2 years ago

Which method is most efficient method to use to solve 2x^2+5x-11=0

Mathematics

1 answer:

dangina [55]2 years ago

8 0

May be you can use the quadratic equation formular.

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Two workers finished a job in 12 days. How long would it take each worker to do the job by himself if one of the workers needs 1

FromTheMoon [43]

Answer:

20 days

Step-by-step explanation:

t = time required by one worker to complete the job alone

(t+8) = time required by the other worker

So:

7.5/ t + 7.5/ (t + 8) = 1

Solve for t.

...

t = 12 days, the first guy working alone

The other worker would finish the job in 20 days.

4 0

3 years ago

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How do I write in standard form 700000 + 20000 + 4000 + 500 + 60 + 2

Inga [223]

All you have to do is just bring the numbers that are not zero from each digit.

so in this process, the answer you would get is 724,562.

I hope this helped

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3 years ago

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Help please, I'm desperate!

Luden [163]

B. 2.8
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3 years ago

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The graph of y = –3x + 4 is:

MrRa [10]

Answer:

Step-by-step explanation:

It's a line with many solutions like

When x=1 y=1

X=2 y=-2

And so on all the pts on the line

8 0

2 years ago

a school had 690 students sign up for the trivia teams if they wanted to have nine teams with the same number of students on eac

uysha [10]

Answer:

3 more students need to sign up

Step-by-step explanation:

Let the equal number of students in 9 teams be x.

Total number of signed up students = 690.

Let t be the required number of students to be signed.

Therefore, 9x = 690+t.

This means, 690+t is a multiple of 9.

The least value of t to make 690+t, a multiple of 9 is 3 and hence,

$\frac{693}{9}$

= 77

Hence, 3 more students need to sign up and each of the 9 teams consists of 77 students.

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2 years ago