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OLga [1]
3 years ago
5

Help me with this please!!

Mathematics
1 answer:
kolbaska11 [484]3 years ago
6 0

Answer:

arc ABC = 280°

Step-by-step explanation:

The tangent- chord angle at A is half its intercepted arc AC, then

arc AC = 2 × 40° = 80°

major arc ABC = 360° - 80° = 280°

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How many real solutions does the system have?
mihalych1998 [28]
There are no real solutions to this system. The functions do not intersect
8 0
3 years ago
Read 2 more answers
A rectangle has a width of 9 units and a length of 40 units. What is the length of a diagonal?
aliina [53]

Answer:

41 units

Step-by-step explanation:

Rectangles have right angles, so we can use Pythagorean theorem to find the diagonal.

c² = a² + b²

c² = 9² + 40²

c² = 81 + 1600

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c = 41

4 0
3 years ago
Over the last three evenings, Debra received a total of 110 phone calls at the call center. The second evening, she received 4 t
Elza [17]

Answer:

See below.

Step-by-step explanation:

Total = 110

Let calls on third evening = x

second evening = 4x

first evening = x + 8

=> x + 4x + x + 8 = 110

=> 6x = 102

=> x = 17

First evening = x = 17 calls

Second evening = 4x = 68 calls

Third evening = x + 8 = 25 calls

4 0
2 years ago
Without multpilying tell which is greater 4/5 x 45 or 2/3 x 45. Explain
soldier1979 [14.2K]

4/5 = 80%

2/3 = 66.66666...%

4/5 is a bigger fraction, so (4/5) x 45 is a bigger fraction.

4 0
2 years ago
A friend of yours, a senior, took the Graduate Record Exam in September and scored in the 99th percentile. InFebruary, your frie
Alecsey [184]

Answer:

"differential selection"

Step-by-step explanation:

If your friend took the test twice and passed both times with a score above 90% then the minor difference in price is most likely due to "differential selection". The first test had  questions that he had a little more experience in solving, while the second time he was most likely given a couple questions that he wasn't as prepared for as he was the first time. This is most likely the cause for the difference in percentiles.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

3 0
3 years ago
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