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natta225 [31]
3 years ago
5

Assessment items What is the smallest angle of rotational symmetry that maps a regular pentagon onto itself?

Mathematics
2 answers:
Romashka-Z-Leto [24]3 years ago
5 0

A regular pentagon has 5 vertices.  360°/5 = 72°

Answer: 72°

ycow [4]3 years ago
5 0

Answer:

72°

Step-by-step explanation:

done the topic

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Help me out please with domain and range and the last question please (algebra 2) no links please I will report
baherus [9]

Answer:

domain = ( -infinity, infinity) = all real numbers

range = ( -1, infinity)

3 0
3 years ago
Can somebody help me with these 2 questions and show work ?? :)
777dan777 [17]

5. A. (4, -2)

6. C. (x, y) — (x, -y + 5)

Step-by-step explanation:

5. For the formula y = x, the x and y coordinates get swapped.

M = (-2, 4) — M’ = (4, -2)

6. If the coordinates get reflected across the x-axis, the y coordinates become negative.

(x, y) — (x, -y)

Now that the coordinates are reflected, you go 5 units up (+ 5) to get to the reflection of the coordinates if it was 5 units down before it reflected across the x-axis (- 5).

Ex. 1, 6 gets reflected across the x-axis and moved 5 units up. It’s reflection would be equivalent to (1, -1) because it moved 5 units down (1, 1) then reflected across the x-axis (1, -1).

(x, y - 5) reflected across the x-axis is equivalent to (x, -y + 5)

8 0
3 years ago
A single tree produces about 2.6 × 10² lb of oxygen each year. The Amazon rainforest has about 3.9 X 10^11 trees.
Ymorist [56]
(2.6\times10^2) \times (3.9\times10^{11}) = 1.014\times10^{14}

1.014\times10^{14} <---How much is produced by all the trees in a year. 
They want how much each day so divide by 365


\frac{1.014\times10^{14}}{365} = 2.77808\times10^{11}
2.77808\times10^{11} <---answer per day

6 0
3 years ago
Read 2 more answers
Please help thnx... <br> hi
Lena [83]

Answer:

-17/5

Step-by-step explanation:

Multiply ten to everything to get

6x-1= x+2-20

Simplify to 5x= -17

Solve to get x = -17/5

5 0
3 years ago
Joseph's last 13 paychecks were each $485 after taxes. How much did Joseph make after taxes during this time? I need THIS ANSWER
Scrat [10]

Answer:

6305

StepStep-by-stepStepStep-by-step-by-step-by-step explanation:

multply

7 0
2 years ago
Read 2 more answers
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