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bazaltina [42]
3 years ago
8

To​ ​ get​ ​ an​ ​ accurate​ ​ result,​ ​ a​ ​ sample​ ​ size​ ​ must​ ​ be

Mathematics
1 answer:
levacccp [35]3 years ago
8 0
At least 30 ..................
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Solve for x. Round to the nearest tenth. Help
LekaFEV [45]

Answer:

26

Step-by-step explanation:

cosθ = adjacent / hypotenuse

cos(26) = 18 / x

x= 18 / cos(26)

x= 27.82418 ≈ 20 (to nearest tenth)

8 0
2 years ago
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The school board administered a reading test to all eighth-grade students at High Achievers Charter School and determined that 1
In-s [12.5K]

Answer:

b) 10 percent of all eighth-grade students at HACS are reading below grade level

Step-by-step explanation:

The sample is eight-grade students at High Achievers Charter School at a particular time and this forms a part of the total population of eight-grade students in the school. So we can conclude that for every eight-grade class in the school, 10% are reading below grade level.

5 0
3 years ago
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Whats the volume of a pyramid
Fantom [35]

Answer:

The volume of a pyramid is 1/3 x Base Area x Height.

Step-by-step explanation:

3 0
3 years ago
Does anyone know what the equation for this graph would be
omeli [17]

Answer:

<em>f(x) = 1/2x + 4</em>

Step-by-step explanation:

The rise of the function is 1 and the run is 2, so our slope is .5 or 1/2!

The function crosses the y-intercept at point (0,4) so our b value is positive 4!

3 0
3 years ago
The polynomial 4x^3 - 6x^2 + 8x – 12 can be grouped in different ways to factor by
zubka84 [21]

Answer:

(4x3-6x) + (8x-12)= 2x

(4x3+8x) + (-6x2-12)= 2(2x-3) (x^2+2)

Step-by-step explanation:

All you have to do is simplify.

8 0
3 years ago
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