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Feliz [49]
3 years ago
11

Solve the equation, justify each step with an algebraic property -3x=15

Mathematics
1 answer:
Hunter-Best [27]3 years ago
8 0
Divide each side by -3..
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Use the unit circle to find sec (-90)
andreyandreev [35.5K]

Using the unit circle, you can visualise the secant as follows:

  1. Draw the vertical line passing trough (1,0)
  2. Extend the radius until it meets this line at point P
  3. The length of OP is the secant of your angle.

Since -90 means that the radius points downwards, it means that the radius is vertical as well, and thus it never meets the vertical line through (1,0).

Thus, the secant is not defined at -90.

In fact, if we switch back to the function notation, we can confirm this claim, since we have

\sec(x)=\dfrac{1}{\cos(x)}\implies \sec(-90)=\dfrac{1}{\cos(-90)}=\dfrac{1}{0}

which is undefined.

4 0
3 years ago
Factor 24m-12p+7224m−12p+7224 - 12p + 72 to identify the equivalent expressions.
lord [1]

Answer:

C, A

Step-by-step explanation:

If you would like me to explain, I could but this would be difficult. Trust me.

7 0
3 years ago
Read 2 more answers
NEED HELP ON THIS PLEASE! Oregon Trail: Percents.
harina [27]

1845-1846

118->148

148-118 = 30 = change

percent

30/118 ≈ 25.4%

1846-1847

148->139

148-139 = 9 = change

percent

9/148 ≈ 6%

1847-1848

139->151

151-139 = 12 = change

percent

12/139 ≈ 8.6%


Hope this helped :)

5 0
2 years ago
The slide at the playground has a height of 6 feet.The base of the slide measured on the ground is 8 feet.what is the length of
Mariulka [41]

Answer: 10ft

Step-by-step explanation:

Using the Pythagorean theorem (a² + b² = c²) you would end up with an equation like this: 36 + 64 = 100. You would then square root 100 and the answer would be 10 ft

7 0
3 years ago
(y* - 5)(yx + 5)<br> please help
Nina [5.8K]

Answer:

Simplified the expression.

y2x+5y−5yx−25  

I think this is what were were asking, if not please explain better.

Hope this helps :D

plz like & brainly

7 0
3 years ago
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