Which of the following is a necessary reactant for cellular respiration to occur?Carbon dioxide

Nitrogen

Oxygen

Water

Answers

Answer 1

Answer: The reactant necessary for cellular respiration to occur is oxygen. Cellular respiration, in a sense, is breaking down sugar in the presence of oxygen. During cellular respiration, sugar is broken down to carbon dioxide and water and ATP is made. ATP is then used for cellular work.

Answer 2

Answer: The answer is oxygen and glucose they are both necessary for cellular respiration to occur

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2y = x + 3 5y = x - 7 What is the solution set of the given system?

Answers

2y = x + 3 then x = 2y - 3
5y = x - 7 then x = 5y + 7

so
2y - 3 = 5y + 7
2y - 5y = 7 + 3
-3y = 10
y = -10/3
y = -3 1/3

2y = x + 3
2 (-10/3) = x + 3
-20/3 - 3 =x
-29/3 = x
-9 2/3 =x
or
x = -9 2/3

solutions: x = -9 2/3 and y = -3 1/3

Answer: the solution set would be {(-29/3, -10/3)}

Step-by-step explanation:

Help on geometry. Please

Answers

Answer:

AC<AB+BC

If you were to flatten out the distance AB and BC, logically speaking, you'd get a larger distance than the distance AC.

The function h(x)=x^2+3 and g(x)=x^2-6. if g(x)=h(x)+k, what is the value of k?

Answers

$x^2-6=x^2+3+k\n k=-9$

g(x) = x² - 6
h(x) = x² + 3

  g(x) = h(x) + k
  x² - 6 = (x² + 3) + k
  x² - 6 = x² + 3 + k
- x² - x²
-6 = 3 + k
- 3 - 3
-9 = k

The value of k is -9.

a club decides to sell t-shirts for $15.00 as a fundraiser. it costs $20.00 plus $9.00 per t-shirt to make the t-shirts. write and solve an equation to find how many t-shirts the club needs to make and sell in order to profit at least $150.00

Answers

the club would have to sell at least 6 t-shirts.

The area of a circle is 9pi square meters. What is the circumference?

Answers

circumference of a circle=2πr

area=πr²

1) we calculate the radius of this circle.
Data:
area=9π m²
area=πr²

9π m²=πr²
r²=9π m² / π
r²=9 m²
r=√(9 m²)=3 m

2) we calculate the circumference:
circumference=2πr=2π(3 m)=6π m

Answer: the circumference is 6π m

It 3:00 here, and Australia is 13 hours ahead of us what time is it in Australia?