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3 years ago

What is the anwser to this math problem -(-m-7)-3(4m-3)=71

Mathematics

1 answer:

kirill115 [55]3 years ago

3 0

Answer:

m=-5

Step-by-step explanation:

You first do distributive property:

(-m*-1)+(-1*-7)+(-3*4m)+(-3*-3)=71

that simplifies to:

16-11m=71

Next subtract 16 on both sides and you get:

-11m=55

Then divide by -11,

m=-5

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Evaluate -a+(-b)−a+(−b)minus, a, plus, left parenthesis, minus, b, right parenthesis where a = 6.05a=6.05a, equals, 6, point, 05

swat32

Answer: $-9.66$

Step-by-step explanation:

Here the given expression, $-a + (-b)$

Where $a = 6.05$ and $b =3.61$

By putting the given values of a and b in the given expression,

We get,

$- 6.05 + ( -3.61)$

$= -6.05 - 3.61$

$= - (6.05 + 3.61)$

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3 years ago

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Find the mean, variance, and standard deviation of the binomial distribution with the given values of n and p. , The mean, ,

klemol [59]

Complete Question

Find the mean, variance, and standard deviation of the binomial distribution with the given values of n and p. , The mean, , is nothing. (Round to the nearest tenth as needed.)

p = 0.6 n = 18

Answer:

The mean $\mu = 10.5$

The standard deviation $\sigma = 2.08$

The variance $var = 4.32$

Step-by-step explanation:

From the question we are told that

The probability of success is $p = 0.6$

The sample size is $n = 18$

Generally given that the distribution is binomial, then the probability of failure is mathematically represented as

$q = 1- p$

substituting values

$q = 1- 0.6$

$q =0.4$

Generally the mean is mathematically evaluated as

$\mu = np$

substituting values

$\mu = 18 * 0.6$

$\mu = 10.5$

The standard deviation is evaluated as

$\sigma = \sqrt{npq}$

substituting values

$\sigma = \sqrt{18 * 0.6 * 0.4}$

$\sigma = 2.08$

The variance is evaluated as

$var = \sigma^2$

substituting value

$var = 2.08^2$

$var = 4.32$

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3 years ago

Round to the nearest 10th "15 is what percent of 48"

Sever21 [200]

Answer:

x=31.25%

Step-by-step explanation:

set up a proportion as 15/48=x/100 and solve.

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3 years ago

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Answer:

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2 years ago

The speed (S) an object falls varies directly with time. If the speed is 49.0 m/s after 5 seconds, then what is the speed after

Lady bird [3.3K]

Answer:

not sure

Step-by-step explanation:

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2 years ago