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Irina-Kira [14]
3 years ago
15

How do I solve this?

Mathematics
2 answers:
Cerrena [4.2K]3 years ago
7 0

Answer:

23

Step-by-step explanation:

put 3 in place of x and solve.

Arisa [49]3 years ago
5 0

Answer:

f(3) = 23

Step-by-step explanation:

To evaluate f(3) substitute x = 3 into the expression

f(3) = 2(3)² + 5\sqrt{3-2}

     = (2 × 9) + (5 × \sqrt{1})

    = 18 + (5 × 1) = 18 + 5 = 23

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Write an equation of the line that passes through (−1,3) and is parallel to the line y=2x+2.
MA_775_DIABLO [31]

The equation of the line that passes through (−1,3) and is parallel to the line y = 2x + 2 in slope intercept form is y = 2x + 5

<h3><u>Solution</u>:</h3>

Given that line passes through (-1, 3) and parallel to line y = 2x + 2

We have to find the equation of the line

Let us first find the slope of the line

<em><u>The slope intercept form of line is given as:</u></em>

y = mx + c  ---- eqn 1

where "m" is the slope of the line and "c" is the y-intercept

Comparing the given line equation y = 2x + 2 with y = mx + c,

We get slope "m" = 2

The slope of parallel lines are equal

Hence slope of the line which is parallel to y = 2x + 2 is also 2

Now let us find the equation of line with slope "m" = 2 and passes through point (-1, 3)

Substitute (x, y) = (-1, 3) in eqn 1 to find value of "c"

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c = 5

Now substitute "c" = 5 and m = 2 in eqn 1 to get equation of required line

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4 0
3 years ago
Needed help asap please and thank you so much !
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27.4% of the participants took 1 vitamin.

49.5% of the participants took more than 1 vitamin.

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8 0
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Calculate the answer to the appropriate number of significant figures. (do not convert to scientific notation) 6.47 x 64.5
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Answer:

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