Solve: (3x^4 − 3x) − (3x − 3x^4 )?

Mathematics

2 answers:

s344n2d4d5 [400]2 years ago

6 0

Option D is the correct answer

Step-by-step explanation:

$(3 {x}^{4} - 3x) - (3x - 3 {x}^{4} ) \\ \\ = 3 {x}^{4} - 3x - 3x + 3 {x}^{4} \\ \\ = 3 {x}^{4} + 3 {x}^{4} - 3x - 3x \\ \\ \huge \red{= 6 {x}^{4} - 6x }$

alexandr1967 [171]2 years ago

4 0

<h3>Answer:</h3>

D. $6x^{4} -6x$

<h3>Solution:</h3>

$(3x^{4} -3x) -(3x -3x^{4}) \\ 3x^{4} -3x -3x +3x^{4} \\ (3 + 3)x^{4} +(-3 -3)x \\ 6x^{4} -6x$

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2 years ago

Select the correct answer.

sp2606 [1]

The perimeter of the pentagon with apothem of 5cm is 28.87cm

<h3>How to calculate the perimeter of a pentagon</h3>

The sum of all the external sides of the pentagon is its perimeter.

First we need to calculate the half of one of its sides using the SOH CAH TOA

tan 30 = x/5

x = 5 tan 30

x = 2.89

One of the sides = 2(2.89) = 5.77 cm

Perimeter of th pentagon = 5(5.77) = 28.87

Hence the perimeter of the pentagon with apothem of 5cm is 28.87cm

Learn more on perimeter of pentagon here: brainly.com/question/11484726

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1 year ago

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tatiyna

C(x)=- 0.3x^2+600x
y=ax^2+bx+c
it shows a upside down parabola equation.
to find maximum value we need to find its vertex(h,k)
as this is a standard quadratic equation we need to see parabolis equation too
y=a(x-h)^2+k
if u see this eq^n K would be the maximum value of Y if x=h.
where h,k are vertex of parabola.

h=-b/2a(derived standard formula)
C(x)=- 0.3x^2+600x
y=ax^2+bx+c
a= -0.3 b=600
h=-600/-0.3
h= 2000
put h in place of x to get K
K= -0.3(2000)^2+600(2000)
K= - 1200000+1200000
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u gets k=0
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8 0

2 years ago

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Answer:

1/3

Step-by-step explanation:

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2 years ago

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