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3 years ago

From a to D which graph represents a function ? And why ?

Mathematics

1 answer:

tatiyna3 years ago

5 0

Option D I believe because it is the only one that passes the vertical line test (the test that for every X value, there is only 1 Y value).

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HELP ASAP question 5!!!

AnnyKZ [126]

Step-by-step explanation:

Total area of merged figure = area of vertical rectangle + area of horizontal rectangle.

$\therefore \: 3x(2x - 7) + (3x + 4)x = 85 \\ \\ \therefore \: 6 {x}^{2} - 21x+ 3 {x}^{2} + 4x = 85 \\ \\ \therefore \: 6 {x}^{2} + 3 {x}^{2} - 21x + 4x - 85 = 0 \\ \\ \huge \red {\boxed {\therefore \: 9 {x}^{2} - 17x - 85 = 0}} \\ hence \: proved.$

8 0

2 years ago

Read 2 more answers

Find the volume of a right circular cone that has a height of 6.7 in and a base with a diameter of 8.8 in. Round your answer to

N76 [4]

Answer: 135.8

Step-by-step explanation:

the formula for this is πr²H/3

π4.4^2x6.7/3

407.5/3

135.8

4 0

2 years ago

What is the product of StartFraction 7 Over 9 EndFraction and One-fourth?

Paha777 [63]

Answer:cause

Step-by-step explanation:

7 0

3 years ago

Please help me :((((((((((((((((((((((((((

Rainbow [258]

Step-by-step explanation:

x = 51.5

I'm am not sure about it since in the case it is not given that how much miles he walk in total so.

I just added the no. of miles he walk in part A and B so I got x = 51.5

hope this answer helps you dear...take care and stay safe!

5 0

2 years ago

What is the solution of the system? Use elimination. 7x + 5y = 19 −7x − 2y = −16

netineya [11]

Make the coefficient of y the same in both equations:

To do this, multiply equation one by 2, and equation two by 5 (this will make the coefficient 10 in both).

14x + 10y = 38
-35x - 10y = -80

Eliminate the y variable by adding the equations from each other

(14x + 10y = 38)
+ (-35x - 10y = -80)
= -21x + 0y = -42

We now have -21x = -42. The y variable has been eliminated.

Solve for x

-21x = -42

Divide both sides by -21 to get x on its own.

x = 2

Substitute x into the equation to find y.

7*2+5y=19

14+5y=19

Subtract 14 from both sides.

5y=19-14

5y=5

Divide by 5 on both sides to get y on its own.

y=5/5

y=1

The answer is (2,1)

8 0

3 years ago