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3 years ago

Can someone help will name brainliest if the answer is correct

Mathematics

1 answer:

Neporo4naja [7]3 years ago

6 0

Answer:

64 hope it helps

Step-by-step explanation:

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In 3 years' time, a girl will be over 18 years old. If she is now x years old, write an inequality in x.

Dvinal [7]

Answer:

x+3=18

If her age is currently x , then 3 years later it would be 18 .

so,

x+3=18

Hope this helps!!

please mark as branliest .

Thankyou

3 0

3 years ago

Read 2 more answers

A candy bar box is in the shape of a triangular prism. The volume of the box is 1,200 cubic centimeters.

vampirchik [111]

Answer:

$Height = 12cm$

Step-by-step explanation:

Given

$Volume = 1200cm^3$

The dimension of the base is:

$Base =10cm$

$Sides = 13cm$

<em>See comment for complete question</em>

Required

The height of the base

To do this, we make use of Pythagoras theorem where:

$Sides^2 = (Base/2)^2 + Height^2$

So, we have:

$13^2 = (10/2)^2 + Height^2$

$13^2 = 5^2 + Height^2$

$169 = 25 + Height^2$

Collect like terms

$Height^2 = 169 - 25$

$Height^2 = 144$

Take square roots of both sides

$Height = 12cm$

7 0

3 years ago

What is the slope of the line that lies between the points (0, -1) and (-1,2)?

Shkiper50 [21]

Answer:

m=-3

Step-by-step explanation:

3 0

3 years ago

PLEASE ANSWER I WILL GIVE BRAINLEIST

Ghella [55]

-16 i think is the correct anwser because you take the old number then subtract the new number then divide the old one then multiply by 100

3 0

3 years ago

Read 2 more answers

Determine mu Subscript x overbar and sigma Subscript x overbar from the given parameters of the population and the sample size.

pentagon [3]

Answer:

$\bar X= \mu = 25$

$\sigma_{\bar X}= \frac{7}{\sqrt{15}}= 1.807$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the variable of interest of a population, and for this case we know the following conditions

Where $\mu=25$ and $\sigma=7$

And for this case we select a sample size of n= 15. and we want to know the distribution for the sample mean $\bar X$ . We can assume that the distribution for $\bar X$ is approximately normal and given by:

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

Asuming that the distribution for X is also approximately normal. So then the parameters are:

$\bar X= \mu = 25$

$\sigma_{\bar X}= \frac{7}{\sqrt{15}}= 1.807$

8 0

3 years ago