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vovangra [49]
3 years ago
15

How to find length of sides for right triangle knowing angles?

Mathematics
1 answer:
kifflom [539]3 years ago
3 0
U can use the cosine or sine rules depending on the question/triangle
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How to show numbers are related to each other
ira [324]
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4 0
3 years ago
P over 2 minus 5 when p = 14
bezimeni [28]

Answer: (14/2)-5=2

Step-by-step explanation:

8 0
3 years ago
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You choose a marble at random from a bag containing 8 brown marbles 6 yellow marbles and one purple marble. You replace the marb
Andrej [43]
Pick 1: 6 yellow out of 15 total marbles = 6/15 = 2/5
Pick 2: 6 yellow out of 15 total marbles = 6/15 = 2/5

Pick 1 AND Pick 2
   2/5     x       2/5    = 4/25
5 0
2 years ago
What are all of the real roots of the following polynomial? f(x) x^4-24x^2-25
Greeley [361]

<u>Answer:</u>

x = ±5

<u>Step-by-step explanation:</u>

We are given the following polynomial function and we are to find all of its real roots:

x^4-24x^2-25

Let y=x^2 so we can now write it as:

y^2-24y-25

Factorizing it to get:

(y^2+y)+(-25y-25)

y\left(y+1\right)-25\left(y+1\right)

\left ( y + 1 \right ) \left ( y - 2 5 \right)

Substitute back y=x^2 to get:

\left ( x^2 + 1 \right ) \left ( x^2 - 25 \right )

\left ( x^2 + 1 \right ) \left ( x + 5 \right ) \left ( x - 5 \right )

The quadratic factor has only complex roots. Therefore, the real roots are x = ±5.

3 0
3 years ago
Read 2 more answers
What value of a makes the equation true?<br><br><br><br> 1.7a+0.3a=4/5<br> btw 4/5 is a fraction
andreyandreev [35.5K]
1.7a + 0.3a = 0.8;
(1.7 + 0.3)a = 0.8;
2 x a = 0.8;
a = 0.8 ÷2;
a = 0.4;
5 0
3 years ago
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