3 years ago

Solve any evens for 20 points apiece

Mathematics

1 answer:

Vlad1618 [11]3 years ago

5 0

? what do you mean. do you have questions that need to be solved?

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7. WILL MARK BRAINLIEST!! HELP!

Vilka [71]

Step-by-step explanation:

first factorise the denominator

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3 years ago

Rounded to the nearest hundredth, what is the positive solution to the quadratic equation 0 = 2x2 + 3x – 8? Quadratic formula: x

Lynna [10]

ANSWER

1.39

EXPLANATION

The given quadratic equation is

$0 = 2 {x}^{2} + 3x - 8$

This is the same as,

$2 {x}^{2} + 3x - 8 = 0$

Comparing to

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

We have

a=2, b=3,c=-8

Using the quadratic formula, the solution is given by:

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

We substitute the values to get,

$x = \frac{ - 3\pm \: \sqrt{ {3}^{2} - 4(2)( - 8)} }{2(2)}$

$x = \frac{ - 3\pm \: \sqrt{ 73} }{4}$

The positive root is

$x = \frac{ - 3 + \: \sqrt{ 73} }{4} = 1.39$

to the nearest hundredth.

4 0

3 years ago

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What is the exact volume of a sphere that has a radius of 18 m?

krok68 [10]

Answer:

Step-by-step explanation:

36 u think you need to multiply it by 2

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3 years ago

Here are the first five terms of a sequence.

Snezhnost [94]

Step-by-step explanation:

3 to 8= 5

8 to 17= 9

17 to 30= 13

30 to 47= 17

47 to 68= 21

68 to 93= 25

93 to 122= 29

122 to 155= 33

155 to 192= 37

difference is 4

solve by

$2 {n}^{2} - n + 2 \\ 2 {(9)}^{2} - 9 + 2 \\ 2(81) - 9 + 2 \\ 162 - 9 + 2 \\ 153 + 2 = 155$

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3 years ago

Evaluate. 4⋅( 1 4 −3 )+12

Artemon [7]

4.(14-3) + 12
4.11 + 12
44 + 12
56

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3 years ago

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