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3 years ago

What is the relationship between the sine and cosine of complementary angles?

1 answer:

8 0

Yes, there is a "relationship" regarding the tangent of the two acute angles (A and B) in a right triangle.

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What is the dependency ratio?

shutvik [7]

Answer:The dependency ratio is an age-population ratio of those typically not in the labor force and those typically in the labor force. It is used to measure the pressure on the productive population

Step-by-step explanation:

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3 years ago

The function f(x)=3x^3+x^2+2x rises as x grows very large. A. True B. False

Alja [10]

True I’m pretty sure

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3 years ago

Tammy bought 20 pounds of flour for $11. How many pounds of flour did she get per dollar?

frozen [14]

Answer:

1.82 pounds per dollar

Step-by-step explanation:

20/11= 1.82

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3 years ago

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Use the given conditions to write an equation for the line in point-slope form and general form,

Sveta_85 [38]

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Shanghai iTunes here he is just keep up until now I am present invention of modern history of

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3 years ago

The difference of two trinomials is x2 − 10x + 2. If one of the trinomials is 3x2 − 11x − 4, then which expression could be the

12345 [234]

Answer:

$4x^2-21x-2$

Step-by-step explanation:

Given that:

Difference of two trinomials is $x^2 - 10x + 2$

One of the two trinomials is $3x^2 - 11x - 4$

To find:

The other trinomial = ?

Four options are:

$2x2 - x - 2 \\2x2 + x + 6 \\4x2 + 21x + 6\\ 4x2 - 21x - 2$

Solution:

Let the two trinomials be A and B.

Given A - B = $x^2 - 10x + 2$

B = $3x^2 - 11x - 4$

We have to find the other trinomial A.

A - B = $x^2 - 10x + 2$

A - ( $3x^2 - 11x - 4$ ) = $x^2 - 10x + 2$

$\Rightarrow$ A = $x^2 - 10x + 2$ + ( $3x^2 - 11x - 4$ )

$\Rightarrow$ A = $4x^2-21x-2$

So, the correct answer is $4x^2-21x-2$ .

3 0

3 years ago