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zhenek [66]
2 years ago
15

Which expression is equivalent to StartFraction 10 x Superscript 6 Baseline y Superscript 12 Baseline Over negative 5 x Superscr

ipt negative 2 Baseline y Superscript negative 6 Baseline EndFraction? Assume x not-equals 0, y not-equals 0. â€"50x8y18 â€"2x8y18 â€"2x12y72 5x8y18.
Mathematics
2 answers:
Oxana [17]2 years ago
6 0

Equivalent expressions are expressions that have the same value

The equivalent expression of \frac{10x^6y^{12}}{-5x^{-2}y^{-6}} is -2x^{8}y^{18}

The expression is given as:

\frac{10x^6y^{12}}{-5x^{-2}y^{-6}}

Divide the common terms in the above expression

\frac{10x^6y^{12}}{-5x^{-2}y^{-6}} = -\frac{2x^6y^{12}}{x^{-2}y^{-6}}

Combine expression with the same base, by applying the law of indices

\frac{10x^6y^{12}}{-5x^{-2}y^{-6}} = -2x^{6--2}y^{12--6}

Rewrite the exponents as follows

\frac{10x^6y^{12}}{-5x^{-2}y^{-6}} = -2x^{6+2}y^{12+6}

Evaluate the exponents

\frac{10x^6y^{12}}{-5x^{-2}y^{-6}} = -2x^{8}y^{18}

Hence, the equivalent expression of \frac{10x^6y^{12}}{-5x^{-2}y^{-6}} is -2x^{8}y^{18}

Read more about equivalent expressions at:

brainly.com/question/2972832

PIT_PIT [208]2 years ago
6 0

Answer:

B. –2x8y18

Step-by-step explanation:

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A turtle can walk 1/12 of a kilometer in an hour. The turtle is 1/5 o a kilometer away from a pond. At this speed,how long will
eimsori [14]

Answer:

It will take 5/12 hours.

Step-by-step explanation:

Given,

The speed of turtle = \frac{1}{12} km per hour,

Distance covered = \frac{1}{5} km,

Since,

Speed =\frac{Distance}{Time}

\implies Time =\frac{Distance}{Speed}

Hence, the speed of turtle = \frac{\text{1}{12}}{\frac{1}{5}}

=\frac{5}{12} hour.

7 0
2 years ago
Given: PRST square
yuradex [85]
There is no difficulty in this problem until you construct the figures. How can we do it is shown in the attached picture. After drawing PRST, from the point P, we can draw PMKD and later we can complete PMCT as a result. From this picture, we can see that the side of PMCT is also a. Then, the area of this square is A=a^{2}

6 0
2 years ago
The mean of five numbers is 8. If one of the five numbers is removed, the mean becomes 9. What is the value of the number that w
mestny [16]

Using the mean concept, it is found that the value of the number that was removed was of 4.

<h3>What is the mean?</h3>

The mean of a data-set is given by the <u>sum of all observations in the data-set divided by the number of observations</u>.

The mean of five numbers is 8, hence, the sum of the numbers is given by:

S = 5 x 8 = 40.

If one of the five numbers is removed, the mean becomes 9, hence, the sum of the four numbers is given by:

S = 4 x 9 = 36.

The difference is:

40 - 36 = 4.

Hence, the value of the number that was removed was of 4.

More can be learned about the mean concept at brainly.com/question/25122507

#SPJ1

3 0
2 years ago
What is the equation of a line with a slope of -2 and passes through the point 3,5¿
dalvyx [7]
Y - y₁ = m(x - x₁)
y - 5 = -2(x - 3)
y - 5 = -2(x) + 2(3)
y - 5 = -2x + 6
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3 0
3 years ago
The mean life of a certain brand of auto batteries is 44 months with a standard deviation of 3 months. Assume that the lives of
alisha [4.7K]

Answer:

99.7%

Step-by-step explanation:

Using the z score formula

z-score is z = (x-μ)/σ

where:

x = raw score

μ = population mean

σ = population standard deviation.

a) for x = raw score = 35

μ = population mean = 44

σ = population standard deviation =3

z = (35 - 44)/3

z = -9/3

z = -3

b) for x = raw score = 53

μ = population mean = 44

σ = population standard deviation =3

z = (53 - 44)/3

z = 9/3

z = 3

We would use the standard normal distribution table to find their probabilities

P(Z<=-3)=0.0013499

P(Z<=+3)=0.99865

So P(-3<=Z<=3)=0.99865 - 0.0013499 = 0.9973

Converting to percentage = 0.9973 × 100 = 99.73%

Therefore, the percentage of auto batteries of this brand that have a life of 35 to 53 months to one decimal place is 99.7%

6 0
3 years ago
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