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kkurt [141]
2 years ago
14

Urgent! Pls Answer it If a=2, b=-2 find the value 2a²b+2ab²+ab

Mathematics
2 answers:
dimaraw [331]2 years ago
5 0
Hope you understand it!

ozzi2 years ago
3 0

Given that:

a=2, b=-2

Substituting these values,

2a^{2} b+2ab^{2} +ab

=  > 2 \times ({2} \times 2) \times ( - 2) + 2 \times 2 \times ( - 2 \times  - 2) + (2 \times  - 2)

=  > 2 \times 4 \times ( - 2) + 4 \times 4 + ( - 4)

=  > 8 \times ( - 2) + 16 + ( - 4)

=  >  - 16 + 16 +  (- 4)

As first two 16's will be cancelled as they have opposite signs, so, the remaining is,

- 4

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(Will award Brainlies & many many points, please help!)
iren [92.7K]

Answer:

B] f(n) = 6(3)n − 1; f(5) = 486

Step-by-step explanation:

First, you have to identify which type of relation the points have. From the graph you can tell that it's an exponential growth. The x values change in the same amount every time, in this case by 1.

So if the relation is exponential, if we divide the y coordinates you should get the same result every time.

18 / 6 = 3

54 / 18 = 3

162 / 54 = 3

So the y value increases 3 times. That means that the next value should be 162*3 = 486.

3 0
2 years ago
Read 2 more answers
If four of the exterior angles of a convex pentagon measure
MakcuM [25]

Answer:

120 degrees.

Step-by-step explanation:

The 5 exterior angles sum to 360 degrees.

So the 5th exterior angle = 360 - 4(60)

= 360 - 240

= 120 degrees.

3 0
3 years ago
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A shelter has enough food to feed an average of 80 hungry people a day for 14 days. If an average of 32 people are at the shelte
egoroff_w [7]

Multiply 80 by 14 to get how many total people they can feed.

80 times 14 is 1120.

Now, divide 1120 by 32 to get how many days the food will last if 32 people come every day.

1120/32 = 35.

The answer is B, 35 days

4 0
3 years ago
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How do i do this and tell me how u got the answer
EastWind [94]
Substitute.
2x+(2x -15) = -3

4x -15 = -3
Add 15 to both sides

4x = 12

Divide by 4

X=3

2(3) + y = -3

6+y=-3
-6 from both sides
Y=-9

(3,-9)
3 0
3 years ago
ben earned 45 dollars mowing lawns. he worked 3.2 hours on monday and 4.3 hours on tuesday. how much did he earn per hour?
dlinn [17]

Answer:

6 dollars per hour

Step-by-step explanation:

We can set up and solve an equation to answer this question. For this problem, let x stand for the amount he earned per hour. The equation that represents this situation is 3.2x + 4.3x = 45. The first term represents monday and the second represents tuesday. When these add up they should equal 45 because that is the total amount he made. To find his pay per hour, solve for x.

First, combine the like terms

  • 7.5x=45

Next, divide both sides by 7.5

  • x=6
3 0
2 years ago
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