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Stolb23 [73]
3 years ago
5

Subtract polynomials: (-4x^3+5x^2-x+3)-5(x^4-2x^3+x^2)

Mathematics
1 answer:
denis-greek [22]3 years ago
8 0

9514 1404 393

Answer:

  -5x^4 +6x^3 -x +3

Step-by-step explanation:

First, eliminate parentheses.

  (-4x^3+5x^2-x+3)-5(x^4-2x^3+x^2)

  = -4x^3 +5x^2 -x +3 -5x^4 +10x^3 -5x^2

Then collect terms.

  = -5x^4 +(-4+10)x^3 +(5 -5)x^2 -x +3

  = -5x^4 +6x^3 -x +3

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Which is a multiple of 15 3,5,55,60​
bazaltina [42]

Remember that multiples are numbers that can be divided by a number without a remainder so in this case you could add 15 by 15 to find what number in this set is a multiple of 15.

15+15=30

30+15=45

45+15=60

=60

Therefore your answer is "60."

Hope this helps.

4 0
3 years ago
Please help!!!!<br><br>CE is tangent to this circle, CD is a radius and ECB=48 what is BAC​
den301095 [7]

Answer:

48degrees

Step-by-step explanation:

From the circle geometry shown, traingle BDC is an isosceles triangle which shows means that their base angels are the same. Hence;

<B = <C

<CBD + <BCD + <D = 180

<BCD + <BCD + <D =180

2<BCD + <BDC = 180

Get <BCD;

<BCD+ <ECB = 90

<BCD + 48 = 90

<BCD = 90 - 48

<BCD = 42degrees

Get <BDC

2<BCD + <BDC = 180

2(42)+ <BDC = 180

84 + <BDC = 180

<BDC = 180 - 84

<BDC = 96

Since angle at the centre is twice that at the circumference, then;

<BAC = 1/2(<BDC )

<BAC = 96/2

<BAC = 48degrees

4 0
3 years ago
Find the vertical asymptote(s) of f (x) = StartFraction x squared minus 1 Over 2 x + 6 EndFraction.
viktelen [127]
<h2>Explanation:</h2>

We have the function:

f(x)=\frac{x^2-1}{2x+6}

The vertical asymptote can be found when the denominator equal zero, therefore:

2x+6=0 \\ \\ 2x=-6 \\ \\ x=-3

So the vertical asymptote occur at x=-3

3 0
3 years ago
Complete the table with values for x or y that make this equation true: 3x+y=15
Ipatiy [6.2K]

Answer:

x=5

y=0

or

x=1

y=12

Step-by-step explanation:

I guess you can make it up as long as it equals 15, I guess that's what the question is saying??

7 0
3 years ago
Simple question <br><br> Find the measure of the angle indicated.
kolbaska11 [484]
52 degrees have a good day:)
7 0
3 years ago
Read 2 more answers
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