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Svet_ta [14]
3 years ago
13

Need help on this!!!!

Mathematics
2 answers:
kotykmax [81]3 years ago
4 0

Answer:

D

Step-by-step explanation:

First find h(3)

2(3)-2= 4

then find g(4)

4³-5= 59

valentinak56 [21]3 years ago
4 0
Yeah it’s D lol djdjhdjxkandbshx
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Factor the polynomial by factoring out the GCF. <br> 20a^2 + 4a
jekas [21]

Answer:

4a(5a + 1)

Step-by-step explanation:

Given

20a² + 4a ← factor out 4a from each term

= 4a(5a + 1)

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3 years ago
Which statement is true of triangles FGH and JKL?
Mars2501 [29]

Answer:

They are similar because their corresponding angles are congruent and their corresponding sides are proportional in length.

Step-by-step explanation:

From the statements,

∠G≅∠K

∠F≅∠J

∠H≅∠L

The sides of triangle FGH are proportional to those of triangle JKL

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3 years ago
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konstantin123 [22]

Answer:

A:870         B:438.82

Step-by-step explanation:

L x W x H

have a nice day :-)

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3 years ago
A survey of 200 students is selected randomly on a large university campus. They are asked if they use a laptop in class to take
Lina20 [59]

Answer:

The 95% confidence interval for the true proportion of university students who use laptop in class to take notes is (0.2839, 0.4161).

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for population proportion <em>P</em> is:

CI=p\pm z_{\alpha/2}\sqrt{\frac{p(1- p)}{n}}

The information provided is:

<em>x</em> = number of students who responded as"yes" = 70

<em>n</em> = sample size = 200

Confidence level = 95%

The formula to compute the sample proportion is:

p=\frac{x}{n}

The R codes for the construction of the 95% confidence interval is:

> x=70

> n=200

> p=x/n

> p

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> s=sqrt((p*(1-p))/n)

> s

[1] 0.03372684

> E=qnorm(0.975)*s

> lower=p-E

> upper=p+E

> lower

[1] 0.2838966

> upper

[1] 0.4161034

Thus, the 95% confidence interval for the true proportion of university students who use laptop in class to take notes is (0.2839, 0.4161).

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3 years ago
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Find the volume of the pyramid.
lana66690 [7]

Answer:

140

Step-by-step explanation:

B=35

1/3 (35)(12)

= 140

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3 years ago
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