Answer:
To select a <u>stratified</u> random sample, first classify the population into groups of similar individuals, then choose a separate SRS in each group and combine these SRS to form the full sample
Step-by-step explanation:
Stratified random sampling involved dividing the population into small groups of similar individuals (called strata) and then from among those groups, a stratified random sample is selected and then, all these samples are combined to form the full sample. Hence, the missing word in this sentence is <u>stratified.</u>
Use quadrratic equation discriminant
for
ax²+bx+c=0
if b²-4ac is the discriminant
if it is greater than 0, then it has 2 real number solutions
if it is equal to 0 then it has 1 real number solution
if it is less than 0 then it has 0 real number solutions
so
1x²+3x+j=0
b²-4ac=3²-4(1)(j)
9-4j
to have it have a real number solution, it must be greater than 0
9-4j>0
9>4j
9/4>j
j<9/4 is the solution area
Answer:
x = 24°
Step-by-step explanation:
What do the sum of all angles in a triangle add up to?
- The sum of all angles in a triangle add up to 180°.
First, let's find the missing angle of the big triangle (the angle next to 111°).
- 94 + 41 = 135
- 180 - 135 = 45°
Now, we can find the value of x given the smaller triangle's angle.
- x + 111 + 45 = 180
- x + 156 = 180
- x = 24
Therefore, x = 24°.
Have a lovely rest of your day/night, and good luck with your assignments! ♡
I'm pretty sure the answer is 24
In order to simplify the expression (b+11)2b, we need to use the concept of distributive property.
Distributive property:
The distributive property of multiplication over addition can be used when you multiply a number by a sum.
Our expression is:
2b(b+11)
Applying distributive property here :
Answer: 
