2/5 in a decimal form= 0.4
2/5 in a percentage form= 40%
Hope this Helps!
1/2 and 1/6 because there is heads and tails and to get probability of tails it is 1/2 and you can get 6 only one time so 1/6
Answer:
Option B 3,-3,-6 is correct.
Step-by-step explanation:
We need to find real zeroes of 
Solving

Taking x^2 common from first 2 terms and -9 from last two terms we get

Taking (x+6) common

x^2-9 can be solved using formula a^2-b^2 = (a+b)(a-b)

Putting it equal to zero,

So, Option B 3,-3,-6 is correct.
Answer:
C. The president rejects the hypothesis that the proportion of students who earn a bachelor's degree within six years is 0.398, when, in fact, the proportion is 0.398.
Step-by-step explanation:
A type I error occurs if you reject the null hypothesis when it is true.
Now the hypotheses are:

The proportion is 0.398

The proportion is less than 0.398
If in actual fact the proportion is 0.398, then the president must not reject the

.
This is a correct decision.
If in actual fact the proportion is 0.398, and the president rejects the

, then a type I error is committed.
The correct choice is C.
Answer:
180
Step-by-step explanation:
find the height by using pythagoras theorem
25²=7²+h²
h=24
then by using trapezium area formula, you will get it
