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2 years ago

If sintheta = cos theta then the value of acute angle is

Mathematics

1 answer:

Lelu [443]2 years ago

3 0

Answer:

45 degrees

Step-by-step explanation:

Here, we want to get the value of the acute angle

From the question, we have it that the sin of the acute angle equals its cosine

Recall;

cos A = sin (90-A)

Hence, if A is 45, then Cos A and Sine A will be the same

This means the value of theta which is the acute angle is 45 degrees

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2 years ago

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2 years ago

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2 years ago

A backyard pool has a concrete walkway around it that is 3 feet wide on all sides. The total area of the pool and the walkway is

Gnoma [55]

Answer:

<h2>29.4 length and 21.4 width.</h2>

Step-by-step explanation:

To fin the dimensions of the pool we need to use the total area of the pool plus the concrete walkway. Lets say that W is the width and L the length. We know that, the walkway has 3 ft wide, this means that the width and length are increased by 6ft (3ft on each side). So, the total area can be expressed like this: $A_{total} = (L+6)(W+6)$ .

In addition, we know that the total area is 970 and the length is 8 ft longer than the width ( $L=W+8$ ). So:

$A_{total} = (L+6)(W+6)\\970 = (W+8+6)(W+6)\\970=W^{2}+20W+84\\W^{2}+20W-886=0$

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Therefore, the dimensions of the pool are 29.4 length and 21.4 width.

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3 years ago

The metro theater has 20 rows of seats with 18 seats in each row. Tickets cost $5. The theaters income in dollars if all seats a

jarptica [38.1K]

In a Metro there are:
20 rows of seats
18 seats in a row
and $5 per ticket

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Therefore.
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Therefore, they have $1800 income.

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2 years ago

If sintheta = cos theta then the value of acute angle is ​

If sintheta = cos theta then the value of acute angle is