Answer:
33 1/3
Step-by-step explanation:
turn to improper for a simpler answer
6 2/3 = 20/3
20/3 ÷ 1/5
whenever you divide fractions, you change the symbol to multiplication and divide with the reciprocal, so you get:
20/3 * 5/1
multiply
20 * 5 = 100
3 *1 = 3
100/3
is equal to 33 1/3
1.
the line of symmetry is x=2, means that the x coordinate of the vertex is x=2.
the point x=2 is the midpoint of the roots
and
.
so
Remark: in the x-axis, if c is the midpoint of a and b, then
2.
since
and
are roots
and
3.
equalizing:
in the left side factorize a, in the left side factorize 8:
![a[(x_1)^{2}-(x_2)^{2}] =8(x_1 -x_2)](https://tex.z-dn.net/?f=a%5B%28x_1%29%5E%7B2%7D-%28x_2%29%5E%7B2%7D%5D%20%3D8%28x_1%20-x_2%29)
in the right side use the difference of squares formula:
simplify by
substitute
with 4:
a=2
Answer: C)2
Answer:
yes
Step-by-step explanation:
Each x-value is only listed once, so the relation <em>is a function</em>.
__
A function maps each x-value to only one y-value. If an x-value is listed more than once (with different y-values), then the relation is not a function.
9514 1404 393
Answer:
- cos(x) = a/c
- sin(x) = b/c
- tan(x) = b/a
Step-by-step explanation:
The mnemonic SOH CAH TOA is intended to help you remember the relationships between triangle sides and trig functions. These abbreviations tell you that ...
Sin = Opposite/Hypotenuse ⇒ sin(x) = b/c
Cos = Adjacent/Hypotenuse ⇒ cos(x) = a/c
Tan = Opposite/Adjacent ⇒ tan(x) = b/a
