3 years ago

What is the value of S5? S5 = RETRY

Mathematics

1 answer:

Sphinxa [80]3 years ago

3 0

Answer:

The answer is 50

Step-by-step explanation:

Just did it on edgy

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I WILL MARK BRAINLIEST!! Split 84 into two parts so that one part is five times the other part. I need the smaller number and th

aalyn [17]

Answer:

70 and 14

Step-by-step explanation:

You divide 84 into 6 parts, so you get 70 and each part is 14, 14x5=70 then if you add 14 its 84.

7 0

3 years ago

Find all complex solutions of 5x^2-6x+2=0.

gregori [183]

We use quadratic formula for that one
remember that √-1=i

so

for
ax^2+bx+c=0
$x=\frac{-b+/-\sqrt{b^2-4ac}}{2a}$
so
given
5x^2-6x+2=0
a=5
b=-6
c=2

$x=\frac{-(-6)+/-\sqrt{(-6)^2-4(5)(2)}}{2(5)}$
$x=\frac{6+/-\sqrt{36-40}}{10}$
$x=\frac{6+/-\sqrt{-4}}{10}$
$x=\frac{6+/-2i}{10}$

$x=\frac{3}{5}+\frac{i}{5}, \frac{3}{5}-\frac{i}{5}$