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Tanya [424]
3 years ago
8

Explain how to determine if the two expressions are equivalent using x = 6 and x = 2.

Mathematics
1 answer:
Elina [12.6K]3 years ago
3 0
You substitute the variables with the number into the equations and set the equations equal to each other and solve ( systems of equations )
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For the following​ case, assume that the population standard deviation is known and decide whether use of the​ z-interval proced
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Answer:

B. It is reasonable to use the? z-interval procedure in this case? since, although the sample is small? (size less than? 15), the variable under consideration is very close to being normally distributed.

Step-by-step explanation:

answer b is considered to be correct because we know that the population is normal and the standard deviation is known, which allows using the interval z, the answer A is not correct because although the option to use the interval z is given, which is correct, the large sample is not favored, the answer C and D are incorrect because they both reject the use of the z interval and in d it is further rejected that although there is a normal distribution the sample is not, which is false

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3 years ago
Find the amount owed:<br> $12,460 loan at 5.6% interest for 30 months
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2 years ago
The expression (3x^7)^4 is equivalent to c^n what is the value of c
Nimfa-mama [501]

Answer:

n= 21

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Step-by-step explanation:

The expression is given as;

(3x⁷)⁴

Apply the brackets law of indices which states that :

If a term with a power is itself raised to a power then the powers are multiplied together

(xᵃ)ᵇ = xᵃˣᵇ

Applying the same;

(3x⁷)⁴ = 3x²¹

If 3x²¹ = c^n

Then n = 21

and

c= 3x

7 0
2 years ago
Is the following shape a rectangle? How do you know?
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I would think it’s a square
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liraira [26]

Answer:

Step-by-step explanation:

2(3x-1)+2(6)

6x-2+12

6x+10

8 0
3 years ago
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