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
So the total amount of money is: (65 x +50 ) cents
Answer:
Step-by-step explanation:
To answer this, look at the form of the answer. they want miles per hour. So, just do that calculation
She traveled 14 miles in 6 hours.
14 miles/6 hours
14/6 = 7/3 = 2.3333 miles/hour
Answer:
divide numerator by the denominator of the fraction.Mean you can divide it
Step-by-step explanation:
I am not sure my answer correct or not,hope you know it.
