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3 years ago

12

the vertices of triangle DEF are D(-7,10) E (-5,5) and F (-8,1) if triangle DEF is translated to the right 12 units what are the

coordinates of the vertices of the image? name the triangle

1 answer:

Nady [450]3 years ago

6 0

Translation to the right by 12 units adds 12 to every x-coordinate. The new vertices are

... D'(5, 10), E'(7, 5), F'(4, 1)

It will be ∆D'E'F'.

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Which answer choice is this?<br> A 33<br><br> B 60<br><br> C 72<br><br> D 65

Artemon [7]

Answer:

x = 11

Step-by-step explanation:

• All interior angles in a triangle add up to 180.

• The square in the triangle represents 90°

90 + 45 + 1 + 4x = 180

136 + 4x = 180

4x = 180 - 136

4x = 44

x = 11

3 0

3 years ago

Please explain whether it's true or false? Thanks

svlad2 [7]

15. true 16. false in my coculations.

7 0

3 years ago

This hyperbola is centered at theorigin. Find its equation.Foci: (-2,0) and (2,0)Vertices: (-1,0) and (1,0)

beks73 [17]

SOLUTION

From the question, the center of the hyperbola is

$\begin{gathered} (h,k),\text{ which is } \\ (0,0) \end{gathered}$

a is the distance between the center to vertex, which is -1 or 1, and

c is the distance between the center to foci, which is -2 or 2.

b is given as

$\begin{gathered} b^2=c^2-a^2 \\ b^2=2^2-1^2 \\ b=\sqrt[]{3} \end{gathered}$

But equation of a hyperbola is given as

$\frac{(x-h)^2}{a^2}-\frac{(y-k)^2}{b^2}=1$

Substituting the values of a, b, h and k, we have

$\begin{gathered} \frac{(x-0)^2}{1^2}-\frac{(y-0)^2}{\sqrt[]{3}^2}=1 \\ \frac{x^2}{1}-\frac{y^2}{3}=1 \end{gathered}$

Hence the answer is

$\frac{x^2}{1}-\frac{y^2}{3}=1$

5 0

1 year ago

How do you do this?????

Setler79 [48]

The lowest common multiple of 7 and 5 is 35, so you divide 365 by 35, the whole number is your answer,
the answer is 10

4 0

3 years ago

If x-y=5 then how does y=-2x-4

mixer [17]

Based on my knowledge, you’d set both equations equal to y, and then set both sides equal to each other then solve.

y=-5+x
y=-2x-4
-5+x=-2x-4
then solve from there

(this could be completely wrong, so don’t only go by my opinion)

3 0

3 years ago