Answer:
A' = (-2,0)
Step-by-step explanation:
imagine a mirror being along the line y=2.
Then A's mirror image would appear at -2,0.
Length: 12
Width: 4 since 12x4=48 and length is 3 times as long as it is wide.
In a quadratic equation , we use the quadratic formula to find the solutions x = (-b ± √(b2 - 4ac)) / 2a where a, b, and c are coefficients of the equation ax2 + bx + c = 0 Since x=6 is the only x-intercept, the equation would be (x - 6)(x - 6) = 0 Expanding this out, we get x2 - 12x + 36 = 0 In this equation, a = 1b = -12c = 36 Now the discriminant is the square-root part of the formula: b2 - 4ac Now plug in the values of a,b, and c into the discriminant. (-12)2 - 4(1)(36) = 144 - 144 = 0 This number is under the square-root. The square-root of 0 is 0. Your answer is (A).
(I had the same question in math last week)
How to find each one: So first, if you have a fraction, (you probably want to simplify the ones you've put in by dividing both sides by the same number, for example, 45/100, both sides by 5, 9/20)
So if you have a fraction:
You can find the ratio by just putting the numerator on the left, n:, and the denominator on the right. n:d
For example, with 5/9, 5:9.
For decimal, you can just divide. For example, 4/5, 0.8.
Percent, just change the decimal to have a hundredths place, with 0.8, 0.80, and then just take those two digits, or 80%.
So basically, for ratio, you can do it if you have the fraction.
For the column fraction, if you know basic fractions, you can also convert from those, and also from the ratios.
For decimal, if you know percent or fraction, you should be able to find it.
Percent, fraction or decimal should work.
I'll do a row to explain, it's kind of confusing, sorry:
So if you have 9:20, you can convert that to the fraction, 9/20.
Then you can find the decimal, 9/20 = 0.45
Percent would therefore be 45%.
Hope this helped :)
Answer: 30 hours
30*0.4 is 12 or 40 percent of 30 is 12
Hope this helps!