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
chubhunter [2.5K]
3 years ago
6

Identify the property in this equation: (7th Grade Math) 3 + [7 + (–4)] = (3 + 7) + (– 4)

Mathematics
1 answer:
Gre4nikov [31]3 years ago
3 0

Answer:

Associative Property

Step-by-step explanation:

The brackets moved, so it would be associative

You might be interested in
8 less a number is less than or equal to 17
mylen [45]

Answer:

less than

Step-by-step explanation:

8 is less than 17

3 0
2 years ago
Read 2 more answers
Please help!! will mark branliest
Mashcka [7]

Answer:

a. After the first bounce, the ball will be at 85% of 8 ft. After 2 bounces, it'll be at 85% of 85% of 8 feet. After 3 bounces, it'll be at (85% of) (85% of) (85% of 8 feet).  You can see where this is going. After n bounces the ball will be at

h(n) = (85\%)^n 6ft = (\frac{17}{20})^n(6ft\times 12\frac{in}{ft}) = (\frac{17}{20})^n\times72'

b. After 8 bounces we can apply the previous formula with n = 8 to get

h(8)=(\frac{17}{20})^8\times 72' = 19.62'

c. The solution to this point requires using exponential and logarithm equations; a more basic way would be trial and error using the previous h(n)increasing the value of n until we find a good value. I recommend using a spreadsheet for that; the condition will lead to the following inequality:

1>(\frac{17}{20})^n\times 72 Let's first isolate the fraction by dividing by 72.

(\frac{17}{20})^n  Now, to get numbers we can plug in a calculator, let's take the natural logarithm of both sides:

ln ((\frac{17}{20})^n) < ln \frac 1{72} \rightarrow n\times ln (\frac{17}{20}) < -ln72. Now the two quantities are known - or easy to get with any calculator, replacing them and solving for n we get:

-(0.16)n < - 4.27 \rightarrow n>26.31 Now, since n is an integer - you can't have a fraction of a bounce after all, you pick the integer right after that, or n>27.

7 0
2 years ago
X/2 -15= -7 in verbal expression
Vsevolod [243]
X/2-15=-7
x-30=-14
x=-14+30
x=16
4 0
3 years ago
Which statement is true about vertical angles. 1 point Vertical angles are congruent if two lines are parallel. If vertical angl
Serhud [2]

Answer:

Vertical angles are always congruent.

Step-by-step explanation:

Vertical angles are formed when two straight lines intersect each other, thereby forming two pairs of opposite angles, which are called vertical angles. Thus, a pair of these vertical angles formed are congruent to each other. So therefore, if two angles are said to be vertical angles, it follows that they are congruent to each other.

Using the diagram attached below, we can see two straight lines intersecting each other to form two pairs of vertical angles:

<a and <b,

<c and <d.

Thus, <a is congruent to <b, and <c is congruent to <d.

Therefore, the standby that is true about vertical angles is that:

Vertical angles are always congruent.

8 0
3 years ago
What is the equation of a line with a slope of 3 and contains<br> point (4.1)
cricket20 [7]

Answer:

y = 3x - 11

Step-by-step explanation:

y=mx+b

1=3(4)+b

1=12+b

b=-11

5 0
3 years ago
Read 2 more answers
Other questions:
  • Whats the answer to this question
    9·1 answer
  • At the time of her​ grandson's birth, a grandmother deposited ​$6, 000 in an account. The account was paying 4.5​% interest comp
    10·1 answer
  • Vince had c CDs until he won 21 more in a contest. Write an expression that shows how many CDs Vince has now.
    5·1 answer
  • Mr. pope lost 10 pounds in one month. At the end of the month, he weighed 240 pounds. By what percentage did Mr. Pope decrease h
    12·1 answer
  • What is the value of the median ? <br> 1. 8 <br> 2. 4 <br> 3. 6<br> 4. -4
    12·1 answer
  • Helppppppppppppp i suck at math
    14·1 answer
  • Find the factorization of x2 = 5x + 4.
    9·1 answer
  • An 80–calorie apple is 4% of jeremy’s daily caloric intake. What is Jeremy’s daily caloric intake?
    13·1 answer
  • Convert 4.206 m into mm
    11·2 answers
  • The avrge amount of rainfalls is?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!