(ALGEBRA ll) 1. The set {0, 1} is closed under which operation?

Question

a. multiplication
b. none of the above
c. subtraction
d. addition


2. Find A ∩ B
A = {2, 3, 4, 5, 6} B = {3, 6, 9, 12, 15}

a. {3, 6}
b. {2, 4, 5, 9, 12, 15}
c. {2, 4, 5}
d. {9, 12, 15}


3. Which expression is greater than -|-9.02|?

a. -|-9.02|
b. -(-(-9.02))
c. |-(-9.02)|
d.-|-(-9.02)|


4. Which number is one-fourth of the way between 3 and 11.4?

a. 5.1
b. 8.4
c. 9.3
d. 14.4


5. Which property is shown?
k • (7 - 9) = (k • 7) (k • 9)

a. Commutative Property of Multiplication
b. Multiplicative Property
c. Multiplicative Inverse Property
d. Distributive Property


6. What is the value of -(-4)^3?

a. -64
b. -12
c. 12
d. 64


7. What is the value of (x + 4)(x - 3) when x = 3?

a. -3
b. 0
c. 1
d. 4

Answer 1

1) a & d

2) a

3) c

4) a

5) d

6) d

7) b

Answer 2

I'll help you along the way, but will not give you the final answers. You should think for yourself! :)



1. A set has closure if you can do that operation in any direction and always get a number that belongs to that set. Thus, it is NOT closed under subtraction because 0 - 1 = -1, which is not in the set.



2. A ∩ B is the intersection of A and B. This can be thought of like... "What values to A and B share, and A ∩ B is the set that contains ONLY those vales."



3. Remember that absolute values give you the positive result of whatever is inside them, and then the negative sign OUTSIDE makes it negative.



4. This can be found like a one-dimensional distance. Subtract 3 from 11.4 and get 8.4, and then take one fourth of that. With the new number (One fourth of 8.4), you can add it to 3 to get your answer.



5. There isn't really any way to not give you the answer here, so it's distributive. You should learn the difference between associative, commutative, and distributive :)



6. Remember that negative numbers cubed produce a negative number (Like, -1 * -1 = 1, but -1 * -1 * -1 = -1). Use that and don't forget the negative sign out front!



7. Here, just plug 3 in for x. The answer should come right away.

Answer 3

you do no longer ask for many do you permit out Nana.......... properly right here is going, Algebra ll help please. a million. To which set of numbers does right here form belong? ?13 a. finished numbers b. organic numbers c. integers d. irrational numbers................answer 2. Use instruments A and B to respond to the question A ? B A = {2, 4, 9, 10} B = {3, 6, 9, 10} a. {2, 3, 4, 6, 10} b. {2, 3, 4, 6, 9, 10}.......................answer c. {9, 10} d. {2, 3, 4, 6} 3. what's the fee of -|-9 + x| - 24 whilst x = -5? a. -38.........................answer b. -18 c. 18 d. 38 4. Which form is one-a million/2 of how between 2.2 and eight.5? a. 3.15 b. 3.775 c. 4.3 d. 5.35.................answer 5. Which sources is shown? 7• (m + 9) = (7• m) + (7 • 9) a. Commutative sources of Multiplication b. Multiplicative identity c. Multiplicative Inverse sources d. Distributive sources.......................answer 6. what's the fee of -(-3^2)? a. -27 b. -9...............answer...........PROMIS... +9 c. 9 d. 27 7. what's the fee of right here expression whilst x = 3 and y = -2? 4x - y^3 a. -36 b. -20 c. 18 d. 20...................answer 8. that's the answer to the equation 3x - 4 = 5(x - 4)? a. x= -8 b. x= -3 c. x= 0 d. x= 8....................answer 9. that are the suggestions to the equation |2x + 3| + 5 = 12? a. x = -10 or x = 7 b. x = - 5 or x = 7 c. x = - 5 or x = 2...............answer d. x = 7 in user-friendly terms 10. what's the fee of L contained in right here formula whilst w = 14 cm and P = 80 cm? P = 2L + 2W a. 13 cm b. 26 cm...............answer c. 33 cm d. sixty six cm 11. Which expression is comparable to h, given right here formula? A = a million/2 bh a. A/2b b. 2A/b..................answer c. b/2A d. 2Ab 12. below which operations is the set of finished numbers {0, a million, 2, 3, …} closed? a. addition and multiplication....................answer b. branch and subtraction................................ get Fractions or negatives c. subtraction and multiplication d. addition and branch That wasn't so undesirable pass over Nana

Answer 4

1. a

2. a

3. c

4. a

5. If there is a '-' sign between the parentheses, the answer is d. As you have it written the statement is false.

6. d

7. b