Would the point (3,1) be a solution to the inequality: y>-2x+5?

Mathematics

1 answer:

Verdich [7]3 years ago

8 0

Answer:

Yes,(3,1) is a solution because (3,1) is covered when you shade it in on the graph.

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If 4 is added to 8 to equal 12, how would the operation be undone

yarga [219]

Answer:

4+8=12

Step-by-step explanation:

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2 years ago

An element with mass 130 grams decays by 22% per minute. How much of the element is remaining after 7 minutes, to the nearest 10

shepuryov [24]

22.8 grams of element will be remaining after 7 minutes

Further explanation:

Given

$Mass\ of\ element=130g\\Percentage\ of\ reduction=22\%$

The element reduces (1-22%) in one minute.

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If we have to calculate the amount of element after 7 minutes

then the total reduction will be: (1-22%)^7

$Remaining\ amount=130*(1-22\%)^7\\=130*(1-0.22)^7\\=130*(0.78)^7\\=130*0.18\\=22.84g\\Rounding\ off\ to\ nearest\ tenth\\=22.8g$

22.8 grams of element will be remaining after 7 minutes

Keywords: Decay, Percentage

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3 years ago

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Serga [27]

The range of the function is C.

When a questions asks about the RANGE of the function, they are specifically talking about Y-VALUES. If a questions asks about DOMAIN, they want the X-VALUES.

This is a quadratic function.

A and B could be eliminated right away since range asks for y-values, not x-values.

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3 years ago

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maksim [4K]

Answer:

12x9= 124

Step-by-step explanation:

if you multply it right

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Julia is going for a walk through the neighborhood. What unit of measure is most appropriate to describe the distance she walks?