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ollegr [7]
3 years ago
12

The triangles are congruent by the SSS congruence theorem. Triangles B C D and W X Y are shown. Triangle B C D is shifted up and

to the right and then rotates about point D to form triangle W X Y. Which transformation(s) can map TriangleBCD onto TriangleWXY?
Mathematics
2 answers:
ELEN [110]3 years ago
8 0

Answer:

C. Translation, then rotation

Step-by-step explanation:

May I have brainliest please? :)

nlexa [21]3 years ago
3 0

Answer:

C

Step-by-step explanation:

just trust me I didn't finish the test but I'm 99% sure this is correct

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How many solutions does the following equattion have?<br> -3d +6=10
uysha [10]

Answer:

1 solution.

Step-by-step explanation:

-3d + 6 = 10

⇒ -3d = 10-6

⇒ -3d = 4

⇒ d =  \frac{-4}{3}

so, d =  \frac{-4}{3}

7 0
4 years ago
-6 is less than or equal to x, and -1 is greater than x
Olenka [21]

Answer:

Negative

Step-by-step explanation:less than

5 0
4 years ago
Read 2 more answers
Solve the following system of equations.<br> - 9x - 5y=1<br> - 6x - 7y=8
Lunna [17]
Let's solve by eliminating
x
. Since 18 is the lowest common multiple , let's multiply the first equation by 3 and the second by -2.

Add the two equations.

Divide by -11 to isolate
y

y= -2

Substitute
y
=
−
2
into either of the 2 equations, I'll just use the second one.
x = -1
5 0
3 years ago
The volume of a sphere is decreasing at a constant rate of 9988 cubic centimeters per minute. At the instant when the volume of
Inessa05 [86]

Using implicit differentiation, it is found that the rate of change of the surface area of the sphere -2201.293 square centimeters per second.

<h3>What is the volume of a sphere?</h3>
  • The volume of a sphere, of radius r, is given by:

V = \frac{4\pi r^3}{3}

<h3>What is the surface area of a sphere?</h3>
  • The surface area of a sphere, of radius r, is given by:

S = 4\pi r^2

<h3>What is the rate of change?</h3>

Applying <em>implicit differentiation</em>, the rate of change of both the volume and the surface area can be found, as follows:

\frac{dV}{dt} = 4\pi r^2\frac{dr}{dt}

\frac{dS}{dt} = 8\pi r\frac{dr}{dt}

Volume of 3131 cubic centimeters, hence:

V = \frac{4\pi r^3}{3}

\frac{4\pi r^3}{3} = 3131

4\pi r^3 = 3(3131)

r = \sqrt[3]{\frac{3(3131)}{4\pi}}

r = 9.0754

The volume of a sphere is decreasing at a constant rate of 9988 cubic centimeters per minute, hence:

\frac{dV}{dt} = 4\pi r^2\frac{dr}{dt}

-9988 = 4\pi (9.0754)^2\frac{dr}{dt}

\frac{dr}{dt} = -\frac{9988}{4\pi (9.0754)^2}

\frac{dr}{dt} = -9.651

Then, the <u>rate of change of the surface area</u> of the sphere is given by:

\frac{dS}{dt} = 8\pi (9.0754)(-9.651) = -2201.293

The rate of change of the surface area of the sphere -2201.293 square centimeters per second.

To learn more about implicit differentiation, you can take a look at brainly.com/question/25608353

4 0
3 years ago
Find (3a2 - 2a + 4) - (a2 - 3a + 7) .
melisa1 [442]
<span>(3a^2 - 2a + 4) - (a^2 - 3a + 7) = (distribute the negative sign)
3a^2 - 2a +4 - a^2 + 3a - 7 = (add like terms)
2a^2 + a - 3
So, the answer is A!

</span>
6 0
3 years ago
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