Answer:
/2=1.41
/5=2.24
(a)^2+(b)^2=(c)^2
(1.41)^2+(b)^2=(2.24)^2
2+(b)^2=5
(b)^2=5-2
(b)^2=3
b=/3 or 1.73
Step-by-step explanation:
for a triangle, a missing value of the side can be found using pythagorean theorem which is (a)^2+(b)^2=(c)^2
replace it with the given value.
*note:(c)^2 should be the hypotenuse
inverse of +ve is -ve
inverse of square is square root
Answer:
The estimate is 
Step-by-step explanation:
From the question we are told that
The sample size is n = 522
The sample proportion of students would like to talk about school is 
Given that the confidence level is 90 % then the level of significance can be mathematically evaluated as



Next we obtain the critical value of
from the normal distribution table, the value is

Generally the margin of error can be mathematically represented as

=> 
=> 
Generally the estimate the proportion of all teenagers who want more family discussions about school at 90% confidence level is

substituting values

Answer:
false statement
Step-by-step explanation:
5+x^2=2x^2+13
5+x^2-2x-13=0
-8+x^2-2x^2=0
-8-x^2=0
-x^2=8
x^2=-8
this statement is false for any value of x because the power function with an even exponent is always postive or 0
Answer:
Hello seansgirl1013!! I might be wrong but im pretty sure your answer is B!
Step-by-step explanation:
I hope this helps and remember your beautiful
Answer:
x = 9
Step-by-step explanation:
5x+4 = 49
subtract 4 from both sides
5x = 45
divide both sides by 5
x = 9