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castortr0y [4]
3 years ago
15

Multiply (5x^2-3x)(8x^2+4x

Mathematics
2 answers:
erastova [34]3 years ago
6 0

Ans

40x^4-4x^3-12x^2

Step-by-step explanation:

5x^2(8x^2+4x)-3x (8x^2+4x)

40x^4+20x^3-24x^3-12x^2

40x^4-4x^3-12x^2

Step2247 [10]3 years ago
3 0

Hope it will help u......

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X is directly proportional with Y write an equation that shows the relationship if y equals 6 and x equals one
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Y=X+5 OR Y=6X CAN BE A EQUATION BUT YOU CAN FORM SOME MORE ALSO
7 0
3 years ago
F(x) = 3x + x3
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Answer:

Please check the explanation.

Step-by-step explanation:

Given

f(x) = 3x + x³

Taking differentiate

\frac{d}{dx}\left(3x+x^3\right)

\mathrm{Apply\:the\:Sum/Difference\:Rule}:\quad \left(f\pm g\right)'=f\:'\pm g'

=\frac{d}{dx}\left(3x\right)+\frac{d}{dx}\left(x^3\right)

solving

\frac{d}{dx}\left(3x\right)

\mathrm{Take\:the\:constant\:out}:\quad \left(a\cdot f\right)'=a\cdot f\:'

=3\frac{d}{dx}\left(x\right)

\mathrm{Apply\:the\:common\:derivative}:\quad \frac{d}{dx}\left(x\right)=1

=3\cdot \:1

=3

now solving

\frac{d}{dx}\left(x^3\right)

\mathrm{Apply\:the\:Power\:Rule}:\quad \frac{d}{dx}\left(x^a\right)=a\cdot x^{a-1}

=3x^{3-1}

=3x^2

Thus, the expression becomes

\frac{d}{dx}\left(3x+x^3\right)=\frac{d}{dx}\left(3x\right)+\frac{d}{dx}\left(x^3\right)

                    =3+3x^2

Thus,

f'(x) = 3 + 3x²

Given that f'(x) = 15

substituting the value  f'(x) = 15 in f'(x) = 3 + 3x²

f'(x) = 3 + 3x²

15 =  3 + 3x²

switch sides

3 + 3x² = 15

3x² = 15-3

3x² = 12

Divide both sides by 3

x² = 4

\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}

x=\sqrt{4},\:x=-\sqrt{4}

x=2,\:x=-2

Thus, the value of x​ will be:

x=2,\:x=-2

5 0
3 years ago
Angle 2 is 60. Find angle 8. <br><br> Options:<br> 140<br> 100<br> 40<br> 60
pav-90 [236]
Angle 8 is 60 too
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The line to the right goes through the point (6, y). If the angle the graph makes with the x-axis is 22°, what is
s344n2d4d5 [400]

Answer:

The y-coordinate of the point is approximately 2.42.

Step-by-step explanation:

From the figure attached below the statement we derive the following equation to calculate the y-coordinate (y), dimensionless, of the point in terms of the x-coordinate (x), dimensionless, and angle of the line (\theta), measured in sexagesimal degrees:

y = x\cdot \tan \theta (1)

If we know that x = 6 and \theta = 22^{\circ}, then the y-coordinate of the point is:

y = 6\cdot \tan 22^{\circ}

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The y-coordinate of the point is approximately 2.42.

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PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU B
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Answer:

IM preeetty sure the answer is x=4 and y=26 so the solution would be (4,26)

Step-by-step explanation:

hope this helps!!! <333

6 0
3 years ago
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