3 years ago

Write an equation in x to represent each statement below. Do not solve the equation.

Mathematics

1 answer:

worty [1.4K]3 years ago

7 0

1st statement: x+4=x/2+10
2nd statement: x^2 +6=2x+9

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The radius of a circular park is 114 yd. To the nearest yard, what is the circumference of the park?

adell [148]

circumference = 2 x pi x r

using 3.14 for pi

2 x3.14x114=715.92

round to 716 yards

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4 years ago

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There are 300 welders employed at Maine Shipyards Corporation. A sample of 30 welders revealed that 18 graduated from a register

zmey [24]

Answer: (0.4247,0.7753)

Step-by-step explanation:

Given : Sample size : n=30

Number of people graduated from a registered welding course =18

The probability of people graduated from a registered welding course : $p=\dfrac{18}{30}=0.6$

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

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

A confidence interval for population proportion is given by :-

$p \pm z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}\\\\=0.6\pm(1.96)\sqrt{\dfrac{0.6(1-0.6)}{30}}\\\\\approx0.6\pm0.1753\\\\=(0.4247,0.7753)$

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3 years ago

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grandymaker [24]

The Answer Is 2.12 $ Are Left In The Gift Card

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3 years ago

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F(7) if f(x) = x + 10.

kozerog [31]

Answer:

Step-by-step explanation:

at f(7) means x is 7

7+10 is 17

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2 years ago

Can i get help with this question?

hichkok12 [17]

Subtrahend? There's a word we'll never use again.

Counting we get 31

$|19 - -12| = | 19 + 12| = | 31 | =31$

$| -12 -19| = |- 31 | =31$

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3 years ago