question 1
1.Write an expression using the phrase “the product of n and 23”
a- n + 23
b- n – 23
c- 23 n
d- 23 ÷ n
question 2
2. Evaluate the expression n + 16 if n = -5.
a 11
b −11
c 21
d −21
question 3
3. Evaluate the expression 2 x – 6 y if x = 5 and y = 6.
a. 46
b. 26
c. -26
d. -18
question 4
4.Which of the following would be an algebraic expression for the following phrase?
The product of 15 and a number squared
a. x exponet 2-15
b. 15 x exponet 2
c. x exponet 2+15
d. 15/ x exponet 2
im going to post the other half once i do that i will tell you what i made on my test
Q1: What does product mean? It means it involves multiplication. Therefore, your answer is 23n, or option C
Q2: Just substitute n=-5 into the expression. -5+16=11, so it's A
Q3: Again, like in problem 2, substitute x=5 and y=6 into the expression. 2(5)-6(6)=10-36=-26, so it's C
Q4: A number squared would mean x^2, or x*x. Multiplying 15 with x^2 gets you 15x^2, so B is correct
Q5: 12 + (-8*n) = 12-8n, so B is correct
Q6: The leading coefficient is in the first term, which is 8, so A is correct.
Q7: B is correct because the commutative property states that a*b=b*a for multiplication and a+b=b+a for addition
Q8: This is just substitution, so C is correct.
Let me know if my explanations made sense!
question 16
16.Solve the equation.
m – 15 = − 16
a. −1
b. −31
c. −240
d. −16
question 17
17. Write an equation for the following word problem. Then, solve.
A basketball team starts out with a certain number of players. Eight of them are unable to play in the game. There are twenty in total that will be able to play in the game. How many players did the team start with?
a. p + 20 = 8, 28 players
b. p – 20 = 8, 12 players
c. p + 8 = 20, 12 players
d. p – 8 = 20, 28 players
question 18
18.Solve the equation.
−42 = 3x
a. −45
b. −14
c. −126
d. −39
question 19
19.Solve the equation.
negative 8 equals a over 12
a. 4
b. −20
c. −2
d. −96
question 20
20.Solve the equation.
y over 2 equals negative 15
a. −15
b. −30
c. −17
d. −13
question 21
21.Solve the equation.
−15a = −255
a. 17
b. 3825
c. −270
d. 240
question 22
22.Solve the equation.
x + 7.4 = 13.6
a. 6.2
b. 21
c. 100.64
d. 1.83
question 23
23.Write an equation for the following word problem. Then, solve.
A basketball player was able to make a certain number of free throws in a row on Monday. On Friday, she made 21 free throws in a row, tripling the amount she made on Monday. How many free throws did she make in a row on Monday?
a. 3 f + 21, 7 free throws
b. [image] = 21, 7 free throws
c. 3 f = 21, 7 free throws
d. [image] = 21, 7 free throws
question 5
5. Which of the following would be an algebraic expression for the following phrase?
The sum of 12 and the product of −8 and n
a. 12 + 8 n
b. −8n + 12
c. −8n – 12
d. None of the above
question 6
6.Using the expression 8 x^2 - 4 x^4 - 7x - 5 x^3 + 2 what is the leading coefficient?
a. 8
b. −7
c. −4
d. −5
question 7
7.Which of the following correctly illustrates the commutative property?
a. 8 × 3 = 8 + 3
b. 8 × 3 = 3 × 8
c. 8 + (3 + 9) = (8 + 3) + 9
d. 8 + (−8) = 0
question 8
8.Identify the property illustrated below.
If a = 3, then a + 0 = 3 + 0.
a. commutative
b. associative
c. substitution
d. symmetric
question 9
9. Which property allows you to add zero to a number without changing the value of the number?
a. Reflexive
b. Associative
c. Symmetric
d. Identity
question 10
10.Simplify: 2 x – 6 y + 3 y + 5 x
a. 5 x – 3 y
b. −8x + 8y
c. 7 x – 3 y
d. 5 y – x
question 11
11.Simplify: 14 n^2 – 6 m^2 – 2 n^2 – 5 m^2
a. 8 n^2 – 7 m^2
b. 16 n^2 + 11 m^2
c. 12 n^2 – 1^2
d. 19 n^2 + 8 m^2
hey thank for part of the answers AJ L imma post the rest its like 23 questions ;p
question 12
12.Solve the equation.
m – 8 = −12
a. 4
b. −20
c. −4
d. 20
question 13
13.Solve the equation.
2 = x + 8
a. −10
b. 10
c. 6
d. −6
question 14
14.Solve the equation.
r + 5 = 7
a. 2
b. 35
c. 12
d. −2
question 15
15.Solve the equation.
−21 = x – 13
a. −34
b. −21
c. −273
d. −8
Question 1:
To write an expression for "the product of n and 23," you need to multiply n by 23. Therefore, the correct expression is c- 23n.
Question 2:
To evaluate the expression n + 16, you substitute the value of n which is -5. So, you have -5 + 16. Evaluating this expression gives you 11. Therefore, the answer is a- 11.
Question 3:
To evaluate the expression 2x - 6y, you substitute the values of x = 5 and y = 6. So, you have 2(5) - 6(6). Simplifying this expression gives you 10 - 36 = -26. Therefore, the answer is c- -26.
Question 4:
To write an algebraic expression for "The product of 15 and a number squared," you need to square a number, represented as x, and then multiply it by 15. The correct expression would be b- 15x^2.
I hope these explanations help! Let me know if you have any further questions.