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professor190 [17]
3 years ago
15

Does this graph represent a function? Why or why not?

Mathematics
1 answer:
qaws [65]3 years ago
6 0
The answer to this question is B
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there are 2,300 licensed dogs in clarkson. A random sample of 50 of the dogs in Clarkson shows that 8 have ID microchips implant
algol [13]
Set up a ratio comparing the sample portion to the whole portion.

x= # of all dogs likely to have chip

Sample: 8 out of 50
Whole: x out of 2,300

8/50= x/2300
cross multiply

(50*x)= (8*2300)
50x= 18400

divide both sides by 50
x= 368


ANSWER: 368 dogs in Clarkson are likely to have a microchip.

Hope this helps! :)
7 0
3 years ago
Read 2 more answers
4.
zubka84 [21]

Answer:

See Explanation Below

Step-by-step explanation:

Given

(sin x - cos x)^2 = sec^2x - tan^2x - 2sinx.cos x.

Required

Prove

To start with; we open the bracket on the left hand side

(sin x - cos x)^2 = (sin x - cos x)(sin x - cos x)

(sin x - cos x)^2 = (sin x )(sin x - cos x)- (cos x)(sin x - cos x)

(sin x - cos x)^2 = sin^2 x -sinx cos x - sin xcos x + cos^2 x

(sin x - cos x)^2 = sin^2 x -2sinx cos x + cos^2 x

Reorder

(sin x - cos x)^2 = sin^2 x + cos^2 x - 2sinx cos x

From trigonometry;

sin^2x + cos^2x = 1

So;

(sin x - cos x)^2 = sin^2 x + cos^2 x - 2sinx cos x

becomes

(sin x - cos x)^2 = 1 - 2sinx cos x

Also from trigonometry;

sec^2x - tan^2x = 1

So,  

(sin x - cos x)^2 = 1 - 2sinx cos x

becomes

(sin x - cos x)^2 = sec^2x - tan^2x  - 2sinx cos x

Proved

3 0
3 years ago
The table shows values for the two functions f and g for different values of x.
irina1246 [14]

Answer: C) 1

G(0) = -1

f(g(0)) is f(-1)

f(-1) = 1

so f(g(0)) = 1

Hope it helps

6 0
3 years ago
Read 2 more answers
You start at (-1, 2). You move right 5 units and down 6 units. Where do you end?
Irina-Kira [14]

Answer:

(4,-4)

Step-by-step explanation:

Just plot it or like I did it like this

Since moving right or left is X axis, just add 5 to -1 becuase its ont he X axis

Then for the bottom and up, thats Y so subtract  that to the Y axis so 2-6=-4

4,-4

5 0
3 years ago
What is the difference
azamat

Answer:

4

Step-by-step explanation:

6 0
3 years ago
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