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sweet-ann [11.9K]
3 years ago
8

Which body system is responsible for exchange of oxygen and carbon dioxide between the body and the atmosphere?

Mathematics
2 answers:
sineoko [7]3 years ago
6 0
D IS THE CORRECT ANSWER
butalik [34]3 years ago
5 0
I believe the answer is d
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How do you solve integers?
Mashcka [7]
Steve woke up with a temp of 102.....later, it was 3 degrees lower. This is telling u to subtract...because it is going lower.
102 - 3 = 99...so now he has a temp of 99
8 0
4 years ago
A truck that can carry no more than 6500 lb is being used to transport refrigerators and upright pianos. Each refrigerator weigh
anyanavicka [17]

Answer:

Equation: 300x+425y= 6500 (if you assume that you would get an exact total)

Answer: Yes, 11 refridgerators and 9 pianos will overload the truck because 11x300=3,300 and 9x425=3,825 which in total equals 7,125, which is way too much for the truck.

An equation that works: 300(10)+425(8)=

Step-by-step explanation:

If each refrigerator is 300 pounds and we need to see if 11 would fit on the truck, multiply 300 times 11 which equals 3,300. Next repeat the same step but for the pianos… 425 times 9 which equals 3,825 now you add. You should get 7,125, meaning this ratio is way to large for the truck to carry.

Since this does not work we should try take away one of each. So let’s say the new rati is 10 refrigerators to 8 pianos. We would repeat the same steps from above. 10x300=3,000       8x425=3,400

If we add these, we get 6,400 so the final expression would be 300(10)+425(8)=6,400 which would be the closest the the most you can transport on the truck.

Sorry if this was not the answer you were looking for, I may have misinterpreted the question.

6 0
2 years ago
Which of the following correctly shows the quadratic formula for the given equation? 3x2 - 6x + 8 = 0
frez [133]
The quadratic formula is expressed as:

x = (-b +/- √(b^2 - 4ac) ) / 2a

where a, b and c are the coefficients of the quadratic equation with the form ax^2 + bx + c=0

Therefore, the quadratic equation would be:

a = 3
b = -6
c = 8

x = (-(-6) +/- √((-6)^2 - 4(3)(8) ) / 2(3)

Hope this helps.

7 0
4 years ago
What is the value of 4 to the power of 3 divided by 2 to the power of 3
sp2606 [1]

Answer:

8

Step-by-step explanation:

4^3/2^3

(4^3)/(2^3)

  1. 4^3 = 64
  2. 2^3 = 8

64/8 = 8

7 0
3 years ago
Read 2 more answers
The area of a mirror is 225 square inches, and it's width is 13 3/4 inches. what is the length of the mirrror?
andreyandreev [35.5K]
A = l x w
225 = l * 13 3/4
225 ÷ 13 3/4 = l * 13 3/4÷ 13 3/4
16 4/11 = l

Length = 16 4/11 inches
4 0
3 years ago
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