3 years ago

HELP HURRY !! is the graph a function ?

Mathematics

1 answer:

quester [9]3 years ago

4 0

Answer:

Yes.

Step-by-step explanation:

If you use the vertical line test, you'll see that the line only touches the graph at one point.

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Where can we put parentheses in 19 - 3 times 5 to make it equivalent to 80

notsponge [240]

Answer:

(19-3)*5 = 80

Step-by-step explanation:

(19-3)*5 = 80

Parentheses first

16*5 = 80

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3 years ago

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An equilateral triangle has a perimeter of 15x + 33x feet. What is the length of each side?

Zinaida [17]

Answer:

is there any mistake in your question?

Step-by-step explanation:

(15x + 33x) / 3 = 5x + 11x = 16x

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3 years ago

An arrow is shot vertically upward from a platform 16ft high at a rate of 190ft/sec. When will the arrow hit the ground? Use the

Contact [7]

H(t) = -16t2 + 186t + 43

at the ground h = 0

hence; -16t2 + 186t + 43 = 0

solving this quadratic equation using the quadratic formula ; a = -16, b = 186, c = 43 ; x = (-b +-(b2 - 4ac)1/2)/2a

gives t = 11.8 seconds to the nearest tenth (note that the negative root has no practical significance)

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3 years ago

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A service station charges $251 for four new tires and installation. If the installation portion of the bill is $84, what is the

ohaa [14]

The answer is $41.75. Subtract $84 from $251 and you get $167. There are 4 tires, so divide by 4 for the price of each individual one, and get $41.75. Hope this helps!! Good luck for your future in school!

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3 years ago

If the following data were linearized using logarithms, what would be the equation of the regression line? Round the slope and y

Elis [28]

Answer:

log y = 0.576x + 0.139

Step-by-step explanation:

Given data:

x | 2 | 3 | 4 | 5 | 6
y | 21 | 69 | 261 | 1029 | 4101

Logarithms of y-values:

log 21 = 1.322
log 69 = 1.839
log 261 = 2.417
log 1029 = 3.012
log 4101 = 3.613

The ordered pairs:

(2, 1.322), (3, 1.839), (4, 2.417), (5,3.012), (6, 3.613)

Using an online calculator found the equation of the regression line:

y = 0.576x + 0.139

In our case it is:

log y = 0.576x + 0.139

7 0

3 years ago