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
Softa [21]
2 years ago
5

Please help! (´・_・`)

Mathematics
2 answers:
uranmaximum [27]2 years ago
3 0

Answers: Choice A, Choice C

======================================================

Reason:

The distributive rule can be used in reverse to help factor.

One way to do this is to say the following steps

60 - 36w

6*10 - 6*6w

6(10-6w)

Which leads to choice A. To confirm, we can distribute the outer 6 into each term inside the parenthesis.

Similarly, choice C works because...

60 - 36w

12*5 - 12*3w

12(5 - 3w)

It can be confirmed by working the steps backwards.

There are many ways to factor this because we have multiple ways to factor 60 and to factor 36, such that we pull out a common factor each time.

Something like choice B doesn't work because 4(15-8w) = 60-32w. Close but not quite there.

Choice D doesn't work either since 3(20+12w) = 60+36w

Natali [406]2 years ago
3 0
6(10-6w) is the correct answer
You might be interested in
A car was purchased for $39150.00 and is expected to be worth $10800.00 in 9 years. Determine the rate at which the van deprecia
ser-zykov [4K]

Answer:

<u>The annual rate of depreciation of the car is 8.05% or 72.41/9</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Price of the purchase of the car = $ 39,150

Price after 9 years = $ 10,800

2. Determine the rate at which the van depreciates in value.

Let's calculate what is the percentage of depreciation after 9 years, this way:

Percentage of depreciation after 9 years = [1 - (Price after 9 years/Price of the purchase of the car)] * 100

Replacing with the values we know:

Percentage of depreciation after 9 years = [1 - (10,800/39,150)] * 100

Percentage of depreciation after 9 years = [1 - 0.2759] * 100

Percentage of depreciation after 9 years = 72.41%

<u>Annual rate of depreciation = 72.41/9 = 8.05%</u>

6 0
3 years ago
Please help asap! #33 Part A and Part B. Thanks
MAVERICK [17]
Part A: divide the miles she biked in the amount of time she took. so, 21/4= 5.25. Her average speed is 5.25 miles per hour.

Part B: If she bikes at the same rate (21 miles in 4 hours), then she would take 8 hours to bike 42 miles because 21+21=42 and since she takes 4 hours to bike 21 miles, then it would take her another 4 hours to bike another 21 miles
5 0
3 years ago
A random survey found that 6 of the 27 people surveyed prefer blueberry candies. Based on those results, about how many people
Softa [21]
I think it’s 24 I could be wrong but I’m pretty sure
3 0
3 years ago
If you answer this question you don’t just get brainliest. You also get a cookie
erma4kov [3.2K]

Answer:

A

Step-by-step explanation:

You first divide 4.2 and 0.7, which is 6. hen you subtract/add left to right, and that equals 6.2, and A is 6.2.

Hope it helps!

3 0
3 years ago
Read 2 more answers
A researcher studying the sleep habits of teens will select a random sample of n teens from the population to survey. The resear
kati45 [8]

Answer:

D. The center remains constant, and the area in the tails of the distribution decreases.

Step-by-step explanation:

Hello!

Be it two independent random variables, X~N(μ;σ²) and U~Xₙ², the variable t is determined by the quotient between a random variable N(0;1) and the square root of a Chi-Square variable divided by its degrees of freedom:

t= \frac{(X-Mu)/Sigma}{\sqrt{U/n} }

As a consequence of this, the structure of the distribution depends on the parameter n (degrees of freedom), it is centered in zero and has a bell-shape similar to the normal distribution.

It has a mean and variance:

E(t)= 0 for n > 1

V(t)= \frac{n}{n - 2} n > 2

As you can see the variance of the distribution is directly affected by its degrees of freedom, which means that when the degrees of freedom change, the variance of the distribution change and so does its shape.

When ↑n ⇒ ↑V(t) ⇒ The area under the tails increases.

When ↓n ⇒ ↓V(t) ⇒ The area under the tails decreases.

In this example, the degrees of freedom of the distribution decreased from 40 to 20, then the variance of the distribution decreases and it "flattens", i.e. the area under the tails gets lowered.

The E(t) isn't affected by the modification of n, so the distribution remains centered in zero.

I hope this helps!

6 0
3 years ago
Other questions:
  • A car averages 27 miles per gallon if gas costs $4.04 a gallon, which of the following is closest to how much the gas would cost
    5·1 answer
  • The chief of security for Mall of the Dakotas was directed to study the problem of missing goods. He selected a sample of 100 bo
    6·1 answer
  • SUNNY SPOTS EARNINGS WERE $8,329 MORE THAN THAT OF SILVER SKY.WRITE AND SOLVE AN ADDITION EQUATION TO FIND SILVER SKYS EARNINGS.
    10·1 answer
  • Simplify the expression <br><img src="https://tex.z-dn.net/?f=10.8%20%2B%20%20-%207.6%20%2B%2010.2h%20%2B%209.2" id="TexFormula1
    6·2 answers
  • 7.
    8·1 answer
  • Derek is building a model truck. The box says that the scale of the model is 1: 18. If the model is 10 inches long, how long wou
    14·1 answer
  • 8n - 7 = -5(-3n - 7)<br> Solve Multi-Step equation.<br> Please explain how you i can understand too!
    15·1 answer
  • How do you write ababaabaa in exponential form?​
    11·1 answer
  • 2,181x 10 to the power 7
    12·1 answer
  • Due very soon need help
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!