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NikAS [45]
3 years ago
12

4x+25=57valor de x por favor​

Mathematics
2 answers:
sukhopar [10]3 years ago
8 0

Answer:

4x=8

Step-by-step explanation:

4x=32

32/4=8

oksian1 [2.3K]3 years ago
8 0

Answer:

x=8

Step-by-step explanation:

4x+25=57

Subtract 25 from both sides:

4x+25-25=57-25

Simplify:

4x=32

Divide both sides by 4:

4x/4=32/4

Simplify:

x=8

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sergeinik [125]

Answer:

0.6517

Step-by-step explanation:

Given that in a certain game of chance, your chances of winning are 0.3.

We know that each game is independent of the other and hence probability of winning any game = 0.3 (constant)

Also there are only two outcomes

Let X be the number of games you win when you play 4 times

Then X is binomial with p = 0.3 and n =4

Required probability

= Probability that you win at most once

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We have as per binomial theorem

P(X=r) = nCr p^r (1-p)^{n-r}

Using the above the required prob

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3 0
3 years ago
Assume you have 4 fins, each with a mass of 8grams. what's the total weight of these 4 fines?
Kryger [21]
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3 0
3 years ago
Suppose that documentation lists the average sales price of a single-family home in the metropolitan Dallas/Ft. Worth/Irving, Te
Julli [10]

Answer:

"0.0373" seems to be the appropriate solution.

Step-by-step explanation:

The given values are:

n₁ = 43

n₂ = 35

\bar{x_1}=217800

\bar{x_2}=204700

\sigma_1=30300

\sigma_2=33800

Now,

The test statistic will be:

⇒  Z=\frac{\bar{x_1}-\bar{x_2}}\sqrt{\frac{\sigma_1^2}{n_1} +\frac{\sigma_2^2}{n_2} }

On substituting the given values in the above formula, we get

⇒      =\frac{217800-204400}{\sqrt{\frac{(30300)^2}{43} +\frac{(33800)^2}{35} } }

⇒      =\frac{217800-204400}{\sqrt{\frac{918090000}{43} +\frac{1142440000}{35} } }

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⇒      =1.7828

then,

P-value will be:

=  P(Z>1.7828)

=  0.0373

8 0
2 years ago
Evaluate the following expression.<br><br> 10 x 1 + 2 x 60/10
g100num [7]

Answer:

22

Step-by-step explanation:

10*1=10

then as we know first we should do multiplier and division so,

2*60=120, 120/10=12

10+12=22

3 0
3 years ago
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Find the slope and y-internet.
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