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Ivenika [448]
3 years ago
7

Find the perimeter of the figure.

Mathematics
1 answer:
kolezko [41]3 years ago
3 0
The answer is c).















C fo da win cuddi
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The value of the digit 4 is worth 4,000 in the number 84,230.
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What is the value of -16 divided by 2.5
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Consider two bases B = {b1, b2, b3} and C = {c1, c2, c3} for a vector space V such that
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Consider the equation x2+4x+9=0 in standard form. Which equation shows the coefficients a, b, and c correctly substituted into t
Afina-wow [57]

Answer:

<h2>x = -2+i√5 and  -2i-√5</h2>

Step-by-step explanation:

The general form of a quadratic equation is ax²+bx+c = 0

Given the quadratic equation x²+4x+9=0 in its standard form, on comparing with the general equation we can get the value of the constant a, b and c as shown;

ax² = x²

a = 1

bx = 4x

b = 4

c = 9

The quadratic formula is given as x = -b±√(b²-4ac)/2a

Substituting the constant;

x = -4±√(4²-4(1)(9))/2(1)

x = -4 ±√(16-36)/2

x = -4±√-20/2

x = -4±(√-1*√20)/2

Note that √-1 = i

x = -4±(i√4*5)/2

x = (-4±i2√5)/2

x = -4/2±i2√5/2

x = -2±i√5

The solution to the quadratic equation are  -2+i√5 and  -2i-√5

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3 years ago
4x2 + 4x - 2y2 +3y, when x is equal to -2 and y is equal to 3?
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Answer

-1

Step-by-step explanation:

Just plug in the numbers.

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