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mezya [45]
3 years ago
9

If sec x = -2 and x is an angle in the second quadrant find tangent

Mathematics
1 answer:
faltersainse [42]3 years ago
6 0

Answer:

ndnvndvkfnvnvndnvnvncxncnnc

Step-by-step explanation:

ndkkvdjv jnfbfbfnbfnvnfncnncvnfnfc

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There are (4^9)5 ⋅ 4^0 books at the library. What is the total number of books at the library? 4^9 - 4^45 - 4^46 - 1
maria [59]
Exponent rules : (a^m)^n = a^(mn) and a^0 = 1

(4^9)^5 * 4^0 =
4^45 * 1 =
4^45 <==
7 0
3 years ago
Linda can bicycle 48 miles in the same time as it takes her to walk 12 miles. She can ride 9 mph faster than she can walk. How f
Marrrta [24]

Answer:

\frac{48}{r+9}=\frac{12}{r}

Step-by-step explanation:

Let r represent Linda's walking rate.                      

We have been given that Linda can ride 9 mph faster than she can walk, so Linda's bike riding rate would be t+9 miles per hour.

\text{Time}=\frac{\text{Distance}}{\text{Rate}}

We have been given that Linda can bicycle 48 miles in the same time as it takes her to walk 12 miles.

\text{Time while riding}=\frac{48}{r+9}

\text{Time taken while walking}=\frac{12}{r}

Since both times are equal, so we will get:

\frac{48}{r+9}=\frac{12}{r}

Therefore, the equation \frac{48}{r+9}=\frac{12}{r} can be used to solve the rates for given problem.

Cross multiply:

48r=12r+108

48r-12r=12r-12r+108

36r=108

\frac{36r}{36}=\frac{108}{36}

r=3

Therefore, Linda's walking at a rate of 3 miles per hour.

Linda's bike riding rate would be t+9\Rightarrow 3+9=12 miles per hour.

Therefore, Linda's riding the bike at a rate of 12 miles per hour.

7 0
3 years ago
What’s the answer to (5 x 10^4) x (6 x 10^9) please help me
san4es73 [151]

Answer: 300000000000000 Scientific Notation: 3 x 10^14

 

Step-by-step explanation:  (5 x 10^4) = 50000  (6 x 10^9) = 6000000000  

50000 x 6000000000 = 300000000000000

7 0
2 years ago
Please please help help please please ASAP
krek1111 [17]

Answer:

false

Step-by-step explanation:

The horizontal axis is the x axis.

I don't really know what your school wants in the blank but here's what I think it is:

The horizontal axis on the coordinate grid is the x axis.

Hope this helps! let me know if its right!

7 0
3 years ago
<img src="https://tex.z-dn.net/?f=5y%28%20y%20%2B%203%29%20-%202%28y%20-%202%29%20%3D%2020" id="TexFormula1" title="5y( y + 3) -
Alecsey [184]

Answer:

y =  \frac{ - 13 -  \sqrt{489} }{10}

4 0
3 years ago
Read 2 more answers
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