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galina1969 [7]
2 years ago
13

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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A light flashes every two minutes a second light flashes every 3.5 minutes and a third light flashes every four minutes if all t
Bezzdna [24]
The answer should be 8:28 pm
6 0
3 years ago
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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

63

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

4 0
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

x=7

6 0
3 years ago
What expression is equivalent to 7-2z-4(z^3-z^3+4z^2+11z+14/z+2)
Sholpan [36]
Had to answer it on notepad. Hope This Is Right.

3 0
3 years ago
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