Answer:
GCF: 20
Step-by-step explanation:
The thing you want to do is factor both numbers down to their lowest primes.
40:2 * 2 * 2 * 5
60:2 * 2 * 5 * 3
Now underline what is in both sets of primes. I'll bold them. The number that is bolded comes from 2 * 2 * 5 which is 20
The highest common factor is 20
14x - 7y = 8
-7y = -14x + 8
y = 2x - 8/7....so ur slope here is 2. A perpendicular line will have a negative reciprocal slope. All that means is flip the slope and change the sign. So we have 2 or 2/1....we flip it making it 1/2....we change the sign making it -1/2. So our perpendicular line will have a slope of -1/2.
y = mx + b
slope(m) = -1/2
(-2,5)...x = -2 and y = 5
now we sub into the formula and find b, the y int
5 = -1/2(-2) + b
5 = 1 + b
5 - 1 = b
4 = b
so the perpendicular line is : y = -1/2x + 4 <==
Answer: 15
Step-by-step explanation: All the information you need is a=3
5a is the same as saying 5xa or 5x3, so there you have it- 15
Hope this helps <3
Answer:
i think 48 is the correct answer
D. 53, 107
The pattern is multiplying the previous number by two and then adding one to it.
