2 years ago

Factor the following expressionx^2 +3xy+2y^2+4x+7y+3

Mathematics

1 answer:

alex41 [277]2 years ago

4 0

This expression can't be factored with rational numbers.

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Find the values of a and b such that x^2-x+5=(x-a)^2+b

Romashka [77]

Answer:

a = 0.5 or 1/2

b = 19/4 or 4.75

Step-by-step explanation:

Step 1: Isolate <em>x</em>'s

x² - x = -5

Step 2: Complete the Square

x² - x + 1/4 = -5 + 1/4

(x - 1/2)² = -19/4

Step 3: Move everything to one side

(x - 0.5)² + 4.75

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2 years ago

Find the missing measures for the rectangle. l = _?_ w = 4.2 m A = 37.8 m2 P = _?_ A) 9 m; 26.4 m B) 14.7 m; 61.74 m C) 9 m; 13.

egoroff_w [7]

Answer:

The correct answer is A.

Step-by-step explanation:

The area of a rectangle can be calculated using the following formula:

$Ar=W . I$

If we know that the area measures $37.8 m^{2}$ and one side of the figure measures 4.2 m, we can say that:

$37.8m^{2}=4.2m. I$

We isolate the side we don't know:

$\frac{37.8m^{2}}{4.2m} = I\\9 m = I$

So I = 9 m

To know the perimter of a rectangle, we use the following formula:

$P= I. 2 + W . 2$

$P= 9m. 2 + 4.2m. 2$

$P= 26.4 m$

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3 years ago

I AM VERY MAD AND IRRATARITED

docker41 [41]

Answer:

ahhhhhhhhhhhh too muchhhhhhhhhhhhhh

Step-by-step explanation:

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What triangle? you need to show the triangle

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goldfiish [28.3K]

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