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Lapatulllka [165]
3 years ago
13

Is m=10 and m=-10 is it parallel lines or perpendicular

Mathematics
1 answer:
MakcuM [25]3 years ago
7 0

Neither, for lines to be parallel they have to have the same slope, and for lines to be perpendicular they have to be the negative reciprocal of the slope of the other line. In this case, the line perpendicular to the line with slope m=10 would be m=1/-10 or -1/10

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In the figure, OA is a diameter of the smaller circle and O is the centre of the larger circle. Find the
Burka [1]

Answer:

942 6/7 cm²

Step-by-step explanation:

Since O = Center of bigger circle, OA = Radius of bigger circle.

∴ Area of smaller circle - Area of bigger circle = Area of shaded part.

∴ Area of smaller circle = 22/7 × 10²

                                       = 22/7 × 100

                                       = 2200/7

                                       = 314 2/7 cm²

∴ Area of bigger circle = 22/7 × 20 ²

                                      = 22/7 × 400

                                      = 1257  1/7 cm²

∴ Area of shaded part = 1257 1/7 - 314 2/7

                                     =  942 6/7 cm²

5 0
3 years ago
Evaluate 4 times a number Q + 25 when Q equals 2​
madam [21]

Answer:

4*(Q+25)    Q=2

Step-by-step explanation:

4*(2+25)  = 4*27  =  108

8 0
3 years ago
Mr. Thompson received a water bill for $85.98. The bill covered three months of service. He used the same amount of water each m
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8 0
3 years ago
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What is the distance between (8, -3) and (4, – 7)?
Dahasolnce [82]

Answer:

4

Step-by-step explanation:

using

\sqrt{(x2 - x1) + (y2 - y1)}

\sqrt{(8 - 3) + (4  - ( - 7)}

\sqrt{5 + 11}

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7 0
3 years ago
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A special box designed to hold an antique artifact is shaped like a triangular prism. The surface area of the box is 421.2 squar
Oksanka [162]
The area of the base is:
 A = root ((s-a) * (s-b) * (s-c) * (s))
 Where,
 a, b, c: sides of the triangle
 s = (a + b + c) / 2
 We have then:
 s = (9 + 9 + 9) / 2
 s = 13.5
 A = root ((13.5-9) * (13.5-9) * (13.5-9) * (13.5))
 A = 35.07
 Then, the surface area of the prism is:
 S.A = 2 * A + 9h + 9h + 9h
 Where,
 h: height of the prism:
 Substituting values:
 421.2 = 2 * (35.07) + 9h + 9h + 9h
 Clearing h:
 27h = (421.2 - 2 * (35.07))
 h = (421.2 - 2 * (35.07)) / (27)
 h = 13
 Answer:
 
the height of the box is:
 
h = 13 inches
8 0
3 years ago
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