The two angles are vertical angles and are identical.
Set them equal to each other and solve for y:
5y = 115
Divide both sides by 5:
y = 115/5
y = 23
Answer: y = 23 degrees.
Answer:
-2x^2-5x-3
Step-by-step explanation:
(3x^2 – 3x+6) - (5x^2 + 2x + 9)
Distribute the minus sign
(3x^2 – 3x+6) - 5x^2 - 2x - 9
Combine like terms
3x^2 -5x^2 -3x-2x +6-9
-2x^2-5x-3
You have to find the slope of the line. It will give you the conversion rate from inches to centimetres or the other way around.
Looking closely at the graph, or using a ruler as reference, you can estimate that 30 cm ≈ 12 in. In terms of the graph, the line very nearly passes through the point (12, 30). It also passes through the origin, (0, 0), since 0 cm = 0 in exactly.
The slope of the line is then
which means that 1 in ≈ 2.5 cm.
So, if Sarah's height is 64 in, we convert this to cm and find her height is (approximately)
Answer:
If you have to solve for v, it's v<-1
interval notation: (- ∞, -1)
Step-by-step explanation:
It helps if you have an example, like f(x) = 2x+3
What you typically do, is:
- draw xy axis, label them (ie., 1,2,3,4 along both axes)
- calculate the f(x) values for several x (e.g., -2, 0, 1, 3, doesn't matter).
- plot the calculated values as points. The calculated f(x) is your y value.
- sketch a smooth line through the points. It helps if you know in advance if the line is going to be straight or curved.
- The more points you calculate, the more accurate your graph will be
