Which algebraic rule describes the 90° clockwise rotation about the origin?

A) (x, y) = (-x, y)

B) (x, y) = (x,-y)

C) (x, y) - (y, -x)

D) (x,y) - (-y, x)

Answer:

(-1,4)

Step-by-step explanation:

First lets put the two equations into y=mx+b format by subtracting 2x and 4x to the right side of their equations.

y=-2x+2

y=-4x+0

Now you can put this into a system of equations, but you can also plug in the coordinates to see if both equations are equal. I will show system of equations solution.

-2x+2=-4x, solve this by adding -2x to the right side so that the 2 is by itself.

Now you have 2=-2x. Divide by -2 to get the x by itself, now you have x=-1. Plug this back into one of the equations, so y=-4x would be y=-4(-1), so y=4.

Answer:

-1,4

hope that helps you

Answer:

The volume of the olive oil is 661.4583 cm³

Step-by-step explanation:

The rule of the density of an object is d = M ÷ V, where

∵ A bottle is filled with 635 g of olive oil

∴ M = 635 g

∵ The olive oil has a density of 0.96 g/cm³

∴ d = 0.96 g/cm³

→ Substitute them in the rule above

∵ 0.96 = 653 ÷ V

→ Multiply both sides by V

∴ 0.96 V = 635

→ Divide both sides by 0.96

∴ V = 661.4583 cm³

∴ The volume of the olive oil is 661.4583 cm³

Answer:

3

Step-by-step explanation:

25/5= 5 (the quotient)

5-2=3 (two less)

Step-by-step explanation:

sorry, i cant quite answer it. your picture is a bit blurry. send another one?

Answer

85%

Step-by-step explanation:

34/40=0.85

Answer:

85%

Step-by-step explanation:

Easy way to solve this is just to divide 34 and 40.

34÷40=0.85.

Then you multiply 0.85 by 100 to get the decimal to the front.

0.85 x 100=85

85%

Answer:

The slop is 1 and the y intecept is 2

Step-by-step explanation:

Answer:

Slope=3

Y intercept=2

I hope this helps you! Do you need any more help with your final?

Answer:

-5p-55

Step-by-step explanation:

multiply -5 by p and -5 by 11

Answer:

$8.46

Step-by-step explanation:

This is assuming that the sales tax is applied on the pre discounted item.

Answer:

−7-7

Step-by-step explanation:

Add the numbers

Combine like terms

Answer:

This it the right answer −7x−7

Step-by-step explanation:

Answer: 36 games

Step-by-step explanation:

75% is 3/4

1/4 of 48 is 12, thus 3/4 of 48 is 36

Therefore, the baseball team won 36 games

Answer:

help me im dying

Step-by-step explanation:

Answer:

[tex]y = 6[/tex]

Step-by-step explanation:

hope it helps

plzz mark as brainliest....

Answer:

B: 11

Step-by-step explanation:

121 is the area. Since a square is a shape with all even sides you need to find one number that multiplies by itself to get 121. 11x11=121

B: 11

Answer:

b. 1/6 yd

Step-by-step explanation:

When Betty used 1/2 OF the 1/3 yards she has she has to multiple those. It's easier to put it in a sentence in my opinion because then you can see the "of" in the sentence which means to multiply. Hope this helps!

Answer:

D. [tex] \frac{1}{4} [/tex]

Step-by-step explanation:

Given that rectangle V'W'X'Y' is a dilation of rectangle VWXY, this means that the dimensions of rectangle VWXY was reduced by to get the dimensions of V'W'X'Y'.

Therefore, the ratio of any segment of V'W'X'Y', to a corresponding segment of VWXY would be equal to the scale factor.

W'X' = 5

WX = 20

Therefore:

Scale factor = [tex] \frac{5}{20} = \frac{1}{4} [/tex].

A scale factor that is a fraction tells us that the original figure reduced in size resulting into another new figure whose sides are of proportional lengths to the original figure.

In other words, the original figure was compressed go form a new figure.

