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deff fn [24]
3 years ago
7

What is the sign of the product (8)(−23)( −21)(−29)?

Mathematics
2 answers:
Natalka [10]3 years ago
4 0
Im 100% sure the answer is C.

kodGreya [7K]3 years ago
3 0
The answer would be D

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If a 12 sided regular polygon rotates about its center at which angle of rotation will the image of the polygon coinside with th
Amanda [17]

Answer: 30 degrees

This is the minimum amount of rotation.

Why this value? Well because 360/12 = 30

Consider a triangle with 3 sides. Specifically I mean an equilateral triangle. We can rotate it 120 degrees to have it line up with itself. Now notice that 360/3 = 120.

For a square, we can rotate it 90 degrees and we can say 360/4 = 90

So the general rule is that the minimum angle of rotation is 360/n, where n is the number of sides. This rule only works for regular polygons. Regular polygons have the same side length and the same angle measure (the side and angle measure won't necessarily be equal).

So going back to this 12 sided dodecagon, we have n = 12 and 360/n = 360/12 = 30 as the minimum angle of rotation. Each 30 degree rotation will have the polygon match up perfectly with its old image. The preimage and image will be identical.

6 0
2 years ago
This question worth 38 points to whoever answers it :)
Paraphin [41]
Volumeprism=volumecube times number of cubes
vprism/vcube=number of cubes

vprism=12*5*4.25=255
vcube=side^3=(1/4)^3=1/64

vprism/vcube=255/(1/64)=255*64=16320 cubes

4 0
2 years ago
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Write repeating decimal 0.027272727 ... as a fraction. <br><br> Reduce the fraction completely.
umka2103 [35]

Answer:

3/110

Step-by-step explanation:

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A painter uses 2.75 gallons of paint per hour. How many gallons of paint will the painter use in 3.5 hours?
anygoal [31]

Answer:

9.625 gallons will be used by the painters in 3.5 hours

Step-by-step explanation:

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X gallons = 3.5 hrs

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X = 9.625 gallons

9.625 gallons will be used by the painters in 3.5 hours

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Simplify this expression 5a/11a
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You could cross cancel the a and your final answer would be 5/11
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3 years ago
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