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klasskru [66]
2 years ago
9

Find the value of trigonometric ratio​

Mathematics
1 answer:
Rufina [12.5K]2 years ago
8 0

Answer:

20/21

Step-by-step explanation:

tanC = opposite/adjacent = 20/21

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Solve.
Serhud [2]

Answer:

Step-by-step explanation:

12.9 + 10.2x = 35.1

10.2x = 35.1 - 12.9

10.2x = 22.2

x = 22.2/10.2

x= 222/102 = 111/51

x= 2\dfrac{9}{51}

6 0
2 years ago
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Find the sum and product of the roots. 2x^2 + 6x - 8 = 0
netineya [11]
Suppose you can factorize:

ax^2+bx+c=a(x-r_1)(x-r_2)

Then by expanding the right side, you have

ax^2+bx+c=a(x^2-(r_1+r_2)x+r_1r_2)=ax^2-a(r_1+r_2)x+ar_1r_2

which means in this case, you have to have

\begin{cases}6=-2(r_1+r_2)\\-8=2r_1r_2\end{cases}\implies\begin{cases}r_1+r_2=-3\\r_1r_2=-4\end{cases}
3 0
3 years ago
Solve 6 - 2x = 3<br><br> How do I do this?
RoseWind [281]

Answer:

x = 3/2 or 1.5

Step-by-step explanation:

6 - 2x = 3

(You have to subtract 6 on both sides so it can cancel out)

6 - 6 - 2x = 3 - 6

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(Now, you divide -2 on both sides to isolate the x)

-2/(-2)x = -3/(-2)

x = 3/2

5 0
3 years ago
I really need on these cause I really don't know this and I need to understand. please help me please.​
lawyer [7]

Answer:

-6m^4-m^3

Step-by-step explanation:

First you move the parenthesis then you group the like terms after you group the like terms you get m^4-7m^4-m^3 which is adding the similar elements and after you add similar elements you get  -6m^4-m^3. Srry if this makes no sense

8 0
3 years ago
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sergejj [24]
The answer to the question

5 0
2 years ago
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