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3 years ago

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Triangle CAR has coordinates C (2,4), A (1,1), and R (3,0). A translation maps point C to C’ (3,2). Find the coordinates of A’ a

nd R’ under this translation.
A.) A’ (4,-2); R’ (2,-1)
B.) A’ (-2,2); R’ (2,-2)
C.) A’ (2,-1); R’ (4,-2)
D.) A’ (-1,0); R’ (-2,2)

1 answer:

Elden [556K]3 years ago

7 0

Answer:

A)

Step-by-step explanation:

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Solve the system for x and y -3x+8y=103 -5x-8y=-255

Romashka-Z-Leto [24]

9514 1404 393

Answer:

(x, y) = (19, 20)

Step-by-step explanation:

The coefficients of y are opposites, so we can add the two equations to eliminate y.

(-3x +8y) +(-5x -8y) = (103) +(-255)

-8x = -152

x = 19 . . . . . . . divide by -8

Substituting into the first equation, we have ...

-3(19) +8y = 103

8y = 160

y = 20

The solution is (x, y) = (19, 20).

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3 years ago

And I also need help in this one.

Dvinal [7]

Hey bestie I’m pretty sure it’s 1:3

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3 years ago

What is the inverse of the function y= x^2-12

aalyn [17]

Answer:

$y=\sqrt{x+12}$

Step-by-step explanation:

To find the inverse of a function, what I like to do is to switch the places of x and y, and then try to isolate y again like so:

$x=y^2-12$

$x+12=y^2$

$y=\sqrt{x+12}$

Hope this helps!

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3 years ago

What is the surface area of a cylinder that is 5 centimeters high and has a diameter of 1.5 centimeters?

olchik [2.2K]

The surface area of cylinder is 8.625 $\pi$ $cm^{2}$ , if the cylinder has 5 centimeters high and 1.5 cm of diameter.

Step-by-step explanation:

The given is,

Cylinder has a 5 centimeters height

Diameter of the cylinder is 1.5 centimeters

Step:1

Formula for the surface area of cylinder is,

$A=2\pi r h + 2\pi r^{2}$ ......................................(1)

Where,

h - Height of cylinder

r - Radius of cylinder

From the values of h and r,

$r=\frac{d}{2}$

= $\frac{1.5}{2}$

r = 0.75 cm

From the formula,

= ( 2 × $\pi$ × 0.75 × 5 ) + ( 2 × $\pi$ × $0.75^{2}$ )

= ( 7.5 $\pi$ ) + ( 1.125 $\pi$ )

A = 8.625 $\pi$ $cm^{2}$

Result:

The surface area of cylinder is 8.625 $\pi$ $cm^{2}$ , if the cylinder has 5 centimeters high and 1.5 cm of diameter.

3 0

4 years ago

Can someone please help ? :(

Anika [276]

Answer:

I'll list the answers as coordinates (just input the second number in each coordinate)

(-2, 11)

(0, 1)

(2, -9)

(4, -19)

Step-by-step explanation:

So you see how the x column is filled out? You plug in the numbers in each area and solve for y.

So we start off with -2. You take the x out and place -2 instead. Your equation should look like this:

y = -5 (-2) + 1

Next you multiply -5 and -2, giving you 10. Your equation would look like this now:

y = 10 + 1

Next you add 10 and 1 together, and you have your answer. Keep doing the same thing, but instead of -2 for x, use 0, 2, and 4.

Hope I helped! Have a nice day or night! ^-^

8 0

3 years ago

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