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vaieri [72.5K]
2 years ago
15

Which sets of angles add to equal 180°?

Mathematics
1 answer:
Anit [1.1K]2 years ago
4 0

Answer:

D

Step-by-step explanation:

interior angles of triangle will always add up to be 180. Otherwise, trigonometry will be impossible

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Whats 1+1 i need to know asap
ASHA 777 [7]

This is probably the hardest question I've ever had to answer. I'm going to take a wild guess and say 2?????

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3 years ago
The radius of a spherical ball is measured at r = 25 cm. Estimate the maximum error in the volume and surface area if r is accur
natulia [17]

Answer:

Volume = 2384.582 cm^3

Surface Area = 189.626 cm^2

Step-by-step explanation:

With the accuracy of r within 0.6 cm minimum & maximum values are 25-0.3 and 25+0.3 respectively.

Taking r = 25 cm

Volume = (4/3)*Pi*R3 = 65449.847

Surface Area = 4*Pi*R2 = 7853.982

The minimum possible values for Volume and surface area would be:

if r = 24.7 cm

Volume = (4/3)*Pi*R3 = 63121.814 cm^3

Surface Area = 4*Pi*R2 = 7666.617 cm^2

The maximum possible values for Volume and surface area would be:

if r = 25.3 cm

Volume = (4/3)*Pi*R3 = 67834.429 cm^3

Surface Area = 4*Pi*R2 = 8043.608 cm^2

Error from Minimum values:

Volume = 2328.033 cm^3

Surface Area = 187.365 cm^2

Error from Maximum values:

Volume = 2384.582 cm^3

Surface Area = 189.626 cm^2

3 0
3 years ago
Please help solve for correct answer​
EastWind [94]

Answer:

x = 210

Step-by-step explanation:

The opposite arc is always twice the angle.

so 105 * 2 = 210.

4 0
2 years ago
How do you know if two lines are parallel without a equation?
sesenic [268]
If they do not have solutions (intersections).
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3 years ago
If the dimensions of a rectangle are A plus 3b and A minus 3b what is the area of the rectangle
tresset_1 [31]

area=legnth times width

we notice this is a special case

(a+b)(a-b)=a^2-b^2

area=(a+3b)(a-3b)=a^2-9b^2

area=a^2-9b^2

5 0
3 years ago
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