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Scilla [17]
3 years ago
15

How to write proofs in geometry

Mathematics
1 answer:
sp2606 [1]3 years ago
5 0
Make a game plan. ...
Make up numbers for segments and angles. ...
Look for congruent triangles (and keep CPCTC in mind). ...
Try to find isosceles triangles. ...
Look for parallel lines. ...
Look for radii and draw more radii. ...
Use all the givens.
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what is the equation of the line that is perpendicular to 5x+6y=16 and passes through the point (-5,7)?
Lapatulllka [165]

Answer:

y=6/5x+13

Step-by-step explanation:

6y=-5x+16

Divide by 6

y=-5/6x + 8/3

Slope: 6/5 (opposite reciprocal)

7=-5(6/5)+b

7=-6+b

b=13

6 0
3 years ago
As an estimation we are told £3 is €4. Convert £14.20 to euros.
antoniya [11.8K]
Answer = €18.93

€4 x £14.20= 56.80
56.80 / 3 = €18.93

Hope it helped you :)
8 0
2 years ago
Find the sample variance and standard deviation.<br> 4, 57, 10, 51, 37, 22, 31, 30, 26, 29
loris [4]

Answer:

Step-by-step explanation:

25 324 796657

5 0
3 years ago
You have a bag with 4 pairs of socks. There are 2 red pairs and 2 black pairs. You pull a sock from the bag and put it back 3 ti
eduard
Total Number of socks = 4 pairs= 8 socks
Number of red socks = 4
Number of black socks = 4

Probability of pulling a red sock from the bag the first time =  \frac{4}{8}= \frac{1}{2}

Since the sock is placed back in the bag before pulling a sock again, the number of socks remains the same.

So,

Probability of pulling a red sock from the bag the second time =  \frac{4}{8}= \frac{1}{2}

And

Probability of pulling a red sock from the bag the third time =  \frac{4}{8}= \frac{1}{2}

Therefore, the probability of pulling a red sock 3 times from the bag = \frac{1}{2}*  \frac{1}{2}*  \frac{1}{2}= \frac{1}{8}
7 0
3 years ago
Select the property that allows the left member of the equation to be changed to the right member.
Olenka [21]
Commutative - addition.

You're switching a and b to get the same answer. It works with Multiplication too, as you can tell!
8 0
3 years ago
Read 2 more answers
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