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Novosadov [1.4K]
3 years ago
12

Which describes the role of oxygen in photosynthesis? A. It is a reactant, so it is released by the plant. B. It is a product, s

o it is released by the plant. C. It is a reactant so it enters the plant. D. It is a product, so it enters the plant. ​
Mathematics
1 answer:
pentagon [3]3 years ago
8 0

Answer:

B) It is a product, so it is released by the plant.

Step-by-step explanation:

- Plants release oxygen for humans and humans give carbon dioxide to plants.

- The role of oxygen in photosynthesis is a waste product.

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Prove the following using a direct proof:
hodyreva [135]

Answer:

Step-by-step explanation:

Prove: That the sum of the squares of 4 consecutive integers is an even integer.

An integer is a any directed number that has no decimal part or indivisible fractional part. Examples are: 4, 100, 0, -20,-100 etc.

Selecting 4 consecutive positive integers: 5, 6, 7, 8. Then;

5^{2} = 25

6^{2} = 36

7^{2} = 49

8^{2} = 64

The sum of the squares = 25 + 36 + 49 + 64

                                       = 174

Also,

Selecting 4 consecutive negative integers: -10, -11, -12, -13. Then;

-10^{2} = 100

-11^{2} = 121

-12^{2} = 144

-13^{2} = 169

The sum of the squares = 100 + 121 + 144 + 169

                                     = 534

Therefore, the sum of the squares of 4 consecutive integers is an even integer.

8 0
3 years ago
Plz awnser :) but explain i actually wanna know how to do this. long division, 1300÷15=?
chubhunter [2.5K]
(Divide) 1,300÷15=86.6666666667
6 0
3 years ago
What is the equation for the sum of half a number and two-thirds of the number is less than 14?
cupoosta [38]

1/2x+2/3x<14

3/6x+4/6x<14


7/6x<84/6

x<504/42

x<12

5 0
3 years ago
Cole got 100 for his birthday. He can either save the money or buy a tennis racket with it. What is the opportunity cost if he b
hodyreva [135]
Cole can learn how to play tennis. But if he saved the money, he can save up and get something bigger, or save up for college. There is only so much he can do with a tennis racket except for using it to learn a new sport.
8 0
3 years ago
The length of a rectangular garden is 5m greater than its width. The area of the garden is at least 45m^2. What are the possible
Sonbull [250]

Answer:

the garden can be at the lest 4.7 x 9.7 from there its X times X+5

Step-by-step explanation:

8 0
3 years ago
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