6x + 1 - 5x = 7 when x = 2
To check this answer, you simply need to plug in 2 for x in the original equation.
6x + 1 - 5x = 7
6(2) + 1 - 5(2) = 7
Simplify.
12 + 1 - 10 = 7
Simplify.
13 - 10 = 7
Simplify.
3 = 7
3 ≠ 7 Therefore x does NOT equal 2.
~Hope I helped!~
9514 1404 393
Answer:
15/17
Step-by-step explanation:
cos(arctan(8/15)) = 15/17
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You could assume the ratio values 8 and 15 represent the opposite and adjacent sides of a right triangle. Then the hypotenuse is ...
h = √(8² +15²) = √289 = 17
The cosine is the ratio of the adjacent side to the hypotenuse, so is ...
cos(x) = 15/17
what do u mean by ur question. it doesn't make sense
To determine how many acres would minimize cost, we need to differentiate the expression given and set it to zero and obtain the value of x. We do as follows:
C(x) = 0.2x^2 - 12x +240
C'(x) = 0.4x - 12
0 = 0.4x - 12
x = 30 acres <---------amount of flowers needed to minimize cost
