Answer:
x = 1.56 or x = -2.56
Step-by-step explanation:
From the equation;
x2 +x − 4 = 0
a = 1 , b = 1, and c = -4
x = (-b ± √(b² -4ac))/2a
= (-1 ± √(1²- 4×1×-4))/2
= ( -1 ± √(17)/2
= (-1 ± 4.12)/2
= (-1 + 4.12)/2 or (-1 - 4.12)/2
<u>x = 1.56 or x = -2.56</u>
Answer: 240 square foot room
Step-by-step explanation: They ask for how many square feet in 1 hour which is double the 1/2 hour. So, just do 120x2=240 to get your answer! (Don’t forget to label ,square-feet,)
Answer:
The answer is 512
Step-by-step explanation:
4) 32 x 2=60
5) 64 x 2= 128
6) 128 x 2= 256
7) 256 x 2 = 512
8) answer - 512x2=1,024
Multiply each product by 2!
Answer:
(-x-7)(x+4)
Step-by-step explanation:
Answer:
10.75 , 10 (6/24),13/20,-10(6/25)
