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marta [7]
3 years ago
10

Which shapes have rotational symmetry that occurs at 180°?

Mathematics
2 answers:
zmey [24]3 years ago
5 0
- Regular Octagon
- Regular Hexagon
- Square
lapo4ka [179]3 years ago
4 0

It should be regular octagon, regular hexagon, and square

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PLEASE HELP MEEEEEEEE AND THANKS
VashaNatasha [74]

Answer:

See below

Step-by-step explanation:

Use 5 for "x" or "a number" and see if the inequality is true.

a) =3 < 5+11 < 2 . . . . false. 16 is not less than 2

b) 7·5 ≥ 35 or 4·5 < -12 . . . . true. 35 = 35

c) -7 + 2·5  = 3 is at most 2 . . . . false. 3 > 2

d) 5·5 +3 = 28 is between 2 and 30 . . . . true.

3 0
3 years ago
Simplify the exponential expression. (−8) 2 =
sweet-ann [11.9K]

Answer:

-16

Step-by-step explanation:

6 0
3 years ago
This last one I need help on too
ExtremeBDS [4]

Answer:

x=\frac{3}{4}+i\frac{\sqrt{7}}{4},\:x=\frac{3}{4}-i\frac{\sqrt{7}}{4}

Step-by-step explanation:

simplify \frac{-3}{x-2} by putting the negative sign on the outside. \frac{2x}{x-1}-\frac{2x-5}{x^2-3x+2}=-\frac{3}{x-2}

find the LCM of the denominators. It is (x-1)(x-2). Multiply by the LCM:

\frac{2x}{x-1}\left(x-1\right)\left(x-2\right)-\frac{2x-5}{x^2-3x+2}\left(x-1\right)\left(x-2\right)=-\frac{3}{x-2}\left(x-1\right)\left(x-2\right)

Simplify:

2x\left(x-2\right)-\left(2x-5\right)=-3\left(x-1\right)

solve: x=\frac{3}{4}+i\frac{\sqrt{7}}{4},\:x=\frac{3}{4}-i\frac{\sqrt{7}}{4}

3 0
3 years ago
Five small apples have about 390 calories.
Dvinal [7]
78 calories per apple :)
7 0
3 years ago
Read 2 more answers
Which inequality represents all possible solutions of -12d2 -6?
qaws [65]

Answer:

f

Step-by-step explanation:

6 0
3 years ago
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