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3 years ago

An acute angle θ is in a right triangle with sin θ = seven eighths. What is the value of cot θ?

1 answer:

7 0

Sin = opposite/hypotenuse, so one side is 7 and the other is 8.
sqrt(64-49)=sqrt(15) which is the third side, and tangeant = opposite/adjacent, which is 7/sqrt(15). Cotangeant is 1/tangeant, so it would be sqrt(15)/7

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3 -9(2.7 - 1.55) + 3

MAVERICK [17]

Answer:

-7.35

Step-by-step explanation:

distribute -9 to 2.7 and 1.55

-9x2.7=-24.3

-9x1.55=-13.95

then subtract -13.95 from -24.3

-24.3-(13.95)=-10.35

Then add 3 to -10.35

Answer = -7.35

5 0

4 years ago

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What is the length of the hypotenuse of the triangle

kotegsom [21]

On all sides of a triangle it’s about 7 inches

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3 years ago

Which complex number has a distance of 17 from the origin on the complex plane?

Virty [35]

Answer:

None of the options are correct.

Step-by-step explanation:

Let the complex number is a + ib

Given distance from origin = 17 units

Now, by distance formula distance of a point from the origin =

$17 = \sqrt{(x)^{2} + (y)^{2} }$

1) Check for 2 + 15 i

here, $\sqrt{15^2 + 2^2} = \sqrt{225 + 4} = \sqrt{229}$ ≠ 17

2) Check for 17 + i

here, $\sqrt{17^2 + 1^2} = \sqrt{289 + 1} = \sqrt{290}$ ≠ 17

3) Check for 20 - 3 i

here, $\sqrt{20^2 + (-3)^2} = \sqrt{400 + 9} = \sqrt{409}$ ≠ 17

4) Check for 4 - i

here, $\sqrt{4^2 + (-1)^2} = \sqrt{16 + 1} = \sqrt{17}$ ≠ 17

Hence, none of the options are correct.

4 0

4 years ago

Which of the following numbers is irrational? Select all that apply.

MAXImum [283]

The square root of 15 and 3 are irrational because they are decimals and is not a whole number

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2 years ago

What is the degree of the monomial 3x^10

vaieri [72.5K]

That is a tenth degree equation.
The degree of an equation is the highest power it contains.

6 0

3 years ago

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