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3 years ago

Point B is the image of point A when point A is rotated about the origin. What is known about point A and B?

Mathematics

2 answers:

IRINA_888 [86]3 years ago

8 0

Answer:

Point B is the result of a 90° counterclockwise rotation.

Step-by-step explanation:

adell [148]3 years ago

5 0

D) Point A and point B are the same distance from the origin.

I just took the quiz on edge

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What numbers are 810 divisible by?

zlopas [31]

Answer:

1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810

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4 years ago

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Solve the proportion 9/2 = 27/2y

dalvyx [7]

Answer:

y = 3

Step-by-step explanation:

We need to solve the below proportion in this problem,

$\dfrac{9}{2}=\dfrac{27}{2y}$

First of all, we cross multiply both sides such that,

$9\times 2y=27\times 2\\\\18y=27\times 2$

Dividing both sides by 18.

$y=\dfrac{27\times 2}{18}\\\\y=3$

For the above proportion, we find that the value of y is equal to 3.

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3 years ago

The vertex of this parabola is at (3,5) when the y-value is 6 the x value -1 what is the coefficient of the squared term in the

ale4655 [162]

Answer:

1/16

Step-by-step explanation:

Here,

Vertex =(3,5)

x= -1, y=6

Simply,eqn of parabola is given by ax^2+bx+c=y

So, coefficient of squared term (x^2) is 'a'

Therefore, we've to find the value of a

Moving on to solution:

a-b+c=6 ___(i) (by putting the given values of x and y in eqn of parabola )

We know that,

Vetex=(-b/2a, ( 4ac-b^2)/4a)

(3,5) = (-b/2a , (4ac-b^2)/4a)

Equating corresponding sides,we get

3= -b/2a

b=-6a___(ii)

Again,

5=(4ac-b^2)/4a

5=(4ac/4a) - (b^2/4a)

5= c- (36a^2/4a) (by putting value of b from eqn ii )

5= c-9a___(iii)

Now,moving back to the first eqn

a+6a+5+9a=6

16a=1

therefore,a=1/16

Hence ,the required value of coefficient of squared term is 1/16.

I tried my best to give clear explanation as much as I know. It's just we've have to find the value of a . For that, you can use any method you find easier.

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3 years ago

What is the answer of 17 and 16

Vera_Pavlovna [14]

Answer:

Step-by-step explanation:

16) Cost price = Selling price * 100 / (100- loss%)

= 800 * 100 / 80 = 10*100 = 1000

Loss = Cost Price - Selling price = 1000 -800 = 200

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3 years ago

Each square below represents one whole

likoan [24]

Answer:

52.

Step-by-step explanation:

shaded = (3²) + (2²)

shaded = 9 + 4

shaded = 13

Unshaded = (3 x 2) + (2 x 3)

Unshaded = 6 + 6

Unshaded = 12

All = 12 + 13

All = 25

100 / 25 = 4

4 x 13 = 26 x 2

26 x 2 = 52.

8 0

2 years ago

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