I'm taking these lengths as the diameter of this ball.
A ball is in the shape of a sphere.
The formula for finding the volume of a sphere is:
= 0.65
∴ Volume =
= (approx.)
I'll do the first one to get you started.
We want to compare the two fractions 3/4 and 7/8. For now, let's assume they are equal. Chances are they aren't, but we'll assume they are until we know otherwise.
So we have this equation 3/4 = 7/8
Let's cross multiply to get 3*8 = 4*7. Check out the attached image to see what I mean about "cross multiply" if you're not sure.
The equation 3*8 = 4*7 turns into 24 = 28 after you simplify each side. Clearly both sides aren't the same so the equation is not true. Meaning that the original equation 3/4 = 7/8 is not true. The right side of 24 = 28 is larger, so the right side of 3/4 = 7/8 is larger
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Here's how it looks like listed out
3/4 = 7/8
3*8 = 4*7
24 = 28
The right side is larger, so we must change all the equal signs to less than signs
3/4 < 7/8
3*8 < 4*7
24 < 28
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So that is why 3/4 is less than 7/8
Alternatively, you can use your calculator to find that 3/4 = 0.75 and 7/8 = 0.875; comparing 0.75 and 0.875, we see that 0.875 is larger. Therefore 7/8 is larger.
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Answer:
1
Step-by-step explanation:
Change of Y is 0 and change of x is any number.
0/any number = 0
Answer: x= 41
Explanation: Angles 1 and 2 have to equal 180° since they are supplementary. So you put 3x+2x-25=180, you then add like terms. 5x-25=180 Then you have to isolate x, so you add 25 to both sides of the equation. 5x=205, then you divide both sides by 5. So your answer is x=41.
You can check to make sure by plugging in x for 41 .
Hope this helps!