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Dennis_Churaev [7]
3 years ago
7

Solve this equation 1 = 1 - 2n + 8

Mathematics
1 answer:
dolphi86 [110]3 years ago
5 0
<h3>Answer:</h3>

n=4

<h3>Explanation:</h3>

1 = 1 - 2n + 8

2n =  - 1  + 1 + 8

2n = 8

n = 4

I hope you are satisfied

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Which of the following equations can represent the function graphed below? Select all the possible
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2 years ago
Given f(x)=-2x^3 + 3x^2 , find the equation of that tangent line of f at the point where x=2.
trapecia [35]

Step 1: Find f'(x):

f'(x) = -6x^2 + 6x

Step 2: Evaluate f'(2) to find the slope of the tangent line at x=2:

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Step 3: Find f(2), so you have a point on y=f(x):

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2 years ago
I need to know how to find the perimeter please.
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What is the factor of 25a2+b2?
Neko [114]

Answer:

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Step-by-step explanation:

Changes made to your input should not affect the solution:

(1): "b2"   was replaced by   "b^2".  1 more similar replacement(s).

STEP

1

:

Equation at the end of step 1

 52a2 -  b2

STEP

2

:

Trying to factor as a Difference of Squares

2.1      Factoring:  25a2-b2

Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

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        A2 - AB + AB - B2 =

        A2 - B2

Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression.

Check :  25  is the square of  5

Check :  a2  is the square of  a1

Check :  b2  is the square of  b1

Factorization is :       (5a + b)  •  (5a - b)

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Answer:

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