The ones that match are
1 and 5
2 and 6
7 and 3
8 and 4
The length of side c would be 8.
Step-by-step explanation:
Given that,
a = 4
b = 6
cosC = -1/4
If we are given two sides and angle, the law of Cosines can be used to find the third side:
By inserting the values in the formula, we get
c = 8.
Therefore, the length of side c would be 8.
Note: a² - b² = (a-b)(a+b)
9x² - 16y² = (3x)² - (4y)² = (3x - 4y)(3x + 4y)
Next time please indicate which problem you want to work on.
One example of an equation with variables present on both sides is
y-b = m(x-a). Given the slope of a line and one point (a,b) through which the line passes, you can come up with an equation of the line.
Or, given the numeric value of y-b and that of x-a, you could obtain the slope of the line thru the points (x,y) and (a,b).
Answer:
Isolate the variable by dividing each side by factors that don't contain the variable.
Inequality Form: x
<
3
Interval Notation:
(
−
∞
,
3
)
