I'm making a great dodecahedron for geometry and I'm failing at putting it together! Any tips?!
I'm making a great dodecahedron for geometry and I'm failing - 1

Answers

Answer 1
Answer: dodecahedron\ grid\ in\ Annex
Answer 2
Answer: If you have any instructions, please look them over carefully. 
Take your time and DO NOT RUSH 
It might be very confusing at first but take it step by step and don't stress. 

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Mr anderson wrote (7 x 9) x 10 to the third power. what is the value of the expression

What is the probability of winning a raffle if 500 tickets are sold and you get 5

Answers

Then the probability is 5/100

Which mistake did Columbus make in the expedition that led him to the Americas? A.
He miscalculated the size of the earth and thought he had reached Asia.

B.
He thought the language of the people he met was Chinese and didn't realize he was in the Americas.

C.
He did not bring enough supplies, so he had to stop in the Americas instead of going all the way to Asia.

D.
He did not realize how bad storms could be and got so far off course that he reached the Americas instead of Asia.

Answers

The real answer is either A. Or from what I've been taught, Columbus thought that he could sail around the world to reach to India and did NOT know there were other lands. And he landed in America and he thought it was India.

What is 2n + -3 + 7 + 9

Answers

2n + -3 + 7 + 9
Answer : 2n+13

Answer:

2+ 13

Step-by-step explanation:

2n - 3 + 7 + 9

2n + 13

A swimming pool is 20 meters long and 12 meters wide the bottom of the pool is slanted so that the water depth is 1.3 at theshallow end and 4 meters deep at the deep end find the angle of depression of the bottom of the pool

Answers

Find the angle of depression of a swimming pool
=> has 20 meters long
=> has 12 meters wide
=> it is slanted at 1.3 meters depth
=> has 4 meters at the deep end.
Now, let’s start finding the tan:
=> tan x = oop/adj
=> tan x = 4 -1.3/20
=> 0.135
=> x = tan-1 0.135, this is equals to approximately 7.69 degrees.
Thus the angle of depression is approximately 7.69 degrees.







a 14 foot ladder is leaning against a building the ladder makes a 45 degree angle how far up the building does the ladder reach

Answers

When the 14 foot ladder is leaning against a building, which is vertical as shown in the attached graph, with 45 degree angle. If we use the sin equation for this problem we can find out the answer. 

Sin 45 = X / 14
X = 14 * sin45
X = 9.9 foot
Therefore ladder will reach to 9.9 foot height in the building

Which equation has the same soultions as X^2+6x-7=0

Answers

\n\n\huge\text{The answer is in the attachment !!!}
x^(2) +6x-7=0
Solve by formula : x_(1.2) = \frac{-b+ \sqrt{ x^(2-4ac) } }{2a}
a=1,b=6,c=-7

x_(1.2) = \frac{(-6)+ \sqrt{ 6^(2)-4(-7) } }{2}

x_(1.2)=  \frac{\sqrt{(-6)+ \sqrt{ 6^(2)+28 } } }{2}

x_(1.2) = ((-6)+ √(36+28 ) )/(2)

x_(1.2) = ((-6)+ √(64) )/(2)

x_(1.2) = ((-6)+8)/(2)

First solution:
x_(1) = ((-6)+8)/(2)

x_(1)= (\not 2)/(\not 2)

x_(1) =1
Second solution:
x_(2) = (-6-8)/(2)

x_(2) =-14:2

x_(2) =-7

The answer is: x_(1) =1x_(2) =-7