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baherus [9]
2 years ago
11

A person has 2 pieces of string. The first piece is 3 inches long and the second one is 3 times as long. What is the length of t

he second piece, in centimeters, given that 1 inch =2.54 cm?​
Mathematics
1 answer:
Arisa [49]2 years ago
3 0
John just nejsjwjsjwjwjw
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Assuming a linear relationship between x and y, if the coefficient of correlation (r) equals -0.75, this means that:
Gelneren [198K]

Since we are given that the relationship between x and y is linear. Therefore this means that the given equation takes the form of:

y = m x + b

where,

b is the y intercept of the equation

m is the slope of the equation

 

However we should take note that the slope m is directly proportional to the coefficient of correlation. Since our coefficient of correlation is negative, this only means that the value of y is decreasing with increasing x, hence plot of y and x is descending with increasing x. Furthermore, this also tells that for every 1 unit increase of x, there is a 0.75 units decrease of y.

6 0
3 years ago
Identify the coefficient and the exponent for each term of 8x ^ 4 - 2x
velikii [3]

Step-by-step explanation:

Given binomial is: 8x^4 - 2x

in \: the \: term \: 8 {x}^{4}  \\ coefficient = 8 \\ exponent = 4 \\ \\  in \: the \: term \:  - 2x  \\ coefficient =  - 2 \\ exponent = 1

4 0
2 years ago
A machine can produce 6yards of fabric in 2 minutes. How much fabric can the machine produce in 1 hour?
Alex17521 [72]

Answer:

180

Step-by-step explanation:

2 times 30 equals 60 which is an hour so 6 times 30 equals 180.

5 0
2 years ago
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What is <br> -4р - 2r - 15р
nordsb [41]

Answer:

THE ANSWER IS -21

Step-by-step explanation: BECAUSE IF YOU TAKE -4P -15P=-19P

-19P-2R=-21

8 0
2 years ago
Which expression is equivalent to x y Superscript two-ninths?
crimeas [40]

Option D: x\sqrt[9]{y^2} is the expression equivalent to xy^{\frac{2}{9}}

Explanation:

Option A: \sqrt{xy^9}

The expression can be written as ({xy^9})^{\frac{1}{2}

Applying exponent rule, we get,

x^{\frac{1}{2}} y^{\frac{9}{2}}

Thus, the expression \sqrt{xy^9} is not equivalent to the expression xy^{\frac{2}{9}}

Hence, Option A is not the correct answer.

Option B: \sqrt[9]{xy^2}

The expression can be written as ({xy^2})^{\frac{1}{9}

Applying exponent rule, we get,

x^{\frac{1}{9}} y^{\frac{2}{9}}

Thus, the expression \sqrt[9]{xy^2} is not equivalent to the expression xy^{\frac{2}{9}}

Hence, Option B is not the correct answer.

Option C: x\sqrt{y^9}

The expression can be written as x(y^9)^{\frac{1}{2} }

Applying exponent rule, we get,

x y^{\frac{9}{2}}

Thus, the expression x\sqrt{y^9} is not equivalent to the expression xy^{\frac{2}{9}}

Hence, Option C is not the correct answer.

Option D: x\sqrt[9]{y^{2} }

The expression can be written as x(y^2)^{\frac{1}{9} }

Applying exponent rule, we get,

xy^{\frac{2}{9}}

Thus, the expression xy^{\frac{2}{9}} is equivalent to the expression xy^{\frac{2}{9}}

Hence, Option D is the correct answer.

4 0
3 years ago
Read 2 more answers
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