4(-2) is modeled on the number line.
Step-by-step explanation:
Step 1:
The multiplication problem's answer is -8, so first, we need to determine which options actually equal the answer.
We individually determine how much each of the options equal.
Step 2:
, option 1 equals -8, so it could be the answer.
option 2 does not equal -8, so it cannot be the answer.
option 3 also does not equal -8, so it cannot be the answer.
option 4 does, so it could be the answer.
Step 3:
In the number line, 4 arrows are equalling -2 every time. So the answer is option 4. 
.
Answer:
(a)
(b) 
Step-by-step explanation:
GIVEN: Suppose that two cards are randomly selected from a standard 
card deck.
TO FIND: (a) What is the probability that the first card is a club and the second card is a club if the sampling is done without replacement? (b) What is the probability that the first card is a club and the second card is a club if the sampling is done with replacement.
SOLUTION:
(a)
Probability that first card is club 
As sampling is done without replacement.
probability that second card is club 
Probability that first card is club and second card is club 
(b)
Probability that first card is club
As sampling is done with replacement.
probability that second card is club
Probability that first card is club and second card is club
Answer:36%
Step-by-step have 12+18+20 which equals 50 and 18 out of 50 is 36%
The correct answer is option B that is Each white blood cell contains millions of haemoglobin molecules. All blood cells come from one pool of stem cells.
The complete question is given below:-
Which of the following statements are true?
I. Each white blood cell contains millions of haemoglobin molecules.
II. In a sample of blood, there are more red blood cells than white blood cells.
III. HIV destroys red blood cells.
IV. All blood cells come from one pool of stem cells.
A. II and IV only
B. I and IV only
C. II and III only
D. I, III, and IV only
E. I, II, and IV only
<h3>What are blood cells?</h3>
The most prevalent form of blood cell and the main source of oxygen for the bodily tissues of vertebrates, red blood cells are also known as red cells, red blood corpuscles, haematids, erythroid cells, or erythrocytes. They circulate through the blood through the circulatory system.
Therefore the correct answer is option B that is Each white blood cell contains millions of haemoglobin molecules. All blood cells come from one pool of stem cells.
To know more about blood cells follow
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Answer:
9 and 15
Step-by-step explanation:
9 + 15 = 24/ 2 = 12
15 - 9 = 6
