Question

1. What is the simplified form of the following expression?
7m^2+6.5n-4n+2.5m^2-n (1 point)
A. 9.5m^2+1.5n
B. 4.5m^2+1.5n
C.1.5m^2-4.2n
D.9.5m^2-1.5n

Answer 1

like this???

Answer 2

its A :)

Answer 3

yes thank you so much!

Answer 4

np ^^ need a link to help u out more?

Answer 5

sure

Answer 6

http://www.mathpapa.com/algebra-calculator.html

Answer 7

thanks

Answer 8

np ^^

Answer 9

1.
What is the simplified form of the following expression?

7m2 + 6.5n – 4n + 2.5m2 – n
(1 point)
• (1 pt) 9.5m2 + 1.5n
• (0 pts) 4.5m2 + 1.5n
• (0 pts) 1.5m2 – 4.2n
• (0 pts) 9.5m2 – 1.5n
1 /1 point
2.
Simplify the following expression.

(21m + 27)
(1 point)
• (0 pts) 7m + 27
• (1 pt) 7m + 9
• (0 pts) 63m + 9
• (0 pts) 7m + 81
1 /1 point
3.
What is the sum?


(1 point)
• (0 pts)
• (1 pt)
• (0 pts)
• (0 pts)
0 /1 point
4.
Which property is illustrated by the following statement?

2x(6) = (6)2x
(1 point)
• (0 pts) Associative Property of Addition
• (1 pt) Commutative Property of Multiplication
• (0 pts) Inverse Property of Multiplication
• (0 pts) Commutative Property of Addition
1 /1 point
5.
Which property is illustrated by the following statement?

5g + 7 = 7 + 5g
(1 point)
• (0 pts) Commutative Property of Multiplication
• (0 pts) Inverse Property of Multiplication
• (1 pt) Commutative Property of Addition
• (0 pts) Associative Property of Addition
1 /1 point
6.
Order the following numbers from least to greatest.

, –0.4, , 0.8,
(1 point)
• (0 pts) 0.8, , , , –0.4
• (0 pts) , , 0.8, , –0.4
• (1 pt) , –0.4, 0.8, ,
• (0 pts) –0.4, 0.8, , ,
1 /1 point
7.
Which number sentence does the following number line represent?

(1 point)
• (0 pts) 6 + –4 = 2
• (0 pts) –4 + –6 = –10
• (1 pt) 4 + –6 = –2
• (0 pts) –2 + –6 = –8
1 /1 point
8.
To which subset of real numbers does the following number belong?


(1 point)
• (0 pts) rational numbers
• (1 pt) irrational numbers
• (0 pts) whole numbers, integers, rational numbers
• (0 pts) whole numbers, natural numbers, integers
0 /1 point
9.
Which sum or difference is equivalent to the following expression?


(1 point)
• (1 pt) x –
• (0 pts) x –
• (0 pts) x
• (0 pts)
1 /1 point
10.
What is the algebraic expression for the following word phrase: the sum of 6 and n ?
(1 point)
• (0 pts) 6 – n
• (1 pt) 6 + n
• (0 pts) n – 6
• (1 pt) n + 6
1 /1 point
11.
What is the algebraic expression for the following word phrase: the quotient of 7 and the sum of 3 and z?
(1 point)
• (0 pts)
• (0 pts)
• (0 pts)
• (1 pt)
0 /1 point
12.
What is the algebraic expression for the following word phrase: the quotient of j and 8?
(1 point)
• (0 pts) j – 8
• (0 pts) j + 8
• (1 pt)
• (0 pts) 8j
1 /1 point
13.
What is the difference?

–
(1 point)
• (0 pts)
• (0 pts) –
• (1 pt)
• (0 pts)
1 /1 point
14.
What is the simplified form of the following expression?


(1 point)
• (1 pt)
• (0 pts)
• (0 pts) 12
• (0 pts)
1 /1 point
15.
Which property is illustrated by the following statement?

(7p)mn = 7p(mn)
(1 point)
• (0 pts) Commutative Property of Multiplication
• (1 pt) Associative Property of Multiplication
• (0 pts) Inverse Property of Multiplication
• (0 pts) Commutative Property of Addition
1 /1 point
16.
Evaluate + np2 for m = 24, n = 6, p = 9, and q = 8.
(1 point)
• (0 pts) 114
• (1 pt) 489
• (0 pts) 580
• (0 pts) 2,919
0 /1 point
17.
What is the product?

4.3(–2.9)
(1 point)
• (0 pts) 12.47
• (1 pt) –12.47
• (0 pts) 7.74
• (0 pts) –5.22
1 /1 point
18.
What is the simplified form of the following expression?

(1 point)
• (0 pts)
• (1 pt)
• (0 pts)
• (0 pts)
1 /1 point
19.
Which word phrase can you use to represent the algebraic expression 4z?
(1 point)
• (1 pt) the product of 4 and a number z
• (0 pts) the sum of 4 and a number z
• (0 pts) the quotient of 4 and a number z
• (0 pts) the difference of 4 and a number z
1 /1 point
20.
Using the formula , where d is the distance in miles, r is the rate, and t is the time in hours, at which rate must you travel to cover 227.5 miles in 3.5 hours?
(1 point)
• (1 pt) 65 mph
• (0 pts) 75 mph
• (0 pts) 85 mph
• (0 pts) 95 mph
1 /1 point
21.
What is the simplified form of the following expression?

–(8n – 5v)
(1 point)
• (1 pt) –8n + 5v
• (0 pts) 8n + 5v
• (0 pts) 8n – 5v
• (0 pts) –8n – 5v
1 /1 point
22.
What is the simplified form of the following expression?

12[62 ÷ (52 – 42) + 7]
(1 point)
• (0 pts) 12.6
• (0 pts) 195
• (0 pts) 33.8
• (1 pt) 132
1 /1 point
23.
What is the simplified form of the following expression?


(1 point)
• (0 pts) –7t
• (1 pt) 7t
• (0 pts) –7s
• (0 pts) 7s
1 /1 point
24.
In a football game, a running back ran for –7 and –5 yards on his last two runs. His total yardage for the whole game is 78 yards. Which expression shows how many yards the running back had before those two runs?
(1 point)
• (0 pts) 78 – 5 – 7
• (0 pts) 78 – 5 + 7
• (0 pts) 78 + 5 – 7
• (1 pt) 78 + 5 + 7
0 /1 point
25.
What is the value of if x= –2, y= –3, and z = –4?
(1 point)
• (0 pts) 6
• (0 pts) –6
• (0 pts)
• (1 pt) –
0 /1 point
26.
Which statement about the product is true?

(1 point)
• (0 pts) The product is irrational.
• (0 pts) The product is neither rational nor irrational.
• (0 pts) The nature of the product cannot be determined.
• (1 pt) The product is rational.
0 /1 point
27.
Which of the following results in a sum or a product that is rational? Choose all that apply.
(3 points)
• (1 pt) 4 + 9
• (0 pts)
• (1 pt)
• (1 pt)
• (0 pts)
3 /3 points
28.
Molli purchased 8 apples for $2.96. While looking at her receipt, Molli divided $2.96 by 8. Why might Molli perform this calculation?
(1 point)
• (0 pts) in order to find the total number of apples purchased
• (1 pt) in order to find out how much she paid per apple
• (0 pts) in order to calculate the total amount that she owes
• (0 pts) in order to calculate how much money she has left
1 /1 point