3 years ago

Evaluate the follow expression

Mathematics

1 answer:

STatiana [176]3 years ago

4 0

I see the answers,but where is the problem (equation that needs to be solved)

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Difference between a number and its positive square root is 12 Find the number.

SVETLANKA909090 [29]

Answer:

156

Step-by-step explanation:

x - √+ = 12

= 12^2= 144

x = 144

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3 years ago

Is t = 9 a solution to the inequality below?<br> 8>t<br> Please hurry and explain!

dexar [7]

Answer:

Step-by-step explanation:

its 7

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3 years ago

Which best describes the dimensions of a line?

Mashcka [7]

Answer:

A line has one dimension because it is made up of all points that extend infinitely in either direction.

Step-by-step explanation:

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2 years ago

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Let f(x) = xe−x if x ≥ 0 and f(x) = 0 if x < 0<br> Is f a probability density function?

Lynna [10]

Yes. $f(x)$ is a PDF if

• $f(x) \ge 0$ for all $x$ in the support; this is true, since $e^{-x}>0$ for all $x$ , and multiplying a positive number $x$ doesn't change this fact;

• the integral of $f(x)$ over its support is 1; this is also true, since

$\displaystyle \int_{-\infty}^\infty f(x) \, dx = \int_0^\infty xe^{-x} \, dx = 1$

which can be computed by parts.

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1 year ago

Simplify the ratio 19:114

masha68 [24]

$19:114 = \frac{19}{114}$ ÷ $\frac{19}{19} = \frac{1}{6} = 1:6 \ \textless \ -answer$

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3 years ago