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Lemur [1.5K]
3 years ago
7

Which expression represents the phrase "twice the sum of a number and three"?

Mathematics
2 answers:
Karo-lina-s [1.5K]3 years ago
5 0
<span>2(n+3)
"sum of" is the clue meaning whatever follows those words should be set off alone in parenthesis</span>
exis [7]3 years ago
3 0
2(n+3)
two times the sum of a number (n) and 3
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if a area of a triangle is 64 and if the base is twice as big of the height what are the base and height
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The formula for area of a triangle is A = bh/2, where b is the base length and h is the height of the triangle. For this triangle, the base is twice as big as the height; the base and height are represented as follows.

Height: h
Base: 2h

The area of the triangle is 64. Plug all values and expressions accordingly into the formula for area and solve algebraically for h.

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The height of the triangle is 8 units and the base is 16 units.
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