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3 years ago

AB = Round your answer to the nearest hundredth. А ? 4 35° B С

Mathematics

2 answers:

Crank3 years ago

8 0

Answer:

chup mi wee-wee

Step-by-step explanation:

gavmur [86]3 years ago

4 0

Answer:

6.97

Step-by-step explanation:

t r u s t me

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Which of the following points would be a solution to this system of linear inequalities?

pychu [463]

Let's plug in both x and y values in the equation and check if the inequality is true...

$\red{ \rule{35pt}{2pt}} \orange{ \rule{35pt}{2pt}} \color{yellow}{ \rule{35pt} {2pt}} \green{ \rule{35pt} {2pt}} \blue{ \rule{35pt} {2pt}} \purple{ \rule{35pt} {2pt}}$

$(4,1) \\ y \leqslant x + 1 \\ y < - \frac{x}{2} - 1$

Substitute x as 4 and y as 1

$1 \leqslant 4 + 1 \\ 1 < - \frac{4}{2} - 1$

$0 \leqslant 4 + 1 \\ 1 < - 2 - 1$

$0 \leqslant 5 \\ 1 < - 3$

This is not a solution because both are not true, Only one equation is giving true as answer which is not correct!~

$\purple{ \rule{300pt}{3pt}}$

$(0, - 3) \\ y \leqslant x + 1 \\ y < - \frac{x}{2} - 1$

Substitute x as 0 and y as -3

$- 3 \leqslant 0 + 1 \\ - 3 < - \frac{0}{2} - 1$

$- 3 \leqslant 1 \\ - 3 < - 0 - 1$

$- 3 \leqslant 1 \\ - 3 < - 1$

This is a solution because both are true, Both the equations are true which means the ordered pair is a solution!~

Thus, Option B (0,-3) is the correct choice....

6 0

3 years ago

A soup can has a diameter of 8cm and a height of 12cm. What is the volume of the soup can? Use 3.14 for pie

Arada [10]

Volume= $\pi r^{2} h$
Volume=3.14*4*4*12 c $m^{3}$
Volume=602.88 c $m^{3}$

6 0

3 years ago

Read 2 more answers

In Melanie's Styling Salon, the time to complete a simple haircut is normally distributed with a mean of 25 minutes and a standa

qaws [65]

Answer:

$z=0.674$

And if we solve for a we got

$a=25 +0.674*4=27.7$

So the value of height that separates the bottom 75% of data from the top 25% is 27.7 minutes.

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 time to complete a simple haircut of a population, and for this case we know the distribution for X is given by:

$X \sim N(25,4)$

Where $\mu=25$ and $\sigma=4$

We are interested in the slowest quartile or the first quartile

For this part we want to find a value a, such that we satisfy this condition:

$P(X>a)=0.25$ (a)

$P(X$ (b)

Both conditions are equivalent on this case. We can use the z score again in order to find the value a.

As we can see on the figure attached the z value that satisfy the condition with 0.75 of the area on the left and 0.25 of the area on the right it's z=0.674. On this case P(Z<0.674)=0.75 and P(z>0.674)=0.25

If we use condition (b) from previous we have this:

$P(X$

$P(z$

But we know which value of z satisfy the previous equation so then we can do this:

$z=0.674$

And if we solve for a we got

$a=25 +0.674*4=27.7$

So the value of height that separates the bottom 75% of data from the top 25% is 27.7 minutes.

7 0

4 years ago

Jackson bought 3 pounds of candy for $9.60.

Yakvenalex [24]

Answer:

to find for one divide 9 dollars 60 pounds by 3 to get the coast of one candy

4 0

2 years ago

Please help me this is worth alot of points:(

asambeis [7]

SOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO

I´m sure this was already answered because for me it says it was from a while ago so ima just take tha points

THAMKSSSSSSSSSSSSSSSSSSSSSS

3 0

3 years ago