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san4es73 [151]
2 years ago
5

Help on this question ​

Mathematics
1 answer:
Sav [38]2 years ago
3 0

Answer:

y = 3

Step-by-step explanation:

PQ(5 - 12;-10 + 2) => PQ(-7;-8)

RS(8; y - 10)

because PQ⊥RS

=> (-7).8 - 8(y - 10) = 0

<=> y - 10 = -7

<=> y = 3

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I need to know this ASAP
sashaice [31]

Answer:


Problem 1

x=2

y=3

Problem 2

x=-3

y=8


Goodluck :)

3 0
3 years ago
Equivalent ratios 78:100 to 39:50
Ne4ueva [31]
Well, they are equivalent, but I'm not sure if that's exactly what you're asking. :)
3 0
2 years ago
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Feliz [49]

Answer:

what's your question I can't understand

5 0
3 years ago
Read 2 more answers
An albatross can fly 400 kilometers in 8 hours at a constant speed using d as distance and t as number of hours. An equation tha
kow [346]

Answer:

Constant of Proportionality is 50.  

Step-by-step explanation:

Albatross can fly 400 kilometers in 8 hours.

'd' represents the distance and 't' represents the number of hours.

The equation d=50t represents the relationship between the distance and time.

Now, in the equation shown above 50 is the constant of proportionality, and 50 represents the rate of change of distance with time.

The constant of proportionality tells us the rate of change between two variables.

So for every 1 hour of time the distance covered is 50 kilometers.  

 

4 0
3 years ago
Graph the relation shown in the table. Is the relation a function? Why or why not?
Bogdan [553]
Answer: choice B) yes; only one range value exists for each domain value

---------------------------------
---------------------------------
Explanation:

The inputs are x = -3, x = -1, x = 1, x = 5. They are the first coordinate listed of each point. We don't have any x values repeating so this means we have a function. Each input leads to exactly one output which is what choice B is stating. The domain is the set of allowed inputs, or x values. The range is the set of possible y outputs. 

If we had something like (1,2) and (1,5) then the input x = 1 leads to more than one output (y = 2 and y = 5). This example means we don't have a function

If you graph the points (-3, -2), (-1,0), (1,0) and (5,-2) as shown in the attached image, then you'll notice that it is impossible to pass a single line through more than one point. Therefore this graph passes the vertical line test visually proving we have a function. 

Going back to the example with (1,2) and (1,5), plotting these two points leads to the vertical line test failing implying we don't have a function.

4 0
3 years ago
Read 2 more answers
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