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jeyben [28]
3 years ago
5

Find the difference

Mathematics
1 answer:
Makovka662 [10]3 years ago
7 0

Answer:

-5n^2 +2n +5

Step-by-step explanation:

( -4n^2 +2n) - (n^2 -5)

Distribute the minus sign

( -4n^2 +2n) - n^2 +5

Combine like terms

-5n^2 +2n +5

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17. What are the three angle measures in the triangle shown below?
lianna [129]

Answer:

Option (1)

Step-by-step explanation:

By using triangle sum theorem in the given triangle,

(5x - 7)° + (11x - 4)° + (3x + 1)° = 180°

(5x + 11x + 3x) - (7 + 4 - 1) = 180

19x - 10 = 180

19x = 190

x = 10

Therefore, (3x + 1)° = 30 + 1

                                = 30°

(11x - 4)° = 110 - 4

              = 106°

(5x - 7)° = 43°

Therefore, Option (1) will be the correct option.

4 0
3 years ago
Look at the figure and answer
andreyandreev [35.5K]

Answer:

\cos x=\dfrac{8}{f}

Step-by-step explanation:

Given that,

\tan x=\dfrac{e}{8}\\\\\sin x=\dfrac{e}{f}

We need to find the value of cos x.

We know that,

\tan\theta=\dfrac{\sin\theta}{\cos\theta}

Using the above relation,

\dfrac{e}{8}=\dfrac{\dfrac{e}{f}}{\cos x}\\\\\cos x=\dfrac{\dfrac{e}{f}}{\dfrac{e}{8}}\\\\=\dfrac{e}{f}\times \dfrac{8}{e}\\\\=\dfrac{8}{f}

So, the value of cos x is equal to \dfrac{8}{f}.

7 0
3 years ago
Simplify:<br> 9x/2 - 4x - 3 = ?
icang [17]

Answer: Um, I think is \frac{x}{2-3}.

Step-by-step explanation:

4 0
3 years ago
In the given equation, k is a constant. If the equation has no solution, what is the value of k?
MrRissso [65]

Answer:

0

Step-by-step explanation:

7 0
3 years ago
Questions and answers are below plz help ASAP (As Soon As Possible) Reward for helping is to be brainlyest and 15 pts
Alenkasestr [34]
So what are you trying to answer ?
6 0
3 years ago
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