4x+1/3 y^2 what is the value when x=2 and y =3

Mathematics

1 answer:

julsineya [31]3 years ago

6 0

subsitute values

4(2) + 1/3 (3)^2

8 + 1/3 (9)

8 + 3

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24. Which of the following trigonometric expressions is NOT equivalent?

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=sin t/(cos t*(1-cos ²t)/cos t))
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3 years ago

What is the circumference of a circle if the diameter is 12 in

Delvig [45]

Answer:
______________________________________________________
The circumference (in terms of "π") is: " 12π in. " .
__________________________________________________________
The circumference (using "3.14" as an approximation for "π") is: " 37.7 in. " .
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Circumference, "C" = π* d ; (d = diameter = 12 in.);

C = π* d = π * 12 in. = " 12π in. " (in terms of "π").

Or, using the approximation, "π ≈ 3.14" ;

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3 years ago

I need help on this ASAP… Line A passes through the points (-4,5) and (0,2). Line B…

alexgriva [62]

Answer:

Parallel lines: Line B and C

Perpendicular lines: Line A and B; Line A and C

Step-by-step explanation:

To answer this question, we only need to find the slope of each equation. The formula for slope is attached in a picture.

LINE A

Substituting the first line into the formula, we will get...

(2 - 5)/(0 -(-4))

-3/4

LINE B

Substituting the second line's points into the formula we will get...

(2 - 6)/(3 - 6)

-4/-3

4/3

LINE C

Substituting the third line's points into the formula we will get...

(3 -(-1)/(0 -(-3))

4/3

So, parallel lines have the same slope, right? Since line b and line c have the same slope, they are parallel.

And, perpendicular lines have negative reciprocal slopes, right? (reciprocal means x/y -> y/x) Since -3/4 and 4/3 are negative reciprocals of each other, they are perpendicular.

Therefore...

Parallel lines: Line B and C

Perpendicular lines: Line A and B; Line A and C