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konstantin123 [22]
2 years ago
13

What value of x makes the following equation true x + 10 = 18​

Mathematics
2 answers:
Mademuasel [1]2 years ago
6 0
X+10=18. |-10 from both sides
x+10-10=18-10
x=8
kondor19780726 [428]2 years ago
4 0

Step-by-step explanation:

The value should be

X=18-10= 8

X=8 Answer

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Find an ordered pair (x y) that is a solution to the equation calculator
galina1969 [7]
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7 0
3 years ago
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
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Answer:

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