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
Lubov Fominskaja [6]
3 years ago
13

Use the Associative Property of Addition to write an expression equivalent to (n + 2) + 7. Which expression is equivalent to (n

+ 2) + 7 by the Associative Property of Addition? O A. (n+7)+2 OB. n +(2+7) OC. 7+ (n +2) OD. n +2 +7 Click to select your answer. Save for Later
Mathematics
1 answer:
insens350 [35]3 years ago
6 0

Answer:

The correct answer is OB.

Step-by-step explanation:

Let us recall the Associative Property of Addition: given three real numbers a, b and c the following equality holds:

(a+b) + c = a+(b+c).

Let us remark that the Associative Property of Addition tells us that we can perform the sums in any order.  So,

(n+2)+7 = n+(2+7).

In the other options there was used the Commutative Property of Addition.

You might be interested in
Using f(x) = 2x + 7 and g(x) = x - 3, find f(g(x)).
Eva8 [605]

Answer:

2x+1

Step-by-step explanation:

that's a hard question

we know that g(x)= x-3

so f(g(x))= f(x-3)

we put it in the equation :

f(x-3)= 2(x-3) +7 = 2x-6+7 = 2x +1

6 0
3 years ago
What is 201 divided by 7?
anzhelika [568]
201÷7= 28.71
The answer is 28.71
5 0
2 years ago
Select one:<br> a. 4<br> b.5<br> c. 6<br> d. 7
tino4ka555 [31]

Answer:

C

Step-by-step explanation:

Given 2 secants intersect a circle from a point outside the circle, then

The product of the external part and the entire part of one secant is equal to the product of the external part and the entire part of the other secant, that is

x(x + 10 + x) = 6(6 + 10 + x)

x(2x + 10) = 6(16 + x) ← distribute parenthesis on both sides

2x² + 10x = 96 + 6x ← subtract 96 + 6x from both sides

2x² + 4x - 96 = 0 ← in standard form

Divide through by 2

x² + 2x - 48 = 0 ← factor the left side

(x + 8)(x - 6) = 0

Equate each factor to zero and solve for x

x + 8 = 0 ⇒ x = - 8

x - 6 = 0 ⇒ x = 6

However x > 0 ⇒ x = 6 → C

7 0
3 years ago
How do I find x in this problem?
torisob [31]

Answer:

(6-2)×180 = 720

101+154+72+123+145+x=720

595 + x = 720

x = 720-595

x= 125

5 0
2 years ago
The task is in the attachment, thank you​
Novosadov [1.4K]

Answer:

m=0

Step-by-step explanation:

<em><u>mx²+2x-1=0</u></em>

if x=1/2 then

m(1/2)² +2(1/2)-1=0

m/4+1-1=0

m/4=0

m=0

4 0
3 years ago
Other questions:
  • I need help with both questions.
    12·1 answer
  • a farmer has a square field that measures 100 m on a side he wants to irrigate as much of the field as he possibly can using a c
    12·1 answer
  • There are 80 students in a school. Every student is taking either algebra or pre-calculus, and some students are taking both. Th
    15·1 answer
  • The equation of a line is<br> ×+3y=14<br> what is the y-intercept of the line
    5·1 answer
  • 1.5d+3=-4.5 what does D equal
    5·2 answers
  • A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is
    7·1 answer
  • What’s the slope of the line that passes through 5,10 and 7,12
    6·2 answers
  • Which is a correct first step for solving this equation? −5(4x−7)+8=3x
    11·2 answers
  • 1. Which of the following represents the relationship shown in the table below?
    11·1 answer
  • At a large regional collegiate women’s swim meet, an official records the time it takes each swimmer to swim 100 meters for all
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!