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s2008m [1.1K]
4 years ago
14

Can anyone pls help me in this pls I WILL MARK U AS BRAINLIEST PLS HELP ME !!!!!

Mathematics
1 answer:
Dovator [93]4 years ago
5 0

Answer:

The distance is about 3, but the exact answer would be 2.8284271

You need to use the Pythagorean Theorem for this because it finds you an exact answer, as well as test your other math skills.

Step-by-step explanation:

Pythagorean Theorem:

a2+b2=c2

The distance between A and B we will call C. Line C is the easiest way to get from A to B or B to A.  The line A is at the top of we will also call line A, and same goes for the B line.  What you have to do:

A=2

B=2

a2=4

b2=4

4+4=c2

8=c2

Find the square root of 8, which is 2.8284271. It is about 3. (It looks like 2 tho)

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Calculate the value of A to one decimal place
WINSTONCH [101]

Okay, you will need to use the law of cosines for this problem.

The Law of Cosines states (in this case): a^2 = b^2 + c^2 - 2 * b * c * cos A, where "a" is the side opposite angle A (7 inches), and b and c are the other two sides.

Plug the numbers in and you get: 7^2 = 5^2 + 9^2 - 2 * 5 * 9 * cos A, or:

49 = 25 + 81 - 90 * cos A.

Subtract (25 + 81) from both sides to get:

-57 = -90 * cos A.

Divide by -90 on both sides:

cos A = 19/30

To find A, you do the inverse trigonometric function to get:

cos^-1 of (19/30) = A.

I don't have a calculator that can do this right now, but if you plug the left side of the above equation into it (make sure it is in degrees, not radians), you should get A.

3 0
3 years ago
Read 2 more answers
If P = (-2,-1) and Q = (4,3) are the
Ivanshal [37]

Answer:

Step-by-step explanation:

P(-2,-1) and Q(4,3)

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average of y-coordinates = (-1+3)/2 = 1

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3 0
3 years ago
Help please thank you!
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Answer:

b

Step-by-step explanation:

7 0
3 years ago
PLEASE HELP! <br><br> Estimate 132% of 42
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Answer:

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Step-by-step explanation:

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3 years ago
The lengrh of a rectangle is represented by the function L(x) = 5x. The width of that same rectangle is represented by the funct
MrRissso [65]

Step-by-step explanation:

just multiply the 2 together to get the area

it would just be

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simplified, it would be

5(2{x}^{3}  - 4 {x}^{2}  + 13)

7 0
2 years ago
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