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11Alexandr11 [23.1K]
3 years ago
13

Which of the following expressions are equivalent?

Mathematics
1 answer:
Mnenie [13.5K]3 years ago
6 0

Answer:

1. 6(a + 2)

6a + 12

2. 6a + 12

3. 3(2a + 4)

6a + 12

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I need help finding the answer to this question on edge.
Aliun [14]

Answer:

6

Step-by-step explanation:

We need to evaluate :-

\rm\implies \displaystyle\rm\sum^4_n   (-1)^n (3n + 2 )

Here the \Sigma is the sum operator . And here we need to find the sum from n = 1 to n = 4 . We can write it as ,

\rm\implies (-1)^1 ( 3*1 +2) + (-1)^2 ( 3*2+2) + (-1)^3(3*3+2) + (-1)^4(3*4+2)

Now we know that for odd powers of -1 , we get -1 and for even powers we get 1 . Therefore ,

\rm\implies -1 ( 3 + 2 ) + 1 (6+2)+-1(9+2)+1(12+2)

Now add the terms inside the brackets and then multiply it with the number outside the bracket . We will get ,

\rm\implies -1 * 5 + 1 * 8 + -1*11 + 1*14 \\\\\rm\implies -5 + 8 - 11 + 14 \\\\\rm\implies\boxed{\quad 6 \quad}

<u>Hence</u><u> the</u><u> </u><u>required</u><u> answer</u><u> is</u><u> </u><u>6</u><u>.</u>

6 0
3 years ago
What is the domain of the relation graphed below?
Burka [1]
ANSWER

The correct answer is C

(-5,-4,-3,1,2,5)

EXPLANATION

The ordered pair of the relation are:

(-5,0),(-4,1),(-3,4),(1,-2),(2,4),(5,-3)

The domain is the set of all the x-values for which the function is defined.

These are:

(-5,-4,-3,1,2,5)

Therefore the correct option is C.
3 0
3 years ago
Juan can do 48 jumping jacks in 2 minutes. How many jumping jacks will Juan have completed after 17 minutes?
Serhud [2]

Answer:

384 and a half.

Step-by-step explanation:

Took me a while, but just add 48 for every 2 minutes.

8 0
4 years ago
Help please <br> Evaluate​ f(x) at the given values of x.
mylen [45]

Replace x in the equation of f(x) and solve:


f(0) = sqrt(0) = 0

F(49/9) = sqrt(49/9) = 7/3

6 0
2 years ago
Read 2 more answers
Can you please help me graph the function using intercepts
dexar [7]

See explanation below

Explanation:

The equation: 4x + 3y = -12

To plot the graph using the intercept, we need to find the y and x intercept

To get the y intercept, we replace x with 0

4(0) + 3y = -12

0 + 3y = -12

3y = -12

divide both sides by 3:

3y/3 = -12/3

y = -4

To get the x intercept, we will replace y with 0

4x + 3(0) = -12

4x + 0 = -12

4x = -12

divide both sides by 4:

4x/4 = -12/4

x = -3

Plotting the x and y intercept on the graph:

5 0
1 year ago
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