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erastova [34]
3 years ago
10

I need help ASAP please with these 3 questions

Mathematics
1 answer:
DENIUS [597]3 years ago
6 0

Step-by-step explanation:

1. reflections preserve everything but coordinates, translations do the same. Rotations change the sides coordination, as in the short sides/long sides switch

2. We would need to do a 90 degree rotation to get to the green rectangle, but it would still end up in the other quadrants, with a translation the rectangle would go into the rightful . place.

3. You can do an anticlockwise 90* rotation then translate

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Help me plz very hard
notka56 [123]

Answer:

19

Step-by-step explanation:

6 0
3 years ago
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A circuit contains two capacitors rated at 0.02 microfrads and 0.05 microfrads connected in series the circuits Source voltage i
Neporo4naja [7]

Answer:

  about 0.0143 microfarads

Step-by-step explanation:

The effective capacitance of capacitors in series is the reciprocal of the sum of their reciprocals:

  1/(1/0.02 +1/0.05) = 1/(50+20) = 1/70 ≈ 0.0143 . . . microfarads

8 0
3 years ago
(05.08) Solve for x: 2 over quantity x minus 2 plus 7 over quantity x squared minus 4 equals 5 over x. (2 points) x = negative 4
Oxana [17]

Answer:

Step-by-step explanation:

The best way to do this is to use your LCM and eliminate the fractions.  To find the LCM you have to use all the denominators as a multiplier so the denominator in each term cancels out.  We will first factor the x-squared term to simplify and see what 2 factors are hidden there.

x^2-4 factors to (x + 2)(x - 2).  That means that our 3 denominators that make up our LCM are x(x+2)(x-2).  We will mulitply that in to each term in our rational equation, canceling out the denominators where applicable.

x(x+2)(x-2)[\frac{2}{(x-2)}+\frac{7}{(x-2)(x+2)}=\frac{5}{x}]

In the first term, the (x-2) will cancel leaving us with

x(x+2)[2] which simplifies to

x^2+2x[2]

In the second term, the (x+2)(x-2) cancels out leaving us with

x[7].

In the last term, the x cancels out leaving us with

(x+2)(x-2)[5] which simplifies to

x^2-4[5]

Now we will distribute through each cancellation:

2x²+4x;

7x;

5x²-20

Putting them all together we have

2x² + 4x + 7x = 5x² - 20

Combining like terms gives us a quadratic:

3x² - 11x - 20 = 0

Factor that however you find it easiest to factor quadratics and get that

x = 5 and x = -4/3

4 0
3 years ago
5/8 of the 64 musicians in a music contest there guitarist some of the guitarist play jazz solos and the rest play classical sol
Nimfa-mama [501]
So there are 64 * 5/8 guitarists.
That means that there are 40 guitarists.
Out of the 40, 3 out of 4 have classical solos.
So 40 * 3/4 is 30 classical solos.

3 0
3 years ago
What best explains whether a triangle with side links 5 cm 13 cm and 12 cm is a right triangle
Lostsunrise [7]

Step-by-step explanation:

Pythagoras Theorem

If the sum of the squares of the smaller two sides is equal to the square if the third side then it is a right triangle

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So, (5)^2 + (12)^2

is 25 + 144 = 169

Which is equal to (13)^2 which is also 169

The sides of the given triangle follows pythagoras theorem, therefore it is a right triangle

Hope it helps:)

4 0
3 years ago
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