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marusya05 [52]
3 years ago
13

Find m PLEASE HELP 10 POINTS!!

Mathematics
2 answers:
artcher [175]3 years ago
8 0
Use the cos rule

cos^-1(18^2+28^2-12^2 divided by 2*18*28

Which is 16.99 degrees, which is 17 (option d)
Iteru [2.4K]3 years ago
6 0

Answer:

<em>(D). 17 in.</em>

Step-by-step explanation:

c² = a² + b² - 2abcosC

cosC = \frac{a^2 + b^2 -c^2}{2ab}

m∠C = cos^{-1} ( \frac{a^2 + b^2 -c^2}{2ab} )

m∠C = cos^{-1} ( \frac{28^2 +18^2 -12^2 }{2(28)(18)} )

<em>m∠C </em>= cos^{-1} ( \frac{964}{1008} ) ≈<em> 17 in.</em>

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-2x²-xy+y²

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3 0
3 years ago
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Nataly [62]
Look at the picture for your answer

5 0
3 years ago
1/9,1/3,5/9 find the rule
anastassius [24]
It’s going up by 2/9 . if you did it for the first one it’d b 3/9 which is 1/3
3 0
3 years ago
Which of the following is not an ordered pair from the function f(x) = 5x - 6?
DerKrebs [107]

We have been given a function f(x) = 5x - 6. We are asked to choose the point from given choices, which is not a solution of given function.

Let us check each given point one by one.

A. (3,9)

f(x) = 5x - 6

9= 5(3)-6

9=15-6

9=9

Since both sides of function are equal, therefore, point (3,9) is the solution of our given function.

B. (1,-1)

f(x) = 5x - 6

-1= 5(1)-6

-1= 5-6

-1=-1

Since both sides of function are equal, therefore, point (1,-1) is the solution of our given function.

C. (5,19)

f(x) = 5x - 6

19= 5(5)-6

19= 25-6

19=19

Since both sides of function are equal, therefore, point (5,19) is the solution of our given function.

D. (4,10)

f(x) = 5x - 6

10= 5(4)-6

10= 20-6

10\neq 14

Since both sides of function are not equal, therefore, point (4,10) is not a solution of our given function and option D is the correct choice.

7 0
4 years ago
Solve for d<br> 20(d − 4) + 4d ≤ 8
tatiyna

Answer:

d≤11/3

Step-by-step explanation:

hope this is helpful!!

4 0
4 years ago
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