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3 years ago

Simplify this fully: 9:12:21 simplify this fully: 8:12:32

Mathematics

2 answers:

lys-0071 [83]3 years ago

8 0

4;6;16
2;3;8 - this is probably the answer I just simplified by two and then two again

7nadin3 [17]3 years ago

6 0

9:12:21 (all can be divided by 3)
3:4:7

8:12:32 (all can be divided by 4)
2:3:8

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Tom and same sit down to eat a pie. Tom eats 2/3 of the pie , and sam eats 1/4 of the pie what function of the pie is left

dlinn [17]

If you mean fraction,

Tom: 2/3

Sam: 1/4

Now we change the denominator.

Tom: 6/12

Sam: 3/12

6/12 + 3/12 = 9/12

9/12 can be simplified, so 3/4 of the pie was eaten.

4/4 - 3/4 = 1/4

The answer is 1/4.

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3 years ago

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Complete the statement if m gdf = 54 then m edf =

Ymorist [56]

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3 years ago

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How would you solve 2x^2 -4x -3 = 0

neonofarm [45]

ANSWER

$x =1 +\frac{1}{2} \sqrt{ 10} \: or \: x =1 - \frac{1}{2}\: \sqrt{10}$

EXPLANATION

The given quadratic equation is

$2 {x}^{2} - 4x - 3 = 0$

This function is of the form:

$a{x}^{2} + bx + c = 0$

This implies that:

a=2, b=-4 and c=-3.

We can solve this equation using the quadratic formula:

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

We substitute the values into the quadratic formula to obtain;

$x = \frac{ - - 4 \pm \: \sqrt{ {( - 4)}^{2} - 4(2)( - 3)} }{2(2)}$

$x = \frac{4 \pm \: \sqrt{ 40} }{4}$

$x = \frac{4 \pm \: 2\sqrt{ 10} }{4}$

$x =1\pm \: \frac{1}{2} \sqrt{10}$

$x =1 +\frac{1}{2} \sqrt{ 10} \: or \: x =1 - \: \frac{1}{2} \sqrt{10}$

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3 years ago