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Gennadij [26K]
3 years ago
13

4.

Mathematics
1 answer:
NemiM [27]3 years ago
6 0

Answer:

i belive the answer is B

Step-by-step explanation:

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Evaluate f(7) *<br> f (x) = –2x² + 4
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f(7) = -94
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3 years ago
The heights of a maple tree and a cherry tree have a ratio of 5:2. If the maple tree grew 20 cm and 20 cm was cut off the top of
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Let x be the <span>heights of a maple tree and y be the height of the cherry tree.
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From the above equation we get x= (y-20)\frac{3}{1} -20.
then \frac{ (y-20)\frac{3}{1} -20}{y} = \frac{5}{2}
Solving the above equation for y we get: y=160
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So the first tree is (400-160=240) more taller than cherry tree. 
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А,
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In Triangle FGH, m<F = 42 and an exterior angle at vertex H as a measure of 104. What is the measure of <G?

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