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Marrrta [24]
2 years ago
8

What is (6x+12)-(4x+17)

Mathematics
2 answers:
mr_godi [17]2 years ago
6 0

Answer:

(6x+12)-(4x+17)

=18x-21x

=3x (ans)

Step-by-step explanation:

Maslowich2 years ago
4 0

Equivalent expressions are expressions with equal values

The equivalent expression is 2x - 5

The expression is given as:

(6x+12)-(4x+17)

Remove the brackets

6x+12-4x-17

Collect like terms

6x-4x+12-17

Evaluate the like terms

2x - 5

Hence, the equivalent expression is 2x - 5

Read more about equivalent expressions at:

brainly.com/question/2972832

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In a recent survey of college professors, it was found that the average amount of money spent on entertainment each week was nor
Alenkinab [10]

Answer:

0.0918

Step-by-step explanation:

We know that the average amount of money spent on entertainment is normally distributed with mean=μ=95.25 and standard deviation=σ=27.32.

The mean and standard deviation of average spending of sample size 25 are

μxbar=μ=95.25

σxbar=σ/√n=27.32/√25=27.32/5=5.464.

So, the average spending of a sample of 25 randomly-selected professors is normally distributed with mean=μ=95.25 and standard deviation=σ=27.32.

The z-score associated with average spending $102.5

Z=[Xbar-μxbar]/σxbar

Z=[102.5-95.25]/5.464

Z=7.25/5.464

Z=1.3269=1.33

We have to find P(Xbar>102.5).

P(Xbar>102.5)=P(Z>1.33)

P(Xbar>102.5)=P(0<Z<∞)-P(0<Z<1.33)

P(Xbar>102.5)=0.5-0.4082

P(Xbar>102.5)=0.0918.

Thus, the probability that the average spending of a sample of 25 randomly-selected professors will exceed $102.5 is 0.0918.

5 0
3 years ago
How many calories are in a package of peanuts with 15 grams of protein
fredd [130]

Answer:

85.

Step-by-step explanation:

3 0
3 years ago
You need a loan for $1000, and you can take this loan out with Company A or Company B. Company A charges an 8% interest rate and
Wittaler [7]

Answer: Company b

Step-by-step explanation:

because company B is only 5percent it is better and can pay in 8 years

5 0
3 years ago
Each morning, Hungry Harry eats some eggs. On any given morning, the number of eggs he eats is equally likely to be 1, 2, 3, 4,
mamaluj [8]

Answer:

Mean = 35

Variance = 291.7

Step-by-step explanation:

Data provided in the question:

X : 1, 2, 3, 4, 5, 6

All the data are independent

Thus,

The mean for this case will be given as:

Mean, E[X] = \frac{\textup{Sum of all the observations}}{\textup{Total number of observations}}

or

 E[X] = \frac{\textup{1+2+3+4+5+6}}{\textup{6}}

or

E[X] = 3.5

For 10 days, Mean = 3.5 × 10 = 35

And,

variance = E[X²] - ( E[X] )²

Now, for this case of independent value,

E[X²] = \frac{1^2+2^2+3^2+4^2+5^2+6^2}{\textup{6}}

or

E[X²] = \frac{1+4+9+16+25+36}{\textup{6}}

or

E[X²] = \frac{91}{\textup{6}}

or

E[X²] = 15.167

Therefore,

variance = E[X²] - ( E[X] )²

or

variance = 15.167 - 3.5²

or

Variance = 2.917

For 10 days = Variance × Days²

= 2.917 × 10²

= 291.7

3 0
3 years ago
What is DE? Put the answer below.<br><br> DE =
Aleks04 [339]

Answer:

55

Step-by-step explanation:

CE is a bisector so DE has the same measure as BE.

8 0
2 years ago
Read 2 more answers
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