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3 years ago

Please help im so lost

Mathematics

1 answer:

qwelly [4]3 years ago

5 0

Answer:

are you allowed to email your teacher about it

that's only if you are doing remote school

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Chris is driving his car at a rate of 32 miles per hour. Albert is driving his car at a rate of 36 miles per hour. Both started

enot [183]

Answer:

Use the formula r = d/t. Your rate is 24 miles divided by 2 hours, so: r = 24 miles ÷ 2 hours = 12 miles per hour. Now let's say you rode your bike at a rate of 10 miles per hour for 4 hours.

Step-by-step explanation:

7 0

4 years ago

In a day, Robin spends 6 hours at school, sleeps for 9 hours, plays for 3 hours, and spends the rest of the time doing other thi

slavikrds [6]

6hrs = school
9hrs = sleeps = 18hrs // 24hrs ----6hrs left
3hrs = plays

6hrs = other things

playing = 12.5% -- 3/24 3/24*100
other things = 25% -- 6/24 6/24*100

5 0

3 years ago

Read 2 more answers

Given that z is a standard normal random variable, find z for each situation. The area between 0 and z is .4750. Answer The area

algol13

Answer:

$P(0$

And solving for z we have

$P(Z$

And we can find the value for z with the following excel code:

"=NORM.INV(0.975,0,1)"

And we got z =1.96

$P(Z>z)= 0.1314$

And we can use the complement rule and we got:

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

$P(Z$

And we can find the value for z with the following excel code:

"=NORM.INV(0.8686,0,1)"

And we got z =1.120

$P(Z$

And we can find the value for z with the following excel code:

"=NORM.INV(0.67,0,1)"

And we got z =0.440

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

We want this probability:

$P(0$

And solving for z we have

$P(Z$

And we can find the value for z with the following excel code:

"=NORM.INV(0.975,0,1)"

And we got z =1.96

For the next part we want to calculate:

$P(Z>z)= 0.1314$

And we can use the complement rule and we got:

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

$P(Z$

And we can find the value for z with the following excel code:

"=NORM.INV(0.8686,0,1)"

And we got z =1.120

For the next part we want to calculate:

$P(Z$

And we can find the value for z with the following excel code:

"=NORM.INV(0.67,0,1)"

And we got z =0.440

6 0

3 years ago

Annie paid $7.98 for a six-pack of bottled iced tea. What is the unit price for the iced tea.

navik [9.2K]

Answer:

1.33

Step-by-step explanation:

7.98 divided by 6 = 1.33

6 goes into 7 once then 7-6= 1 bring down the 9. 6 goes in 19 3 times 19-18=1 bring the 8 down then 6 goes into 18 3 times.

4 0

3 years ago

A sporting goods store has 33 sets of golf clubs in stock. They get a shipment with 52 more sets of golf clubs. How many sets of

belka [17]

<h3>The golf club has 85 stes of golf clubs now</h3>

<em><u>Solution:</u></em>

Given that,

A sporting goods store has 33 sets of golf clubs in stock

They get a shipment with 52 more sets of golf clubs

To find: Number of golf clubs in the store now

From given,

Stock = 33 sets

shipment = 52 sets

Therefore,

Number of golf clubs in the store now = 33 + 52

Number of golf clubs in the store now = 85

Thus the golf club has 85 stes of golf clubs now

3 0

3 years ago

Please help im so lost​

Please help im so lost