How do I figure out what to do in this circle graph/pie chart

Mathematics

1 answer:

Natali [406]3 years ago

5 0

Considering there's 24 hours in a day..
<span>9.5 hours is spent sleeping
</span>1.5 hours is spent eating
4 hours is spent recreationally
3 hours is spent studying
6 hours is spent at school
hope that helps

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Solve 2x2 + 20x = −38.

cestrela7 [59]

2x^2+20x=-38 divide both sides by 2

x^2+10x=-19, halve the linear coefficient, square it, than add that value to both sides of the equation, in this case add (10/2)^2=25...

x^2+10x+25=6 now the left side is a perfect square

(x+5)^2=6 take the square root of both sides

x+5=±√6 subtract 5 from both sides

x=-5±√6 (so answer c.)

4 0

3 years ago

Janet wants to solve the equation y startfraction y squared minus 5 over y squared minus 1 endfraction = startfraction y squared

Aleonysh [2.5K]

An equation is formed of two equal expressions. Janes should multiply both sides of the equation by (y²-1).

<h3>What is an equation?</h3>

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

The equation that is given is an equation with a mixed fraction, therefore, the denominator with the highest power should be multiplied on both sides of the equation. The equation that is given to us

$y + \dfrac{y^2-5}{y^2-1} = \dfrac{y^2+y+2}{y+1}$