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mamaluj [8]
3 years ago
6

What is the intersection of lines for the two equations y+3x=1 and y-6=2x?

Mathematics
1 answer:
netineya [11]3 years ago
4 0

Answer:

Step-by-step explanation:

Let's reformat both equations so that y is by itself on each side:

y = -3x + 1

y = 2x + 6

Since we y isolated to one side in both equations, we know the right-hand sides must be equal:

-3x + 1 = 2x + 6

Solving for x will give us the x-coordinate of the point of intersection:

-5x = 5

x = -1

Plugging in this x-coordinate to either of the above equations will give us the y-coordinate of the point of intersection:

y = -3(-1) + 1

y = 4

Therefore, the point of intersection is (-1, 4)

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Answer:

Angle PAB is a right angle.

Step-by-step explanation:

Angle PAB is a right angle.  In circles, tangent lines are always perpendicular to radii.

6 0
3 years ago
What is the percent of change from 56 to 22? round to the nearest percent
V125BC [204]

\textrm{percentage change} = \dfrac{\textrm{new} - \textrm{old}}{\textrm{old}} \times 100 \%


\dfrac{22 - 56}{56} \times 100\% \approx -60.7\%


Answer: -61%



3 0
3 years ago
Nick can do a certain job in 3 hours less than it takes bonnie to do the same job. If they complete the job together in 9 hours,
il63 [147K]

Answer:

Step-by-step explanation:

Let the number of hours Nick does the job alone to be x - 3 hours

Hence, in 1 hour, Nick has done 1/x - 3

Together they complete the job in 9 hours

Hence, let's represent the job as 1

9/x + 9/x - 3 = 1

Multiply through by (x)(x-3)

9(x- 3) + 9(x) = 1

9x - 27 + 9x = (x)(x-3)

-27 = x² - 3x

x² - 3x +27 = 0

4 0
2 years ago
Eight less than four times a number is less than 56.What are the possible values of that number
Gemiola [76]
We have the next inequation
8-4x<56

-4x<56-8
-4x<48
-x<48/4
-x<12
x>-12

Solution: x>-12  or  (-12,+∞)
4 0
3 years ago
Two polygons are similar with the longest side of one 8 and the longest side of the other 10. Find the ratio of the areas.
liubo4ka [24]
<span>The ratio of sides is, 8:10 = 4:5
squaring it yields, 16:25 
the ratio of the area is 16:25

</span>
7 0
3 years ago
Read 2 more answers
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