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lorasvet [3.4K]
3 years ago
12

In fiecare dintre cele trei clase de aVa ale unei scoli sunt 30 de elevi.Din toți elevii de-a Va ,o treime fac fotbal,1 dansuri,

2 înot,1
10. 5. 9
Baschet,iar restul nu practica niciun sport.Cați elevi nu fac sport?
Mathematics
1 answer:
Alenkasestr [34]3 years ago
6 0
I can't understand it can you explain it in English
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A line that passes through (-1, 6) and the origin
zmey [24]

Answer: The equation is y = -6*x

Step-by-step explanation:

I suppose that we want to find the equation for a line that passes through the point (-1, 6) and the origin (remember that the origin is the point (0,0))

A general linear equation is written as:

y = a*x + b

Where a is the slope and b is the y-intercept.

If this line passes through the points (x₁, y₁) and (x₂, y₂), then the slope of the line is equal to:

a = (y₂ - y₁)/(x₂ - x₁)

Now we know that our line passes through the points (0, 0) and (-1, 6), then the slope is:

a = (6 - 0)/(-1 - 0) = 6/-1 = -6

Then our equation is something like:

y = -6*x + b

To find the value of b we can use the fact that this line passes through the point (0, 0).

This means that when x = 0, y is also equal to zero.

If we replace these values in the equation we get:

0 = -6*0 + b

0 = b

Then our equation is:

y = -6*x

7 0
3 years ago
For right triangle PQR what is the measure of PQ to the nearest hundredth of a centimeter?<br>​
antoniya [11.8K]
Angle PQR=90 degrees.
cos 52=PQ/14.72
PQ=14.72 x (cos 52)
PQ= 9 cm to the nearest cm
6 0
3 years ago
Read 2 more answers
A line passes through the two given points. Is it vertical, horizontal,or neither?<br>(8,3), (8,-4)​
Katena32 [7]

Answer:

horizontal.

Step-by-step explanation:

it goes straight up

5 0
3 years ago
To edit a manuscript, Miguel charges 12 dollars per hour for the first 4 hours and 15 dollars per hour after the first 4 hours.
aleksley [76]

Answer:

C = 12 + 15(x - 4)

C = 15x - 48

Step-by-step explanation:

Let the number of hours = t

The total amount Miguel earns =

C

To edit a manuscript, Miguel charges 12 dollars per hour for the first 4 hours and 15 dollars per hour after the first 4 hours.

C = 12 + 15(x - 4)

Expand the t

C = 12 + 15x - 60

C = 15x - 48

Therefore, an expression for the amount, in dollars, Miguel charges if it takes him t hours to edit a manuscript, where t>4 is given as:

C = 15x - 48

5 0
3 years ago
Ask a 1 grade question and my brother will answer it
Sliva [168]
10 +10 good luck have fun
7 0
3 years ago
Read 2 more answers
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