What is the product?
4.3(–2.9)
(1 point)
12.47
–12.47
7.74
–5.22
25 answers
The product of 4.3 and -2.9 is -12.47.
What is the simplified form of the following expression?
three-fifths cubed
(1 point
twenty-seven-one hundred twenty-fifths
152
3,375
one hundred twenty-five-twenty-sevenths
three-fifths cubed
(1 point
twenty-seven-one hundred twenty-fifths
152
3,375
one hundred twenty-five-twenty-sevenths
The simplified form of "three-fifths cubed" is 27/125.
Which word phrase can you use to represent the algebraic expression 6y?
(1 point)
6 less than a number y
the sum of 6 and a number y
the product of 6 and a number y
the quotient of a number y and 6
(1 point)
6 less than a number y
the sum of 6 and a number y
the product of 6 and a number y
the quotient of a number y and 6
The word phrase "the product of 6 and a number y" can be used to represent the algebraic expression 6y.
Using the formula r equals d over t, 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 212.5 miles in 2.5 hours?
(1 point)
71 mph
106 mph
150 mph
85 mph
(1 point)
71 mph
106 mph
150 mph
85 mph
To find the rate at which you must travel to cover 212.5 miles in 2.5 hours, you can divide the distance by the time in the formula r = d/t.
r = 212.5 miles / 2.5 hours = 85 mph
Therefore, the rate at which you must travel to cover the given distance in the given time is 85 mph.
r = 212.5 miles / 2.5 hours = 85 mph
Therefore, the rate at which you must travel to cover the given distance in the given time is 85 mph.
What is the simplified form of the following expression?
–(8n – 5v)
(1 point)
–8 n + 5 v
8n + 5v
8 n – 5 v
–8n – 5v
–(8n – 5v)
(1 point)
–8 n + 5 v
8n + 5v
8 n – 5 v
–8n – 5v
The simplified form of the expression –(8n – 5v) is –8n + 5v.
What is the simplified form of the following expression?
12[62 ÷ (52 – 42) + 7]
(1 point)
12.6
195
33.8
132
12[62 ÷ (52 – 42) + 7]
(1 point)
12.6
195
33.8
132
To simplify the expression 12[62 ÷ (52 – 42) + 7], we need to follow the order of operations, which is parentheses, exponents, multiplication and division (from left to right), and addition and subtraction (from left to right).
First, we simplify the expression inside the parentheses:
52 – 42 = 10
Next, we divide 62 by 10:
62 ÷ 10 = 6.2
Now we have:
12[6.2 + 7]
Next, we add 6.2 and 7:
6.2 + 7 = 13.2
Finally, we multiply 12 by 13.2:
12 * 13.2 = 158.4
Therefore, the simplified form of the expression is 158.4.
First, we simplify the expression inside the parentheses:
52 – 42 = 10
Next, we divide 62 by 10:
62 ÷ 10 = 6.2
Now we have:
12[6.2 + 7]
Next, we add 6.2 and 7:
6.2 + 7 = 13.2
Finally, we multiply 12 by 13.2:
12 * 13.2 = 158.4
Therefore, the simplified form of the expression is 158.4.
What is the simplified form of the following expression?
StartFraction 10 y z over negative 2 z EndFraction
(1 point)
negative 5 y z
negative 5 y
negative 5 y z squared
5y
StartFraction 10 y z over negative 2 z EndFraction
(1 point)
negative 5 y z
negative 5 y
negative 5 y z squared
5y
The simplified form of the expression StartFraction 10yz over negative 2z EndFraction is negative 5y.
The temperature at the end of the day was 64 degrees. The temperature had increased twice during the day, once by 8 degrees and another time by 4 degrees.
Which expression shows what the temperature was at the start of the day?
(1 point)
64 – 8 – 4
64 + 8 – 4
64 – 8 + 4
78 + 5 + 7
Which expression shows what the temperature was at the start of the day?
(1 point)
64 – 8 – 4
64 + 8 – 4
64 – 8 + 4
78 + 5 + 7
To find the temperature at the start of the day, we need to subtract the total increase from the end temperature.
