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levacccp [35]
4 years ago
9

Find the value of 2a^2+5b^2 when a=-6 and b=2

Mathematics
2 answers:
Margaret [11]4 years ago
5 0

2(6)^2+5(2)^2

2*36+5(2)^2

2*36+5*4

72+5*4

72+20

=92

frutty [35]4 years ago
3 0
HEYA!

here is your answer:

2a^2+5b^2

a = 6 & b= 2

2( { - 6)}^{2}  + 5( {2)}^{2}

➡ 2 (36) + 5(4)

➡ 72 + 20

➡ 92
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maks197457 [2]

Answer:

5/7

Step-by-step explanation:

Let the numerator = x

Denominator = x + 2

\dfrac{x}{(x+2)+3}=\dfrac{1}{2}\\\\\dfrac{x}{x + 5}=\dfrac{1}{2}

Cross multiply,

2*x = 1(x +5)

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Subtract 'x' from both sides

2x - x = 5

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The numerator = x = 5

Denominator = x + 2 = 5+2 = 7

Rational \ number = \dfrac{5}{7}

3 0
3 years ago
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AveGali [126]

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Step-by-step explanation:

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3 years ago
The model of a trinomial is shown.
galben [10]

The factors of the trinomial based on the information given include:

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<h3>What is a trinomial?</h3>

It should be noted that a trinomial is an algebraic expression that has three non-zero terms. Here, the examples of a trinomial expression: x + y + z is a trinomial in three variables x, y and z. Also, 2a² + 5a + 7 is a trinomial in one variables.

In this case, the algebra tile configuration has 0 tiles are in the Factor 1 spot and 0 tiles are in the Factor 2 spot. 24 tiles are in the Product spot: 1 is labeled + x squared, 7 are labeled negative x. Here, the trinomial is x² - 5x - 14.

The factors will be:

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A polynomial with three terms is called a trinomial.

In conclusion, the correct options are C and E.

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2 years ago
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schepotkina [342]

Answer:

f(3) = 12

Step-by-step explanation:

F(x) = 2x2. What is f(3)

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3 years ago
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