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cupoosta [38]
3 years ago
14

Which choices are equivalent to the expression below check all that apply √-25 please help.

Mathematics
2 answers:
nadezda [96]3 years ago
7 0
B and D
Hope this helps
klio [65]3 years ago
6 0

Answer: A and B

Ape x

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Suppose that a company claims that its air fresheners last 23 days, on
pashok25 [27]

Answer:

95 - 23 = 17

Step-by-step explanation:

This is the answer because it is subtracted so that you get the answer

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3 years ago
The function y=40x describes how far from home Shu Ling is as she drives from Dallas to Miami. Graph the function. Use the graph
oksano4ka [1.4K]

Answer:

You can see the graph below.

To answer the question, you need to draw a vertical line from x = 12h up, until the line meets with the line.

Once the line meets with the line, draw a horizontal line from that point, and the value where this line intersects with the y-axis will be the distance from home after 12 hours.

The graph is kinda hard to read because the line is really steep, the green line is the equation y = 40*x

the red line is a line at x = 12

The black dashed line is the horizontal line that intersects with the y-axis.

In the graph, you can see that the dashed line intersects the y-axis at around y = 475.

Then a good estimate is that the distance after 12 hours is 475 (miles).

Now, we can compare this with the direct calculation, just replace x by 12 in the given line:

y = 40*12 = 480.

So our estimation is really accurate.

6 0
3 years ago
Nick and his cousin Sarah have the same birthday but Nick is 4 years older than cigarettes the variables that represents next ag
ad-work [718]

x = Nick's age                    y = Sara's age

Nick is 8 years older than Sara, therefore

y = x - 8


3 0
3 years ago
A 40% antifreeze solution is to be mixed with a 70% antifreeze
Alenkasestr [34]

Answer: 160 liters of the

40% solution and 80 liters of the 70% solution will be used.

Step-by-step explanation:

Let x represent the number of liters of 40% antifreeze solution that should be used.

Let y represent the number of liters of 70% antifreeze solution that should be used.

The volume of the mixture to be mixed is 240 liters. It means that

x + y = 240

The 40% antifreeze solution is to be mixed with a 70% antifreeze

solution to get 240 liters of a 50% solution. This means that

0.4x + 0.7y = 0.5(240)

0.4x + 0.7y = 120 - - - - - - - - - - - -1

Substituting x = 240 - y into equation 1, it becomes

0.4(240 - y) + 0.7y = 120

96 - 0.4y + 0.7y = 120

- 0.4y + 0.7y = 120 - 96

0.3y = 24

y = 24/0.3

y = 80

x = 240 - y = 240 - 80

x = 160

7 0
3 years ago
Find the value of each variable. Write your answers in simplest radical form.
Vladimir79 [104]
1/2 by 3 equal 5 /1 so yea it’s easy that’s rights
4 0
3 years ago
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