x² + bx - 81
there are 2 formula that fit this equation :
>> x² - a² = (x+a)(x-a)
or
>> x² + 2ax² + a² = (x+a)(x+a)
because the last value of our equation is negative value therefore we have to use the first formula >> x² - a² = (x+a)(x-a)
step:
x² + bx - 81
x² + bx - 9²
because we have to follow the first formula x² - a² therefore bx = 0
x² + bx - 9²
bx = 0
b = 0
<h3>
Answer: 0.9999</h3>
Explanation:
Having a 1% increase means we go from 100% to 100%+1% = 101% which converts to the decimal form 1.01; note how you move the decimal point two spots to the left to go from 101% to 1.01
A 1% decrease means we go from 100% to 100%-1% = 99% = 0.99
Multiplying 1.01 and 0.99 leads to 1.01*0.99 = 0.9999
Since 0.9999 = 99.99%, this means we have a 100% - 99.99% = 0.01% decrease overall.
Note: the order of the decrease and increase doesn't matter. You could do the decrease first, then the increase, or vice versa.
Answer:
6ft by 15ft
Step-by-step explanation:
just divide each number by two and add it to the origanal number.
This is a basic addition/subtraction question. It's saying that they started at the 50 yard line. On the play, they gained 7 yards. So, we'll add 50+7 = 57.
They're at the 57 yard line at this point. On the second play they lost 10 yards (how unfortunate). Thereby, we will subtract 57-10=47.
50 yards +7 yards. -10 yards.
The answer will be that they'll be on the 47 yard line on the next play.
Answer:
My calculator said error and i tried looking it up it said error too. I'm sorry I tried, you'll have to do it by hand
Step-by-step explanation:
