1. Which pair of expressions below is equivalent?
a. x + y + x + y and 2(x + y)
b. 5x + 3x β...
Mathematics, 14.12.2020 23:40 tangia
1. Which pair of expressions below is equivalent?
a. x + y + x + y and 2(x + y)
b. 5x + 3x β 2y and β2y + 8x
c. 6x β 8y and 3(2x β 4y)
d. 9x(4) and 13x
2. The lowest point in the United States is in Death Valley. Its elevation is 282 ft.
below sea level. Which of the following choices expresses this elevation as an
integer?
a. 282
b. -282
c. 0
d. 94
Standard: 6.NS.3.5
Correct
Incorrect
3. Geographers use negative numbers to represent points below sea level, and
positive numbers to represent points above sea level. For example, the lowest
point in New Orleans is at β2 meters, and the highest point is at 6 meters.
What does 0 meters represent?
a. Sea level
b. The highest point in New Orleans
c. The lowest point in Baton Rouge
d. The lowest point in New Orleans
Answers: 3
Mathematics, 21.06.2019 16:30
The average human heart beats 1.15 \cdot 10^51.15β
10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65β
10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.
Answers: 1
Mathematics, 21.06.2019 20:30
Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.
Answers: 1
Mathematics, 21.06.2019 23:00
What unit of been sure would be appropriate for the volume of a sphere with a radius of 2 meters
Answers: 2
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