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2 years ago

Carey earns $9.75 working part time on weekends. The table below shows the amount, a, Carey earns for working h hours.

Mathematics

1 answer:

shutvik [7]2 years ago

7 0

$29.25 in 3 hours. explanation: if he makes $9.75 in 1 hour then 9.75 x 3 (hours) would equal $29.25

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Which equation represents the graph of the linear function?

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2 years ago

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Subtract. 5/1/10-2 9/10 Write your answer as a mixed number in simplest form.

Ahat [919]

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$= 2 \frac{1}{5}$

Step-by-step explanation:

$5 \frac{1}{10} - 2 \frac{9}{10} \\ \frac{51}{10} - \frac{29}{10} \\ = \frac{22}{10} \\ = 2 \frac{2}{10} \\ = 2 \frac{1}{5}$

hope this helps

brainliest appreciated

good luck! have a nice day!

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2 years ago

What are the zeros of the quadratic function f(x) = 2x2 – 10x – 3?

Natasha2012 [34]

Answer:

$x=\frac{50+\sqrt{31}}{2},\frac{50-\sqrt{31}}{2}$ are zeroes of given quadratic equation.

Step-by-step explanation:

We have been a quadratic equation:

$2x^2-10x-3$

We need to find the zeroes of quadratic equation

We have a formula to find zeroes of a quadratic equation:

$x=\frac{b^2\pm\sqrt{D}}{2a}\text{where}D=\sqrt{b^2-4ac}$

General form of quadratic equation is $ax^2+bx+c$

On comparing general equation with b given equation we get

a=2,b=-10,c=-3

On substituting the values in formula we get

$D=\sqrt{(-10)^2-4(2)(-3)}$

$\Rightarrow D=\sqrt{100+24}=\sqrt{124}$

Now substituting D in $x=\frac{b^2\pm\sqrt{D}}{2a}$ we get

$x=\frac{(-10)^2\pm\sqrt{124}}{2\cdot 2}$

$x=\frac{100\pm\sqrt{124}}{4}$

$x=\frac{100\pm2\sqrt{31}}{4}$

$x=\frac{50\pm\sqrt{31}}{2}$

Therefore, $x=\frac{50+\sqrt{31}}{2},\frac{50-\sqrt{31}}{2}$

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3 years ago

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