X = k/y
4 = k/10
k = 4 x 10 = 40
Thus, x = 40 / y
90 = 40 / y
y = 40/90 = 4/9
Answer:
<em>x</em> = 25
Step-by-step explanation:
First turn this into an equation:
times <em>x</em> = 20
Now divide both sides by . You can't divide by a fraction, instead you multiply by flipping the fraction. So now you're multiplying both sides by .
20 times 5 = 100. Next you divide . This is equal to 25. You have completed the equation and now have the answer:
<em>x</em> = 25
Have a great day!
Cancel out the denominators.
(x+5)² + 18 = -30
(x+5)² = -30 - 18
(x+5)² = -48
The equation is impossible, we have a negative number.
There isn't a number that squared gives a negative number (the square is always positive).
√(x+5)² = +/- √-48
x+5 = +/- √-48
IMPOSSIBLE
You can write the result in imaginary numbers
x+5=+/- 4i√3
I believe they just want you to add here, so for:
a. 12,419,293+100,000
b. 12,419,293+1,000,000
c. 12,419,293- 10,000
the increase is addition and decrease is subtraction. If you're having trouble adding and subtracting them put them over each other and subtract or add them like:
12,419,293
+ 1,000,000
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<span>A number a is a root of P(x) if and only if the remainder, when dividing the polynomial by x - a, equals zero.
A. True</span>