Answer:
4 + 3x
Step-by-step explanation:
Let the number = x
Product of three and a number = 3*x = 3x
Sum of four and 3x = 4 + 3x
Answer: It's cool, it means I get free points :)
Answser: the image of D will be the same drawing (D), translated to the right of the line m.
Explanation:
1) The first reflection, accross the line l, will be the letter<span> D turned (with the "belly" to the left instead of the right), located to the right of the line l and to the left of the line m.
2) The second reflection, accross the line m, will turn the letter again leting it equal to the original picture, now translated to the right on the line m.
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ANSWER
EXPLANATION
The given trigonometric equation is
We factor cos(x) to get:
Apply the zero product property to obtain:
Using the unit circle,
when
and
We know
when
The sine function is negative in the third and fourth quadrants.
Hence the solutions are:
