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Keith_Richards [23]
4 years ago
12

Find the sum (4x-3x^2+5x^3) + (2x^3- 4x^2+x-1)

Mathematics
1 answer:
emmainna [20.7K]4 years ago
7 0

Answer:

7x^{3} - 7x^{2}  + 5x - 1

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How do you do number 1?
Alla [95]

Answer:

The decimal is not a rational number.

REASON:

A decimal can be a rational number if it fulfills any of the two conditions.

  • Condition 1:

            It must be Terminating. This means that the decimal should have finite number of digits.

  • Condition 2:

        If it is non-terminating decimal it should be Recurring. This means the decimal should repeat itself after some specific digits.

6 0
4 years ago
A farmer has just tilled her 51-yard by 68-yard field. To survey her field, the farmer begins in one corner and walks the length
Bumek [7]

Answer: l +w+ hypotenuse or 204

Step-by-step explanation: so the farmer walks the length then the width of the field then the diagonal which we don't know using pythagorean to find that last side then add the values 51^2+68^2=c^2 and 51+68+85= 204

6 0
3 years ago
What is the y intercept
Gemiola [76]

Answer:

Y intercept is the value of y when x is equaled 0.

Step-by-step explanation:

Slope intercept form is

y = mx + b

In this equation, b is the y intercept.

6 0
3 years ago
I need help on this question
kherson [118]

Answer:

CA = opposite

BA = adjacent side

AC = hypotenuse

7 0
3 years ago
If 2 liters of sea water contain 70 grams of salt, how much salt is in 32 liters of sea water?
OLga [1]

Answer:

1120 grams

Step-by-step explanation:

The amount of sea water is directly proportional to the amount of salt in the water.

Let the amount of sea water be W and the amount of salt be S.

This means that:

W α S

=> W = kS

where k = constant of proportionality

2 liters of sea water contain 70 grams of salt Therefore:

2 = k * 70

k = 2 / 70 = 1/35

Therefore, for 32 liters of sea water:

32 = 1/35 * S

S = 35 * 32

S = 1120 grams

There are 1120 grams of salt in 32 liters of water.

5 0
3 years ago
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