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3 years ago

Free Points!!! (25pts)

Mathematics

2 answers:

IgorC [24]3 years ago

8 0

2-1=1

1x275=275

275+1=276

276/2=138

Mrrafil [7]3 years ago

6 0

Wait what about me?

2 - 1 = 1.

1 x 275 = 275.

1 + 275 = 276.

Half of 276 is 138.

276 - 138 = 138.

You have 138 fish in your new, clean tank. Have fun with your new pets! :D

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Please help i need answer for test

Korvikt [17]

Answer:

He did the complete opposite of what he needed to do

Step-by-step explanation:

The error is that when you need to find x - intercept, you need to replace the value of y with zero, not the y value.

Cause otherwise, what he did here is to find the y - intercept

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below :)

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3 years ago

9/11 of a number is 36. What is the number?

mina [271]

Answer:

Step-by-step explanation:

$\frac{9}{11} x=36$

$x=36/\frac{11}{9}\\x=\frac{36*11}{9} \\x=4*11=44$

8 0

3 years ago

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The cost of producing x units of a product is C dollars, where C is given by the function C = 0.25x2 - 80x + 30000. (See the gra

Nat2105 [25]

From calculus, to determine the maxima or minima of the graph, get the derivative of the equation and equate to zero. So, we derive first the equation of the graph and equate to zero.

C = 0.25x² - 80x + 30000
dC/dx = 0 = 0.5x - 80 + 0
0.5x = 80
x = 80/0.5
x = 160 units

The minimum cost (although not asked) is:

C = 0.25(160)² - 80(160) + 30000
C = $23,600

The answer is 160 units.

4 0

3 years ago

Find the volume of this sphere. Use 3 for TT. V ≈ [?]in³ V = πr³ 5in Entering

nydimaria [60]

Answer:

500

Step-by-step explanation:

r = 5

r³ = 125

V = (4/3)pi(r³)

pi = 3

V = (4/3)3(125)

/3 and x3 cancel

V = 4 x 125

V = 500

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2 years ago

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Nesterboy [21]

To be a function, it has to pass the vertical line test, which means a vertical line drawn anywhere in the graph should cut the graph only once, not more.

To be a one-to-one function, it has to pass the vertical line test as well as the horizontal line test, which means that a horizontal line drawn anywhere in the graph should cut the graph only once, not more.

Of course, it passes the vertical line test, so its a function.

Does it pass the horizontal line test? NO! As shown in the attached picture, the blue line (horizontal line) cuts the graph at 3 places. We therefore eliminate choices A and B. We can eliminate choice C because nowhere is it required a function to pass through the origin for it to be one-to-one. Hence, the answer is D (blue line shows this).

ANSWER: D

6 0

2 years ago

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