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adoni [48]
3 years ago
11

Which shows the following expression after the negative exponents have been eliminated? xy^-6/x^-4 y^2, x=/0 y=/0

Mathematics
2 answers:
vekshin13 years ago
7 0

It would be B, xx4  y2y6

makvit [3.9K]3 years ago
4 0
The expression would be \frac{x^5}{y^8} after the negative exponents have been removed.

A negative exponent basically tells us to "flip" the side of the fraction it's on.  This means that y⁻⁶ on the numerator would go to the denominator, and that x⁻⁴ on the denominator would go to the numerator.  This gives us:

\frac{x\times x^4}{y^2\times y^6}=\frac{x^5}{y^8}
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The height in feet of a ball dropped from a 150 ft building is given by h(t)=-16 ft^2 +150, where t is the time in seconds after
ipn [44]

Answer:

Part 1) Option A. h(2) = 86.00 means that after 2 seconds, the height of the ball is 86.00 ft

Step-by-step explanation:

we have

h(t)=-16t^{2}+150

where

t ----> is the time in seconds after the ball is dropped

h(t) ----> he height in feet of a ball dropped from a 150 ft

Find h(2)

That means ----> Is the height of the ball  2 seconds after the ball is dropped

Substitute the value of t=2 sec in the equation

h(2)=-16(2)^{2}+150=86\ ft

therefore

After 2 seconds, the height of the ball is 86.00 ft.

7 0
3 years ago
For science class, a student recorded the high and low temperatures, in Fahrenheit, over a ten day period in September. The data
Anestetic [448]
Thee correlation factor formula for two variables is 
(r) =[ nΣxy – (Σx)(Σy) / Sqrt([nΣx^2 – (Σx)^2][nΣy^2 – (Σy)^2])].

A). as per the formula the correlation factor for the given  data is 0.94.

B). the month of September has the highest correlation as 0.94 is much closer to 1 than 0.89.( note: 1 denotes the perfect correlation and 0 denotes no correlation at all)

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3 0
3 years ago
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A 20-pack of Dr. Pepper cost $5.50 and a 6-pack cost $1.50. Which is the better deal?​
Irina-Kira [14]

Answer:

Step-by-step explanation:

20-pack of Dr. Pepper cost $5.50 . As per this deal

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a 6-pack cost $1.50.As per this deal

  Cost of one pack = 1.50/6 = $ 0.25

A 6-pack cost $1.50 is the better deal.

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3 years ago
Which of the following equations have no solution? Check all that apply.
Vinil7 [7]

Answer:

A and E

Step-by-step explanation:

6 0
3 years ago
Evaluate this expression for b= 3, and a=2. b-a
almond37 [142]
Substitute the values in the expression
b-a=3-2=1
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3 years ago
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