2 years ago

HELP ME PLS ANSWER THIS CORRECTLY AND YOU WILL GET BRAINLIEST AND THE 50+ EXTRA POINTS HELP PLEASE

Mathematics

1 answer:

leva [86]2 years ago

4 0

Answer:

Step-by-step explanation:

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motikmotik

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in a town election, 5985 people voted. this is 63% of the town's population who are registered to vote. How many people are regi

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Step-by-step explanation:

If r represents the number of registered voters, we are given that ...

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Layla used 0.482 grams of salt in her experiment. Maurcie use 0.51 grams of salt. Who used the greater amount of salt?

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Over which interval is the graph of f(x) = one-halfx2 + 5x + 6 increasing?

kaheart [24]

Answer:

$\large\boxed{x\in[-5,\ \infty)}$

Step-by-step explanation:

$f(x)=\dfrac{1}{2}x^2+5x+6\\\\\text{The coeficient of}\ x^2\ \text{is the positive number. Therefore the parabola is op}\text{en up}.\\\\\text{If a parabola op}\text{en up, then the graph increasing in interval}\ (h,\ \infty),\\\text{and decreasing in interval}\ (-\infty,\ h).\ \text{Where}\ h\ \text{is a first coordinate of a vertex.}\\\\\text{For}\ y=ax^2+bx+c,\ h=\dfrac{-b}{2a}.\\\\\text{We have}\ a=\dfrac{1}{2}\ \text{and}\ b=5.\ \text{Substitute:}\\\\h=\dfrac{-5}{2\left(\frac{1}{2}\right)}=-\cdot\dfrac{5}{1}=-5.$

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3 years ago

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