Answer:

B is a solution, A and C are not

Step-by-step explanation:

Answer: (1,5) = No

(0,7) = yes

(-3,-6) no

Step-by-step explanation:

(1,5) is outside the double shaded region and (-3,-6) is on the dash lined therefore its ruled outside as well

Answer:

The answer is

y = 6x + 43

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To find the equation of the parallel line we must first find the slope of the original line

The original line is y = 6x + 1

Comparing with the general equation above

Slope = 6

Since the lines are parallel their slope are also the same

Slope of parallel line = 6

The equation of the line using point (-7,1) and slope 6 is

We have the final answer as

y = 6x + 43

Step-by-step explanation:

srry if this is wring, its what i got also pls give brainliest, im trying to get to vituoso :3

Answer:

Velocity = Distance / Time

v = d/t

v = 180m/30s

v = 60 m/s

The average velocity 60 m/s

Answer:

Graph

Step-by-step explanation:

Answer:

can u inlcieh a pic

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Let T represent the total number of turtle nests found during the season.

The 28 turtle nests was 40% of 0.4 of the total. Therefore:

[tex]28=0.4T[/tex]

So, to find T, divide both sides by 0.4:

[tex]T=70[/tex]

So, the total number of turtle nests the group found during tthe season was 70.

Hence, our answer is A.

Answer:

(5, 9 )

Step-by-step explanation:

Under a reflection in the y- axis

a point (x, y ) → (- x, y ), thus

(- 5, 9 ) → (5, 9 )

Answer:

B

Step-by-step explanation:

Answer:

B. ry=–x(x, y) → (–y, –x)

Step-by-step explanation:

Answer:

I think its 66 but i dont know. i took the test and had the same question but teachers are different

Step-by-step explanation:

Answer:

33 deg

Step-by-step explanation:

Since <POQ is a right angle, lines MQ and PO are perpendicular. That makes <PON a right angle with measure 90 deg.

m<MOP + m<MON = m<PON

3x - 3 + 4x + 9 = 90

7x + 6 = 90

7x = 84

x = 12

m<MOP = 3x - 3 = 3(12) - 3 = 36 - 3 = 33

m<MOP = 33

Answer:

(2, 5), (-5, 6) and (-1, 1)

Step-by-step explanation:

Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, reflection, dilation and translation.

If a point A(x,y) is translated a units right and b units up, the new location is at A'(x + a, y + b).

From the image attached, the location of the vertices of the triangle is at (0,2), (-7, 3) and (-3, -2). If the triangle is under the translation (x, y) ⇒ (x + 2, y + 3), the new location of the vertices would be at (2, 5), (-5, 6) and (-1, 1)

Answer:

Yes it does.

Step-by-step explanation:

If you put this in point-slope-form you can substitute the ordered pair into the equation then solve.

Answer:

(-8, 12)

Step-by-step explanation:

9514 1404 393

Answer:

  J'(-8, 12)

Step-by-step explanation:

Reflection over the x-axis changes the sign of the y-coordinate.

  (x, y) ⇒ (x, -y) . . . . . reflection over x-axis

  J(-8, -12) ⇒ J'(-8, 12) . . . . reflection over x-axis

Answer:

Héctor salió de su casa con 12 euros.

Step-by-step explanation:

Cuando Héctor gastó en la entrada de cine una tercera parte del dinero con el que salió de casa, tenemos:

[tex] C = \frac{1}{3}x [/tex]    (1)

Cuando compró una bolsa de palomitas con la cuarta parte:

[tex] P = \frac{1}{4}x [/tex]    (2)                                  

Entonces al sobrarle 5 euros y relacionando las ecuaciones (1) y (2) con el monto inicial:

[tex] x - C - P = 5 [/tex]

[tex] x - \frac{1}{3}x - \frac{1}{4}x = 5 [/tex]

[tex] x = 12 [/tex]

Por lo tanto, Héctor salió de su casa con 12 euros.  

Espero que te sea de utilidad!