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2 years ago

PLEASE HELP IM SO STRESSED RN HDHHSH

Mathematics

1 answer:

ladessa [460]2 years ago

4 0

Answer:

If we want to cover the base of the prism having dimensions 2 cm × 1 cm with cm length of cube, then there will be (4 × 2) = 8 cubes that can occupy the base.

Step-by-step explanation:

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Sara bought a 24-ounce can of tomato sauce for $6. What is the unit price per ounce

Rufina [12.5K]

24-ounce can of tomato sauce for 6%
The unit price can be find dividing 24/6= 4
4 unit price per ounce

8 0

3 years ago

What is the probability that a randomly selected member of a normally distributed population will lie more than 1.8 standard dev

Helen [10]

Answer:

$P(X> \mu +1.8\sigma)=P(\frac{X-\mu}{\sigma}>\frac{\mu +1.8\sigma-\mu}{\sigma})=P(Z>1.8)$

And we can find this probability using the complement rule:

$P(z>1.8)=1-P(z$

And using the normal standard distirbution table or excel we got:

$P(z>1.8)=1-P(z$

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 if interest of a population, and for this case we know the distribution for X is given by:

$X \sim N(\mu,\sigma)$

We are interested on this probability

$P(X>\mu +1.8 \sigma)$

And the best way to solve this problem is using the normal standard distribution and the z score given by:

$z=\frac{x-\mu}{\sigma}$

If we apply this formula to our probability we got this:

$P(X> \mu +1.8\sigma)=P(\frac{X-\mu}{\sigma}>\frac{\mu +1.8\sigma-\mu}{\sigma})=P(Z>1.8)$

And we can find this probability using the complement rule:

$P(z>1.8)=1-P(z$

And using the normal standard distirbution table or excel we got:

$P(z>1.8)=1-P(z$

5 0

3 years ago

For chemistry lab you use to ounces of calcium 2.5 pounds of copper and 1/4 pound of nickel what was the combine we have your ma

kifflom [539]

2 oz calcium+
2 pound 8 oz copper+
4 oz nickel

equals

2 pound 14 ounces materials

(there are 16 ounces in a pound)

7 0

2 years ago

during the first round of game show, jackson scored 300 points. After the second round,after the second round, his total score w

mrs_skeptik [129]

Answer:

-600

Step-by-step explanation:

Jackson's initial score was 300, then his later score became -300, so you know that he had to lose points.

-300=300+x

** x represents the point change

Then just solve the equation by getting x by itself. You do this by subtracting 300 from both sides:

-300=300+x

-300 -300 = -300-300+x

-600 = x

4 0

3 years ago

Annie wants to place the letter A on the number line at 3/4 does she place a in the right place

saw5 [17]

I need 2 see the number line 2 know....

3 0

3 years ago