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3 years ago

What is the solution to 2x^2 + x + 2 = 0

1 answer:

5 0

x=\frac{-2+2\sqrt{3}}{2},\frac{-2-2\sqrt{3}}{2}x=
2

−2+2√
3

,
2

−2−2√
3

2 Simplify solutions
x=-1+\sqrt{3},-1-\sqrt{3}x=−1+√
3

,−1−√
3

Done
Decimal Form: 0.732051, -2.732051

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Using the figure below identify 1 pair of the following angle relationships

tangare [24]

$\\1) \: \: \underline{ \sf{ Alternate \: interior \: angles \: \: : }}\\$

$\sf \implies \: 2\: \: and \: \: 7\\$

$\sf \implies \: 6\: \: and \: \: 3\\\\$

$\\2) \: \: \underline{ \sf{ Alternate \: interior \: angles \: \: : }}\\\\$

$\sf \implies \: 1\: \: and \: \: 8\\$

$\sf \implies \: 5\: \: and \: \: 4\\\\$

$\\3) \: \: \underline{ \sf{ Corresponding \: angles \: \: : }}\\$

$\sf \implies \: 3\: \: and \: \: 1\\$

$\sf \implies \: 5\: \: and \: \: 7\\$

$\sf \implies \: 4\: \: and \: \: 2\\$

$\sf \implies \: 6\: \: and \: \: 8\\\\$

$\\4) \: \: \underline{ \sf{ Consecutive\: Interior \: angles \: \: : }}\\$

$\sf \implies \: 2\: \: and \: \: 3\\$

$\sf \implies \: 6\: \: and \: \: 7\\\\$

$\\5) \: \: \underline{ \sf{ Consecutive\: Exterior \: angles \: \: : }}\\$

$\sf \implies \: 1\: \: and \: \: 4\\$

$\sf \implies \: 5\: \: and \: \: 8\\\\$

7 0

1 year ago

Of the 15 year olds at karate school 8 have black belts in 20 had Brown belts among 16 year olds 10 have black belts in 17 have

RSB [31]

Answer:

16 year olds had the higher ratio of black belts to brown belts.

Step-by-step explanation:

15 year olds: 8/28 students had black belts

8/28 = 28.6% had black belts

16 year olds: 10/27 students had bald belts

10/27 = 37.0% had black belts

5 0

2 years ago

5 (3y — 13) = бу – 2<br> PLEAse help <br> Need those 2

____ [38]

Answer:

y = 7

Step-by-step explanation:

5(3y - 13) = 6y - 2

5*3y + 5*-13 = 6y - 2

15y - 65 = 6y - 2

15y - 6y = 65 - 2

9y = 63

y = 63/9

y = 7

Check:

5((3*7)-13) = 6*7 - 2

5(21-13) = 42 - 2

5*8 = 40

6 0

3 years ago

the number of men is five eights of the number of women working in a factory if there is 24 more women than men how many workers

Anna [14]

Answer:

104

Step-by-step explanation:

women = 8/8

men = 5/8

all workers = 8/8 + 5/8 = 13/8

extra women workers = 8/8 - 5/8 = 3/8

so...

3/8 = 24

13/8 = x

( cross multiplication method)

3/8 x = 39

x = 104

Hence, there are 104 workers

6 0

1 year ago

Read 2 more answers

What is the solution to 6x=30

Tasya [4]

Answer:

$\boxed{x=5}$

Step-by-step explanation:

Division property of equality- is dividing both sides of an equation by the same non-zero number it does not change the equation.

First you had to divide by six from both sides of an equation form.

$\frac{6x}{6}= \frac{30}{6}$

$30/6=5$

$30/5=6$

$5*6=30$

$6*5=30$

$x=5$

$5=x$

Final answer: $\boxed{x=5}$

Hope this helps!

And thank you for posting your question at here on brainly, and have a great day.

-Charlie

8 0

2 years ago

Read 2 more answers