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3 years ago

If 0 lies in the quadrant IV. What can be the value of cos 0?

Mathematics

2 answers:

marissa [1.9K]3 years ago

4 0

Answer:

Step-by-step explanation:

Since Θ is in the fourth quadrant where cosΘ > 0

The only positive values are B / D

since 0 < cosΘ < 1

$\frac{\sqrt{41} }{5}$ > 1 then

D is the appropriate response

OLga [1]3 years ago

3 0

Answer:

Step-by-step explanation:

option A and B can not be because square root of 41 is irrational number option C can not be because in 4th quadrant cos is positive so option D is correct.

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Which equation represents a parabola that opens upward, has a minimum value of 3, and has an axis of symmetry at x= 3?

Ilya [14]

Answer:

$y=(x-3)^2+3$

Step-by-step explanation:

The correct question is

Which equation represents a parabola that opens upward, has a minimum value of y=3, and has an axis of symmetry at x= 3?

Verify each case

case 1) we have

$y=(x+3)^2-6$

This a vertical parabola open upward (the leading coefficient is positive)---> is ok

The vertex represent a minimum ---> is ok

The vertex is the point (-3,-6)

The minimum value of y=-6 ----> is not ok

The axis of symmetry is x=-3 ----> is not ok

case 2) we have

$y=(x+3)^2+3$

This a vertical parabola open upward (the leading coefficient is positive)---> is ok

The vertex represent a minimum ---> is ok

The vertex is the point (-3,3)

The minimum value of y=3 ----> is ok

The axis of symmetry is x=-3 ----> is not ok

case 3) we have

$y=(x-3)^2-6$

This a vertical parabola open upward (the leading coefficient is positive)---> is ok

The vertex represent a minimum ---> is ok

The vertex is the point (3,-6)

The minimum value of y=-6 ----> is not ok

The axis of symmetry is x=3 ----> is ok

case 4) we have

$y=(x-3)^2+3$

This a vertical parabola open upward (the leading coefficient is positive)---> is ok

The vertex represent a minimum ---> is ok

The vertex is the point (3,3)

The minimum value of y=3 ----> is ok

The axis of symmetry is x=3 ----> is ok

6 0

3 years ago

Plz help! Determine whether the equation represents a direct variation. If it does, find the constant of variation.

Finger [1]

Answer:

It does not have a direct variation, because y doesnt vary directly with x

Step-by-step explanation:

Hope This Helps!!!

8 0

3 years ago

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Need help solving for the midpoint between point a and point b

k0ka [10]

A is located at (-3,-5) B is located at (1,-9)

-3 + 1 = -2/2 =-1

-5 + -9 = -14/2 = -7

midpoint is (-1,-7)

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3 years ago

Please Help ASAP!!! Its My Pre Algebra Exam!

const2013 [10]

Answer:

The brainly terms of service states that you can not use Brainly for tests or exams. Please do not do this.

Step-by-step explanation:

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2 years ago

#15 i

MA_775_DIABLO [31]

The inequality which represents the missing dimension x is x≥1.6 or x≥8 / 5.

Given that the area is greater than or equal to 8 square feet and image is attached below.

We want to find the missing inequality x in the form of inequality.

The figure is assumed to be a right triangle with Root = x and perpendicular = 10ft.

As we know the area of a triangle is half the product of the base and the height.

First of all, we will find the area of the triangle by substituting the given values we get

Area=(1/2)×Base×height

Area=(1/2)×x×10

Area=5x ......(1)

Assume that this area is greater than or equal to 8 square feet.

That means Area≥8ft² ......(2)

Now we will balance equation (1) and equation (2), we get

5x≥8ft²

Furthermore, they we will divide both sides by 5 we get

(5x)/5≥8/5

x≥8/5

x≥1.6

Therefore, the inequality represents the missing size x when the area is larger or equal to 8 square feet is x ≥1.6ft².

Learn more about the dimension from here brainly.com/question/13271352

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4 0

1 year ago

If 0 lies in the quadrant IV. What can be the value of cos 0?​

If 0 lies in the quadrant IV. What can be the value of cos 0?