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My name is Ann [436]
4 years ago
14

Which of the lists of letters all have rotational symmetry?

Mathematics
1 answer:
Lunna [17]4 years ago
3 0

Answer:

So C doesn't have symmetry so that rules out a

b does though

J doesn't work so that rules out c

F doesn't work so that rules out d

B is answer

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the formula for the area o a triangle is 1/2 bh=A. Which of the following is not a possible first step to rearrange this formula
ella [17]

Answer:

Step-by-step explanation:

1/2 bh=A

to find the base of the triangle you can

divide by h

or multiply by 2

what are the other options given to you?

4 0
3 years ago
If triangle RST is within Quadrant 4 and cos R= √3/2, what is the value of cotR
Nesterboy [21]

Answer:

CotR = -√3

Step-by-step explanation:

In the 4th quadrant, sin is negative;

Since Cos R = √3/2,

Adjacent = √3

Hypotenuse = 2

Get the opposite;

opp^2 = 2^2 -(√3)^2

opp^2 = 4 - 3

opp^2 = 1

Opp = 1

Get sinR

Sin R = opp/hyp

SinR=  -1/2

CotR = cosR/sinR

CostR = (√3/2)/(-1/2)

CotR = √3/2* -2/1

CotR = -√3

6 0
3 years ago
Find the circumference in inches
Alborosie

Answer:

Step-by-step explanation:

2×radius with pi, 28*pi=28 pi or 87.92

3 0
3 years ago
Read 2 more answers
I'm stuck on algebra.
Rainbow [258]
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slope intercept form : m=(y-y1)/(x-x1)
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just pick any random points on a graph and plug the same points into all three forms.
7 0
4 years ago
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Towns X, Y, and Z are on the same straight road. Town Y is between Town X and Town Z. Town X is 57 miles from Town Z, and Town Y
Ray Of Light [21]
The distance between town X and Town Y is equal to the difference between the distance between Town X and Town Z and the distance from Town Y and Town Z. Mathematically
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Substituting,
                      d(X-Y) = 57 miles - 28 miles = 29 miles
Thus, the distance from Town X to Town Y is 29 miles. 
6 0
4 years ago
Read 2 more answers
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