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4 years ago

Perform the indicated operation.

Mathematics

2 answers:

LenKa [72]4 years ago

8 0

This should be your answer i hope this helps

makkiz [27]4 years ago

4 0

Answer:

X²/Z²

Step-by-step explanation:

((Xy+xz)/(xz-z²) )*((xy-yz)/(xz+yz))/((y²+yz)/(x²+xy))

= ((Xy+xz)/(xz-z²) )*(y/z(x-z)/(x+y) * x/y(x+y)/(y+z)

= ((Xy+xz)/(xz-z²) )*(x/z(x-z)/(y+z))

= (X/z(y+z)/(x-z)) * (x/z(x-z)/(y+z))

= X²/Z²

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scZoUnD [109]

Answer:

Ari's bag is 1.9 pounds heavier than Juan's bag

Step-by-step explanation:

Juan’s bag of apples weigh 31/7 pounds.

$\dfrac{31}{7}=\dfrac{31\times 3}{7\times 3} =\dfrac{93}{21}$

Ari’s bag of oranges weigh 19/3 pounds.

$\dfrac{19}{3}=\dfrac{19\times 7}{3\times 7}=\dfrac{133}{21}$

$\dfrac{133}{21}-\dfrac{93}{21}\\ \\=\dfrac{40}{21}$

Hence, Ari's bag is 40/21 pounds heavier than Juan's bag

i.e. Ari's bag is 1.9 pounds heavier than Juan's bag

6 0

3 years ago

Read 2 more answers

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pentagon [3]

Answer:

D) 2x - 7 = 13

Step-by-step explanation:

You can tell it is an equation because it has an equal sign and it either adds, subtracts. multiplies, or divides.

8 0

3 years ago

g Are the following statements true or false? 1. Any linear combination of vectors can always be written in the form Ax for a su

NISA [10]

Answer:

The statement is true that any linear combination of vectors can always be written in the form Ax for suitable matrix A and vector x.

Step-by-step explanation:

Let

a1x1 + a2x2 + a3x3 + ... + anxn = d1

b1x1 + b2x2 + b3x3 + ... + bnxn = d2

c1x1 + c2x2 + c3x3 + ... + cnxn = dn

be a linear system, and let

[a1 a2 a3 ... an][x1] = [d1]

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[. . . .

[c1 c2 c3 ... cn][xn] [dn]

be the augmented matrix of the linear system. The augmented matrix can be represented as Ax = d

Where A is the matrix of (a1, a2,...., an), x is (x1, x2, x3, ..., xn), and d = (d1, d2, d3,..., dn) .

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4 years ago

A statistician wants to determine the relationship between typing speed, in words per minute, and the time, in minutes, it takes

wlad13 [49]

The way that the correlation will be affected if the units are changed from minutes to seconds is that the correlation will still be the same.

<h3>What is correlation?</h3>

Correlation simply means a statistical measure which expresses the extent to which two variables are linearly related.

From the information, it was stated that twenty-five trials are completed and the correlation coefficient between typing speed and time is determined to be -0.622.

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Learn more about correlation on:

brainly.com/question/4219149

5 0

3 years ago

Help pleaseee <br> Please answer correctly with a reason

Evgesh-ka [11]

It’s non-linear and it’s increasing.

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3 years ago