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3 years ago

I’m triangle abc sin A = 2

Mathematics

1 answer:

soldi70 [24.7K]3 years ago

7 0

Short answer C

Comment
How to explain this is not simple. There are all kinds of ways of dealing with it.

One fact is that Sin(A) = Cos (90 - A). But you may not have had that yet.

An easier way is just to use side notation.

The sin of an acute angle in a right triangle is the Opposite over the hypotenuse.
In this case, Sin(A) = o/h = BC / AB which you were told was 24/25

Now look at the Cosine of B
It's definition is Adjacent / hypotenuse
Cos(B) = a/h = 24/25

Answer
Sin(A) = Cos(B) or
C <<<< answer

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Two flat, circular plates are placed on a circular tabletop. The diameter of each plate is equal to the radius of the table top.

erastovalidia [21]

A=pR^2-2pr^2, since R=15 and r=7.5

A=225p-112.5p

A=112.5p

A≈353.25 ft^2

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3 years ago

What is (4a²)³÷8a²? can you please answer in normal number form (not like 3²)

AleksandrR [38]

Answer:

$8a^4$

Step-by-step explanation:

Hello! $(4a^2)^3=4\cdot4\cdot4\cdot a^2\cdot a^2\cdot a^2=64a^6$ because if you multiply numbers with exponents you add the exponents.

Now we've got $\frac{64a^6}{8a^2}=8a^4$ .

Sadly it has to be in exponential form. You can substitute $a$ into the equation if you know a.

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3 years ago

Last year, the average monthly revenue at stamford times newspaper was 35,700. So far this year, the average has been 29% more t

monitta

Answer:

$46,053

Step-by-step explanation:

Convert 29% into a decimal, which is 0.29.
Multiply $35,700 by 29% as a decimal (0.29), which is 10,353.
Since the keyword is more, we want to add $35,700 and 10,353 (29% of $35,700). The answer will be $46,053.

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3 years ago

What is the solution to the compound inequality in interval notation?

ollegr [7]

Answer:

Step-by-step explanation:

Because of the word "or", this is a disjunction, or a union of all the solutions to the inequality as they present on a number line.

For the first inequality:

4(x + 1) > -4 we distribute through the parenthesis to get

4x + 4 > -4 and subtract 4 from both sides to get

4x > -8 and then divide both sides by 4 to get

x > -2. That will be graphed on a number line with an open hole over the -2 and the arrow will go to the right where the numbers are bigger than -2. This arrow continues into positive infinity.

For the other inequality:

2x - 4 ≤ -10 we add 4 to both sides to get

2x ≤ -6 and then divide by 2 to get

x ≤ -3. That is a closed hole over -3 and the arrow goes to negative infinity (to the left). Since one arrow goes off to the right forever, and the other arrow goes off to the left forever, and the arrows do not intersect at any point, the interval notation answer is

(-∞, -3] or (-2, ∞). The parenthesis mean that the number following it is not included (you can't include infinity, either negative or positive, because it's not actually a number) and the brackets mean that the number following it IS included. The hole is closed over the -3 so -3 is included in the solution, where the hole over the -2 is open and is not included.

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1 year ago

A contracting company rents a generator for 6 hours and a heavy duty saw for 6 hours total cost of $48 for another job the compa

Wewaii [24]

Answer:

the hourly rates are $8 and $10 respectively

Step-by-step explanation:

Given that

The generator rents for 6 hours and the total cost is $48

And, for another job The generator rents for 4 hours and the total cost is $40

We need to find out the hourly rates

For the first one

= $48 ÷ 6 hours

= $8

For the second one

= $40 ÷ 4 hours

= $10

Hence, the hourly rates are $8 and $10 respectively

6 0

3 years ago