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laila [671]
3 years ago
13

I need help for this question

Mathematics
1 answer:
lyudmila [28]3 years ago
3 0
Number8)4n+6-2n=2(n+3) 
4n+6-2n=2n+6 then collect the like terms
(4n-2n-2n=0)
0n=0

2(3b-4)=4b-11
6b-8=4b-11 collect the like terms
(6b-4b=2b)(-11+8=-3)

answer
2b=-3 then divide both sides by 2
b=-1.5
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This is my last question by the way
Leni [432]

Part A:

There are 25 blocks for the length, and the length of each is 5.5 inches. 5.5x25=137.5

There are 9 blocks for the height, and each is 2.75 inches. 2.75x9=24.75

Since we're trying to find how much longer the length is to the width, we find the difference. 137.5-24.75=112.75

So part A answer is <em><u>112.75 (or 112¾)</u></em>

Part B:

We know the length is 137.5 and the height is 24.75. To find how many times longer the length is, we need to divide to see how many 24.75 can go into 137.5.

137.5÷24.75=5.55

So the answer to part B is <u><em>5.55. Given the context, the answer would probably be 5, because that's how many entire height can fit.</em></u>

<u><em /></u>

Sorry if it's wrong lol

8 0
3 years ago
What is a possible volume for this cylinder if the diameter is 8 cm? Explain your reasoning.
lesantik [10]

Answer:

The formula for the volume of a cylinder is pi*r^2*h

r=radius= 1/2 diameter

h= the height

pi=3.14...

just get the height and plug it in

Step-by-step explanation:

5 0
3 years ago
Determine the derivative of f(x) = -5x+3x from first principles first Calculate​
ASHA 777 [7]

Answer:

The derivative of the function f(x) = -5x+3x is ---->  <u>-2</u>

Step-by-step explanation:

8 0
3 years ago
Which equations are in standard form? Check all that apply
professor190 [17]

Answer:

2x + 3y = -6

-4x + 3y = 12

5x + 3y = }

x - y = 5

Step-by-step explanation:

Standard Form is  Ax+By=C.  

2x + 3y = -6, -4x +3y = 12, 5x + 3y = '?', and x - y = 5 are the equations that are in standard form.  

'2x+3 = 6' does not have the 'y' to make it standard form.

'y = 2x + 5' is slope-intercept form.

5 0
4 years ago
Need answers to these please
I am Lyosha [343]

Answer:

The common difference is +6.

Step-by-step explanation:

7-1=6

13-7=6

19-13=6

You should have a general idea of what I'm saying now.

As for the second part, you just add 6 to get the answers. Since it's asking for the next three terms....

25+6=31

31+6=37

37+6=43

Hope this helps! :)

4 0
4 years ago
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