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4 years ago

15

What number must you add to complete the square x^2+12x=-5 A 12 B 36 C 144 D 6

1 answer:

Alexxandr [17]4 years ago

5 0

The general form of a quadratic equation is,

Ax² + Bx + C = 0

A, B, and C are all numerical coefficients of the terms in the equation.

In order to complete the square, we divide all numerical coefficients by 2 and A. Then, square the value of B/2A. Performing this operation for this item,

n = (B/2A)²

Substituting the known values,

n = (12/2(1))² = <em>36</em>

Thus, the missing number in this item is 36 and the final expression becomes,

x² + 12x + 36 = -5 + 36

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Answer:

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Step-by-step explanation:

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3 years ago

Given the force field F, find the work required to move an object on the given oriented curve. F = (y, - x) on the path consisti

timofeeve [1]

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Step-by-step explanation:

We want to compute the curve integral (or line integral)

$\bf \int_{C}F$

where the force field F is defined by

F(x,y) = (y, -x)

and C is the path consisting of the line segment from (1, 5) to (0, 0) followed by the line segment from (0, 0) to (0, 9).

We can write

C = $\bf C_1+C_2$

where

$\bf C_1$ = line segment from (1, 5) to (0, 0)

$\bf C_2$ = line segment from (0, 0) to (0, 9)

so,

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and $\bf C_2$ can be parameterized as

$\bf r_2(t) = (0, 9t)$ for 0 ≤ t ≤ 1

The derivatives are

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$\bf r_2'(t) = (0, 9)$

and

$\bf \int_{C_1}F=\int_{0}^{1}F(r_1(t))\circ r_1'(t)dt=\int_{0}^{1}(5-5t,t-1)\circ (-1,-5)dt=0$

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In consequence,

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4 years ago

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Eddi Din [679]

Answer:

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3 years ago

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lesya692 [45]

Answer:

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Step-by-step explanation:

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3 years ago

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umka2103 [35]

Answer:

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3 years ago

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