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Semmy [17]
3 years ago
9

Find the value of x and y. Identify the type of angle pair!!

Mathematics
2 answers:
liq [111]3 years ago
6 0

Answer:

40y+20=60y-40

60y-40y=20+40

20y=60

y=60÷20

y=3

8x=2x+30

8x-2x=40

6x=30

x=30÷6

x=5

(40×3+20) = 140

8×5 = 40

(2×5+30)=40

(60×3-40)=140

alex41 [277]3 years ago
3 0

Answer:

y = 3

x = 5

Step-by-step explanation:

40y + 20 = 60 y - 40 because opposite angles are equal

solve this equation

40y + 60 = 60 y

60 = 20 y

3 = y

8x = 2x +30

6x = 30

x = 5

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If A = {1, 2, 3} and B = {1, 2, 2, 3}, is B ⊆ A? If so, is A = B?
Serjik [45]

Answer:

yes, yes

Step-by-step explanation:

B={1,2,3} it doesn't matter if it has ten 2's or one!

so A=B and A⊆B

4 0
3 years ago
Inverse function of y=f(x)=1-2/x^3
tia_tia [17]

Answer:

not sure

Step-by-step explanation:  not good at this stuf



6 0
3 years ago
a rectangular has a perimeter of 50 centimeters if the width of the rectangular is 10 centimeters what is its length
kogti [31]
10+10=20 50-20=30/2= 15 cm for length
5 0
2 years ago
Find the area of the shaded region. round answers to the nearest tenth. assume all inscribed polygons are regular. 29.3 units2
FromTheMoon [43]
The picture in the attached figure

we know that
the area of the shaded region is equal to
(2/3)*[area of the circle - the area of the triangle]  

step 1
Find the area of a circle Ac
Ac = π r²
Ac = π (6)²
Ac = 113.10 units²

step 2
find the area of the triangle At
The triangle is an equilateral triangle with angles on each corner equal to 60 degrees. Meanwhile,
the 3 angles at the center is 120 degrees each since a circle is 360 degree.
 We know that the radius (line from centerpoint to corner) is equivalent to 6.
Using the cosine law,
we can calculate for the length of one side.
s² = 6^ + 6² – 2 (6) (6) cos 120
s² = 108
s = 10.4 units
Since this is an equilateral triangle, therefore, all sides are equal.
The area for this is:
At = (sqrt3 / 4) * s²
At = 46.77 units²

step 3
the area of the shaded region=(2/3)*[area of the circle - the area of the triangle]  
the area of the shaded region=(2/3)*[113.10-46.77]------> 44.22 units²

therefore

the answer is
the area of the shaded region is 44.22 units²


5 0
3 years ago
.
tensa zangetsu [6.8K]
The answer should be 242.75 cubic centimeters!!
4 0
3 years ago
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