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GarryVolchara [31]
3 years ago
14

Given: A(-4,1), B (6, 1), C (-2, -3), D (4, -3), E (5, 4) and the center O (1, 1); use 3.14 for

Mathematics
1 answer:
UNO [17]3 years ago
4 0

Answer:

Step-by-step explanation:

R = 5 cm = 1 - (-4)

D = 10 cm = 2R

CD = 6 cm = 2 - (-4)

A = π(5)² = 25π cm²

Α ≈ 25(3.14) = 78.5 cm²

C = 10π

C ≈ 10(3.14) = 31.4 cm

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Exercise 30 please , show work
ArbitrLikvidat [17]
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=20a-16a+24b-30b= \\
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3 0
3 years ago
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Math help what is the answer will give brainliest.
artcher [175]
The two equations are
x + y = 7
and
4x + 2.5y = 22
the first equation can be solved for x to be
x = 7 - y
next you can substitute x in the second equation
4(7 - y) + 2.5y = 22
Distribute 4 to everything in the parentheses
28 - 4y + 2.5y = 22
combine like terms:
28 - 1.5y = 22
subtract 28 from both sides of the equation
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divide both sides by -1.5
y =  4
plug this in to the original equation of x+y=7
x + 4 = 7
subtract 4 from both sides.
x = 3
Final Answer: they bought 3 adult tickets and 4 student tickets


Hope this helps!
7 0
3 years ago
What is the base of a parallelogram with height 6.2 meters and an area of 80.6 square meters
Diano4ka-milaya [45]
80.6 / 6.2 = 13

I think the base is 13 meters.

Formula is area = b times height

Hope this helped
4 0
3 years ago
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40 POINTS. When they form conical piles, granular materials such as salt, gravel, and sand settle at different "angles of repose
grandymaker [24]

Answer:

34.0 degrees, 29.6 feet in Diameter.

This is a right triangle trigonometry question.

Use half of the diameter to form the base of the triangle (19.3 ft) with a height 0f 13.

Use Inverse Tangent function to find the angle of repose

round to 34.0

then use the angle of repose to solve trigonometric function of the tangent for the radius of the other cone.

switch denominator and tangent

multiply by 2 to get diameter of second cone

14.82*2≈29.6

hopefully this helps!

7 0
3 years ago
What does negative 2 over 3 > - 1 indicate about the positions of negative 2 over 3 and -1 on the number line
disa [49]

Answer:

c

Step-by-step explanation:

8 0
3 years ago
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