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Anestetic [448]
3 years ago
12

I need help with this problem. Please!

Mathematics
1 answer:
Leviafan [203]3 years ago
6 0
The first blank is 69 degrees
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Marcy makes 15 of 20 free throws at basketball practice. What is the probability that she will miss her free throw? Possible ans
arlik [135]

Answer:

3/4

Step-by-step explanation:

15/20=3/4 if you divide both sides by 5

3 0
2 years ago
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What is the value of this expression when a= - 3 and b=-2?<br> (3a^-2b^6/2a^-1b^5)^2
lisabon 2012 [21]

Answer:

so lets just rewrite it with A=-3 amd B=-2

(-9^4^-9^2^5)^2

which is equal to... 1!

Hope This Helps!!!

7 0
2 years ago
If d=9cm, find the circumference
sergij07 [2.7K]

The circumference is the diameter times PI

The exact circumference would be 9PI cm

The approximate circumference would be 9 x 3.14 = 28.26 cm

4 0
3 years ago
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An installation technician for a specialized communication system is dispatched to a city only when 3 or more orders have been p
bazaltina [42]

Answer:

0.3233

0.09

Step-by-step explanation:

Given that :

Mean, λ = 0.25 for a 100,000 per week

For a population of 800,000 :

λ = 800,000 / 100,000 * 0.25 = 8 * 0.25 = 2 orders per week

Probability that technician is required after one week ;

After one week, order is beyond 2 ; hence, order, x ≥ 3

P(x ≥ 3) = 1 - [p(x=0) + p(x= 1) + p(x =2)]

P(x ≥ 3) = 1 - e^-λ(1 + 2¹/1! + 2²/2!)

P(x ≥ 3) = 1 - e^-2(1+2+2) = 1 - e^-2*5 = 1 - e^-10

P(x ≥ 3) = 1 - e^-2 * 10

P(x ≥ 3) = 1 - 0.6766764

P(x ≥ 3) = 0.3233

B.)

Mean, λ for more than 2 weeks = 2 * 2 = 4

P(x < 2) = p(x = 0) + p(x = 1)

P(x < 2) = e^-4(0 + 4^1/1!)

P(x < 2) = e^-4(0 + 4) = e^-4(5)

P(x < 2) = e^-4(5) = 0.0183156 * 5 = 0.0915

P(x < 2) = 0.09

8 0
3 years ago
A + 2 = 6<br><br> Solving One and Two step Equations
Alex787 [66]

Answer:

a = 4

Step-by-step explanation:

a + 2 = 6

Subtract 2 from both sides

a + 2 - 2 =  6 - 2

           a = 4

4 0
2 years ago
Read 2 more answers
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