3 years ago

Write a rule for the translation.

1 answer:

8 0

Answer: b
Explanation: to get to point c (pink) to the other point c (blue) you need to go back 2 spaces which will makes it negative and go up one space which is positive.

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Help its iready ill give brainiest

madam [21]

Answer:

7(1/2)

Step-by-step explanation:

7 0

4 years ago

Write the standard form of the equation of the circle with center (7,1) that also contains the point (−1,−5).

Karo-lina-s [1.5K]

Answer:

$(x-7)^2+(y-1)^2=100$

Step-by-step explanation:

<u>1) Find the radius</u>

We can do this by using the distance equation with the centre (7,1) and the given point (-1,-5):

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$ where the two points are $(x_1,y_1)$ and $(x_2,y_2)$

Plug in the points (7,1) and (-1,-5)

$d=\sqrt{(-1-7)^2+(-5-1)^2}\\d=\sqrt{(-8)^2+(-6)^2}\\d=\sqrt{64+36}\\d=\sqrt{100}\\d=10$

Therefore, the radius of the circle is 10 units.

<u>2) Plug the data into the equation of a circle</u>

Equation of a circle (when not centred at the origin):

$(x-h)^2+(y-k)^2=r^2$ where the centre is $(h,k)$ and r is the radius

Plug in the centre (7,1) as (h,k)

$(x-7)^2+(y-1)^2=r^2$

Plug in the radius 10

$(x-7)^2+(y-1)^2=10^2\\(x-7)^2+(y-1)^2=100$

I hope this helps!

4 0

3 years ago

Help please Simplify: 4y + (2y – 4) A. -6y + 4 B. 6y – 4 C. -6y – 4 D. 6y + 4

alina1380 [7]

b is the answer hope this help

7 0

3 years ago

Lindsay Skyler and Valerie are sisters Lindsey is 8 years older than Skyler Skyler is 5 years older than Valley who is 16 years

BigorU [14]

Answer:

valley is 16

skyler is 21

lindsay is 29

hope this helps!

7 0

3 years ago

Engage and Persevere The measure of ∠A in △ABC is twice the measure of ∠B , and the measure of ∠C is 20° less than the measure o

Brilliant_brown [7]

Answer:

A = 100

B = 50

C = 30

Step-by-step explanation:

You can make this equation to solve:

2x+x+x-20=180

4x-20=180

+20 +20

4x=200

divide both sides by 4

200/4 = 50

x=50, B = x = 50

2x = 100 = A

x-20 = 30 = C

6 0

2 years ago