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joja [24]
3 years ago
9

How many degrees has aABC been rotated counterclockwise about the origin?

Mathematics
1 answer:
icang [17]3 years ago
5 0
180 degrees is the correct answer.
You might be interested in
15 people shared 65 1/2 acres of land. How much did each get?
beks73 [17]

You need to divide 65 1/2 by 15.

65 \dfrac{1}{2} \div 15 =

= \dfrac{131}{2} \div \dfrac{15}{1}

= \dfrac{131}{2} \times \dfrac{1}{15}

= \dfrac{131 \times 1}{2 \times 15}

= \dfrac{131}{30}

= 4 \dfrac{11}{30}

Each one got 4 \dfrac{11}{30} acres.


3 0
3 years ago
Read 2 more answers
Solve :<br><br> 5x - 7y = 12<br><br> 5y - 2x = - 7
Afina-wow [57]
There is one solution:

use elimination method

5x - 7y = 12
5y - 2x = -7    ---> change equation around

 5x - 7y = 12
-2x + 5y = -7

2 x ( 5x - 7y) = 2 x (12)    multiply both sides by 2
5 x (-2x +5y) = 5 x (-7)

this give you
 10x - 14y =24 
-10x+25y = -35                    add down
-----------------------------
        11y = - 11                    x is eliminated to find y value
           
            y = -1                         input to one of the original equations

5(-1)  - 2x = -7

-5  - 2x = -7
+5           +5                       add 5 to both sides
----------------------------
-2x = -2
    x = 1

your coordinates for when they intersect is at (1, -1)
one solution




3 0
3 years ago
Read 2 more answers
100 points!!! Please full out all of these ASAP!!! Please show work!!!
Alex

Answer:

look below

Step-by-step explanation:

y = 2 (x + 3)^2 - 2

Geometric figure:  parabola

Alternate forms:

y = 2 (x + 2) (x + 4)

y = 2 (x^2 + 6 x + 8)

-2 x^2 - 12 x + y - 16 = 0

Expanded form:

y = 2 x^2 + 12 x + 16

Roots:

x = -4

x = -2

<u>Properties as a real function: </u>

Domain - R (all real numbers)

Range - {y element R : y>=-2}

Partial derivatives:

d/dx(2 (x + 3)^2 - 2) = 4 (x + 3)

d/dy(2 (x + 3)^2 - 2) = 0

Implicit derivatives:

(dx(y))/(dy) = 1/(12 + 4 x)

(dy(x))/(dx) = 4 (3 + x)

Global minimum:

min{2 (x + 3)^2 - 2} = -2 at x = -3

3 0
3 years ago
Which answer describes the type of sequence? 16, 12, 32, 92, ... neither arithmetic nor geometric geometric arithmetic
Elanso [62]

Answer:

neither arithmetic nor geometric

Step-by-step explanation:

16, 12, 32, 92, ...

For arithmetic , there should be a common difference

16, 12, 32, 92, ...

Lets find the difference of two consecutive terms

12-16 = -4

32 - 12 = 20

92 - 32 = 60

Common difference is not same so it is not arithmetic

For Geometric , there should be a common ratio

16, 12, 32, 92, ...

Lets find the ratio of two consecutive terms

\frac{12}{16} = \frac{3}{4}

\frac{32}{16} = 2

\frac{92}{32} = \frac{23}{8}

Common ratio is not same , so it is not Geometric

So answer is neither arithmetic nor geometric




8 0
3 years ago
Can someone please answer these for me I’m very confused. I need the answers by 20 minutes
Kipish [7]

Answer:

12) y = 2x + 8

13) ( -4, 3)

14) y + 3 = 1(x + 2) ; y = x - 1

Step-by-step explanation:

12) ( -2, 4) and (1, 10)

m=(y2-y1)/(x2-x1)

m= (10-4)/(1+2)

m=6/3

m = 2

y - y1 = m(x - x1)

y - 4 = 2(x + 2)

y - 4 = 2x + 4

y = 2x + 8

13)

y - y1 = m(x - x1)

y - 3 = 2(x +4)

( -4, 3)

14) ( -2, -3) and (4, 3)

m=(y2-y1)/(x2-x1)

m=(3+3)/(4+2)

m=6/6

m=1

y - y1 = m(x - x1)

y + 3 = 1(x + 2)

y + 3 = x + 2

y = x - 1

7 0
3 years ago
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