Answer:
x = 1/2
Step-by-step explanation:
(x + 2)2 + (9 - 3)2 = 4
2x + 4 + 18 - 6 = 4
2x + 16 = 4
2x = 4/16
2x = 1/4
x = 1/4/2
x = 2/4
x = 1/2
Step-by-step explanation:
First, find the degrees of freedom:
df = n − 1
df = 49
To find the p-value manually, use a t-score table. Find the row corresponding to 49 degrees of freedom. Then find the α column that corresponds to a t-score of 1.421. You'll find it's between α = 0.10 (t = 1.299) and α = 0.05 (t = 1.677). Interpolating, we get an approximate p-value of 0.084. For a more accurate answer, you'll need to use a calculator.
Isolate the variable by dividing each side by factors that don't contain the variable.
Exact Form:
x
=
13
3
x
=
13
3
Decimal Form:
x
=
4.
¯
3
x
=
Mixed Number Form:
x
=
4
1
3
Answer:
15
Step-by-step explanation:
You have to calculate the boys name using ratio expression.
3/5 × 25
= 15
You divide 71 by 9 to get 7 8/9
