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3 years ago

Help for brainliest find the unknown angels

Mathematics

1 answer:

Ostrovityanka [42]3 years ago

6 0

F=68 degrees

E=54 degrees

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HILP3.)

Pachacha [2.7K]

Answer:

Step-by-step explanation:

a-number of advance tickets

s-number of same day tickets

a*40+s*25=2400

a +s =75

I solve with the substitution method

s=75-a

40a+25*(75-a)=2400

40a+1875-25a=2400

15a=2400-1875

15a=525

a=525/15

a=35

so s=75-35

s=40

5 0

3 years ago

A company lost an average of $30,000 per month. Find the total loss of the company in 1 year.

Art [367]

Answer:

$360,000

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

In a random sample of 45 newborn babies, what is the probability that 40% or fewer of the sample are boys. (Use 3 decimal places

erastova [34]

Answer:

$z= \frac{p- \mu_p}{\sigma_p}$

And the z score for 0.4 is

$z = \frac{0.4-0.4}{\sigma_p} = 0$

And then the probability desired would be:

$P(p$

Step-by-step explanation:

The normal approximation for this case is satisfied since the value for p is near to 0.5 and the sample size is large enough, and we have:

$np = 45*0.4= 18 >10$

$n(1-p) = 45*0.6= 27 >10$

For this case we can assume that the population proportion have the following distribution

$p \sim N(p,\sqrt{\frac{p(1-p)}{n}})$

Where:

$\mu_{p}= \hat p = 0.4$

$\sigma_p = \sqrt{\frac{p(1-p)}(n} =\sqrt{\frac{0.4(1-0.4)}(45}= 0.0703$

And we want to find this probability:

$P(p$

And we can use the z score formula given by:

$z= \frac{p- \mu_p}{\sigma_p}$

And the z score for 0.4 is

$z = \frac{0.4-0.4}{\sigma_p} = 0$

And then the probability desired would be:

$P(p$

7 0

3 years ago

Read 2 more answers

Which rational expression will complete the equation? 4z^5/7 (?)= z^10/14

Burka [1]

Answer: The rational expression that is needed is z^5/8.

In the problem, we are starting with 4z^5/7 and multiply by something. Then, we have z^10/14.

First, let's deal with the variables. We go from z^5 to z^10, so we had to multiply by z^5.

Second, our fraction went from 4/7 to 1/14, the missing factor would be 1/8 because 4/7 times 1/8 equals 1/14.

7 0

3 years ago

6 times the sum of a number t and 5 is s

Crank

Umm simplified it would be 30t=s. 6*5t=s

6 0

3 years ago