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n200080 [17]
3 years ago
11

Consider a problem of rotating A digital figure by 30 degrees anti clockwise. Which of the following matrix would do the transfo

rmation?
Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
7 0

Answer:

Step-by-step explanation:

That's a nice question.

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Tyrone is buying candy by the pound to stuff into a piñata. Her purchased 14 pounds of candy for $12. How much is the cost of on
Deffense [45]
I believe the answer is


26

sorry if wrong


if not an answer choice then 168.
4 0
3 years ago
X+y+z =4
cestrela7 [59]
<span><span> <span>Akar akar persamaan kuadrat 2x² - 3x -1 = 0 adalah x1 dan x2. Persamaan kuadrat baru yang akar akarnya satu lebih kecil dari dua kali akar akar persamaan kuadrat di atas adalah ........</span></span><span><span><span>A.x² - x - 4 = 0</span><span>B.x² + 5x - 4 = 0</span><span>C.x² - x + 4 = 0</span></span><span><span>D.x² + x + 4 = 0</span><span>E.x² - 5x - 4 = 0</span></span></span><span>Jawaban : A
Penyelesaian : 
Akar-akar persamaan lama :  x1 dan x2
                                             
Akar-akar persamaan baru :  xA dan xB
                                             xA = 2x1 - 1
                                             xB = 2x2 - 1
                                             xA + xB  = (2x1 - 1) + (2x2 - 1)
                                                           = 2 (x1 + x2) - 2
                                                           = 2 () - 2
                                                           = 3 - 2
                                              xA + xB = 1
    
                                              xA . xB = (2x1 - 1) (2x2 - 1)
                                                          = 4 x1.x2 - 2(x1 + x2) + 1
                                                          = 4.(-) - 2() + 1
                                                          = -2 - 3 + 1
                                              xA . xB = -4
    
Jadi persamaan kuadrat baru : x² - (xA + xB)x + xA . xB = 0
                                              x² - x - 4 = 0

</span></span>
4 0
3 years ago
Evaluate 10x^2y^-2 for x = –1 and y = –2a) 10(2)^0b) 2 1/2c) 40d) 5/8
timurjin [86]
10x^2y^-2 = 10 x (-1)^2 x (-2)^-2 = 10 x 1 x 1/4 = 10/4 = 2 1/2
6 0
3 years ago
49x^2 -_x + 16<br><br> Can someone help with the missing number
mihalych1998 [28]

Step-by-step explanation:

I'm guessing this is competing the perfect square

so it's 56

5 0
3 years ago
Read 2 more answers
PLease i need help i dont understand and i need an explantaion
zalisa [80]

Answer:

c) 56 m²

Step-by-step explanation:

Area of the figure =  area of triangle + area of rectangle

Rectangle:

length = 8 m

Width = 5 m

Area = length * width

       = 8 *5

       = 40 m²

Triangle:

base (b)= 4 m

height (h) =  8 m

Area=\frac{1}{2}bh\\\\ =\frac{1}{2}*4*8\\

= 2* 8

=  16 m²

Area of the figure = 40 + 16

                                = 56 m²

4 0
3 years ago
Read 2 more answers
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