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3 years ago

What information do you need to find the area of a triangle using trigonometry?

1 answer:

8 0

Formula of the area of triangle
A=(1/2)a*b*sin(C)
a, b - sides
C- an angle between sides a and b.
Probably, this question means that you need to know sin of the angle.

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Which number is equal to the expression 7 x 104 + 3 x 103 + 0 x 102 + 8 x 101 + 5 ?

suter [353]

Answer:

Step-by-step explanation:

Scientific notation is the way that scientists easily handle very large numbers or very small numbers. For example, instead of writing 0.0000000056, we write 5.6 x 10-9. So, how does this work?

We can think of 5.6 x 10-9 as the product of two numbers: 5.6 (the digit term) and 10-9 (the exponential term).

Here are some examples of scientific notation

6 0

3 years ago

What pair of factors of -45 has a<br> sum of 4?

damaskus [11]

Answer:

9 and -5

Step-by-step explanation:

9*-5=-45

9+-5=4

5 0

2 years ago

Read 2 more answers

Can someone help me with this question <br><br> 5 gallons 3 quarts + 4 gallons 2 quarts=?

Gekata [30.6K]

Step-by-step explanation:

5 gallons 3 quarts +4 gallons 2 quarts

5.3

4.2

=9.5 gallons

5 0

3 years ago

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elimination was used to solve a system of equations. one of the intermediate steps led to the equation 2x= 8. which of the follo

konstantin123 [22]

9514 1404 393

Answer:

Step-by-step explanation:

The step shown indicates that y was eliminated from the equations. For choices A, B, D, this is done by adding the equations together (the y-coefficients are opposites). The result of doing that gives x-terms of 4x, 0x, and 0x, respectively. These x-terms do not match the one given: 2x.

For choice C, the y-term is eliminated by subtracting twice the second equation from the first. Doing that gives ...

(4x +2y) -2(x +y) = (14) -2(3)

4x +2y -2x -2y = 14 -6 . . . . eliminate parentheses

2x = 8 . . . . . . . . . . . . . . collect terms

8 0

3 years ago

Use the picture, please help.

Marat540 [252]

C.

I used the rise/run method you rise 13 and run -11 which means on the x axis you move 11 spaces to the left and on the y axis you move 13 spaces up.

4 0

2 years ago

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