The equation for which square method is possible is x²-8=1
Step-by-step explanation:
For checking which of the equation satisfies the complete square condition, we proceed by checking each of the available options
1). x²+20x=52
Rewriting it as x²+20x-52
This binomial expression is not a perfect square since the product of the coefficient of x²(i.e. 1) and independent constant (i.e. 52) is not a perfect square.
2). 5x² + 3x = 9
This equation can be rearranged as 5x²+3x-9=0
This binomial expression is not a perfect square since the product of the coefficient of x²(i.e. 5) and independent constant(i.e. 9) is not a perfect square.
3.) x² −8=1
This equation can be rearranged as x²=9
Hence x= ±3
This binomial expression is a perfect square and can be done by the square method.
4). 3x² −x+17=0
This binomial expression is not a perfect square since the product of the coefficient of x²(i.e. 3) and independent constant(i.e. 17) is not a perfect square.
Answer:
A
Step-by-step explanation:
Because u have to multiply 6 to find the area and then u divide
Hello!!!!
If they drive an average of 60 miles per hour the last day it will take them 2.5 hours.
4 hours at 60 miles per hour = 4*60 = 240 miles6 hours at 65 miles per hour = 6*65 = 390 miles
This is a total of 630 miles. There are 780-630=150 miles left; if they average 60 miles per hour, that would be 150/60 = 2.5 hours.
Hope this helps!
<em>1/2</em>
- <em>Step-by-step explanation:</em>
<em>Hi there ! </em>
<em>1 1/3 + (-5/6) =</em>
<em>= (1*3+1)/3 - 5/6</em>
<em>= ²⁾4/3 - 5/6</em>
<em>= 8/6 - 5/6</em>
<em>= (8 - 5)/6</em>
<em>= 3/6</em>
<em>= 1/2</em>
<em>Good luck !</em>
Solution:
we have been asked to choose from the given options for the Question
Which situation ONLY describes a purchase made with a debit card?
As we know that the debit card has the power of purchase exactly equivallent to the amount in your bank account.
So each time you will use the debit card, balance in your bank account gets decreased by the same amount.
So out of all the possible options , the best possible option is
Linda paid for her family's lunch with her card. Each time she uses this card her checking account decreases by the purchase amount.
Hence the correct option is (C)
