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Tasya [4]
3 years ago
9

Which one of the following statements is true? *

Mathematics
2 answers:
Jobisdone [24]3 years ago
5 0
A is the answer I think
Orlov [11]3 years ago
4 0

Answer:

tan 45° = 1 = true

cos 30° = 1/2 = false

sin 45° = 1/3 = false

sin 90° = 0 = false

Step-by-step explanation:

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Francesca is growing 1/2 inch each year. How many years will it take her to grow 6 inches?
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Answer:

3 years.

6÷ .5= 3

edit:

brain fart! sorry!

12 years.

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4 0
3 years ago
Read 2 more answers
Need help plz and thnks
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Answer: y=13

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Darnelle works for a real estate agent. She receives a basic wage of $250 per week plus commission on sales. The rate of commiss
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Step-by-step explanation:

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8 0
3 years ago
A large mixing tank initially contains 1000 gallons of water in which 40 pounds of salt have been dissolved. Another brine solut
sergey [27]

Answer:

If A(t) represents the amount of salt in the tank at time t, the correct differential equation for A is is dA/dt =  15 - 0.005A

Option C) dA/dt =  15 - 0.005A is the correction Answer

Step-by-step explanation:

Given the data in the question;

If A(t) represents the amount of salt in the tank at time t, the correct differential equation for A is?

dA/dt = rate in - rate out

first we determine the rate in and rate out;

rate in = 3pound/gallon × 5gallons/min = 15 pound/min

rate out = A pounds/1000gallons × 5gallons/min  = 5Ag/1000pounds/min

= 0.005A pounds/min

so we substitute

dA/dt = rate in - rate out

dA/dt =  15 - 0.005A

Therefore, If A(t) represents the amount of salt in the tank at time t, the correct differential equation for A is is dA/dt =  15 - 0.005A

Option C) dA/dt =  15 - 0.005A is the correction Answer

8 0
3 years ago
What is x + 9≤10 as an inequalite ?
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X is less then or equal to 1<u /><em /><u />
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3 years ago
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