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2 years ago

Which expression is equivalent to sin(2x) cosx

Mathematics

1 answer:

Vsevolod [243]2 years ago

7 0

Answer:

$2sin(x)cos^2(x)$

Step-by-step explanation:

To solve the problem, you must expand the trigonometric expression using the information given.

$sin(2x)cosx\\sin(2x)\\=2sin(x)\\=2sin(x)cos^2(x)$

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Find 50% of 36:<br> Find 25% of 36:<br> Find 75% of 36:

HACTEHA [7]

Answer:

18, 9, 27

Step-by-step explanation:

36 ÷ 2 = 18. Dividing by 2 is the same as multiplying by 50%.

36 ÷ 4 = 9. Dividing by 4 is the same as multiplying by 25%.

Since 25% • 3 = 75%, you can do 9 (from previous) • 3 to get 27.

5 0

3 years ago

What is the correct answer?

garik1379 [7]

Answer:

why is it upside down

Step-by-step explanation:

3 0

2 years ago

Evaluate each expression (image provided). A.) 5 B.) 7 C.) 4 D.) 6

Mkey [24]

<h3>The answer is option A.</h3>

Step-by-step explanation:

$log_{3}(243)$

Can be written as

$log_{3}( {3}^{5} )$

Which is the same as

$5 log_{3}(3)$

But

$log_{3}(3) = 1$

So we have

5(1) = 5

Hope this helps you

3 0

3 years ago

mrs. fuentes earns a salary of 60,000. ms. williams earns a salary of 51,000. mrs fuentes will receive a salary increase of 1,52

BlackZzzverrR [31]

Answer:

( $2,525 - $1,525)x = $9,000

Step-by-step explanation:

Data provided:

Salary earned by Mrs. Fuentes = $60,000

Salary earned by Ms. Williams = $51,000

Increase in salary of Mrs Fuentes = $1,525 per year

Increase in salary of Ms Williams = $2,525 per year

since, x is the number of years after which their salary will be equal

Now,

Total salary of Mrs. Fuentes after x years = $60,000 + $1,525x

and,

Total salary of Ms. Williams after x years = $51,000 + $2,525x

also,

when their salaries are equal

$60,000 + $1,525x = $51,000 + $2,525x

$2,525x - $1,525x = $60,000 - $51,000

( $2,525 - $1,525)x = $9,000

4 0

3 years ago

The sum of the consecutive numbers is 111. What is the smallest of the three numbers?

sammy [17]

Let
x = first consecutive number
x + 1 = second consecutive number
x + 2 = third consecutive number

The sum of these numbers are 111.
x + x + 1 + x + 2 = 111
3x = 111 - 1 - 2
3x = 108
x = 36

Therefore, the smallest number is 36 because other numbers are 37 and 38.

8 0

3 years ago

Read 2 more answers