3 years ago

What is the measure of angle one

Mathematics

2 answers:

boyakko [2]3 years ago

5 0

The answer is 61 is the angle have a great day hun

ololo11 [35]3 years ago

3 0

Angle one would be 61

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(2x)(x^2+4)... Find the value

mestny [16]

Hello, Here is the answer : 2x^3 + 8x .

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3 years ago

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insurance company checks police records on 559 accidents selected at random and notes that teenagers were at the wheel in 91 of

ss7ja [257]

Answer: $(13.22\%,\ 19.34\%)$

Step-by-step explanation:

Given : Sample space : n= 559

Sample proportion : $\hat{p}=\dfrac{91}{559}=0.162790697674\approx0.1628$

$=16.28\%$

Significance level : $\alpha= 1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

Confidence level for population proportion:-

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.1628\pm (1.96)\sqrt{\dfrac{0.1628(1-0.1628)}{559}}\\\\=0.1628\pm0.030604971367\\\\\approx 0.1628\pm0.0306=(0.1322,\ 0.1934)=(13.22\%,\ 19.34\%)$

Hence, 95% confidence interval for the percentage of all auto accidents that involve teenage drivers.= $(13.22\%,\ 19.34\%)$

7 0

4 years ago

What is f(-3) for the function f(a)=-2a2-5a+4?

posledela

Answer:

-25

Step-by-step explanation:

2a² - 5a + 4, for f(-3)

2(-3)² -5(-3)+4

2*(-27)+15+4

-54+19

= -25

4 0

3 years ago

Can someone explain to me I don’t understand it!thank you

Elis [28]

Since the person had $408.98 to begin with and took away/withdrawal ($178.67+$100=$278.67) $278.67 and then added/deposited $214.87....
$408.98-$278.67+$214.87=$345.18

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3 years ago

Which pairs of measures could be the measures of∠A and ∠C?<br> Select all that apply.

gladu [14]

Answer:

A, 55, 55

B, 30, 30

E, 45, 90

Are the possible choices for the measures <A and <C. Hope this helps!

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3 years ago