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Dennis_Churaev [7]
2 years ago
15

100 POINTS WILL GIVE BRAINLIEST TOO FIRST RESPONSE

Mathematics
1 answer:
yulyashka [42]2 years ago
5 0

Answer:

58

Step-by-step explanation:

Angle D is an inscribed angle that intercepts arc ZBC, so the measure of angle D is half the measure of arc ZBC.

m<D = (1/2)[m(arc)ZBC]

10x + 16 = (1/2)(7x - 5 + 154)

20x + 32 = 7x + 149

13x = 117

x = 9

m(arc)BZ = 7x - 5 = 7(9) - 5 = 63 - 5 = 58

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What is the value of the expression n(8n/10) when n =<br> 5?
erastovalidia [21]

Answer:

(8n/10)

8 × 5 = 40

40 ÷ 10 = <em><u>4</u></em>

5 0
2 years ago
How do I do this help
tatuchka [14]
6÷40.5= $6.75 per hour
8÷54= $6.75 per hour
y= 6.75x
5 0
3 years ago
The scheduled arrival time for a daily flight from Boston to New York is 9:30 am. Historical data show that the arrival time fol
Galina-37 [17]

Answer:

Step-by-step explanation:

Let x be a random variable representing the flight arrival time from Boston to New York.

For a uniform probability distribution, the notation is

X U(a, b) where a is the lowest value of x and b is the lowest value of x

The probability density function, f(x) = 1/(b - a)

Mean, µ = (a + b)/2

Standard deviation, σ = √(b - a)²/12

From the information given, the time difference in minutes is 9:57 - 9:07 = 50 minutes. Therefore,

a = 0

b = 50

µ = (0 + 50)/2 = 25

σ = √(50 - 0)²/12 = 14.43

b) converting to minutes, it is 9:30 - 9:07 = 23 minutes

the probability that a flight arrives late(later than 9:30 am) is expressed as P(x > 23)

f(x) = 1/(50) = 0.02

P(x > 23) = (50 - 23)0.02 = 0.54

7 0
3 years ago
PLEASE HELP!!!!!!!! WILL MARK BRAINLIEST!!!! aLSO 99 POINTS!!!!!!!! If a train is scheduled to go 87 and 1 half miles in 2 and 1
Roman55 [17]
The answer is C. 35 mph

3 0
3 years ago
Read 2 more answers
Eight angles of a nonagon measure 1389, 154º. 145°, 132°, 148°, 143,
PIT_PIT [208]

Answer:

103°

Step-by-step explanation:

The total angle in a nonagon is 1260. To get the missing angle, we add up all the given angle together and subtract it from 1260.

138 + 154º + 145° + 132° + 148° + 143 + 147 + 150 = 1157

1260 - 1157 = 103

Therefore, the missing angle is 103°

6 0
2 years ago
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