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erastovalidia [21]
3 years ago
6

A) find the value of 2x+y wehn x =4 and y =3 b) find the value of a^2 + b when a = -2 and b = 5

Mathematics
1 answer:
Reil [10]3 years ago
6 0

Answer:

<h3><em>a</em><em>.</em><em> </em><em> </em><em>1</em><em>1</em></h3><h3><em>b</em><em>.</em><em> </em><em> </em><em>9</em></h3>

<em>Sol</em><em>ution</em><em>,</em>

<em>a</em><em>.</em><em> </em><em> </em><em> </em><em>Given</em><em>,</em>

<em>X=</em><em>4</em>

<em>y</em><em>=</em><em>3</em>

<em>Now</em><em>,</em>

<em>2x + y \\  = 2 \times 4  + 3 \\  = 8 + 3 \\  = 11</em>

<em>b</em><em>.</em><em> </em><em>Given,</em>

<em>a</em><em>=</em><em>-</em><em>2</em>

<em>b</em><em>=</em><em>5</em>

<em>Now</em><em>,</em>

<em>{a}^{2}  + b \\  =  {( - 2)}^{2}  + 5 \\  = 4 + 5 \\  = 9</em>

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>.</em><em>.</em><em>.</em>

<em>Good</em><em> </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em>

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