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professor190 [17]
3 years ago
7

Identify which property off addition could be used to solve the following problem. Solve the problem and justify how using the p

roperty makes the problem easier to solve.
7.6 + 3.9 + 2.4
Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
4 0

Answer:

The commutative property

Step-by-step explanation:

7.6+3.9+2.4=

7.6+3.9= 11.5+ 2.4= 13.9.

If you added 2.4 and 3.9 first

3.9+2.4= 6.3+7.6=13.9.

It doesn't matter what order you add in, you'll get the same answer

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The first two terms of a sequence are a1 =4 and a2= -2. Let a3 be the third term when the sequence is arithmetic and let b3 be t
stepan [7]

Answer:

a3 + b3 = -7

Step-by-step explanation:

When the sequence is A.P

a1 =4 and a2= -2

Common difference,d = a2 - a1

= -2 - 4

d = -6

a3 = third term

a3 = a1 + 2d

= 4 + 2(-6)

= 4 - 12

= -8

a3 = -8

When the sequence is geometric

a1 =4 and a2= -2

Common ratio, r = a2/a1

= -2/4

r = -1/2

Or

r = -0.5

b3 = third term

b3 = ar²

= 4 * (-1/2)²

= 4 * 1/4

= 4/4

= 1

b3 = 1

a3 + b3 = -8 + 1

= -7

a3 + b3 = -7

8 0
3 years ago
Equivalent ratio of 65:390
den301095 [7]

Answer:

1/6

Step-by-step explanation:

6 0
3 years ago
The expression 2(3x-4)+2(2x+4) represents the perimeter of the rectangle. Which expression is equivalent to the perimeter? Show
kykrilka [37]
2(3x-4)+2(2x+4)
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10x
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Blizzard [7]

X-Axis
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When a figure is flipped over the Y- axis the Y coordinate stays the same while the X axis coordinate’s sign is flipped

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Y axis flipped
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Read 2 more answers
I need help please ASAP lm really stuck on this question
Ludmilka [50]

Answer:

y=2x+3

Step-by-step explanation:

slope is rise over run. goes up to and over one so your slope is 2/1 or 2.

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4 0
3 years ago
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