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
zavuch27 [327]
4 years ago
15

Please help me I don’t understand it

Mathematics
1 answer:
Anna35 [415]4 years ago
8 0

Answer:

D

Step-by-step explanation:

The solution is B. In each equation, it uses parenthesis to group operations. On the left, each pair repeats one number either 1.6 and 4.2. On the right is written the reduced form by writing the expression with a greatest common factor.

Option A is incorrect since 1.6 is not the GCF which appears in each parenthesis.

Option B is incorrect because the operation in the parenthesis is multiplication and not addition.

Option C is incorrect because 1.6 as a GCF is applied using multiplication.

Option D is correct since 1.6 does occur as a GCF in each parenthesis. It also has written correctly (4.2 +7) since addition is the operation between the parenthesis.

You might be interested in
80% of what number is 16?
ANEK [815]
Part: 16
total: 20
percent: 80%
6 0
4 years ago
A courtyard is shaped like a square with 250ft long sides. What is the distance from one corner of the courtyard to the opposite
Valentin [98]
Lets draw the square first.
As you can see in the diagram, the distance between one corner and the opposite side is the diagonal of the rectangle which divides it into tow right triangles. Since we know that in a square all the lengths have the same measure, the legs of our triangle are going to measure 250 ft.
Now, the only thing left to do is apply the Pythagorean theorem to find the hypotenuse of our triangle which is no other than the diagonal of our square:
h= \sqrt({25}0^{2} +250^{2} )
h= \sqrt{125000}
h=353.6
We can conclude that the distance <span>from one corner of the courtyard to the opposite corner is 353.6 ft.</span>

6 0
3 years ago
An online survey company wants to know if customer age is important in deciding to subscribe. The company has gathered a random
aleksley [76]

Answer:

service subscription and age are not independent

Step-by-step explanation:

The appropriate statistical test to adopt for the above problem is the Chisquare test.

The hypothesis :

H0 : service subscription and age are independent

H1 : service subscription and age are not independent

Observed values :

Under 18 18-34 35 and Over Total

Yes__ 120 __262 __237__ 619

No___ 41 ___103 __237 __381

Total 161 365 574 1000

χ² = (Observed - Expected)²/Expected

Expected Values:

99.659 __ 225.935 __ 293.406

61.341 ___ 139.065 __ 180.594

The Chisquare values :

4.15172__ 5.7569__ 10.8438

6.74518_ 9.35307 __ 17.6176

χ² = 4.15172 + 5.7569 + 10.8438 + 6.74518 + 9.35307 + 17.6176 = 54.46827

Degree of freedom = (row-1)*(column-1) = (2-1)*(3-1) = 1*2 = 2

Pvalue at df = 2 ; Pvalue = 0

α = 0.05

Pvalue < Α ; Hence, we reject H0 ; and conclude that service subscription and age are not independent

3 0
3 years ago
What is 2x + 8y explained
SVEN [57.7K]

Answer:

2x + 8y = 16

Step-by-step explanation:

Subtract 2x from both sides of the equation.

8y = 16 − 2x

Divide each term by 8 and simplify.

3 0
4 years ago
What is the classification for this polynomial?
Hunter-Best [27]
Trinomial i think......
3 0
3 years ago
Other questions:
  • The train ride at the zoo covers a distance of 2 1/2 miles in 1/3 of an hour. How many miles per hour does the train go? How far
    7·1 answer
  • NEED HELP ASAP!!!<br> What is the expression in radical form? Show your work.<br> (2x^3y^4)3/7
    7·1 answer
  • What is the next number in the pattern 1, 4, 16, 64, 256
    6·1 answer
  • Is it true that (x^2–3x+2)/(x –1) = x – 2, for all values of x? Justify your answer.
    9·1 answer
  • A) Change 2800 cm³ into litres.<br><br>b) Change 12.4/ into cm³.​
    14·2 answers
  • The height of a prism,cylinder, pyramid, or cone is always_ to the base
    10·1 answer
  • Solve the following inequality.<br> 4m +6&lt;2 OR m74<br> &gt; 3
    12·1 answer
  • If f and g are functions of time, and at time t = 2, f equals 5 and is rising at a rate of 6 units per second, and g equals 7 an
    5·2 answers
  • What is the product of 2.2 + 0.3d- 4
    13·2 answers
  • 3÷2.58=<br> what's the answer i'm fr wut is the answer
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!