Step-by-step explanation:
Bringing like terms on one side
2 + 7 - 5 = 2x - 4x
9 - 5 = - 2x
4 = - 2x
4/ - 2 = x
- 2 = x
Answer:
TBH I'm kind of confused on what you are being taught
Step-by-step explanation:
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Answer:
Step-by-step explanation:
12x - 9 = 8x + 7
4x - 9 = 7
4x = 16
x = 4
solution is C
Answer:
(√6)/2 square units
Step-by-step explanation:
The area of a triangle is half the magnitude of the cross product of the vectors representing adjacent sides.
QR = (4-3, -1-(-4), -4-(-5)) = (1, 3, 1)
QS = (3 -3, -5-(-4), -6-(-5)) = (0, -1, -1)
The cross product is the determinant ...

The magnitude of this is ...
|QR × QS| = √((-2)² +1² +(-1)²) = √6
The area of the triangle is half this value:
Area = (1/2)√6 . . . . square units
For number 1a. the answer is 7 to 26 or
7:26 or

For number 2a. the answer is 8 to 28 or
8:28 or

For number 3a. the answer is 12 to 13 or
12:13 or

For number 4a. the answer is 19 to 12 or
19:12 or

For number 5a. the answer is 29 to 10 or
29:10 or

For number 6a. the answer is 11 to 28 or
11:28 or

I just did your homework