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Dovator [93]
3 years ago
6

A rectangle has a length of 2x+3 and a width of 10x-4. Find the perimeter and area of the figure

Mathematics
1 answer:
inn [45]3 years ago
4 0

Step-by-step explanation:

perimeter is 4x+6 +20x-8=20x-2

area is 20x^2+22x-12

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Help me out! I always mark brainliest. Unless of course, it is incorrect or inadequate. Please include how you did the problem.
Charra [1.4K]
If 2 + 5i is a zero, then by the complex conjugate root theorem, we must have its conjugate as a zero to have a polynomial containing real coefficients. Therefore, the zeros are -3, 2 + 5i, and 2 - 5i. We have three zeros so this is a degree 3 polynomial (n = 3).
f(x) has the equation
                        f(x) = (x+3)(x - (2 + 5i))(x - (2 - 5i))
If we expand this polynomial out, we get the simplest standard form
                        f(x) = x^3-x^2+17x+87
Therefore the answer to this question is f(x) = x^3-x^2+17x+87
5 0
3 years ago
If f(x) = 2(3^x) + 1, what is the value of f(2)?<br> (1) 13<br> (3) 37<br> (2) 19<br> (4) 54
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6 0
3 years ago
Read 2 more answers
(x+2)(x+5) find the following products by using distributive property
nika2105 [10]

Answer:

To multiply these two terms you multiply each individual term in the left parenthesis by each individual term in the right parenthesis.

(

x

+

5

)

(

x

+

2

)

becomes:

(

x

×

x

)

+

(

x

×

2

)

+

(

5

×

x

)

+

(

5

×

2

)

x

2

+

2

x

+

5

x

+

10

We can now combine like terms:

x

2

+

(

2

+

5

)

x

+

10

x

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+

7

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10

Step-by-step explanation:

7 0
3 years ago
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k0ka [10]

Answer:

56.

Step-by-step explanation:

= -(8-12)+60+(-4)*2

= -(-4)+60+(-4)*2

= 4+60+(-4)*2

= 4+60+-4*2

= 4+60-4*2

= 4+60-8

= 64-8

= 56

5 0
3 years ago
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spayn [35]
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