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kari74 [83]
2 years ago
10

In addition to writing new facts for February 29, the twins also need to add another image in the middle of their flip-book anim

ation. The animation sequence is of Dorothy's house from the Wizard of Oz as it is being carried over the rainbow by a tornado. The house in the February 28 drawing has been rotated to create the house in the March 1 drawing. Carlos believes that he can get from the February 28 drawing to the March 1 drawing by reflecting the February 28 drawing, and then reflecting it again.
A. What convinces you that the February 29 image is a reflection of the February 28 image about the given line of reflection?

B. What convinces you that the March 1 image is a reflection of the February 29 image about the given line of reflection?

C. What convinces you that the two reflections together complete a rotation between the February 28 and March 1 images?

Mathematics
1 answer:
ale4655 [162]2 years ago
5 0

Answer:

Its C. What convinces you that the two reflections together complete a rotation between the February 28 and March 1 images?

Step-by-step explanation:

In addition to writing new facts for February 29,  you gotta do what you learned and add the houses

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Can anyone please help me in this
Alik [6]

These problems are called systems of equations. Basically you have two linear equations and you need to find the values for x and y. In other words, all these equation are lines and our answer will be the exact point that the pair of lines intersect. For example, if we get x=1 and y=2 the lines will intersect at point (1,2). Now that you have some background knowledge here comes the tricks and tactics kid.

We know that we can solve one variable equation easily. For example...

x+1=2

x=1 obviously

Cause we have two variables x and y it is not possible to find a solution. For example, in the equation x+y=10, x=1 when y=9 and x=2 when y=8. There is not correct answer.

So what can we do? We have to make a two variable equation into a one variable equation.

There are two ways to do this: substitution and elimination. I will create a sample problem and then solve it using both methods.

x+y=2

2y-y=1

3)  

-3x-5y=-7 -----> -12x-20y=-28

-4x-3y=-2 ------> -12x-9y=-6

 -12x-20y=-28

-(-12x-9y=-6)

---------------------

-11y=-22

y=2

-3x-5(2)=-7

-3x=3

x=-1

4) 8x+4y=12 ---> 24x+12y=36

7x+3y=10 ---> 28x+12y=40

 28x+12y=40

-(24x+12y=36)

---------------------

4x=4

x=1

8(1)+4y=12

4y=4

y=1

5) 4x+3y=-7

-2x-5y=7 ----> -4x-10y=14

    4x+3y=-7

+(-4x-10y=14)

-------------------

-7y=7

y=-1

4x+3(-1)=-7

4x=-4

x=-1

6) 8x-3y=-9 ---> 32x-12y=-36

5x+4y=12 ---> 15x+12y=36

 32x-12y=-36

+(15x+12y=36)

--------------------

47x=0

x=0

8(0)-3y=-9

-3y=-9

y=3

7)-3x+5y=-2

2x-2y=1 ---> x-y=1/2 ----> x=y+1/2

-3(y+1/2)+5y=-2

-3y-1.5+5y=-2

2y=-0.5

y=0.25

2x-2(0.25)=1

2x=1.5

x=0.75

4 0
3 years ago
Please help will give brainliest brainliest
Ad libitum [116K]

Answer:

D. A\subset \mathbb{R}\times\mathbb{R}.

Step-by-step explanation:

Consider the set

A=\left\{(2,3),\ (5,1),\ (-3,-2),\ (0,3)\right\}

This set consists of four ordered pairs.

The first numbers in these pairs are 2,\ 5,\ -3,\ 0. These numbers are integer numbers (not natural, because -3 is negative).

The second numbers in these pairs are 3,\ 1,\ -2,\ 3. These numbers are integer numbers too (not natural, because -2 is negative).

Options contain only natural and real sets, so, the first and the second numbers are real numbers and

A\subset \mathbb{R}\times\mathbb{R}.

8 0
3 years ago
Read 2 more answers
Write logbx + logby - logbz as a single logarithm.
IrinaK [193]
Logbx+logby-logbz
=logb(x*y)/z if b is the base of log.
There are two properties that you can apply to get the correct answer.
logb(x*y)=logbx+logby if b is the base of log.
logb(x/y)=logbx-logby if b is the base of log, so the correct answer for logbx+logby-logbz=logb(x*y)/z. Hope it help!
3 0
2 years ago
A two-digit numner is four times the sum and three times the product of its digits. Find the number.​
krok68 [10]

Answer:

24 i thik?

Step-by-step explanation:

6 0
2 years ago
Dont answer this question if you dont know the answer
3241004551 [841]

\huge\boxed{♧ \: \mathfrak{ \underline{Answer} \: ♧}}

here's the solution,

  • \pi = 180

  • \dfrac{\pi}{3}  =  \dfrac{180}{3}

  • \dfrac{\pi}{3}  = 60

=》

f( \theta) = \cos( \theta)   + 2 \cos( \frac{ \theta}{2} )

=》

f(60) =  \cos(60)  + 2 \cos( \frac{60}{2} )

=》

f(60) =  \dfrac{1}{2}  + 2 \cos(30)

=》

f(60) =  \dfrac{1}{2}  +  (2 \times \frac{ \sqrt{3} }{2})

=》

f(60) =  \dfrac{1}{2}  +  \sqrt{3}

=》

f(60) =  \dfrac{1 + 2 \sqrt{3} }{2}

hence, correct option is C.

6 0
2 years ago
Read 2 more answers
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