Step-by-step explanation: Isolate the variable by dividing each side by factors that don't contain the variable.
Answer:
here p=0.65 and n=100 hence standard error =(p*(1-.
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
Area = LW
We know that the w = 2
We are told that the L (length) is three less than an unknown number so that mean L = (x - 3)
We are then told that the area = 22 square inches.
Area = LW
22 = (x - 3)2
Now solve for x
22 = (x - 3)2
Distribute the 2
22 = 2x - 6
22 + 6 = 2x
28 = 2x
28 / 2 = 2x / 2
14 = x
x = 14
Now take 14 and subtract 3
14 - 3 = 11
Unknown number = 11
Area = LW
L = 11
W = 2
Area = 22
11 * 2 = 22
Answer:
x has no real solution
Step-by-step explanation:
Our equation is qudratic equation so the method we will follow to solve it is using the dicriminant :
- Let Δ be the dicriminant
- a=1
- b=2
- c=9
- Δ= 2²-4*1*9 =4-36=-32
- we notice that Δ≤0⇒x has no real solution
Answer:
3 7/9
Step-by-step explanation:
we have
3.77777... -----> is a repeating decimal
Let
x=3.7...
so
10x=37.7...
10x-x=37.7...-3.7...
9x=34
x=34/9
Convert to mixed number
34/9=(27/9)+((7/9)=3+(7/9)=3 7/9
