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Ksju [112]
1 year ago
10

Analytically determine what type(s) of symmetry, if any, the graph of the equation would possess. Show your work.23) 2x^2 -3 = 4

|y|

Mathematics
1 answer:
Korvikt [17]1 year ago
4 0

Answer:

The graph is symmetric about the x-axis, the y-axis, and the origin

Explanation:

A graph can be symmetric about the x-axis, about the y-axis, and about the origin.

To know if the graph is symmetric about the x-axis, we need to replace y by -y and determine if the equation is equivalent. So,

If we replace y with -y, we get:

\begin{gathered} 2x^2-3=4|-y| \\ 2x^2-3=4|y| \end{gathered}

Therefore, the graph is symmetric about the x-axis.

The graph is symmetric about the y-axis if we replace x by -x and we get an equivalent equation. So:

\begin{gathered} 2(-x)^2-3=4|y| \\ 2x^2-3=4|y| \end{gathered}

Since both equations are equivalent, the graph of the equation is symmetric about the y-axis

The graph is symmetric about the origin if we replace x by -x and y by -y and we get an equivalent equation. So:

\begin{gathered} 2(-x)^2-3=4|-y| \\ 2x^2-3=4|y| \end{gathered}

Therefore, the graph is symmetric about the origin.

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1. Flight 202's arrival time is normally distributed with a mean arrival time of 4:30
Bezzdna [24]

Answer:

Step-by-step explanation:

1) Let the random time variable, X = 45min; mean, ∪ = 30min; standard deviation, α = 15min

By comparing P(0 ≤ Z ≤ 30)

P(Z ≤ X - ∪/α) = P(Z ≤ 45 - 30/15) = P( Z ≤ 1)

Using Table

P(0 ≤ Z ≤ 1) = 0.3413

P(Z > 1) = (0.5 - 0.3413) = 0.1537

∴ P(Z > 45) = 0.1537

2)  By compering (0 ≤ Z ≤ 15) ( that is 4:15pm)

P(Z ≤ 15 - 30/15) = P(Z ≤ -1)

Using Table

P(-1 ≤ Z ≤ 0) = 0.3413

P(Z < 1) = (0.5 - 0.3413) = 0.1587

∴ P(Z < 15) = 0.1587

3) By comparing P(0 ≤ Z ≤ 60) (that is for 5:00pm)

P(Z ≤ 60 - 30/15) = P(Z ≤ 2)

Using Table

P(0 ≤ Z ≤ 1) = 0.4772

P(Z > 1) = (0.5 - 0.4772) = 0.0228

∴ P(Z > 60) = 0.0228

6 0
3 years ago
Please help!<br><br> If sin(xº)=cos(yº) find k if x=2k+3 and y=6k+7
USPshnik [31]

answer

10

step-by-step explanation

the equation given is sin(x) = cos(y) with x = 2k + 3 and y = 6k + 7

substitute in 2k+ 3 for x in sin(x) and substitute in 6k + 7 for y in cos(y)

sin(x) = cos(y)

sin(2k + 3) = cos(6k + 7)

we know that sin(x) = cos(90 -x)

sin(2k + 3)

= cos(90 - (2k + 3) )

= cos(90 - 2k - 3)

= cos(87 - 2k)

substitute this into the equation sin(2k + 3) = cos(6k + 7)

sin(2k + 3) = cos(6k + 7)

cos(87 - 2k) = cos(6k + 7)

87 - 2k = 6k +7

80 = 8k

k = 10

7 0
3 years ago
Translate The sum of two consecutive integers is 33
Illusion [34]
The total of two whole numbers one after another is 33. for example 10 + 11 (two consecutive integers) = 21
5 0
3 years ago
Read 2 more answers
Help this is due today.
Vika [28.1K]
Dominic would be the answer because the exponents add together
7 0
3 years ago
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Bond [772]

Answer:

(X - 3)*2

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Step-by-step explanation:

I used X as a replacement for "A number"

Hope this helped a bit

7 0
3 years ago
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