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2 years ago

Prove that 1-tan32°tan13°-tan32°-tan13°=0

Mathematics

1 answer:

Step2247 [10]2 years ago

3 0

Answer:

Step-by-step explanation:

45=32+13

tan 45=tan(32+13)

$1=\frac{tan~ 32+tan~ 13}{1-tan ~32 ~tan~ 13} \\cross~multiply \\1-tan 32 ~tan~13=tan ~32+tan~13\\$

or 1-tan 32 tan 13-tan 32-tan 13=0

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3x + (-2 + 4x)<br> X = 5

KATRIN_1 [288]

3(5)+(-2+4(5))
15+(-2+20)
15+(18)
15+18
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3 years ago

Calculate the area of the quarter circle estimate using 3.14 for pi

mars1129 [50]

The area of the quarter circle with radius 3ft is $7.065 ft^2$

Area of a quarter circle is given by the formula:

$Area = \frac{\pi r^2}{4}$

Where r represents the radius of the circle

In the quarter circle shown, the radius, r = 3 feet

π = 3.14

Substitute π = 3.14 and r = 3 into the formula $Area = \frac{\pi r^2}{4}$

$Area = \frac{3.14 \times 3^2}{4}\\\\Area = \frac{3.14 \times 9}{4}\\\\Area = \frac{28.26}{4}\\\\Area = 7.065 ft^2$

The area of the quarter circle with radius 3ft is $7.065 ft^2$

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2 years ago

What is the general equation of a tilted ellipses not centered at the origin?

ICE Princess25 [194]

The general equation of an ellipse in which case it is not centered at the origin and it is tilted is; (x-h)²/a² + (y-k)²/b² = 1.

<h3>What is the general equation of a tilted ellipses not centered at the origin?</h3>

It follows from the task content that the plane shape in discuss is an ellipse which is described by the characteristics that it is tilted and not centered at the origin.

It follows from convention that the general equation of such an ellipse is;

(x-h)²/a² + (y-k)²/b² = 1.

In which case, such an ellipse has center given as point; (h, k).

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2 years ago

13. One kilogram is equal to 1,000 grams.

Ilya [14]

Answer:

I'm pretty sure it's 0.257!

Step-by-step explanation:

Sorry if I got it wrong I'm trying my best hope you have a great day!!

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3 years ago

Read 2 more answers

A certain third-degree polynomial function has zeros at-5, -1, and 2. Which could NOT be a factor of the expression that defines

Kitty [74]

Answer:

I am pretty sure it is the second option

Step-by-step explanation:

Hope this helps

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2 years ago

Prove that 1-tan32°tan13°-tan32°-tan13°=0​

Prove that 1-tan32°tan13°-tan32°-tan13°=0