Answer: A. The number 23 is prime, but 36 is composite.
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Explanation:
Let's go through the possible answer choices
- A) This is true because 23 only has the factors 1 and 23. So that's why 23 is prime. We can say 36 is composite since 2 is a factor, ie 36 = 2*18.
- B) This is false because 33 is not prime. Note how 33 = 3*11, showing that 3 is a factor of 33.
- C) Similar to B, the statement "21 is prime" is false. Note how 21 = 3*7.
- D) Like the other false statements, 27 is not prime because 27 = 3*9.
Answer: B
Trust me I took the test right now
Answer: 20y - 7.5
(3 - 8y) * (-2.5)
(3 * -2.5) + (-8y * -2.5)
-7.5 + 20y
20y - 7.5
Answer: k=225/2
Decimal form: k= 112.5
Mixed number form: k=112 1/2
Answer:
-3
Step-by-step explanation:
-(-3) = 3
-(-6) = 6
-3 - (-6) = 3
-c - d
c = -3
-3 - d
d = -6
-3 - (-6)
=-3+6
=3
