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Svetlanka [38]
4 years ago
13

There is always a possibility that the decision reached in a hypothesis test is incorrect

Mathematics
1 answer:
bonufazy [111]4 years ago
4 0

Answer:

True

Step-by-step explanation:

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What is the answer to this question?! answer quick please!
Verizon [17]

Answer:

Step-by-step explanation:

1. 8 seconds

2. 15 quarts

8 0
3 years ago
What is the equation of a parabola that has intercepts of x=-2 and x=6 and passes through point (8,6)?
mezya [45]

Step-by-step explanation:

general form of a parabola :

y = ax² + bx + c

we have 3 points of the parabola to calculate the 3 variables :

the 2 intercepts are actually

(-2, 0)

(6, 0)

and then

(8, 6)

so, we get the 3 equations

0 = a(-2)² + b×-2 + c = 4a - 2b + c

0 = a×6² + b×6 + c = 36a + 6b + c

6 = a×8² + b×8 + c = 64a + 8b + c

from the 1st equation we get

c = -4a + 2b

using that in the 2nd equation we get

0 = 36a + 6b - 4a + 2b = 32a + 8b = 4a + b

b = -4a

therefore,

c = -4a + 2b = -4a + 2×-4a = -4a - 8a = -12a

using all that in the 3rd equation we get

6 = 64a + 8×-4a + -12a = 64a - 32a - 12a = 20a

a = 6/20 = 3/10 = 0.3

b = -4a = -4×3/10 = -12/10 = -1.2

c = -12a = -12×3/10 = -36/10 = -3.6

so, we have

y = 3/10 x² - 12/10 x - 36/10 = 3/10 × (x² - 4x - 12)

3 0
2 years ago
ASAP!! Please help me. I will not accept nonsense answers, but will mark as BRAINLIEST if you answer is correctly with solutions
Neporo4naja [7]

Answer:

(c) the domain and range do not change

Step-by-step explanation:

For y = log(x)

Domain (0, infinity)

Range (-infinity, infinity)

For y = -log(x)

Domain (0, infinity)

Range (-infinity, infinity)

Therefore the domain and range do not change

7 0
3 years ago
87 prime or composite
Sever21 [200]

Answer:

Composite

Step-by-step explanation:

You can get 87 by multiplying 29x3 so that means it is composite because you cna multiply it by something other than 87x1

7 0
4 years ago
Read 2 more answers
You are petitioning the city to hold a march for a 1 mile stretch of street. The street is 45 ft wide and each sidewalk is 5 ft
Mazyrski [523]

Answer:

The approximate number of people that could fit in the 1 mile stretch is 145,200 people

Step-by-step explanation:

The length of the street = 1 mile stretch

The width of the street = 45 ft

The depth of each sidewalk = 5 ft

1 mile = 5,280 ft

Therefore;

The area of the side walk on each side of the street = 5 × 5,280 = 26,400 ft²

The area of both side walks = 26,400×2 = 52,800 ft²

The area of the street = 45 × 5,280 = 237,600 ft²

The total area of the street = The area of the street + The area of both side walks = 237,600 ft² + 52,800 ft²

The total area of the street = 290,400 ft²

The area occupied by one person is at least 2 ft²/person

Therefore, the approximate number of people that could fit in the 1 mile stretch = (The total area of the street)/(The area occupied by one person)

The approximate number of people that could fit in the 1 mile stretch = 290,400 ft²/(2 ft²/person) = 145,200 people

The approximate number of people that could fit in the 1 mile stretch = 145,200 people.

4 0
3 years ago
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