−3x2 - 6x + 1 find (8) Evaluate the function.

Mathematics

2 answers:

Serggg [28]2 years ago

8 0

Answer:

=8−3x2−6xv

Step-by-step explanation:

−3x2−6x+1 find (8)

=−3x2+−6x+8

Brilliant_brown [7]2 years ago

5 0

Answer:

Answer is below

Step-by-step explanation:

Evaluate for x=8

$-3(82)-(6)(8)+1\\-3(82)-(6)(8)+1\\=-239$

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The difference of two integers is thirty. the larger integer is two more than five times the smaller integer. Find the integers

Mnenie [13.5K]

X=2+5y
x-y=30

basically, all you're doing here is solving a system of equations. use the second equation to find out what x or y means. i'm going to solve it for x.

this is the new equation : x=30+y

now i plug this equation into the first one.

30+y=2+5y

30=2+5y-y
30=2+4y
28=4y
y=7

now that you know what y is, take that second equation we did in the beginning and plug in y.

x-7=30

solve for x

x=37

the two integers are 37 and 7.

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2 years ago

where does the graph of the function y=tan(x) have asymptotes? at the values of x where cos(x)=0 at the values of x where sin(x)

Gnom [1K]

Answer: at the values where cos(x) = 0

Justification:

1) tan(x) = sin(x) / cos(x).

2) functions have vertical asymptotes at x = a if Limit of the function x approaches a is + or - infinity.

3) the limit of tan(x) approaches +/- infinity where cos(x) approaches 0.

Therefore, the grpah of y = tan(x) has asymptotes where cos(x) = 0.

You can see the asympotes at x = +/- π/2 on the attached graph. Remember that cos(x) approaches 0 when x approaches +/- (n+1) π/2, for any n ∈ N, so there are infinite asymptotes.