Question

Extra Questions

Add the following (verify closure):
1. 8/-21 + 17/42 =?
Multiply:
2. 10/48*-12/25
3. Verify closure property of rational numbers under addition by taking x=7/9 and y=-2/3
4. The product of two numbers is 4/11. If one of the numbers is -8/27 find the other.
5. What should be added to 2/15 so as to get -8/5.
6. Name the properties used:
a)3/4 + -7/8 = -7/8 + 3/4
b)-2/3 + (-4/7+1/14) = (-2/3+-4/7) + 1/14
c)-34/48 * 16/17 = 15/17 * -34/48
d)2/3 * (3/5 * 25/18) = (2/3 * 3/5) * 25/18
e)-2 + 0 = 0 + (-2) = -2
f)4/5 * 1 = 1*4/5 = 4/5
g)-2/3 + 2/3 = 2/3 - 2/3 = 0
h)-6/11 * 11/-6 = 11/-6 * -6/11 = 1
7. Verify commutative property of rational numbers under addition. x=6/7 y=-5/6
8. Verify associative property of rational numbers under addition.
a=3/5 b=1/2 c=-4/5
9. Verify: (x*y)*z=x*(y*z) if x=3/7 y=-1/3 z=5/6​

Answer 1

Answer:

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Answer 2

Answer:

• The process by which green plants turned carbon dioxide and water into food using energy from sunlight is called photosynthesis

Step-by-step explanation:

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