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2 years ago

Need help ASAP AND SHOW WORK PLEASE THANKS !!!60 points ?

Mathematics

2 answers:

algol [13]2 years ago

8 0

Answer:

Area=20

Perimeter=21

hope it helps you

olga nikolaevna [1]2 years ago

6 0

Area = 23
perimeter = 24

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Some one pls help me with this

MrMuchimi

Answer:

JKL=127°

BEF=63°

m 1=90°

CBY=66°

Step-by-step explanation:

JKL:

the two lines are parallel and cut by one line so the corresponding angles just be the same.

BEF:

(7x-14)=4x+19

add 14 to each side

7x=4x+33

subtract 4x from each side

3x=33

divide each side by 3

x=11

implement that into 4x+19

4(11)+19

44+19

m 1:

Since the congruent angles is 90 and 90 + m 1= 180° the m 1 has to be 90°

3x+9+6x=180 since they are corresponding angles on a parallel line and corresponding angles must equal 180° in total

9x+9=180

subtract 9

9x=171

divide each side by 9

x=19

3(19)+9

66°

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!

7 0

3 years ago

A bottle maker believes that 14% of his bottles are defective. If the bottle maker is accurate, what is the probability that the

Hitman42 [59]

Answer:

$z = \frac{0.11-0.14}{0.0139} = -2.156$

And we can use the normal standard distribution table and we got:

$P(Z$

Step-by-step explanation:

For this case we know the following info given:

$p =0.14$ represent the population proportion

$n = 622$ represent the sample size selected

We want to find the following proportion:

$P(\hat p$

For this case we can use the normal approximation since we have the following conditions:

i) np = 622*0.14 = 87.08>10

ii) n(1-p) = 622*(1-0.14) =534.92>10

The distribution for the sample proportion would be given by:

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

The mean is given by:

$\mu_{\hat p}= 0.14$

And the deviation:

$\sigma_{\hat p}= \sqrt{\frac{0.14*(1-0.14)}{622}}= 0.0139$

We can use the z score formula given by:

$z=\frac{\hat p -\mu_{\hat p}}{\sigma_{\hat p}}$

And replacing we got:

$z = \frac{0.11-0.14}{0.0139} = -2.156$

And we can use the normal standard distribution table and we got:

$P(Z$

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3 years ago

166=x+87-x+93 pleaseeeeeee helpppppp

bearhunter [10]

Answer:

x=7

Step-by-step explanation:

166=x+87+x+93

166=2x+87+93

166=2x+180

-180 -180

-14=2x

/2 /2

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3 years ago

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