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3 years ago

Find the value of sin pi/4-x cos pi/4-y + cospi/4-x sin pi/4-y

Mathematics

1 answer:

defon3 years ago

3 0

Annaba jajsjdhs jakka dusk

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Find a common factor for 3y^3+2y^2 and 6y^4+4y^3

Anit [1.1K]

Answer:

$3y + 2$

Step-by-step explanation:

We want to find a common factor for

$3 {y}^{3} + 2 {y}^{2}$

and

$6 {y}^{4} + 4 {y}^{3}$

We factor each of them to get;

$3 {y}^{3} + 2 {y}^{2} = {y}^{2} (3y + 2)$

and

$6 {y}^{4} + 4 {y}^{3} = 2 {y}^{3} (3y + 2)$

We can observe now that;

The factor common to both expression is

$3y + 2$

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3 years ago

Please hurry i need help and im stuck!!! helpsosososos

sammy [17]

Answer:

Step-by-step explanation:

the x and y are being multiplied by 2 e.g. 1 × 2 is 2 and 2 × 2 is 4 so the constant is 2

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3 years ago

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Rewrite 3/4x - 5 = 7/12 so it does not have fractions .

katrin [286]

Answer:

Answer

Step-by-step explanation:

0.75x -5 = 0.583333333333...

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4 years ago

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In 2009, the national debt of a government was about $10.5 trillion. Using 308.0 million as the population for that year, abo

Katarina [22]

Answer:

34091 dollars per person

Step-by-step explanation:

In order to answer the question, you have to divide the amount of debt by the amount of population to obtain the amount of dollars per person.

The debt was $10.5 trillion. A trillion is a thousand billion (1000 multiplied by a billion which is $10^{9}$ in scientific notation)

1000= $10^{3}$

One trillion is $(10^{3})(10^{9})=10^{12}$

The debt is: $ 10.5 x $10^{12}$

The population is scientific notation is: 308.0 x $10^{6}$

Dividing the amount of debt by the amount of population:

$\frac{(10.5)(10^{12})}{(308.0)(10^{6})}=\frac{(10.5)(10^{12-6})}{308.0}=\frac{(10.5)(10^{6})}{308.0}$

Simplifying and expressing it in standard notation:

34090.9 dollars per person

Rounding to the nearest dollar:

34091 dollars per person.

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3 years ago

When solving equations with square roots it is important to do which of the following?

Mamont248 [21]

Answer:make sure the value of x is positive

-check the solution to ensure it is a rational number

Step-by-step explanation: .

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3 years ago

Find the value of sin pi/4-x cos pi/4-y + cospi/4-x sin pi/4-y​

Find the value of sin pi/4-x cos pi/4-y + cospi/4-x sin pi/4-y