A. Not a proper counterexample as 3 and 5 aren't the same number. We can rule out choice A.
B. We can rule out choice B since we're not multiplying here
C. We are multiplying the same value with itself but the result is even. We can rule this out.
D. This is a proper counter example. We have the same number (5) multiplied by itself leading to a result that is not even. It contradicts the initial claim.
Answer: Choice D
Answer:
3 + (5 + 7) = (3 + 5) + 7
Associative property
(3){5(7)} = (3){7(5)}
Commutative Property
5 + 0 = 5
Identity Property
Step-by-step explanation:
Answer:
<h3>
A. A = 66π cm² ≈ 207.35 cm²</h3><h3>
B. No, will not. {will be less than double}</h3><h3>
C. No, will not. {will be more than double}</h3>
Step-by-step explanation:
<h3>
A.</h3>
h = 8 cm, r = 3 cm
A = 2×πr² + 2πr×h = 2πr×(r + h)
A = 2π×3×(3 + 8) = 66π cm² ≈ 207.35 cm²
<h3>
B.</h3>
h = 2×8 = 16 cm , r = 3 cm , 2×66π = 132π cm²
A = 2π×3×(3 + 16) = 114π cm² ≠ 132π cm²
<h3>
C.</h3>
h = 8 cm , r = 2×3 = 6 cm , 2×66π = 132π cm²
A = 2π×6×(6 + 8) = 168π cm² ≠ 132π cm²
The correct answer is B) m=-8
First, add 9 on both sides of the equation. You should end up with 4m=-32.
Next, divide both sides of the equation by 4. You should end up with m=-8. (A negative divided by a positive equals a negative)
Hope this helps! Have a great day ;)
Answer:
(sec θ - tan θ)²
= sec² θ –2 sec θ tan θ + tan² θ
