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3 years ago

15

5u − –20u − u − 18u + –11u = 10 HURRRY PLEEEEESEEEE I ONLY HAVE 4 minutes left

1 answer:

drek231 [11]3 years ago

8 0

5u - (-20u) - u - 18u + (-11u) = 10
5u + 20u - u - 18u - 11u = 10
-5u = 10
-5(-2) = 10

So, in conclusion, X, is equal to -2.

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The following data points represent the diagonal length (in centimeters) of each television at Electronic Emporium.

Dovator [93]

Answer:

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Step-by-step explanation:

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3 years ago

How to show work for 1634 divided by 19

pickupchik [31]

19/1634
Answer = 86
To get this, simply align the paper by putting 19 on the outside of the division box and 1,634 on the inside of the division box, then, decipher whether 19 can go into 16 (It cannot), so, you would have to divide 19 into the number 163. After doing this, put the sum of 19 divided by 163 on top of the division box and divide 40 into 19. After adding the sum on top the the division box to sum of 40 divided by 19, you should get your final answer, which is of course, 86.

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3 years ago

Read 2 more answers

Bottles filled by a certain machine are supposed to contain 12 oz of liquid. In fact the fill volume is random with mean 12.01 o

Irina-Kira [14]

Answer:

a

$P(X < 12) = 0.3660$

b

$P(X < 12) = 0.1521$

Step-by-step explanation:

Considering question a

From the question we are told that

The mean is $\mu = 12.01 \ oz$

The standard deviation is $\sigma = 0.35 \ oz$

The standard error of mean is mathematically represented as

$\sigma_{x} = \frac{\sigma}{\sqrt{n} }$

=> $\sigma_{x} = \frac{0.35}{\sqrt{144} }$

=> $\sigma_{x} = 0.02917$

Generally the probability that the mean volume of a random sample of 144 bottles is less than 12 oz is mathematically represented as

$P(X < 12) = P(\frac{X - \mu }{\sigma_{x}} < \frac{12 - 12.01 }{0.02917 } )$

$\frac{X -\mu}{\sigma_{x} } = Z (The \ standardized \ value\ of \ X )$

$P(X < 12) = P(Z < -0.3425 )$

From the z table the area under the normal curve to the left corresponding to -0.3425 is

$P(X < 12) = P(Z < -0.3425 ) = 0.3660$

=> $P(X < 12) = 0.3660$

Considering question a

From the question we are told that

The mean is $\mu = 12.03 \ oz$

Generally the probability that the mean volume of a random sample of 144 bottles is less than 12 oz is mathematically represented as

$P(X < 12) = P(\frac{X - \mu }{\sigma_{x}} < \frac{12 - 12.03 }{0.02917 } )$

$P(X < 12) = P(Z < -1.0274 )$

From the z table the area under the normal curve to the left corresponding to -1.0274 is

$P(X < 12) = P(Z < -1.0274 ) =0.1521$

=> $P(X < 12) = 0.1521$

3 0

3 years ago

Han earns $33.00 for babysitting for 4 hours. At this rate, how much will he earn if he babysits for 7 hours? Explain your reaso

Alika [10]

Answer:

Han will earn $57.75 in 7 hours.

Given the statement " Han earns $33.00 for babysitting for 4 hours".

Hourly rate states rate an employer agrees to pay a worker per hour worked.

The hourly rate = $\frac{33}{4}$ = $ 8.25

so, the hourly rate is $8.25

If he earns $8.25 every hour,

then,

he will earn in 7 hours = $\$ 8.25 \times 7 = \$ 57.75$

Therefore, Han will earn in 7 hours is, $ 57.75

8 0

3 years ago

Simplify. Express your answer as a single term using exponents. 6689x 6689

Kamila [148]

Answer:

(6689)^2

Step-by-step explanation:

6689x 6689

There are 2 terms multiplied together and they are identical

a*a = a^2

6689x 6689 = (6689)^2

8 0

3 years ago