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3 years ago

The probability the Sam sleeps for less than 6 hours is 0.25 work out the probability that Sam sleeps for 6 hours or more

Mathematics

1 answer:

dezoksy [38]3 years ago

4 0

Step-by-step explanation:

h na jwhwwhwhwhwhwhwhwhwjjwjwjwjje i don't know thrle answer

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Which problem can be solved using the equation shown? $2.50x-$2.00=$10.50

tiny-mole [99]

A becomes the other day 2.00$ each or 10.00$ each but it’s 2.50$ each So it’s ,A.

8 0

3 years ago

Read 2 more answers

PLEASE HELP FAST!!!!!!!! Which two values of x are roots of the polynomial below?

worty [1.4K]

Given a quadratic equation

$ax^2+bx+c=0$

you can find its solutions with the following formula:

$x_{1,2} = \dfrac{-b\pm\sqrt{b^2-4ac}}{2a}$

You equation is identified by the coefficients

$x^2 - 3x + 5 \iff a = 1,\ b = -3,\ c = 5$

Which means the solutions are

$\dfrac{3 \pm \sqrt{9-4\cdot 5}}{2} = \dfrac{3 \pm \sqrt{-11}}{2}$

So, the answers are B and D

4 0

3 years ago

Plz help me it's due today<br>

lilavasa [31]

Answer:

I can't see the half of the question before city

Step-by-step explanation:

Then i woul dbe able to help u

3 0

3 years ago

Pls help! Solve the equation by using quadratic formula. <br><br> -2x’2 + 4x = 5

OleMash [197]

Answer:

$x=\frac{2\pm i\sqrt{6}}{2}$

Step-by-step explanation:

$-2x^2+4x=5\\\\-2x^2+4x-5=0\\\\x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\ \\x=\frac{-4\pm\sqrt{(4)^2-4(-2)(-5)}}{2(-2)}\\\\x=\frac{-4\pm\sqrt{16-40}}{-4}\\\\x=\frac{-4\pm\sqrt{-24}}{-4}\\ \\x=\frac{-4\pm2i\sqrt{6}}{-4}\\ \\x=\frac{2\pm i\sqrt{6}}{2}$

4 0

2 years ago

Midpoint Between Two Given Points

kondaur [170]

Answer:

(1, -7)

Step-by-step explanation:

the difference between -4 & 6 is 10 so you add 5 (half) to -4 or subtract from 6, this gives you 1

you do the same for -9 and -5, the midpoint for those being -7, I hope this helps

4 0

3 years ago