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AlladinOne [14]
3 years ago
13

Please Help Me With This Geometry Question!! Thank You :)

Mathematics
1 answer:
sineoko [7]3 years ago
7 0

Answer:

b=1399.43

Step-by-step explanation:

We know our A side (length CH) is 3960

First we have to find our c side or length CE

Add 3960 and the altitude of 240 which equals 4200

then use the Pythagorean Theorem of A squared + B squared = C squared

if you plug that in its

3,960 squared + B squared = 4200 squared

If you calculate that its

15,681,600 + b squared = 17,640,000

then you want to isolate the variable

youll want to subtract 15, 681,600 from both sides of the = sign

this gives you b squared = 1,958,400

then youll have to find the square root of both

the square root of B squared is B

the square root of 1,958,400 is 1399.43

so B = 1399.43

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vovangra [49]
49 divided by 33 is 1.48484848 so your answer would be the last one (49/33)
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2 years ago
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Write the complex number in the form a + bi.
bonufazy [111]

Answer:

\frac{3}{2} + \frac{3\sqrt{3} }{2} i

Step-by-step explanation:

Using the exact value

cos60° = \frac{1}{2} and sin60° = \frac{\sqrt{3} }{2}, then

3(cos60° + isin60°)

= 3( \frac{1}{2} + \frac{\sqrt{3} }{2} i) ← distribute by 3

= \frac{3}{2} + \frac{3\sqrt{3} }{2} i ← in the form a + bi

7 0
3 years ago
a copy machine can copy a report in 30 min. when a second copy machine is used at the same time, the copying can be done in 18 m
Marta_Voda [28]

Answer:

Step-by-step explanation:

A copy machine can copy a report in 30 mins. When a second copy machine is used at the same time, the copying can be sone in 18 min. How long would it take the second copu machine to do the copying alone?

i have:

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4 0
2 years ago
2(x-3)-12 = -4<br> How do I solve this equations
deff fn [24]

Answer:

x= 7

Step-by-step explanation:

1st step: Multiply the factor (outside number) with the numbers and variable(s) in the box. This results in 2(x-3) = 2x-6

2nd Step: continue the rest of the equation since there are no more brackets left so 2x-6-12=-4

3rd Step: send -12 to the other side of the equation (side changes sign changes) so it will become 2x-6=-4+12    (You are actually supposed to make the variable alone on one side of the equation so that you would be able to calculate its value)

4th step: 2x-6=8 ---> send -6 to the other side as well which will then result in 2x=14

5th step: since 2 is being multiplied by x, when you send it to the other side (to make x alone) you will divide 14 by 2 ( sign of 2 changes from multiplication to division)

Final Step: x=7

3 0
3 years ago
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bazaltina [42]
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common denominator is 20

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3/20 is your answer

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hope this helps
5 0
2 years ago
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