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Lesechka [4]
3 years ago
14

In triangle ABC, a = 4, b = 6, and cos C = -1/4. What is the length of side c?

Mathematics
1 answer:
makkiz [27]3 years ago
8 0

Answer:

i believe it's a

Step-by-step explanation:

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Select the correct answer from each drop-down menu. A self-service car wash charges $4 for the initial 5 minutes plus an additio
arlik [135]

Answer: For m\geq15

\\\Rightarrow\ y=4+0.75(m-5)\geq4+0.75(15-5)\\\Rightarrow\ y\geq4+0.75(10)\\\Rightarrow\ y\geq4+7.5\\\Rightarrow\ y\geq11.5

Nick does not has enough money to follow this recommendation.

Step-by-step explanation:

Given: A self-service car wash charges $4 for the initial 5 minutes plus an additional $0.75 for each minute after that.

Let y be the cost for car wash for m minutes then

y=4+0.75(m-5) such that at m= 5 , y=4 which is the cost for car wash (dollars) for first 5 minutes.

Also, A car enthusiast magazine recommends spending at least 15 minutes to properly wash a car.

For m\geq15

\\\Rightarrow\ y=4+0.75(m-5)\geq4+0.75(15-5)\\\Rightarrow\ y\geq4+0.75(10)\\\Rightarrow\ y\geq4+7.5\\\Rightarrow\ y\geq11.5

But Nick has $10 which is less than $11.5, so he does not has enough money to follow this recommendation.

7 0
3 years ago
Read 2 more answers
The population of a city can be modeled by the expression p(1.06)^t where t represents the number of years since 1990 and p repr
Anastaziya [24]

Answer:

D

Step-by-step explanation:

.06 =6%

7 0
2 years ago
Here yall go enjoy have a good day
kozerog [31]

Answer

Step-by-step explanation:

hope you have an good day aswell ;D

4 0
2 years ago
OUCH MY BRAIN IS HURTING AFTER TRYING TO SOLVE THIS QUESTION
maria [59]
300° CCW is the same as 60° CW. N will show up where H is now.

The 3rd selection is appropriate.
4 0
3 years ago
How to solve y=3(0)^2-6(0)-5
Ilya [14]
Y = - 5 

I hope this helps. :)
8 0
3 years ago
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