For number 3, write something along the lines in your own words like The risks involved in the use of condoms in combating the spread of HIV and AIDS is the condom can break, the condom can be slipped off without knowledge, and the condom does not protect from oral sex.
The number sentence that applies the commutative property to the example is 4 × 3 = 12
<h3>Commutative property</h3>
Commutative property can be additive or multiplicative. It is a way of changing the position of a function or value in an expression without affecting the result
Examples are
A +B = B +A
AB = BA
Although the value were interchanged, the result were not affected. Hence the number sentence that applies the commutative property to the example is 4 × 3 = 12 since changing 3 and 4 does not affect the result
Learn more on commutative property here: brainly.com/question/778086
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Answer:
r=3
Step-by-step explanation:
3(r - 7) = 4(2 - 2r) + 4
Distribute
3r -21 = 8 -8r +4
Combine like terms
3r -21 = 12 -8r
Add 8r to each side
3r +8r-21 = 12 -8r+8r
11r -21 = 12
Add 21 to each side
11r -21+21 =12+21
11r = 33
Divide each side by 11
11r/11 = 33/11
r = 3
Answer:
C. (n₁ + n₂ - 2) degrees of freedom
Step-by-step explanation:
The t-test for difference between two mean when variance are equal is:
where ,
= Mean of Sample 1
= Mean of Sample 2
s = standard deviation
n_1 = size of Sample 1
n_2 = size of Sample 2
and t is Student's t-test with (n₁ + n₂ - 2) degrees of freedom.
Answer:
z<=3
Step-by-step explanation:
6z<=18
z<=18/6
z<=3
