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zimovet [89]
3 years ago
14

Which letter has at least one line of symmetry?

Mathematics
2 answers:
Lorico [155]3 years ago
8 0
D.

The letter D has a line of symmetry that runs horizontally down the middle. If you were to fold the letter D in half, you would see that the upper and lower half of the letter look the exact same.
mario62 [17]3 years ago
7 0

Answer:

I just took the test and got 100% I am here to save you a ton of time :)

1. B: 1

2. A: D

3. B: 120*

4. B: rotation

5. C: reduction, 1/2

6. C: 200 MILLIMETERS

7. B: rotation

8. D: should be the last image with black triangle in quadrant 1 and solid lined triangle on the y-axis in quadrant 3 :)

9. A: opposite orientation; reflection

10. A: rotation; 180* about (1,4)

All of these answers are 100% Good luck with the rest of the year

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Find all of the polar coordinates of point P if p=(1,-pi/6)
Mama L [17]

Answer:

The all polar coordinates of point P are  (1 , -pi/6 + 2nn) and (-1, -pi/6+(2n+1)n).

Step-by-step explanation:

The polar coordinates can be written as (r,Ф)= (r,Ф+2nn) or (r,Ф) =(-r,Ф+(2n+1)n) and n is any integer value.

We are given p=(1,-pi/6)

P(r,Ф), then r = 1 and Ф = -pi/6

The polar coordinates will be

P(r,Ф)= (r,Ф+2nn)  = (1 , -pi/6 + 2nn) and n is any positive integer and the value of r is positive.

P(r,Ф) =(-r,Ф+(2n+1)n) = (-1, -pi/6+(2n+1)n) and n is any positive integer and the value of r is negative.

The all polar coordinates of point P are  (1 , -pi/6 + 2nn) and (-1, -pi/6+(2n+1)n)

6 0
3 years ago
Read 2 more answers
Write the equation of a line through the points (−7,14) and (−21,28) in slope-intercept form
Harlamova29_29 [7]

Answer: y= -x + 7

Solution:

Step 1 : find the slope using the equation using the pair of coordinates that are given i.e A (−7,14)  B (−21,28) ( name them A and B respectively so they can be easily named as x1, y1 and x2,y2 respectively)

m = y2-y1/x2-x1

m = 28-14 / -21 -( -7)

m =  14 / -14

m = -1

Step 2 : Find the y intercept using the line of equation (use and one of the given coordinates either A or B)

Using A ( -7, 14)

y= mx+ b

14 = (-1)(-7) + b

14= 7 + b

14-7 = b

7 =b

So,

y=mx+b

Insert m and b

y= -x + 7





8 0
3 years ago
Find f(5) and f(-1) for the equation:
valkas [14]

Answer:

C. -8 and 4

Step-by-step explanation:

Step 1: Plug in f(5)

f(5) = -2(5) + 2

f(5) = -10 + 2

f(5) = -8

Step 2: Plug in f(-1)

f(-1) = -2(-1) + 2

f(-1) = 2 + 2

f(-1) = 4

8 0
3 years ago
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Zero is<br> a divisor.<br> O always<br> O sometimes<br> O never
lys-0071 [83]

Answer: the answer is never

Step-by-step explanation:

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3 years ago
What is the minimum value of the quadratic function?
vesna_86 [32]

Answer:

  -5

Step-by-step explanation:

The y-coordinate of the bottom of the curve is -5. This is the minimum value of the function. There are no function values lower than this.

4 0
3 years ago
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