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gulaghasi [49]
2 years ago
7

Is the following relation a function: {(3,2), (3,-2),(1,-4),(-1,2)}​

Mathematics
1 answer:
frez [133]2 years ago
3 0
No as the x value 3 is repeated.
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Tina is saving to buy a notebook computer. She has two options. The first option is to put $500 away initially and save $30 ever
r-ruslan [8.4K]

Answer:

10 months. Each plan will save 800 dollars.

Step-by-step explanation:

500 + 30x = y

300 + 50x = y

You want the months to give the same amount of money. The x has to be the same for both

500 + 30x = 300 + 50x        Subtract 300 from both sides

500 - 300 + 30x = 50x         Combine

200 + 30x = 50x                   Subtract 30x from both sides

200 = 50x - 30x                    Combine

200 = 20x                              Divide by 20

x = 10

So in 10 months time the amounts will be the same. How much will there be?

500 + 30*10 = 500 + 300 = 800

300 + 50*10 = 300 + 500 = 800

6 0
2 years ago
Read 2 more answers
Find the slope for (3,1)and (4,3)
Vaselesa [24]
Y2-y1 / x2-x1

so, 3-1 =2 and 4-3=1
2/1 is 2
3 0
2 years ago
Read 2 more answers
Estimate.<br><br> 2.8 x 9.1
Schach [20]

Answer:

25.50 depending on what you rounding to

Step-by-step explanation:

.

8 0
2 years ago
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O 25<br> о 50<br> о 100<br> X= what
Kruka [31]
What’s the question?
7 0
2 years ago
Can someone help with this question
NikAS [45]
1st : Find the volume of the rectangular block:
12 × 10 × 20 = 2400 cm^3.

2nd : Find the volume of a cylinder
\pi  {r}^{2} h
Where r is radius & h is height.
so:
\pi \times 2.2 {}^{2}  \times 5.0
= 76.02654222 cm^3

Lastly, divide the volume of the rectangular block by the volume of the cylinder
2400 ÷ 76.026 = 31.5679226

You can't round it up so the answer is F) 31
4 0
3 years ago
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