What is 4+b=30

Mathematics

1 answer:

mariarad [96]3 years ago

7 0

B is 26
c is 15
X is 80
g is 30
x is -5
W is -4
r is 45
k is 12
f is 50

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A comet travels at an average speed of 273,000 km/h.

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Answer: 52,416,000 km

Step-by-step explanation:

If a comet travels 273,000 km/hr

1) Multiply 273,000 km by 24 hours to find how far the comet travels in one day

2) multiply the answer from 1 by 8 to determine how far it travels in 8 days

1) $\frac{273,000 km}{hr}$ * $\frac{24 hr}{1 day}$ = $\frac{6,552,000km}{day}$ (hours cancel out)

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3 years ago

The regular nonagon has rotational symmetry of which angle measures? Check all that apply.

11111nata11111 [884]

Consider the center of the nonagon. If we join the center to all the vertices, the central angle of 360°, is divided into 9 equal angles, each with a measure of:

360°/9=40°

So to a nonagon rotated 40°, clockwise or counterclockwise, is indistinguishable from the original one.

similarly if we rotate 80 ° c.wise or c.c.wise

in general, a nonagon has a rotational symmetry of 40°n,

where n∈{...-3, -2, -1, 0, 1, 2, 3}...

where 40°n, for n negative, means we are rotating clockwise.

Answer: any angle which is a multiple of 40°