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Luden [163]
3 years ago
9

Which is the most effective way to obtain a random sample of your school population

Mathematics
1 answer:
Ierofanga [76]3 years ago
8 0
Ask every fifth person that exits the school
(systematic random)
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What is 5/8 divided by 5/12?
stiks02 [169]
\frac{5}{8} \div  \frac{5}{12} \\\\Switch\ to\ muliplication\ and\ find\ reciprocal\ of\ second\ fraction.\\\\ \frac{5}{8}\times \frac{12}{5} \\\\Multiply\ Across.\\\\5\times12=60\\8\times5=40\\\\ \frac{60}{40} \\\\Simplify\\\\ \frac{60}{40} \div20= \frac{3}{2} =1 \frac{1}{2}\ or\ 1.5
8 0
3 years ago
Read 2 more answers
2(4x – 3) ≥ –3(3x) + 5x?Which number line represents the solution set for the inequality 2x – 6 ≥ 6(x – 2) + 8?
nika2105 [10]

Answer:

x<=-1/2

Step-by-step explanation:

An inequality is a mathematical relationship that compares two unequal numbers using the number line

To solve the inequality 2x – 6 ≥ 6(x – 2) + 8

We first simplify both sides of the inequality

2x-6≥6x-12+8

2x-6≥6x-4

Add 6 to both sides

2x≥6x+2

-4x≥2

x≥2/-4

Sign changes when we divide both sides of equation by a negative sign

x<=-1/2

Therefore x is less than or equal to -1/2 on the number line

5 0
3 years ago
What is the trigonometric ratio for sin Z ?
Schach [20]

In all right triangles, the ratio between a leg and the hypothenuse is the sine of the angle opposite to the leg.

So, in your case, we have

\sin(Z) = \dfrac{XY}{XZ}

In order to find XY, we have

XY = \sqrt{XZ^2-YZ^2} = \sqrt{1600-1024}=\sqrt{576} = 24

So, the ratio for the sine is

\sin(Z) = \dfrac{XY}{XZ} = \dfrac{24}{40} = \dfrac{3}{5}

6 0
3 years ago
What is the Equation of the Line Passes through the points (-4,8) and (1,3)
Whitepunk [10]
Answer: y = –x + 4

Explanation:

8 0
3 years ago
The volume of a cylinder is 4,019.2 cubic units. If the radius is 8 units, how tall is the cylinder?
AVprozaik [17]
We will be using the formula in looking for the volume of the cylinder which is

V = πr²h

where:

r = radius
h = height
V = volume

but in the problem V and r have values already:
r = 8
V = 4019.2

plug this in the volume equation:

V = πr²h
= 4019.2 = π* 8² * h
= 4019.2 = 64πh
= 4019.2 / 64π = h

so the answer is: h = 4019.2 /201.06193
= 19.99 is the height of the cylinder.


8 0
3 years ago
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