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kari74 [83]
3 years ago
13

Which of the following points are solutions to the equation 3x - 4y - 8 = 12?

Mathematics
2 answers:
Svetach [21]3 years ago
6 0

Sorry I did it wrong.

ivann1987 [24]3 years ago
6 0

Answer:

(0, -5) and (-16, -17)

Step-by-step explanation:

You can plug in the points into the function to test them.

(0, -5)

3(0) - 4(-5) - 8 = 12

20 - 8 = 12

12 = 12

(8, 2)

3(8) - 4(2) - 8 = 12

24 - 8 - 8 = 12

8 ≠ 12

(-16, -17)

3(-16) - 4(-17) - 8 = 12

-48 + 68 - 8 = 12

12 = 12

3(-1) - 4(-8) - 8 = 12

-3 + 32 - 8 = 12

21 ≠ 12

3(-40) - 4(-34) - 8 = 12

-120 + 136 - 8 = 12

8 ≠ 12

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What the answer plz help
ratelena [41]
20 = 40e^-0.1446t
e^-0.1446t = 0.5

t  = ln 0.5 / -0.1446
t =  4.8 days

4 0
3 years ago
I need help with this question ?
lianna [129]

Answer:

C. Move left

Step-by-step explanation:

By default, the equation of the parabola starts at (0,0) and you can see it clearly translates itself to the left by -3 units on the x-axis.

4 0
3 years ago
Shane bought lunch for $5.38 and a shirt for $15.95. He then used the rest of his money to buy a book. He spent a total of $38.1
vovangra [49]
Sense the total would only be $38.12, we would then only want to find out how much would the book be, and that would be it. We would then want to add both how much the shirt and also the lunch was in total, and by doing this, we would the have to subtract this amount from the total that Shane has spent in total.

\boxed{5.38+15.95 = 21.33 \ \sf(the \ amount \ of \ both \ lunch \ and \ shirt)}

As we noted above, we then subtract both this total, and the amount that Shane has spent in this day.

\boxed{38.12-21.33 = \bf{16.79} \Leftarrow \ (the \ cost \ of \ book)}

Your answer: The book that Shane has purchased was a total of only 16.79.

16.79 would be your answer.


6 0
4 years ago
Read 2 more answers
4.2 minutes = 252 seconds <br> True or false?
BlackZzzverrR [31]

Answer:

true

Step-by-step explanation:

Set it up like this:

4.2min*\frac{60seconds}{1min}

The minute label cancels leaving you with seconds.  Multiply 4.2 by 60 to get 252 seconds.

4 0
3 years ago
Paolo is putting a fence around his pool. The length of the pool is 20 feet, the width is (20 minus x) feet, and the area of the
Nat2105 [25]

Answer:

(A) x=5

Step-by-step explanation:

  • The length of the pool is 20 feet,
  • The width is (20 minus x) feet; and
  • The area of the pool is 300 square feet.

Area = Length X Width

300 =20(20-x)

Opening the bracket on the right hand side

300 =400-20x

20x=400-300

20x=100

Divide both sides by 20

x=5

The value of x=5

3 0
3 years ago
Read 2 more answers
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