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FromTheMoon [43]
3 years ago
5

Solve the following system of equations. Carefully show how you arrived at your answers.

Mathematics
1 answer:
____ [38]3 years ago
7 0

Answer:

um

Step-by-step explanation:

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Write the expression in standard form.<br><br> 6/(4-13i)
Paha777 [63]
6/(4 - 13i) = 6/(4 - 13i) * (4 + 13i)/(4 + 13i) = (24 + 78i)/(16 + 169) = 6/185 (4 + 13i)
7 0
3 years ago
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36 even : 12 odd in simplest form
vesna_86 [32]
3 even: 1 odd..................................
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Whats the Area? how do i find it? In these specific questions?
just olya [345]
The formula for finding the area of a square is:
{s}^{2}

The formula for finding the area of a triangle is:
\frac{1}{2} bh

So for the square the area would be:
{2x}^{2} \times  {2x}^{2}  =  {4x}^{2}

The area for the triangle would be:

\frac{1}{2}  {2c}^{3}  \times  4c =  {4c}^{2}
7 0
3 years ago
How to do this question
blsea [12.9K]
This is a 3 step problem. First you ignore the hole in the middle and find the volume anyways. Then you find the volume of the empty middle part. Then you can find the volume of the actual shape by subtracting them. 
area of a circle is= pi r^2
Volume with hole: 5*5*pi*8=200pi
Volume of hole= 1.5*1.5*pi*8= 18pi
Volume of doughnut = 200pi-18pi=182pi=571.769863u^3

r is the radius which is half of the diameter. 
pi is a big number but you can use 3.14
the formula for finding the volume is area of base times height. That's why i multiplied it by 8.]

I hope this helps
8 0
3 years ago
The endurance of both track athletes and gymnasts is recorded in terms of maximum volume of oxygen and is measured in milliliter
Olin [163]
The mean of the track athletes is given by
\frac{89.2+45.3+89.1+57.3+61.5+80.1+47.2}{7}=67.1

The mean of the gymnasts is given by
\frac{72.1+78.5+66.2+47.3+63.1+89.3+65.3}{7}=68.8

The difference in mean is given by
68.8-67.1=1.73 (rounded to one decimal place)

4 0
3 years ago
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