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
DIA [1.3K]
3 years ago
12

PLEASE DO AS MUCH AS YOU CAN! THANKS!

Mathematics
1 answer:
goldfiish [28.3K]3 years ago
6 0

Answer:

1. 2x+20

2. 8x-40

3. 7x+21

4. 8x-4

5. 15x+5

6. 12x+15

7. 20x-50

8. 21x+14

9. 24x-6

10. 45x-18

11. 18x-8

12. 30x+9

Explanation: Distributive Property

You might be interested in
Joe used a project management software package and has determined the following results for a given project.: Expected completio
statuscvo [17]

Answer:

0.1151 = 11.51% probability of completing the project over 20 days.

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Expected completion time of the project = 22 days.

Variance of project completion time = 2.77

This means that \mu = 22, \sigma = \sqrt{2.77}

What is the probability of completing the project over 20 days?

This is the p-value of Z when X = 20, so:

Z = \frac{X - \mu}{\sigma}

Z = \frac{20 - 22}{\sqrt{2.77}}

Z = -1.2

Z = -1.2 has a p-value of 0.1151.

0.1151 = 11.51% probability of completing the project over 20 days.

4 0
2 years ago
Can anyone answer the 1st question with steps​
azamat

Answer:

The cubed root of four hundred and forty-eight ∛448 = 7.6517247310896

Step-by-step explanation: Step by step simplification process to get cube roots radical form and derivative:First we will find all factors under the cube root: 448 has the cube factor of 16.Let's check this width ∛16*7=∛448. As you can see the radicals are not in their simplest form.Now extract and take out the cube root ∛16 * ∛7. Cube of ∛16=4 which results into 4∛7All radicals are now simplified. The radicand no longer has any cube factors.

6 0
3 years ago
What is 4/3 subtracted by 2/5
Tomtit [17]

Here is you're answer:

In order to find the answer you have to find the common denominator and then subtract.

  • \frac{4}{3} - \frac{2}{5}
  • Find the common denominator:
  • CD = 15
  • 4 - 2 = 2
  • =\frac{2}{15}

Therefore you're answer is "2/15."

Hope this helps!

3 0
2 years ago
Read 2 more answers
You go to a store and buy a soda, the store charges a 7.4% sales tax on your purchase. If the soda costs $3.79 how much will you
vekshin1

Answer:

Step-by-step explanation:

3.79x.074=.28

3.79+.28=4.07

5 0
3 years ago
5(2y+7) let y =0 evaluate the expression
Allushta [10]

5(2y+7)

5(2*0+7)

Multiply the bracket by 5

5(2)*5(0)*5(+7)

10*0+35

10*0= 0

0+35= 35

Answer: 35

8 0
3 years ago
Other questions:
  • Help me with this math problem
    6·2 answers
  • How do I solve this?
    15·1 answer
  • PLZ HELP NOOOOW!!
    12·1 answer
  • Here is a list of what John weighed in pounds on six different days. Find the mean of his weight to the nearest pound. 98, 101,
    11·1 answer
  • Given f(x)=21x+14, find f(5)
    5·1 answer
  • Can some one pls help?? its due tomorrow and ive already posted the question once but nobody listened :(
    10·1 answer
  • HELP HELP HELP HELP HELP
    9·2 answers
  • Solve the equation by completing the square
    6·2 answers
  • Write an equation for the line parallel to the given line that contains C.<br> Help
    5·1 answer
  • Find the mean, meadian, mode and range for each set of data 6, 9, 2, 4, 3, 6, 5
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!