All categories

3 years ago

How do you do the number line part ?

Mathematics

1 answer:

Naily [24]3 years ago

5 0

Answer:

you would mark the different points less than 250 and then you plot the inequality from the previous questions.

You might be interested in

Assume the readings on thermometers are normally distributed with a mean of 0degreesC and a standard deviation of 1.00degreesC.

Nat2105 [25]

Answer:

$P(-2.05$

And we can find this probability with this difference

$P(-2.05$

And we can see the figure in the plot attached.

Step-by-step explanation:

Let X the random variable that represent the redings on thermometers of a population, and for this case we know the distribution for X is given by:

$X \sim N(0,1)$

Where $\mu=0$ and $\sigma=1$

We are interested on this probability

$P(-2.05$

We can use the z score formula given by:

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

Using this formula we got:

$P(-2.05$

And we can find this probability with this difference

$P(-2.05$

And we can see the figure in the plot attached.

5 0

4 years ago

Emily practices piano for 2/3 of an hour on Monday and 1/2 hour on Wednesdays. How many hours does Emily spend practicing piano

Sergeu [11.5K]

Answer:

50 minutes

Step-by-step explanation:

Given:

$\bullet \ \ \text{Monday:} \ \dfrac{2}{3} \times \text{Hour}\\\\\bullet \ \text{Wednesday:} \ \dfrac{1}{2} \times \text{Hour}$

Since Emily only practiced on Monday and Wednesday, the sum of time on both days is the time Emily practiced on the piano for a week.

$\implies \text{Monday + Wednesday = Total time practiced on piano for a week}$

Substitute the times in the equation

$\implies (\dfrac{2}{3} \times \text{Hour}) + (\dfrac{1}{2} \times \text{Hour}) = \text{Total time practiced on piano for a week}$

Simplify the equation

$\implies (\dfrac{2}{3} \times 60 \ \text{minutes}) + (\dfrac{1}{2} \times 60 \ \text{minutes}) = \text{Total time practiced on piano for a week}$

$\implies (20 \ \text{minutes}) + (30 \ \text{minutes}) = \text{Total time practiced on piano for a week}$

$\implies \boxed{50 \ \text{minutes} = \text{Total time practiced on piano for a week}}$

4 0

2 years ago

Can 9, 6, and 5 be the lengths of the sides of a triangle? (yes or no answer)

iren [92.7K]

The answer is choice “Yes”

3 0

4 years ago

Find the y-intercept and x-intercept of the following linear equation. 6x+3y=−18

Gnoma [55]

y-intercept is -6 (0,-6) and the x-intercept is -3 (-3,0)

6 0

4 years ago

Read 2 more answers

Can someone please help me because I'm struggling

Fudgin [204]

FG=1.9 because since they are congruent Sr=FG

S=75° because they are congruent so G=75° so S=75°

4 0

4 years ago