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ozzi
3 years ago
6

Find the difference. (5x 2 - 3x + 7) - (3x 2 + 4x - 5)

Mathematics
1 answer:
GREYUIT [131]3 years ago
3 0
If you simplify this expression you get 2x 2 -7x -2

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Describe the transformation required to obtain the graph of the given function from the basic trigonometric graph.
mamaluj [8]

Answer:

Option c. Reflection across the x-axis and vertical stretch by a factor of 7

Step-by-step explanation:

If the graph of the function y = cf(x) represents the transformations made to the graph of y = f(x) then, by definition:

If 0 then the graph is compressed vertically by a factor a.

If |c| > 1 then the graph is stretched vertically by a factor a.

If c then the graph is reflected on the x axis.

In this problem we have the function y = -7secx and our paretn function is y = secx

therefore it is true that

c = -7\\\\|-7|> 1\\\\-7.

Therefore the graph of y = secx is stretched vertically by a factor of 7 and is reflected on the x-axis

Finally the answer is Option c

6 0
3 years ago
a ladder leans against the sufe of a house. the angle of elevation of the ladder is 70 degrees when the bottom of the ladder is
nekit [7.7K]

Answer:

≈ 35.1 ft

Step-by-step explanation:

The model is a right triangle with ladder being the hypotenuse and the angle between the ground and the ladder is 70°

Using the cosine ratio, with l being the length of the ladder.

cos70° = \frac{adjacent}{hypotenuse} = \frac{12}{l} ( multiply both sides by l )

l × cos70° = 12 ( divide both sides by cos70° )

l = \frac{12}{cos70} ≈ 35.1 ( to the nearest tenth )

The ladder is approx 35.1 ft long

4 0
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Pls help me with this
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6 0
3 years ago
How much interest will $1,200 earn over 10 years with 5% interest compounded annually
Amiraneli [1.4K]

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$1,954

Step-by-step explanation:

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2 years ago
If A is the center of the circle, which of these are radii?
loris [4]

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D. A E

Step-by-step explanation:

BEACAUSE THE A IS NEAR TO THE E

6 0
2 years ago
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