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tigry1 [53]
3 years ago
11

3.5x^3-2.3x^2+1.4x+15.6-1.2x^3+4.5x^2-0.3x-3.2

Mathematics
1 answer:
Kamila [148]3 years ago
8 0

Answer: 12.4 + 1.1x + 2.2x^2 + 2.3x^3

Step-by-step explanation:

add the like variables

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3/8-12/8= -9/8, 9/16-12/16= -3/16, -18/16--3/16= --21/16 I think this is correct
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Which answer is equivalent to log 10 ? <br> 10<br> 1<br> 0<br> 100
Tatiana [17]
Hello : here is the solution : 
<span> log 10 = 1</span>
8 0
3 years ago
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The price of an item yesterday was $180. Today, the price rose to $279. Find the percentage increase.
wel

Step-by-step explanation:

Percentage increase = (279 - 180)/180 x 100% = 55%

this is a topic on percentage. the above question requires a use of a kind of formula if you wish to explore more into this topic you can give me a follow on Instagram (learntionary) I've already posted some notes on this topic and will be doing more on others and also I'll be providing tips on some topics as well!

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Select all that apply. In a linear function: Δy = 0 Δx = 0 Δy = n Δx = n Δy = -n Δx = -n
DENIUS [597]
Answers: All the options are right and have a special meaning.

Explanation:

1) <span>Δy = 0

Means y is constant, which is also that the slope is zero.

The function is a horizontal line (paralell to the x-axis)

2) Δx = 0

Means x is constant, the slope is not defined (∞).

The function is a vertical line (parallel to the y-axis)

3) Δy = n

Means that the change in y is constant. So, only if the change in x is also constant the slope is constant and the function is linear.

This is because the slope is Δy / Δx.

4) Δx = n

Means the change in x is constant. So, only if Δy is constant it is a linear function, for the same reason explained above

5) Δy = -n and and 6) Δx = -n

Same reasoning of 3 and 4.
</span>
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3 years ago
Prove that 1 by sec theta + tan theta equals to 1 minus sin theta by cos theta ​
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Answer:

the answer is in the photo.

hope it helps.

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3 years ago
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