Let's take one side of the two equal lengths as r
third side is s.
so the total perimeter is r + r + s
2r + s = 23
According to the statement of third side s,
5 less than twice the length of one of other
s = 2r - 5
we have 2 equations and 2 unknowns. so we can find out the values of those letters.
2r + s = 23
2r - s = 5
4r = 28
r = 7
s = 9
Therefore the third length will be equal to 9 cm.
B. a perpendicular segment
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Answer:
f(-1) = -1
Step-by-step explanation:
x = -1 falls in the middle segment, where -2 < x < 2. So, the applicable function definition is ...
f(x) = -2x -3
f(-1) = -2(-1) -3 = 2 -3
f(-1) = -1
Answer:
Step-by-step explanation:
Using the slope formula (y2-y1)/(x2-x1), we get (0 - (-2)/(2-0). Simplified, this gets you (0+2)/(2-0). This is equal to 1, which means the slope is one. Putting this into slope-intercept form (y=mx+b), we can plug in (0, -2), getting us -2=0+b. b is equal to -2 then. Thus, the full equation would be y=x-2
ANSWER
EXPLANATION
The given quadratic equation is
This function is of the form:
This implies that:
a=2, b=-4 and c=-3.
We can solve this equation using the quadratic formula:
We substitute the values into the quadratic formula to obtain;