1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
creativ13 [48]
3 years ago
9

Use the Distributive Property to find the product mentally. Show the steps you used 5 x 47

Mathematics
1 answer:
guajiro [1.7K]3 years ago
5 0
5(40)+5(7)
200+35
235
You might be interested in
A counselor records the number of disagreements (per session) among couples during group counseling sessions. If the number of d
Shalnov [3]

Answer:

P(X>4)=P(\frac{X-\mu}{\sigma}>\frac{4-\mu}{\sigma})=P(Z>\frac{4-4.4}{0.4})=P(z>-1)

And we can find this probability with the complement rule:

P(z>-1)=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 disagreements of a population, and for this case we know the distribution for X is given by:

X \sim N(4.4,0.4)  

Where \mu=4.4 and \sigma=0.4

We are interested on this probability

P(X>4)

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>4)=P(\frac{X-\mu}{\sigma}>\frac{4-\mu}{\sigma})=P(Z>\frac{4-4.4}{0.4})=P(z>-1)

And we can find this probability with the complement rule:

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

3 0
3 years ago
A convertible is traveling at 45 miles per hour, and its wheels have a diameter of 48 inches. How many complete revolutions do t
neonofarm [45]
To answer this question you will need to know how many inches the car travels Per minute.

1. To find this out you will first divide 45 miles by 60 to get the number of miles per minute.

The convertible travels 0.75 mi./min.

2. Next you will convert this number of miles to inches.

There are 63,360 inches per mile.

0.75 x 63360 = 47520 inches per minute.

3. You then need to find the distance the wheel travels in one rotation. You will need to find the circumference of the wheel.

C = pi x d
3.14 x 48
C = 150.72 inches
Each rotation is about 150.72 inches.

4. Finally, divide the total distance traveled in a minute by the circumference(distance of one rotation) to get the total number of rotations in a minute.

47520/150.72 is about 315.3 rotations per minute.



7 0
3 years ago
Read 2 more answers
Help please i genuinely cant
Elza [17]

Answer:36 divided by 3x is part a  and 7 is part b

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Given that x =4 and y= 1 over 2, find the value of 2x²- 3xy
jarptica [38.1K]

Answer:

26

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Use substraction to find the length of segments wx and xy
Maurinko [17]

Answer:

What segments are we SUBTRACTING from ??

6 0
4 years ago
Other questions:
  • At 9:00 on Saturday morning, two bicyclists heading in opposite directions pass each other on a bicycle path. The bicyclist head
    11·2 answers
  • (x+6)(x+4)(x-3) expand and simplify
    9·2 answers
  • The distance between B and C
    10·1 answer
  • 7x - 3y = 42x - 4y = 1the solution to the system of equations is _____.
    9·1 answer
  • Plz help very important
    10·1 answer
  • What is 1/9 (2m - 16) = 1/3 (2m +4)
    5·1 answer
  • Side lengths of a triangle 5x-1 and 4x+1
    8·1 answer
  • What is the area of the figure ?
    6·1 answer
  • PLS HELP ASAP! 20 PTS<br><br> evaluate
    13·1 answer
  • I need this answer ASAP
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!