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Alex777 [14]
3 years ago
10

What is the midpoint of the line segment that has endpoints (3,8) and (1,−4) ?

Mathematics
1 answer:
bezimeni [28]3 years ago
8 0

Answer:

D

Step-by-step explanation:

<em>Midpoint Formula:</em>

\frac{x_{1}+x_{2}}{2}, \frac{y_{1}+y_{2}}{2}

\frac{3+1}{2} ⇒ \frac{4}{2} ⇒ 2

\frac{8+-4}{2} ⇒ \frac{8-4}{2} ⇒ \frac{4}{2} ⇒2

(2,2)

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A manager records the number of hours, X, each employee works on his or her shift and develops the probability distribution belo
Reika [66]

Answer:

c. 2

Step-by-step explanation:

Given : X = No. of hours worked

           No. of people work for the manager = 50

           X = 3, 4 , 5 , 6 , 7, 8

           P(X) = 0.1 , ? , 0.14 , 0.3 , 0.36 , 0.06

To Find : No. of people work for four hours

Solution : First understand the fact that sum of all probabilities is equal to 1

So, sum of all values of P(X) = 1

⇒0.1+?+0.14+0.3+0.36+0.06 = 1

⇒0.96+? = 1

⇒?= 1-0.96

⇒? = 0.04

So, the probability of no. of people worked for 4 hours is 0.04.

⇒P(4)=0.04

Thus , To calculate no. of people work for four hours :

0.04\times 50

⇒ 2 no. of people work for four hours per shift .


5 0
2 years ago
Read 2 more answers
Please help me ASAP!!!! It is greatly appreciated!!! Will mark as Brainliest!!!!
Karo-lina-s [1.5K]

Answer: 5/4

Step-by-step explanation:

6 0
2 years ago
Very confused with this
OlgaM077 [116]

Answer:

∠ D = 28°

Step-by-step explanation:

The external angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ EBC is an exterior angle of Δ ABE, thus

∠ EBC = 90° + 34° = 124°

BD bisects ∠ EBC, so

∠ EBD = 124° ÷ 2 = 62° , then

∠ D = 180° - (90 + 62)° = 180° - 152° = 28° ( angle sum of triangle )

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Harry cycles 8 kilometres in 30 minutes.<br> Calculate his average speed, in km/h
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8 km / 0.5 hr
= 16 km/h
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Help!!! Due in 10 minutes!!!!
omeli [17]
I added 40 and 120 to get 160. i devided 160 by the 6.25 she earned and got 25.6. then i rounded up to 26 hours which is the least amount of hours she could’ve worked.
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