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3 years ago

What is the value of x? 1495=490+x

Mathematics

2 answers:

puteri [66]3 years ago

5 0

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What is the value of x?

1495 - 490 = x

1005 = x

x = 1005
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Nostrana [21]3 years ago

4 0

X= 1495 - 490 = 1005

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The taxi fare in a city is $3 and then $0•40 for every kilometre travelled.A taxi fare is $9.How far has the taxi travelled

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2 years ago

To determine whether the means of two populations are equal,

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Answer:

The correct option is C. either a t test or an analysis of variance can be performed.

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3 years ago

A certain car model has a mean gas mileage of 34 miles per gallon (mpg) with a standard deviation A pizza delivery company buys

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Answer:

$z =\frac{33.3- 34}{\frac{5}{\sqrt{54}}}= -1.028$

$z =\frac{34.3- 34}{\frac{5}{\sqrt{54}}}= 0.441$

An we can use the normal standard table and the following difference and we got this result:

$P(-1.028$

Step-by-step explanation:

Assuming this statement to complete the problem "with a standard deviation 5 mpg"

We have the following info given:

$\mu = 34$ represent the mean

$\sigma= 5$ represent the deviation

We have a sample size of n = 54 and we want to find this probability:

$P(33.3 < \bar X< 34.3)$

And for this case since the sample size is large enough >30 we can apply the central limit theorem and then we can use this distribution:

$\bar X \sim N(\mu , \frac{\sigma}{\sqrt{n}})$

And we can use the z score formula given by:

$z=\frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}$

And replacing we got:

$z =\frac{33.3- 34}{\frac{5}{\sqrt{54}}}= -1.028$

$z =\frac{34.3- 34}{\frac{5}{\sqrt{54}}}= 0.441$

An we can use the normal standard table and the following difference and we got this result:

$P(-1.028$

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3 years ago

Mating eagle pairs typically have two baby eagles (called eaglets). When there are two eaglets, the parents always feed the olde

My name is Ann [436]

Answer:

C. x 0 1 2 p(x) 0.35 0.60 0.05

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50% chance of survival

Let:

x = older eaglet survive

y = younger eaglet survive

Hence,

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P(none survives)

1 - (0.60 + 0.05)

= 0.35

X _______ 0 ______ 1 ______ 2

P(x) ____ 0.35 ____ 0.60 ___ 0.05

5 0

2 years ago