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earnstyle [38]
3 years ago
8

Does this graph represent a function? Why or why not? Sey A. No, because it fails the vertical line test. B. Yes, because it has

two straight lines. C. Yes, because it passes the vertical line test. D. No, because it is not a straight line​

Mathematics
1 answer:
Fittoniya [83]3 years ago
7 0

Answer: it’s A..

Step-by-step explanation:

No, because it fails the vertical line test.

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Name the sets of numbers to which<br> 3/5<br> belongs
Allushta [10]

Answer:

Fractions , Rational numbers ,Real numbers

Step-by-step explanation:

-3/5 is arguably a real number

8 0
3 years ago
A curve in polar coordinates is given by: r=9+3cosθ. Point P is at θ=21π/18 .?
ikadub [295]

Answer:

Step-by-step explanation:

Given that a curve in polar coordinates is given by:

r=9+3cosθ

a) At point P, we have

θ=\frac{21\pi}{18}

Substitute to get

r=9+cos \frac{21\pi}{18}\\=9.3932

b) Cartesian coordinate is

x= rcos \theta=3.6934\\y =r sin \tjeta =8.6365

c) At the origin r =0

when r =0

we have

9+3cos\theta=0\\cos\theta =-3

Since cos cannot take values as -3 it doe snot pass through origin.

6 0
3 years ago
Which of the following best describes the relationship between the variables on the scatter plot below?
CaHeK987 [17]

Answer:

A. negative correlation

Step-by-step explanation:

Let two variables x and y, the correlation coefficient r measure to what degree the variables x and y are related.

--- If this coefficient is positive then the relationship will be positive. This means that even an increase in the variable x will produce an increase in the variable y. In the dispersion diagram the points will be grouped, simulating a line of positive slope.

--- If this coefficient is negative then the relation will be negative. This means that even an increase in the variable x will produce a decrease in the variable y. In the dispersion diagram the points will be grouped, simulating a negative slope line.

In the diagram shown it can be noted that as the variable x increases the variable y decreases.

Therefore it can be concluded that the correlation between x and y is negative. The correct option is option A

4 0
3 years ago
Simplify the expression.<br><br><br> 5.3x - 9 + 7.6x
babunello [35]

Answer:

12.9x-9

Step-by-step explanation:

First you have to combine the like terms which are 5.3x + 7.6x= 12.9x. Then you just rewrite the equation 12.9x-9. You just leave the 9 by it self beacuse thers no other like terms.

7 0
2 years ago
Read 2 more answers
Choose all the answers that apply. Todd drops three balls made of different materials to see how high they will bounce. He drops
iragen [17]

The independent variable is the type of material the balls are made from


6 0
3 years ago
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