the normally distributed data here;

brainly.com/question/6587992

6 0
3 years ago
Need help with this pls<br> (Show work pls!!)
ICE Princess25 [194]

Answer:

Given below

Step-by-step explanation:

M is Mikey and B is Betty in,

Current ages:

M= x

B= 3x (cuz she is 3 times older)

After 5 years

M= x+5

B= 3x+5 (5 years added to present age)

It says the ages of Betty after 5 years (3x+5) will be twice as much as Mikey (2(X+5))

So,

3x+5 = 2(x+5)

3x+5 = 2x+10

3x -2x = 10-5

x = 5

Therefore,

The current ages are

Betty : 3x = 3*5 = 15

Mikey: 5 (x)

You can verify by checking with the criterias or clues given in the question.. hope this helps..mark as brainiest if this was helpful:)

7 0
3 years ago
Which of the following is equal to 49x2−81?
Tema [17]

Answer:

2

Step-by-step explanation:

8 0
3 years ago
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