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maksim [4K]
3 years ago
6

Math help with triangles please help (15 points)

Mathematics
1 answer:
babunello [35]3 years ago
5 0
Cpctc because corresponding parts of congruent triangles are congruent. <span />
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Find the quotient of 5+4i/6+8i , and express it in the simplest form
Sergio [31]
Remember: i² = -1

\frac{5+4i}{6+8i}=  \frac{(5+4i)(6-8i)}{(6+8i)(6-8i)}= \frac{30-40i+24i-32i^2}{36-64i^2}=  \frac{30-16i-32(-1)}{36-64(-1)}= \\ \\ = \frac{30-16i+32}{36+64}= \frac{62-16i}{100}=0.62-0.16i

Hope this helps
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4 years ago
The density of iron is 7.8 g/cm3 . An iron beam has a volume of 10,504 cm³.
myrzilka [38]
The formula to find density is Mass/Volume

We have
Density = 7.8 \frac{g}{cm^{3}}
Volume = 10504  cm^{3}

Hence
Mass = 7.8×10504 = 81931.2 gram
6 0
3 years ago
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Answer:

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5 0
3 years ago
A dollar bill is worth _____ pennies. When written in decimal format, each penny can be written as ______ of a dollar. 100:10 10
erik [133]
Hey there! :D

A dollar bill is worth 100 pennies. 

$1.00-> .01*100 <=== same thing

When written in decimal format, each penny can be written as 100:1, because there are 100 pennies in a dollar. One penny would just be one out of 100. 

I hope this helps!
~kaikers
5 0
3 years ago
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Regina recently inherited an oil painting that was purchased by her great-grandfather for $100 in 1938. In 2013 she took the pai
muminat
The future worth of a certain item or money deposited at a certain percentage is obtained by the equation,

   F = P x (1 + i)^n

F is the future worth, P is present worth, i is the percentage, and n is the number of years.

   n = 2013 - 1938
   n = 75

Substituting the known values,

    300,000 = 100 x (1 + i)^75

The value of i from the equation is 0.1126.

The answer to this item is 11.26%. 
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3 years ago
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