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kotegsom [21]
2 years ago
8

Points on graphs choose all items which are true

Mathematics
1 answer:
Aneli [31]2 years ago
7 0

Answer:

the 3rd 4th and 5th answers are true

Step-by-step explanation:

just substitute the points into the equations.

first equation, substitute the points 2,8 into the equation.  2 + 2(8) = 20.

2 + 16 = 20

18 = 20 is not a true statement.

second equation, substitute the points -1,5 into the equation.  -1 + 2(5) = 10.

-1 + 10 = 10

9 = 10 is not a true statement.

third equation, substitute the points 7,7 into the equation. 2(7) - 7 = 7.

14 - 7 = 7

7 = 7 is a true statement.

fourth equation, substitute the points 7,-7 into the equation. 3(7) + -7 = 14.

21 + -7 = 14

14 = 14 is a true statement.

fifth equation, substitute the points 1, 1 into the equation. 2(1) + 6(1)  = 8.

2 + 6  = 8

8 = 8 is a true statement.

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Doss [256]
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8 0
3 years ago
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Two cubes have their surface areas in the ratio 1:4 , what is the ratio of their volumes ?
yKpoI14uk [10]

Answer:

1 : 8

Step-by-step explanation:

For similar figures with ratio of sides = a : b

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8 0
3 years ago
Perform the indicated operation (-2i+3i)+(-1-4i)
Shtirlitz [24]

Answer:

  -1 -3i

Step-by-step explanation:

It is unusual to have two imaginary terms grouped together like this. Taking the question at face value, we treat i as though it were a variable, and collect terms in the usual way.

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4 0
3 years ago
Can someone answer this what is 3/4 times 3/6 in simpilest form
schepotkina [342]

Answer:

\large\boxed{\dfrac{3}{8}}

Step-by-step explanation:

\dfrac{3\!\!\!\!\diagup^1}{4}\times\dfrac{3}{6\!\!\!\!\diagup_2}=\dfrac{1}{4}\times\dfrac{3}{2}=\dfrac{1\times3}{4\times2}=\dfrac{3}{8}

4 0
3 years ago
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Dafna11 [192]
Multiply -3/11 and -2/15 straight across

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6/165 is your product, or 0.036 (rounded)


hope this helps
5 0
3 years ago
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