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3 years ago

What expression is equivalent to 7sqrtx^2/5sqrty^3

Mathematics

1 answer:

V125BC [204]3 years ago

3 0

Answer:

Step-by-step explanation:

Sounds as tho' possible answer choices were listed. Please, share them without being asked to do so. Thank you.

7√(x²) 7√(x²)

------------- = ----------------------

5 √(y³) 5√( y^(3/2) )

We want to get the fractional exponent out of the denominator. To do this, multiply both numerator and denominator by y^(1/2):

7√(x²) 7√(x²) y^(1/2) 7√(x²)·y^(1/2) 7x√y

------------- = --------------------- * ----------- = --------------------- = ----------

5 √(y³) 5√( y^(3/2) ) y^(1/2) 5 √(y²) 5y

This is the final answer. We have succeeded in removing radicals / fractional exponents from the denominator.

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PLEASE HELP!! I’m very confuse

SVETLANKA909090 [29]

Given:

A(16, 4)

B(34, 40)

Line segment AB partition in the ratio 1 : 5.

To find:

The coordinate of a point that partitions AB.

Solution:

Section formula:

$$P(x,y)=\left(\frac{m x_{2}+n x_{1}}{m+n}, \frac{m y_{2}+m y_{1}}{m+n}\right)$

Here $x_1=16, y_1=4, x_2=34, y_2=40$ and m = 1, n = 5

$$P(x,y)=\left(\frac{1\times 34+5 \times 16}{1+5}, \frac{1\times 40+5 \times4}{1+5}\right)$

$$P(x,y)=\left(\frac{ 34+80}{6}, \frac{40+20}{6}\right)$

$$P(x,y)=\left(\frac{ 114}{6}, \frac{60}{6}\right)$

$$P(x,y)=(19, 10)$

The coordinate of point that partitions the segment AB is (19, 10).

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3 years ago

What is the point-slope equation of the line with slope -13 that goes through the point (5, 7)?

WINSTONCH [101]

Hello
the point-slope equation of the line with slope -13 that goes through the point (5, 7) is : <span>A) y - 7 = -13(x - 5)
because ; 7-7= -13(5-5)</span>

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2 years ago

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3 years ago

How would you write 2.11 as a fraction in simplest form

Anni [7]

So,

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3 years ago

The owners of an eyeglass store claim that they fill customers' orders, on average, in 60 minutes with a standard deviation of 1

melomori [17]

By applying z-score formula we got that if a reporter determines a mean order time of 63 minutes then value o Z is 1.19

<h3>What is standard deviation?</h3>

Standard deviation is a number used to tell how measurements for a group are spread out from the average (mean), or expected value

Here given that

The owners of an eyeglass store claim that they fill customers' orders, on average, in 60 minutes with a standard deviation of 15. 9 minutes. Based on a random sample of 40 orders, a reporter determines a mean order time of 63 minutes

mean=μ=60

standard deviation=σ=15.9

number of sample=n=40

$\bar{x}=63 \\$

Now we can calculate z by z-score formula as

$z=\frac{\bar{x}-\mu}{\frac{\sigma}{\sqrt{n}}} \\\\&=\frac{63-60}{\frac{15 \cdot 9}{40}} \\ \\=\frac{3}{2.5140} \\ \\=1.19\end{aligned}$

By applying z-score formula we got that if a reporter determines a mean order time of 63 minutes then value o Z is 1.19

To learn more about standard deviation visit :brainly.com/question/12402189

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2 years ago

What expression is equivalent to 7sqrtx^2/5sqrty^3​

What expression is equivalent to 7sqrtx^2/5sqrty^3