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Amanda [17]
3 years ago
5

Help and explain how

Mathematics
1 answer:
vaieri [72.5K]3 years ago
6 0

Answer:

Table shows a direct variation.

Step-by-step explanation:

For the direct variation equation representing the table will be in the form of,

y = kx

Where 'k' is the proportionality constant.

From the table attached,

For x = -10 and y = -20,

-20 = k(-10)

k = 2

For x = 1 and y = 2

2 = k(1)

k = 2

For x = 2 and y = 4,

4 = 2k

k = 2

For all points given in the table 'k' is same or constant.

Therefore, relation represented by the table shows a direct variation.

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Fynjy0 [20]
-4 could be the sum of four consecutive integers...I bet
4 0
3 years ago
Kali’s piano practice begins at 4:10pm. She practices for 1 hour 15 minutes. Then she spends 40 minutes helping her mom with lau
vitfil [10]

Answer:

7:05p.m.

Step-by-step explanation:

4:10                            5:25

+1:15                         +0:40

_____                  ________

5:25                       6:65

You can't have a 65 in time so you add the 60 min to the hour (60min=1hr). So that makes 7:05

3 0
3 years ago
Which of the following sets of data does NOT represent a function?
yan [13]
Set B has 2 of the same Y values which makes it not a function.
6 0
2 years ago
Identify the discontinuity and zero of the function f(x)= 4x/x^2-16
Oduvanchick [21]

Answer:

Step-by-step explanation:

ANSWER

Point if discontinuity:  

{x}=  \pm3

Zero of the function is  

x = 0

EXPLANATION

The given rational function is:

f(x) =  \frac{3x}{ {x}^{2}  - 9}  

This function is not continous when  

{x}^{2}  - 9 = 0

{x}=  \pm \sqrt{9}  

{x}=  \pm3

The function is zero when,

3x = 0

x = 0

6 0
3 years ago
Read 2 more answers
Together, Sarah's two cats have the same mass as her dog, 11 kg. The mass of one cat is
levacccp [35]
First, lets do all calculations in kg. 1kg=1000 grams
Lets set 1 cat's mass as x.
Lets set the other cat's mass as y.
1) x+y=11
2) y=x+1.5   

Lets plug eq 2 into eq 1.
x+x+1.5=11
2x+1.5=11
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x=4.75 kg

If one cat weighs 4.75 kg, then the other must weigh 6.25 kg.




6 0
3 years ago
Read 2 more answers
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