Answer:
B. 6x - 12y + 10x
Step-by-step explanation:
A: expression equals 10x - 12y, doesn't equal step 2
B: expression equals 16x - 12y, is the same as step 2
C: expression equals 16x - 30y, doesn't equal step 2
D: expression equals 25x - 30y, doesn't equal step 2
rewrite the expression on the left using the distributive property.
Step-by-step explanation:
Answer:
-8
Step-by-step explanation:
the pattern is times 4
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Answer:
Given a is 5
Step-by-step explanation:
I. Given a is 5
= a + 1
= 5 + 1
= 6
6 is divisible by 3 => true
II. Find 4 + 7a value
= 4 + 7(5)
= 4 + 35
= 39
39 is divisible by 3 => true
III. Prove by
6 ÷ 3 = 3
39 ÷ 3 = 13
Hope that help :)
Answer:
k = 2
Step-by-step explanation:
Given the equations:
g(x) = 3x² + 8x + k
f(x) = 2x - 1
At the intersection point:
g(x) = f(x)
3x² + 8x + k = 2x - 1
3x² + 6x + (k+1) = 0
If there is only one intersection point, the discriminant must be equal to zero:
b² - 4(a)(c) = 0
6² - 4(3)(k+1) = 0
36 - 12(k+1) = 0
36 - 12k - 12 = 0
24 = 12k
24/12 = k
2 = k
