Question

Which expression is a factor of 4ab + 4a – 3b – 3?

b – 1

4a – 3

3b + 1

4a + 3b

Answer 1

i got b

Answer 2

@mathstudent55

Answer 3

@mathstudent55

Answer 4

when you split in two you have

4a(b+1) - 3(b+1)

Answer 5

that is equal to (4a-3)(b+1)

Answer 6

so i was right?

Answer 7

so b is correct, the factors are (4a-3)(b+1)

Answer 8

y varies inversely as twice x. When x = 3, y = 6. What is the value of y when x = 9?

6

3

2

9

Answer 9

i got c

Answer 10

yes answer is 2

Answer 11

Inverse variation is:
y = k/x for some constant k.
Here it varies with twice x, so we have
The given point allows us to calculate k:

y = k/(2x)
6 = k/(2 * 3)
k = 36

The function is
y = 36/(2x)
y = 18/x

When x = 9,

y = 18/9 = 2
Answeer is C.

Answer 12

yess :)

Answer 13

i asked another

Answer 14

sure