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yuradex [85]
2 years ago
12

I really need help with this please

Mathematics
1 answer:
Tcecarenko [31]2 years ago
4 0

Answer:

3x

Step-by-step explanation:

a = 4x - 4

The perimeter is equal to 14x + 8 but it is also equal to 2a + 2b, so

14x + 8 = 2(4x - 4) + 2b

14x + 8 = 8x - 8 + 2b

Let's move 2b to the other side of the equation, we get:

14x + 8 - 2b = 8x - 8

Now, let's move 14x + 8 to the other side too to find what -2b is equal to

-2b = 8x - 14x + 8 - 8

Gonna simplify:

-2b = -6x

Now, let's multiply both sides with -1 to find what 2b is equal to

-2b * -1 = -6x * -1

2b = 6x

Now, we know that 2*b is equal to 6x, but we need to find what side b is equal to, so we gonna divide 6x by two to get what b is equal to

2b = 6x

b = 3x

Side b is equal to 3x

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Which relation is a function? A. X -14,-9-1,4,6 Y 6,2,-3,2,4 B. X -2,1,9,9,15 Y -3,-3,0,-8,12 C. X -4,6,6,7,9 Y -1,-3,-1,15,1 D.
Butoxors [25]
❅☃ To find a function you need to look at the x values, if one of the same x value is repeated more then once, it is considered a non function.
❅☃ Option A:
-14
-9
-1
4
6
As you can see no repeated values.
Therefore A is already our function but lets look at the others just in case. 
❅☃ Option B
-2
1
9
9
15
9 was repeated therefore it is a non function.
❅☃ Option C
-4
6
6
7
9
6 was again repeated. Non function.
❅☃ And lastly, D.
-16
-11
10
10
16
10 was reapted. Non function.
❅☃ Your answer is A
8 0
3 years ago
There are 32 girls and 17 boys what percent of the class are girls
gulaghasi [49]
Given that there are 32 girls and 17 boys, the total number of students in the class is 49. In order for us to know the percent of the girls in class, what we are going to do is to simply divide 32 by 49 and then multiply by 100 and the answer is 65.3%. Hope this answers your question.
8 0
3 years ago
Can someone help me????
SpyIntel [72]
Lemme think bout it....no
5 0
3 years ago
What is the sum of the first 10 terms of the sequence 2, 6, 18,54...?
leonid [27]

Answer:

This is a sequence where you <em>multiply that number 3 times</em>.  For example, 2 x 3 = <em>6</em>.  6 x 3 = <em>18</em>.  18 x 3 = <em>54</em> and so on.  Therefore, <em>multiplying 3 by the number is the Answer.</em>

<em></em>

4 0
3 years ago
Find the lateral area ​
Dahasolnce [82]

Answer:

228

Step-by-step explanation:

3 0
2 years ago
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