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vovikov84 [41]
3 years ago
13

Which expression is equivalent to (x Superscript one-half Baseline y Superscript negative one-fourth Baseline z) Superscript neg

ative 2? StartFraction x Superscript one-half baseline Over y z squared EndFraction StartFraction x Superscript one-half baseline Over y Superscript one-fourth Baseline z squared EndFraction StartFraction y Superscript one-half Baseline Over x z squared EndFraction
Mathematics
1 answer:
lana66690 [7]3 years ago
8 0

Answer:

\frac{x^{\frac{1}{2}}}{y^{\frac{1}{4}}z^2}

Step-by-step explanation:

Given

x^{\frac{1}{2}}y^{-\frac{1}{4}}z^{-2}

Required

Find the equivalent

To find the equivalent of the given expression; we have to apply laws of indices;

As a law;

a^{-m} = \frac{1}{a^m}

So; the expression x^{\frac{1}{2}}y^{-\frac{1}{4}}z^{-2} becomes

x^{\frac{1}{2}}*\frac{1}{y^{\frac{1}{4}}}*\frac{1}{z^2}

This is further simplified to

x^{\frac{1}{2}}*\frac{1}{y^{\frac{1}{4}} * z^2}

x^{\frac{1}{2}}*\frac{1}{y^{\frac{1}{4}}z^2}

Combine to form a single fraction

\frac{x^{\frac{1}{2}}*1}{y^{\frac{1}{4}}z^2}

Multiply numerator

\frac{x^{\frac{1}{2}}}{y^{\frac{1}{4}}z^2}

The expression can not be further simplified

Hence x^{\frac{1}{2}}y^{-\frac{1}{4}}z^{-2} is equivalent to \frac{x^{\frac{1}{2}}}{y^{\frac{1}{4}}z^2}

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zhannawk [14.2K]

Answer:

Step-by-step explanation:

Expected payment= 0.000514*55000= 28.27

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6 0
3 years ago
Which equation represents a parabola that opens upward, has a minimum at x = 3, and has a line of symmetry at x = 3?
densk [106]

Answer:

A.\ y = x^2 - 6x + 13 is the correct answer.

Step-by-step explanation:

We know that vertex equation of a parabola is given as:

y = a(x-h)^2+k

where (h,k) is the vertex of the parabola and

(x,y) are the coordinate of points on parabola.

As per the question statement:

The parabola opens upwards that means coefficient of x^{2} is positive.

Let a = +1

Minimum of parabola is at x = 3.

The vertex is at the minimum point of a parabola that opens upwards.

\therefore h = 3

Putting value of a and h in the equation:

y = 1(x-3)^2+k\\\Rightarrow y = (x-3)^2+k\\\Rightarrow y = x^2-6x+9+k

Formula used: (a-b)^2=a^{2} +b^{2} -2\times a \times b

Comparing the equation formulated above with the options given we can observe that the equation formulated above is most similar to option A.

Comparing y = x^2 - 6x + 13 and y = x^2-6x+9+k

13 = 9+k

k = 4

Please refer to the graph attached.

Hence, correct option is A.\ y = x^2 - 6x + 13

3 0
3 years ago
Read 2 more answers
When each side of an equation has been simplified, equations that have BLANK coefficients and BLANK constants on each side have
kobusy [5.1K]

Answer:

The answer is below

Step-by-step explanation:

An equation shows the relationship between two or more variables. An equation is a statement that shows the equality between expressions. An equation with infinitely many solution is when all numbers are solutions, that is there is no one solution. Example is: x + 3 = x + 3.

When each side of an equation has been simplified, equations that have the same coefficients and the same constants on each side have infinitely many solutions

7 0
3 years ago
Given that x overbarequals3.6667​, s Subscript xequals2.0656​, y overbarequals4.2167​, s Subscript yequals1.5613​, and requalsne
Shtirlitz [24]

Answer:

y = 0.7063x+2.7790

Step-by-step explanation:

Given that

x bar = 3.6667\\s_x= 2.0656\\y bar = 4.2167\\s_7 = 1.5613\\r = -0.9344

We have slope of linear regression line is

a=r*\frac{s_y}{s_x} =0.9344(\frac{1.5613}{2.0656} )\\=0.7063

So regression line would be of the form

y-4.2167 = 0.7063(x-2.0656) (since it passes through xbar, y bar)

y = 0.7063x+2.7790

is the equation of regression line.

6 0
3 years ago
If A = -3n + 2, and B = 5n - 7, what is the value of A + B, in simplest form?
Sever21 [200]

Answer:

I think the answer is 2n-5

(-3n + 2)+(5n - 7)

-3n+5n=2n

2+(-7)=-5

4 0
3 years ago
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