How many angles does a cube have?

Answers

Answer 1

Answer: A cube is a geometric three-dimensional solid object. It constitutes 6 square faces, sides and three meeting at each vertex. It is the only regular hexahedron. A cube has a fixed number of perpendicular angles. Typically, it has 8 perpendicular angles and each spigolo or corner has 3 angles. Since it has 8 perpendicular (⊥) angles and 3 angles in each corner, it makes up 24 angles.
All 8 ⊥ angles and 3 angles in each corner mean: 8*3=24.

Therefore, a cube has 24 right angles.

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What is the volume of the square pyramid with base edges 10 in. and height 9 in.?

Answers

The answer is 300.

Hope this helps!

what is the common ratio for the geometric sequence below, written as a faction? 768,480,300,187.5,...

Answers

To determine the common ratio of the geometric sequence, divide the second term with the first term. 480 divided by 768 equals 5/8. Further, the ratio of the third and second terms may be used to check the consistency of the common ratio. The ratio is also 5/8. Thus, the common ratio is 5/8.

The average reading score on a certain test is given by y=0.150x +255.34 where x is the number of years past 1970 . In what year would the average reading score be 259.24 if this model was accurate

Answers

Answer:

The average was 259.24 in 1996.

Step-by-step explanation:

In order to find the year that the average, "y", is 259.24 we need to apply this value on the given expression, as done below:

$259.24 = 0.15*x + 255.34\n0.15*x = 259.24 - 255.34\n0.15*x =3.9\nx = (3.9)/(0.15)\nx = 26$

The average was 259.24 after 26 years, therefore it was in 1996.

Angle help! I got confused on this one idk why. (Angle adding)

Answers

You have to add both the angles in the beginning I messed up on the first try. It can get confusing.

(6x - 15) + (x + 8) = 168
7x -7 = 168
7x = 168 + 7
7x/7 = 175/7
x = 25

FJG = 6x - 15
FJG = 6(25) - 15
FJG = 150 - 15
FJG = 135

What would the coordinate be 2x+8y=20
y=2

Answers

2x+8y=20;y=2
2x+8(2)=20
2x+16=20
-16 -16
-------------------
2x=4
x=2
The coordinate will be (2,2)! Hope that was helpful :)

Since y=2,

We have 2x+8(2)=20

Therefore, 2x=4

X=2

So the coordinate would be ( 2, 2 )

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