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anzhelika [568]
3 years ago
11

F = {(1, 4), (2, 3), (5, 8), (4, 7)} F-1 is a function. True False

Mathematics
1 answer:
zmey [24]3 years ago
6 0
True......................
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Plese helpme I have problems in 4 ,5 I need find the missing side.
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#4) From the reference angle of 58° we can see that we have the side opposite to that angle as well as the hypotenuse. Recall that sin=opp/hyp so we are going to use sine to find that side
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19 sin(58°) = x      (plug into calculator)
16.1 = x
#5) From the reference angle of 56°, we see that we have the adjacent and the opposite sides. Remember that tan=opp/adj so we will use tangent to find x
tan(56°) = \frac{12}{x}        (multiply both sides by \frac{1}{12})
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[tex] \frac{12}{tan(56)} = x
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8 0
3 years ago
Find the area of the polygon. 32 m 20 m 16 m 40 m he area of the polygon is square meters.​
jenyasd209 [6]

Answer:

Step-by-step explanation:

4 0
3 years ago
Find the value of x. If​ necessary, write your answer in the simplest radical form.
Paul [167]

Answer:

x = 4\sqrt{5}

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

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3 0
2 years ago
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Let ​ x^2+18x=44 .​ What values make an equivalent number sentence after completing the square?
Lostsunrise [7]
To find the final term to compete the square you need to divide the 'x' term by 2 then square it

x^2 +18x + = 44+ \\ x^2+18x+( \frac{18}{2} )^2=44+( \frac{18}{2} )^2 \\ x^2+18x+9^2=44+9^2 \\ x^2+18x+81=44+81 \\ (x+9)^2=125 - equivalent equation
6 0
3 years ago
Read 2 more answers
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