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2 years ago

If AABC is reflected across the y-axis, what are the coordinates of A'?

Mathematics

1 answer:

mrs_skeptik [129]2 years ago

4 0

Answer: (-2, -5)

Step-by-step explanation:

When reflecting over the y axis, (x, y) becomes (-x, y).

So A(2, -5) turns into (-2, -5).

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Х = 2y — 4<br> (3х – бу = -12

horsena [70]

Answer:

Step-by-step explanation:

Substitute the value of x to the 2nd equation

3(2y-4)-6y=-12

6y-12-6y=-12

0=0

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3 years ago

<img src="https://tex.z-dn.net/?f=R%20%3D%20%5Csqrt%7B%20%5Cfrac%7Bax%20-%20P%7D%7BQ%20%2B%20bx%7D%20%7D%20" id="TexFormula1" ti

Phantasy [73]

Step-by-step explanation:

$r = \sqrt{ \frac{ax - p}{q + bx} } \\ {r}^{2} = \frac{ax - p}{q + bx}$

r² (q + bx) = ax - p

qr² + bxr² = ax - p

qr² + p = ax - bxr²

qr² + p = x (a - br²)

$x = \frac{q {r}^{2} + p}{a - b {r}^{2} }$

7 0

3 years ago

Read 2 more answers

Write the standard equation of a circle with center (-2,5) and the point (4,13) on the circle

n200080 [17]

since the point (4,13) is on the circle, then the distance from the center to it, is the radius of the circle.

$\bf ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ (\stackrel{x_1}{-2}~,~\stackrel{y_1}{5})\qquad (\stackrel{x_2}{4}~,~\stackrel{y_2}{13})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ \stackrel{radius}{r}=\sqrt{[4-(-2)]^2+[13-5]^2}\implies r=\sqrt{(4+2)^2+(13-5)^2} \\\\\\ r=\sqrt{36+64}\implies r=\sqrt{100}\implies r=10 \\\\[-0.35em] ~\dotfill$

$\bf \textit{equation of a circle}\\\\ (x- h)^2+(y- k)^2= r^2 \qquad center~~(\stackrel{-2}{ h},\stackrel{5}{ k})\qquad \qquad radius=\stackrel{10}{ r}\\[2em] [x-(-2)]^2+[y-5]^2=10^2\implies (x+2)^2+(y-5)^2=100$

6 0

3 years ago

HURRY BRAINLIEST AND 40 POINTS!!!

poizon [28]

Answer:

Option 3

Step-by-step explanation:

3 × (-4 - n/-2) 《 5

5 is also included, so should be less than equal to 5

8 0

3 years ago

A gallon of gasoline costs $2.96. Your car has a 25-gallon gas tank and can travel 28.8 miles on each gallon of gasoline. You ta

Andreas93 [3]

Answer:

$70.56

Step-by-step explanation:

Lets convert the mixed number (trip length) to decimal.

We know 3/5 (by long division) is 0.6, so 705 3/5th = 705.60 miles

Now, let's come to the problem:

1 gallon = 28.8 miles (mileage)

$2.96 = 28.8 miles

To find cost per mile, we divide:

$\frac{2.96}{28.8}=0.10$

That means, it costs $0.10 per mile

Since we want to travel 705.60 miles, we multiply to find the cost:

$0.10 per mile * 705.60 miles = $70.56

6 0

4 years ago