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3 years ago

Which of the following graphs represents a function?

Mathematics

2 answers:

OlgaM077 [116]3 years ago

8 0

You didn’t post graphs to look

4vir4ik [10]3 years ago

7 0

Answer: you didnt post graphs to look at

Step-by-step explanation:

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I don’t understand how to do this

schepotkina [342]

Answer:

The solution is $x =0.$

Step-by-step explanation:

The equation

$\bold{(1).}\: sin(\dfrac{3\pi }{2} +x)+sin(\dfrac{3\pi }{2} +x) =-2$

can be rewritten as

$2* sin(\dfrac{3\pi }{2} +2) =-2$

and can be further simplified to

$sin(\dfrac{3\pi }{2}+x ) =-1$ .

Now, taking the inverse sine of both sides we get:

$sin^{-1}(sin(\dfrac{3\pi }{2} +x) =sin^{-1}(-1)$

$\bold{(2).}\: \dfrac{3\pi }{2} +2 =sin^{-1}(-1)$

The value of the right side on the interval $[0,2\pi)$ is

$sin^{-1}(-1) = \dfrac{3\pi}{2} \: \:( \text{or }270^o)$ ,

which makes the equation (2)

$\dfrac{3\pi }{2}+x =\dfrac{3\pi}{2}$

solving for $x$ gives

$\boxed{x = 0}$

which is our solution.

4 0

3 years ago

Four-ninths of the students at Edison Junior High School walk to school. If 248 students walk to school, how many students atten

Gekata [30.6K]

9514 1404 393

Answer:

558

Step-by-step explanation:

Let p represent the student population at Edison Jr High. Then we know ...

(4/9)p = 248 . . . . . 248 students is 4/9 of the student population

p = 248(9/4) = 558 . . . multiply the equation by 9/4

558 students attend Edison Jr. High.

7 0

3 years ago

Explain how you would graph the line y = 2/3x + 3 using its slope and y-intercept.

Ivahew [28]

Answer:

Slope = 2/3 Y intercept +3

Step-by-step explanation:

Plot the y-intercept (0,+3) in the xy axis. Remember, this point always lies on the vertical axis y.

Starting from the y-intercept, find another point using the slope. Slope contains the direction how you go from one point to another.

The numerator tells you how much steps to go up or down (rise) while the denominator tells you how many units to move left or right (run).

Connect the two points generated by the y-intercept and the slope using a straight edge (ruler) to reveal the graph of the line.

5 0

3 years ago

Read 2 more answers

CAN SOMEONE PLZ HELP

FinnZ [79.3K]

Answer:

File will help, im sure

Step-by-step explanation:

Plz mark as brainliest if correct! Have a nice day!!! 

-Lil G

4 0

3 years ago

WILL GIVE BRAINLEIST DUE AT 9:45 P.M. PLS HURRY SUPER EASY.

Lemur [1.5K]

Answer:

c = 2

Step-by-step explanation:

Since 16 is over the variable c, first multiply both sides by c so the variable is not in the denominator of the fraction.

16/c(c) = 8(c)

16 = 8c Next, divide both sides by 8 to solve for c.

c = 2

6 0

3 years ago