3 years ago

When 3+4i2+i is expressed in the form a+bi, what is the value of a?

1 answer:

7 0

Multiplying and dividing with conjugate of 2+i in the given expression, we get(3+ 4i)(2-i)/(2+i)(2-i)=(6-3i+8i-4i^2)/(4-i^2)=(10+5i)/(4+1)=(10+5i)/5=2+i=a+bi<span>Thus a=2</span>

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3 years ago

What number line shows the solution set to this inequality? -2x + 9 < x − 9

UkoKoshka [18]

For the number line, an open circle will be drawn on the value of 6 and the arrow pointing to the right side.

<h3>Number line and inequality</h3>

Given the inequality expression as shown

-2x + 9 < x − 9

Collect the like terms

-2x - x < -9 - 9

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Divide through by -3

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For the number line, an open circle will be drawn on the value of 6 and the arrow pointing to the right side.

Learn more on number line here: brainly.com/question/4727909

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2 years ago

HELP ME NOW!!!!!!!!!! (ALGEBRA)

melisa1 [442]

$\\ \tt\hookrightarrow( g\circ h)(x)=g(h(x))$

$\\ \tt\hookrightarrow \dfrac{8(3x+10)-1}{3x+10+4}$

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$\\ \tt\hookrightarrow \dfrac{24x+80-1}{3x+14}$

$\\ \tt\hookrightarrow \dfrac{24x+79}{3x+14}$

Done

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2 years ago

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Step-by-step explanation:

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