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3 years ago

Find the measures of two angles, one positive and one negative, that are coterminal with pi divided by seven.

Mathematics

1 answer:

kotegsom [21]3 years ago

3 0

Check the picture below.

you simply come "clockwise" to get the negative angle.

and to get the positive angle, simply go around 2π and then add π/7 to it.

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Between which two ordered pairs does the graph of f(x) = one-halfx2 + x – 9 cross the negative x-axis?

Anit [1.1K]

Answer:

Step-by-step explanation:

we have that

$f(x) = x^2 + x - 9$

Using a graph tool

see the attached figure

The function represent a vertical parabola that open up

the vertex is a minimum-------> is the point (-0.5, -9.3)

The x-intercepts are the points when the y coordinate is equal to zero

The x-intercepts are the points (-3.5, 0) and (2.5, 0)

the function cross the negative x-axis at point

therefore, the answer is

(-4, 0) and (-3, 0)

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3 years ago

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A pair of pants with a marked tag of $35.00 has a discount of 20%. How much is the discount?

melisa1 [442]

$35.00 x .20 = $7

So the discount would be $7 off of $35, for a final sale price of $28

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3 years ago

Which equation represents the line that has a slope of 1/2 and contains the point (0, 3)?

RideAnS [48]

Y - 3 = 1/2 (x) ......

4 0

3 years ago

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Estimate the product by rounding 2 x 6,254

Pavlova-9 [17]

5 × 6,254= 31,300 is the awnser :)

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3 years ago

These ordered pairs, {(2,4) (3,6) (4,8) (5,10)}, are a function. True False

ki77a [65]

Answer:

True

Step-by-step explanation:

In order for a relation (a set of ordered pairs) to be considered a function, every value in the domain (the set of all the first numbers in the pair) is associated with one value in the range (the set of all second numbers in the pair). This is easiest to see visually. Our domain is the set {2, 3, 4, 5} and our range is the set {4, 6, 8, 10}, and we can visualize the ordered pair (2, 4) as an "arrow" starting a 2 in the domain and ending at 4 in the range. When seen this way, a relation is a function if every value in the domain only has one arrow coming out of it. We can see from the attached picture that the ordered pairs in the problem are a function, so this statement is true.

8 0

4 years ago