2 years ago

I've tried doing the problems and I just don't understand this can someone plz help me

Mathematics

1 answer:

GuDViN [60]2 years ago

5 0

Whats the problem you need help with

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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

1 year ago

According to the south carolina department of mental health web site, for every 200 u.s. women, the average number who suffer fr

cupoosta [38]

3 are expected to have the condition.

The expected value is the found by multiplying the probability by the number in the sample:

(1/200)×600
= (1/200)×(600/1)
= (1×600)/(200×1)
= 600/200 = 3

3 0

2 years ago

Chloe has been offered a new job in the women’s shoe department at Macy’s. She has two salary options. She can receive a salary

Oksana_A [137]

She can recieve a salary of $600 per week. If she went with option number two then she would be getting like 500 dollars.

6 0

2 years ago

Write an equation using four numbers that multiply to 0, neither of which are opposites.

guapka [62]

Answer:

0 x anything = 0

Step-by-step explanation:

Anything multiplied by 0 = 0

4 0

1 year ago

PLEASE ANSWER I WILL GIVE YOU BRAINIEST IF CORRECT!!!!!!!<br> thanks!

Flauer [41]

Answer:

700 is your answer

Step-by-step explanation:

ok so 5x120=600 +100=700 so 700 is your answer

8 0

3 years ago