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gregori [183]
2 years ago
8

Helppp meee please this one confuses me

Mathematics
2 answers:
Andrej [43]2 years ago
4 0

Step-by-step explanation:

==(3x + 2)(x + 1) \\  = 3x(x + 1) + 2(x + 1) \\  =  {3x}^{2}  + 3x + 2x + 2 \\   = {3x}^{2}  + 5x + 2

slega [8]2 years ago
4 0

Answer:

Bro really?? Anyway it's

anyway \: its \: 3x { }^{2}  + 3x + 2x + 2

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In the equation below, for what value of c does x = 4?<br> 1 / (2x + 4) = 3x-c
rodikova [14]

Answer:

Option D.

Jenn's answer is not correct. She got it substituting c=4 into the equation and solving for "x".

Step-by-step explanation:

Given the following equation:

\frac{1}{2}(2x + 4) = 3x-c

Since you need that x=4, you hace to substitute that value into the equation:

\frac{1}{2}(2(4) + 4) = 3(4)-c

Now you need to solve for "c":

\frac{1}{2}(8 + 4) = 12-c\\\\\frac{12}{2}= 12-c\\\\6=12-c\\\\c+6=12\\\\c=12-6\\\\c=6

Therefore for a  a value of c=6, you get x=4

Then, the you can identify that the correct answer is the one given in the Option D.

Jenn made a mistake, because she substituted c=4 into the equation and then solve for "x":

\frac{1}{2}(2x + 4) = 3x-(4)\\\\x+2=3x-4\\\\2+4=3x-x\\\\6=2x\\\\\frac{6}{2}=x\\\\x=3

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3 years ago
Jose is going to watch a movie in his collection. He has 7 action movies, 12 comedies, and 2 dramas.
Arte-miy333 [17]

Answer:

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Step-by-step explanation:

3 0
3 years ago
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Question 7: Please help. What are the coordinates of the point located 35 of the way from point A to point B?
SSSSS [86.1K]

Answer:

(3,-7)? I'm not sure.

3 0
3 years ago
Word problem that can be solved by finding the numbers that have four as a factor
Levart [38]
The cast of finding nemo is going to have a party there will be 80 cookies and 20 juice boxes. Answer: 80-20=40.
3 0
4 years ago
6) A climber is on a hike. After 2 hours she is at an altitude of 400 feet. After 6 hours, she is at an
Bas_tet [7]

Answer:

<em>Her rate of change is 75 ft/h</em>

Step-by-step explanation:

<u>Rate of Change</u>

It measures how one quantity varies with respect to another. The second variable usually is the time.

The climber is hiking. We are given two points of her progress: At 2 hours, she is at 400 ft. This corresponds to the point (2,400).

At 6 hours, she is at 700 ft. This is the point (6,700)

The rate of change is the slope between these two points or the quotient of the variations of each variable:

\displaystyle m=\frac{700\ ft-400\ ft}{6\ h-2\ h}

\displaystyle m=\frac{300\ ft}{4\ h}

m=75\ ft/h

Her rate of change is 75 ft/h

3 0
3 years ago
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