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Tpy6a [65]
3 years ago
13

Please help me!! Use the identities

Mathematics
1 answer:
jarptica [38.1K]3 years ago
7 0

Answer:

tan 5π/24.

Step-by-step explanation:

We use the identity:

tan (A - B) =   (tan A - tan B) / (1 + tan A tan B)

so the first expression simplifies to

tan ( π/3 -  π/8)

= tan 5π/24.

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Is -2.7 an irrational number
ololo11 [35]

Answer:

No

Step-by-step explanation:

An irrational number is a number that never ends or repeats. This decimal ends and it doesn't repeat.

6 0
3 years ago
Read 2 more answers
during a snow storm the temp drops from o degrees to -10 degrees in 2 hours. on average, bye how many degrees is the temperature
Amiraneli [1.4K]

Answer:

five degrees:)

Step-by-step explanation:

2 hours= -10

1 hour= half of ten

so you could say -5 or that it drops by five degrees every hour.

hope this helps!

5 0
3 years ago
Help pls thank you very much I picked one but I have no idea which one
Alecsey [184]

Answer:

42

Step-by-step explanation:

we could use inverse operation and multiply 7 by 6

6 0
3 years ago
Another math two step equation, please help thank you.
ValentinkaMS [17]

1.25*(t)+7=43.25


To solve the  2nd one, you must do 43.25 - 7 = 26.25

36.25 divided by 1.25 = 29

4 0
3 years ago
In isosceles triangle ABC, AC=BC=20, the measure of angle A=68, and CD is the altitude to side AB. What is CD to the nearest 10t
antiseptic1488 [7]

Answer:

Step-by-step explanation:

Comment

The way the diagram looks when it is drawn is that you are going to need the sine function to solve for the side opposite which is CD.

Formula

Sin(A) = Sin(68 = opposite / hypotenuse     Substitute values.

Solution

sin(68) = altitude (side opposite) / 20       multiply both sides by 20

20*sin(68) = 20* altitude / 20                     substitute for sin(68)

20* 0.9272 = altitude

altitude = 18.5

Answer: 18.5 to the nearest tenth

3 0
2 years ago
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