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natka813 [3]
3 years ago
10

PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
Wittaler [7]3 years ago
8 0
System<span> of </span>equations<span> are independent, if 2nd </span>equation<span> is not multiplication of first</span>equation<span> by some </span>number<span> . ... </span>Simplify<span> the 2nd </span>equation: ... y - 2x = -7<span> ... If </span>you solve<span> the </span>equations<span>algebraically and </span>you<span> get a </span>solution<span> such as 5=5, then ... If </span>you use<span> either method and </span>end<span> up with a</span>statement<span> that's always true    i hope this helps</span>
Olegator [25]3 years ago
6 0

Answer:

Sample Response: Since the statement is true, there are an infinite number of solutions to the system. This statement also indicates that the lines are equivalent.





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Mama L [17]
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Is it possible for the line segments of a triangle to be 6 cm, 7 cm, and 12 cm in length?
Paul [167]

Answer:

Yes because sum of 2 line segment is greater than the third side

Step-by-step explanation:

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A medical website states that 40% of U.S. adults are registered organ donors. A researcher believes that the proportion is too h
Marat540 [252]

Answer:

P value is 0.1932

conclusion is that find value P greater than hypothesis test at the 0.05 level

Step-by-step explanation:

Given data

registered organ donors P  = 40%

sample n = 200

registered organ donors x = 74

hypothesis test α = 0.05

to find out

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solution

we take a trail p less than 40 % i.e 0.40

so p = x/n

p = 74 / 200 = 0.37

so we find here Z value  i.e

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so Z = 0.37 - 0.40 / √(0.40×0.60/200)

Z = - 0.866

so p value for Z (-0.866) from z table

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4 0
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Convert the length 7 centimeters to meters. Compare the numerical values when both numbers are written in scientific notation
miv72 [106K]
<span>1.       </span><span>Given numbers
=> 7 centimeters convert to meters
In every 1 meter there are 100 centimeters
=> 7 / 100
=> 0.07
Therefore in 7 centimeters there are 0.07 meters.
7 cm is a whole number while 0.07 m is a decimal number
Scientific Notation of each numbers
=> 7 cm = 7 x 10^0
=> 7 m = 1 x 10^-2
Scientific notation by the way is an expression used by the scientist to make a large number or very small number easy to handle.


</span>



4 0
3 years ago
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