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scZoUnD [109]
3 years ago
5

12. What value of c would make x = 4 in the equation 5 + cx = 13 ?

Mathematics
1 answer:
Pavel [41]3 years ago
4 0
Plug in 4 for x and solve equation like so. c=2

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Drag and drop an answer to each box to correctly explain the derivation of the formula for the volume of a pyramid.
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Population density is the number of people per unit of area. What is the population density of a state that has 1627260 people i
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6 0
3 years ago
What error did zacharias make?
qwelly [4]
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7 0
3 years ago
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Please please help. I have a bunch of these and I don’t understand it at all
shtirl [24]
The correct option is: Option (B) \sum_{i=1}^{7} (5i-2)

Explanation:

First thing is that the difference between each number in the series with the next number is 5. It means it must be the multiple of 5. There are two options that contain multiples of 5: Option B and Option D. Now in the option D, the upper limit is 6. If we put 6 in the expression: 5(6)-2, the last term would be 28. However in the series given in the question, the last term is 33. Hence 5(7) - 2 = 35 - 2 = 33 which is Option B.

When i=1: 5(1)-2 = 3
When i=2: 5(2)-2 = 8
When i=3: 5(3)-2 = 13
.
.
When i=7: 5(7)-2 = 35-2 = 33
Hence the correct option is (B).
3 0
3 years ago
How can you use 4s facts to find 7*8
Luda [366]
 
→4(2)  which can be referred to as 4 + 4 

→14 (4)<span>= 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 </span>  which also equal  to → 4  + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 +4 + 4 +4 +4 + 4 +4 +4 
5 0
3 years ago
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