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padilas [110]
3 years ago
14

Tanisha and Neal are simplifying the expression (StartFraction (x Superscript 4 Baseline) (y Superscript negative 5 Baseline) Ov

er 3 (x squared) (y Superscript negative 3 Baseline) EndFraction) Superscript 4. They each began the same way.
Tanisha’s Work
Neal’s Work
(StartFraction (x Superscript 4 Baseline) (y Superscript negative 5 Baseline) Over 3 (x squared) (y Superscript negative 3 Baseline) EndFraction) Superscript 4 = (StartFraction (x squared) (y Superscript negative 2 Baseline) Over 3 EndFraction) Superscript 4
(StartFraction (x Superscript 4 Baseline) (y Superscript negative 5 Baseline) Over 3 (x squared) (y Superscript negative 3 Baseline) EndFraction) Superscript 4 = StartFraction (x Superscript 16 Baseline) (y Superscript negative 20 Baseline) Over (3 Superscript 4 Baseline (x Superscript 8 Baseline) (y Superscript negative 12 Baseline) EndFraction


Which statements are true about each person’s work? Check all that apply.
Mathematics
2 answers:
Alex787 [66]3 years ago
3 0

Answer:

You didn't the statements from which you like to know which ones are true.

But it is discovered that Neal's work is correct to the point where he stopped, but Tanisha's work has a mistake in it.

Step-by-step explanation:

Tanisha and Neal want to simplify the expression :

(x^4 y^(-5)/3x²y^(-3))^4

Tanisha's approach

(x^4 y^(-5)/3x²y^(-3))^4

= (x²y^(-2)/3^4)^4

Neil's approach.

(x^4 y^(-5)/3x²y^(-3))^4

= x^(16) y^(-20)/3^4(x^8 y^(-12))

Simplifying the expression using Tanisha's approach.

(x^4 y^(-5)/3x²y^(-3))^4

= (x²y^(-2)/3)^4

= x^(2×4) y^(-2×4)/3^4

= x^8 y^(-8)/3^4

= 3^(-4) (x/y)^8

Solving using Neal's approach.

(x^4 y^(-5)/3x²y^(-3))^4

= (x^4 y^(-5))^4/(3x²y^(-3))^4

= x^(4×4) y^(-5×4) / (3^4 x^(2×4) y^(-3×4)

= x^16 y^(-20)/ 3^4 x^8 y^(-12)

= x^(16-8) y^(-20+12) 3^(0-4)

= x^8 y^(-8) 3^(-4)

= x^8/3^4 y^8

= 3^(-4) (x/y)^8

From this, we can say that straightaway Neal's is on the line. His approach is correct, so is his work.

Tanisha's approach is acceptable too, but the results in her work is questionable. There should be

(x²y^(-2)/3)^4 not (x²y^(-2)/3^4)^4, it changes everything.

ra1l [238]3 years ago
3 0

Answer:

It will be 2,3,4 and 6.

Step-by-step explanation:

took the test and they came out that these where the correct. Plus when looking at the work you can tell that they both are on tract and are correct. and the next steps needed to be taken.

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Answer:

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The approximation can be written as f(x)=0.1x+2.5

Step-by-step explanation:

We have to approximate f(25.3)=\sqrt{25.3} with a linear function.

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Answer:

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Step-by-step explanation:

We are given that the national mean (μ) IQ score from an IQ test is 100 with a standard deviation (s) of 15.

The dean of a college want to test whether the mean IQ of her students is different from the national average. For this, she administers IQ tests to her 144 students and calculates a mean score of 113

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