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valentinak56 [21]
3 years ago
13

The figure below shows two pair of congruent triangles.DFE​

Mathematics
1 answer:
Sergeu [11.5K]3 years ago
7 0

Answer:

c) YWX

Step-by-step explanation:

D corresponds with Y, W with F and X with E

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96 pints are bigger

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Convert the fraction 1/3 into a repeating decimal
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0.33 with the bar on top

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Solve each quadratic equation. Show your work 15. x2 + 3x = 10
OLEGan [10]
X² + 3x = 10

Convert to standard form.
x² + 3x - 10 = 0

factor x² = x * x
factor -10 = 5 * -2

(x + 5) (x - 2) = 0
x(x -2) + 5(x-2) = 0
x² - 2x + 5x - 10 = 0
x² + 3x - 10 = 0

x + 5 = 0               x² + 3x = 10
x = -5               -5² + 3(-5) = 10
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x - 2 = 0            x² + 3x = 10
x = 2               2² + 3(2) = 10
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4 0
3 years ago
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If (ax^2 + 3x + 2b) - (5x^2+bx-3c)=3x^2-9, what is the value of A + B + C?
Rina8888 [55]

Answer:

We have the equation:

(ax^2 + 3x + 2b) - (5x^2+bx-3c)=  3x^2 - 9

First, move all to the left side.

(ax^2 + 3x + 2b) - (5x^2+bx-3c) - 3x^2 + 9 = 0

Now let's group togheter terms with the same power of x.

(a - 5 - 3)*x^2 + (3 - b)*x + (2b + 3c + 9) = 0.

This must be zero for all the values of x, then the things inside each parenthesis must be zero.

1)

a - 5 - 3 = 0

a = 3 + 5 = 8.

2)

3 - b = 0

b = 3.

3)

2b + 3c + 9 = 0

2*3 + 3c + 9 = 0

3c = -6 - 9 = -15

c = -15/3 = -5

Then we have:

a = 8, b = 3, c = -5

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8 0
3 years ago
1.5(x+4)-3=4.5(x-2)?
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Answer:

x=4

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