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solve: 4x^2 + 6x - 4 > 0

4x 2 + 6x - 4 > 0 2(2x 2 + 3x - 2) > 0 2(2x - 1)(x + 2) > 0 2x-1 = 0 --> 2x = 1 --> x = 0.5x+2 = 0 --> x = -2 x = 0.5
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Answered by Nicholas H. • Maths tutor
4146 Views

2x + 5y =33 x+3y = 19

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Answered by Sen H. • Maths tutor
3496 Views

There are green and red counters in a bag. There are 30 counters in total. The ratio of red to green counters is 1 : 5. There are 5 red counters in the bag. How many green counters are in the bag?

There are 30 counters in total in the bag. If we visualise the ratio as there being x red counters and 5x green counters, we find that there are 6x counters in total in the bag, and thus we can conclude that...
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Answered by Jack S. • Maths tutor
7381 Views

A truck travels 110 miles in 2 hours. What is the average speed of the truck?

Speed is equal to the distance divided by the time, so this will be our calculation. In the question, the distance is given in miles and the time in hours, so the speed should be in miles per hour , m/h. Spe...
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Answered by Veer S. • Maths tutor
11243 Views

x^2+10x+6=0 Find x

Quadratic formula. x=(b+-SQRT(b^2-4 a c))/2 a substitute. x=(10+-SQRT(100-4 1 6))/2 1 simplify. x=5+2SQRT(19)/2ORx=5-2SQRT(19)/2
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Answered by Arthur N. • Maths tutor
3773 Views