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3 years ago

I did this problem and I was told I did it wrong how do I fix it??

Mathematics

1 answer:

Ksivusya [100]3 years ago

5 0

Answer:

(1/8)(cos(4x) -4cos(2x) +3)

Step-by-step explanation:

Your answer is correct as far as it goes. You now need to use a power-reducing identity on the cos(2x)² term in your answer. The appropriate one is ...

cos(x)² = (1/2)(1 +cos(2x))

In the context of this problem, using this formula gives you ...

sin(x)⁴ = (1/4)(1 -2cos(2x) +(1/2)(1 +cos(4x))

sin(x)⁴ = (1/8)(cos(4x) -4cos(2x) +3)

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What is the volume of the triangular prism in cubic centimeters?

Misha Larkins [42]

Answer:

b because it just is

Step-by-step explanation:

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2 years ago

There are two question please help.

natima [27]

7 , it’s x = 12 1/3, or in decimal form, 12.33. And at 8, it’s x = -6/11, or in decimal form, -0.54

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3 years ago

Write 53,278 in Expanded Form

noname [10]

53,278 can be written as:

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3 years ago

In the city of Manhattan, it takes about 13 Starbucks to serve every 100,000 people. As of 2019, Manhattan has

astraxan [27]

Answer:

9.207

Step-by-step explanation:

To get the amount of starbucks for the population we can do

$\frac{13 * 1629000}{100000}$

which gives us 211.77 total Starbucks in 23 miles.

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This gives us 9.207

7 0

3 years ago

Read 2 more answers

I need help with this, neither of my parents can help me and i want to understand.

olga2289 [7]

Answer:

See explanation

Step-by-step explanation:

1. To rewrite the expression

$(4^{\frac{2}{5}})^{\frac{1}{4}},$

use exponents property

$(a^m)^n=a^{m\cdot n}$

So,

$(4^{\frac{2}{5}})^{\frac{1}{4}}=4^{\frac{2}{5}\cdot \frac{1}{4}}=4^{\frac{2}{20}}=4^{\frac{1}{10}}$

2. Why $10^{\frac{1}{3}}=\sqrt[3]{10}?$

Raise both sides to 10 power:

$(10^{\frac{1}{3}})^3=10^{\frac{1}{3}\cdot 3}=10^1=10\\ \\(\sqrt[3]{10})^3=10$

So,

$(10^{\frac{1}{3}})^3=(\sqrt[3]{10} )^3$

3. Simplify $\dfrac{3^4}{9}$

Use the Quotient of Powers Property:

$\dfrac{a^m}{a^n}=a^{m-n}$

Then

$\dfrac{3^4}{9}=\dfrac{3^4}{3^2}=3^{4-2}=3^2$

4. Solve $4\sqrt{2}+5\sqrt{4}$

First, note that $\sqrt{4}=2,$ then

$4\sqrt{2}+5\sqrt{4}=4\sqrt{2}+5\cdot 2=4\sqrt{2}+10$

Number $4\sqrt{2}$ is irrational number, number 10 is rational number. The sum of irrational and rational numbers is irrational number.

5. The same as option 4.

3 0

2 years ago