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2 years ago

Simplify the trigonometric expression sin(4x) +2 sin(2x) using Double-Angle Identities.

Mathematics

1 answer:

emmasim [6.3K]2 years ago

6 0

Answer:

8sin(x)cos³(x)

Step-by-step explanation:

sin(4x) +2 sin(2x) = 2sin(2x)*cos(2x) + 2sin(2x) = 2sin(2x)(cos2x + 1)=

= 2sin(2x)(cos²x - sin²x + cos²x + sin²x)=²2sin(2x)*(2cos²x)=

= 4*2sin(x)*cos(x)*cos²(x)= 8sin(x)cos³(x)

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Does (–3, 17) make the equation y = 6x + –1 true?

telo118 [61]

Answer:

ture

Step-by-step explanation:

Read the article and review the phases of mitosis.

Mitosis

6 0

2 years ago

Please help thanks so much

Umnica [9.8K]

The formula for the volume of a sphere is the following:

$V= \dfrac{4}{3} \pi r^3$

Plug in V=5000π and solve for the radius.

$5000 \pi = \dfrac{4}{3} \pi r^3$

Divide both sides by $\pi$

$5000 = \dfrac{4}{3} r^3$

Multiply both sides by 3/4 (to eliminate the 4/3 on the right side)
Also, flip the equation so we have the unknown variable on the left side (math etiquette).

$r^3=3750$

Take the cube root of both sides

$r \approx 15.5$

Now, calculate the surface area since now we know the radius.
The formula for the surface area is the following:

$S=4 \pi r^2$

Plug in r=15.5

$S \approx 3033$

The second choice is your answer.

5 0

3 years ago

The following are the ages of 13 history teachers in a school district. 24, 27, 29, 29, 35, 39, 43, 45, 46, 49, 51, 51, 56 Notic

salantis [7]

Answer:

Below in bold.

Step-by-step explanation:

Minimum 24

Lower quartile 29

Median 43

Upper quartile = (49 + 51) / 2 = 50

Maximum = 56

Interquartile range = 50-29 = 21.

5 0

1 year ago

Help me please algebra 2 PLEASSEEEEE!!!

liq [111]

Answer:

29.74 degrees.

Step-by-step explanation:

Tan(theta) = opposite / adjcent.

opposite = 8

adjacent = 14

Tan(theta) = 8/14

Tan(theta) = 0.5714

theta = tan^-1(0.5714)

theta = 29.74 degrees

5 0

3 years ago

In preparation for the holiday season, Big Bird Co. decided to increase production of stuffed Bert characters by 30%.

marin [14]

Answer:

the additional characters will the factory creating per day is 105 characters

Step-by-step explanation:

The computation of the additional characters will the factory creating per day is shown below

= Number of character produced × (1 + increased percentage)

= 350 × (1 + 0.30)

= 350 × 1.30

= 455 characters

Now the additional characters would be

= 455 - 350

= 105 characters

hence, the additional characters will the factory creating per day is 105 characters

3 0

2 years ago