The temperature increased by 8 degrees and then by 4 degrees, which makes a total increase of 8 + 4 = 12 degrees.
To find the starting temperature, we subtract the total increase from the end temperature:
64 - 12 = 52
Therefore, the expression that shows what the temperature was at the start of the day is 64 - 8 - 4, which simplifies to 52.
The temperature increased by 8 degrees and then by 4 degrees, which makes a total increase of 8 + 4 = 12 degrees.
To find the starting temperature, we subtract the total increase from the end temperature:
64 - 12 = 52
Therefore, the expression that shows what the temperature was at the start of the day is 64 - 8 - 4, which simplifies to 52.
What is the value of xy over w if x = –3, y = 4 and w = –6.
(1 point)
2
–2
one-half
–one-half
(1 point)
2
–2
one-half
–one-half
To find the value of xy/w with x = -3, y = 4, and w = -6, we substitute these values into the expression:
xy/w = (-3)(4)/(-6)
Simplifying the numerator (-3)(4) = -12 and the denominator (-6), we get:
-12/(-6) = 2
Therefore, the value of xy/w with the given values is 2.
xy/w = (-3)(4)/(-6)
Simplifying the numerator (-3)(4) = -12 and the denominator (-6), we get:
-12/(-6) = 2
Therefore, the value of xy/w with the given values is 2.
Which statement about the product is true?
7.56 times 6 point ModifyingAbove 7 with bar
(1 point)
The product is irrational.
The product is rational.
The product is neither rational nor irrational.
The nature of the product cannot be determined.
7.56 times 6 point ModifyingAbove 7 with bar
(1 point)
The product is irrational.
The product is rational.
The product is neither rational nor irrational.
The nature of the product cannot be determined.
The statement "The product is rational" is true.
Which of the following results in a sum or a product that is rational? Choose all that apply.
(2 points)
4 + 9
pi times 5
3 point ModifyingAbove 45 with bar times 1.2
StartRoot 16 Endroot times StartRoot 4 EndRoot
StartRoot 7 EndRoot times StartRoot 2 EndRoot
(2 points)
4 + 9
pi times 5
3 point ModifyingAbove 45 with bar times 1.2
StartRoot 16 Endroot times StartRoot 4 EndRoot
StartRoot 7 EndRoot times StartRoot 2 EndRoot
The options that result in a sum or product that is rational are:
4 + 9
3.45 times 1.2
The product of StartRoot 16 EndRoot times StartRoot 4 EndRoot
Therefore, options 1, 3, and 4 result in a sum or product that is rational.
4 + 9
3.45 times 1.2
The product of StartRoot 16 EndRoot times StartRoot 4 EndRoot
Therefore, options 1, 3, and 4 result in a sum or product that is rational.
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)
in order to find the total number of apples purchased
in order to find out how much she paid per apple
in order to calculate the total amount that she owes
in order to calculate how much money she has left
(1 point)
in order to find the total number of apples purchased
in order to find out how much she paid per apple
in order to calculate the total amount that she owes
in order to calculate how much money she has left
Molli might divide $2.96 by 8 in order to find out how much she paid per apple.
A gym membership costs $25 to join and $14 each month. Write and use an algebraic expression to find the cost of the gym membership for 6 months.
To find the cost of the gym membership for 6 months, we need to consider the joining fee of $25 and the monthly fee of $14 for each month.
Let's define a variable to represent the total cost for 6 months. We can call this variable C.
The cost for 6 months can be calculated by adding the joining fee to the product of the monthly fee and the number of months:
C = 25 + 14 * 6
Simplifying this expression, we get:
C = 25 + 84
C = 109
Therefore, the cost of the gym membership for 6 months would be $109.
Let's define a variable to represent the total cost for 6 months. We can call this variable C.
The cost for 6 months can be calculated by adding the joining fee to the product of the monthly fee and the number of months:
C = 25 + 14 * 6
Simplifying this expression, we get:
C = 25 + 84
C = 109
Therefore, the cost of the gym membership for 6 months would be $109.