Answer:
<<<<<<<<<<<<<<<<<<<<<<<<<<<2.12>>>>>>>>>>>>>>>>>>>>>>>>>
4x^2 -28x + 49=0
- move -49 to the other side
x^2-7x+49/4=0
- take out the 4 because you cannot complete the square with a coefficient in front of x^2
(x^2-7x +(7/2)^2) + 49/4 - (7/2)^2 = 0
- complete the square
4((x-7/2)^2)= 0
- bring the 4 back and you’re done.
hope this helped :)
Answer:
11.2
Step-by-step explanation:
the first thing you wanna do it's to change 40% into a real number to do that you move the decimal 2 places to TV he left and make it 0.40 then you multiply 0.40 with 8 and you get 3.2 so you add 3.2 to 8 and the answer is 11.2
I think this is what you mean. I don't know why the Latex didn't work. Good for you that you can use it.
Reduce the 4/28 to 1/7
Make the 2 minuses into a +
56 is the common denominator.
Answer = [23 + 21 + 8] / 56 = 52 / 56 = 13 / 14 When both numerator and denominator are divided by 4
13 / 14 <<<< answer.
Answer:
23
Step-by-step explanation:
Step 1:
3 - -5 (4)
Step 2:
3 - (-20)
Step 3:
3 + 20
Answer:
23
Hope This Helps :)