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3 years ago

Use the special angles to evaluate: a) cosec 60° cot 30° + cos 45º cosec 45° 2

Mathematics

1 answer:

lbvjy [14]3 years ago

7 0

Answer:

the required answer is 4√2+1/2√2

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-3(x+2)=21 What is the answer and show the work please.

galina1969 [7]

Find use the distributive property and bring down the ending result (21)
-3x-6=21

Next, add 6 on both sides and you should get:
-3x = 27

The last step is, you divide -3 from 27 and you end up with 9. So, the total answer is x = 9

7 0

3 years ago

There are six girls and seven boys in the class a team of 10 players is to be selected from the class how many different combina

sweet [91]

Answer:

In 286 different ways 10 players can be selected.

Step-by-step explanation:

There are 6 girls and 7 boys in a class. So in total there are 6+7 = 13 number of students in the class.

A team of 10 players is to be selected from the class.

As there is no other conditions are given, we can pick any 10 students from 13 students.

The way we can select 10 players from 13 students is;

= (13 10)

= 13!/10!(13-10)!

= 13!/10! 3!

= (13 × 12 × 11 × 10!)/ 10! 3!

= ( 13 × 12 × 11)/6

= 286

5 0

3 years ago

HELP!!! 50 POINTS!!!! a transformation is a _____ to the _____ or _____ of a figure

Temka [501]

Answer:

a transformation is a rotation or reflection  to the position or co-ordinates of a figure

4 0

2 years ago

A new television set was recently purchased for the common room in a residence hall for $436.80 including tax the tax rate is 4%

garri49 [273]

Answer:

The price of the television before taxes is $420

Step-by-step explanation:

* Lets explain how to solve the problem

- The purchased price = cost price + taxes

- A new television set was recently purchased for the common room

in a residence hall for $436.80

- This price including tax

- The tax rate is 4%

- We need to find the price of the television before taxes

* Lets solve the problem

- Assume that the price of the television before tax is 100%

∵ The tax rate is 4%

∵ The price after tax = price before tax + tax

∵ The price before tax = 100%

∴ The price after tax = 100% + 4% = 104%

∵ 104% equivalent to $436.80

∴ 100 ⇒ ?

104 ⇒ 436.80

- By using cross multiplication

∴ ? = $\frac{(436.80)(100)}{104}=420$

∴ The price of the television before taxes is $420

6 0

3 years ago

Jhon can solve 6 math problems in 20 minutes while another student, Juaqine, can solve the same 6 math problems at a rate of 1 p

ASHA 777 [7]

Answer:

Jhon

Step-by-step explanation:

At the rate of 4 minutes per problem, it take Juaqine ...

(4 min/prob)×(6 prob) = 24 min

to solve the problems.

That is more time than it takes Jhon, so Jhon is faster.

3 0

3 years ago

Use the special angles to evaluate: a) cosec 60° cot 30° + cos 45º cosec 45° 2​

Use the special angles to evaluate: a) cosec 60° cot 30° + cos 45º cosec 45° 2