3 years ago

Sample size non-inferiority tests for two means using differences

Mathematics

1 answer:

andreev551 [17]3 years ago

6 0

What's the question?

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What are solutions to the equation below x^2 +3x-18=0

Ivenika [448]

$x^2 +3x-18=0\\ x^2-3x+6x-18=0\\ x(x-3)+6(x-3)=0\\ (x+6)(x-3)=0\\ x=-6 \vee x=3$

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3 years ago

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Complete the table of equivalent ratios. 3:2 <br>?:4<br>9:6<br>12:8<br>15:10

Vera_Pavlovna [14]

Answer:

6:4

Step-by-step explanation:

well on one side your adding 3 to the next ratio

so on the other side your doing the same of adding 2 to the next ratio

also they all reduce down to 3:2

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3 years ago

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Using the formula C=2pi r find the circumference of a circle with diameter of 28 inches. Round your answer to the nearest inch.

Ivenika [448]

Answer: 88 inches

Step-by-step explanation:

We know that the formula to find the circumference of circle is given by :-

$C=2\pi r$ , where r is the radius of the circle.

Given : Diameter of circle = 28 inches

Also, diameter is twice of radius.

i.e. 2r=28

Therefore, the circumference of circle will be :-

$C=2\pi r=(2r)\pi=28\times(3.14)=87.92text{ inches}\approx88\text{ inches}$

Hence, the circumference of circle is 88 inches.

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3 years ago

If the boundary lines of two half planes are parallel, then they have no solution area.

jenyasd209 [6]

Answer: True

Step-by-step explanation:

(Guess dont take this seriously)

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3 years ago

Consider the line y =

posledela

Answer:

y= what? Whats the first equation

Step-by-step explanation:

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