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antoniya [11.8K]
3 years ago
6

Giving brainliest! Please show the working out

Mathematics
1 answer:
tiny-mole [99]3 years ago
7 0

Answer:

see explanation

Step-by-step explanation:

(a)

OC = OB ( both radii of the circle )

Thus Δ BOC is isosceles with congruent base angles.

∠ BOC = ∠ BCO = 50°

(b)

∠ ACB = 90° ( angle in a semicircle ), then

∠ ACO = 90° - 50° = 40°

OA = OC ( both radii of the circle )

Thus Δ ACO is isosceles with congruent base angles.

∠ BAC = ∠ ACO = 40°

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Copy the shape and fill in the missing angle. Sow the work. Thanks.
Otrada [13]

Answer:

x = -11

Step-by-step explanation:

Hello There!

create an equation

x + 51 + 60 + 80 = 180

combine like terms

51 + 60 + 80 = 191

x + 191 = 180

subtract 191 from each side

180 - 191 = -11

we're left with

x = -11

6 0
3 years ago
PLEASE HELP FAST The Booster Club raised $30,000 for a sports fund. No more money will be placed into the fund. Each year the fu
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Answer:

c. $24,435

Step-by-step explanation:

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3 0
3 years ago
I need help please.
Sidana [21]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Convert the rate 1000 fluid ounces per 2 hours to cups per minute
Ronch [10]
There are 8 ounces in a cup, so there are 125 cups in 1000 ounces.
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so 1000 ounces / 2 hours is
125 cups / 120 minutes
125 / 120 = 1.04 cups per minute

Check your work
multiply times 60 to get cups per hour
1.04 * 60 = 62.4 cups per hour
multiply times 8 to get ounces per hour
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multiply times 2 to get ounces per 2 hours
499.2 * 2 = 998.4
the number is not quite 1000 due to rounding the 125 / 120 as it is closer to 1.041666666666667
7 0
3 years ago
Read 2 more answers
What measure is represented by 17 feet in the figure below?
artcher [175]

Answer:

The diameter of the base.

Step-by-step explanation:

If the cylinder has a diameter of 17 feet, then the diameter of said cylinder's base will be 17 feet.

5 0
3 years ago
Read 2 more answers
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