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Natasha2012 [34]
3 years ago
12

Write the equation of the line that passes through the points (-3, -3) and (8,7).

Mathematics
1 answer:
Verizon [17]3 years ago
3 0

Answer:

y + 3 = 10/11(x + 3)

Step-by-step explanation:

Given the points (-3, -3) and (8, 7), we can use these coordinates to solve for the slope of the line using the formula:

m = \frac{y2 - y1}{x2 - x1}

Let (x1, y1) = (-3, -3)

(x2, y2) = (8, 7)

Substitute these values into the slope formula:

m = \frac{y2 - y1}{x2 - x1} = \frac{7 - (-3)}{8 - (-3)} = \frac{10}{11}

Thus, slope (m) = 10/11.

Next, using the slope (m) = 10/11, and one of the given points (-3, -3), we'll substitute these values into the point-slope form:

y - y1 = m(x - x1)

Let (x1, y1) = (-3, -3)

m = 10/11

y - y1 = m(x - x1)

y - (-3) = 10/11[x - (-3)]

Simplify:

y + 3 = 10/11(x + 3) this is the point-slope form.

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Amy and Betty run in opposite directions on a circular track, starting at diametrically opposite points. They first meet after A
madam [21]

Answer:

420 meters

Step-by-step explanation:

The first thing we must do is understand the exercise, the first thing is that they go in opposite directions, one goes clockwise and the other goes counter-clockwise.

We can interpret that one is in the "beginning" of the track and the other is in the "middle". Let's say that the length of the track is "x"

Now, their first meeting is when Amy has traveled 120 meters, which means that how Betty is in the middle would be x/2 - 120, which she traveled. We are told that Betty traveled 180 meters after that meeting point which means, how did she start "beginning" but that beginning can also be seen as the end, that is, distance x, traveled x - 180.

We can do the following proportion:

\frac{120}{x-180}=\frac{\frac{x}{2}-120}{180}

120*180 = (x/2 -120)*(x-180)

in resolving:

x^2-420*x+43200=43200

x^2 -420*x = 0

x*(x -420)=0

x - 420 = 0

x = 420

Therefore the circular track has a length of 420 meters

8 0
3 years ago
The ratio of the same side interior angles of two parallel lines is 33:3. Find the measures of all eight angles formed by the pa
zheka24 [161]

9514 1404 393

Answer:

  all 4 acute angles: 15 degrees

  all 4 obtuse angles: 165 degrees

Step-by-step explanation:

The sum of same-side interior angles between parallel lines is 180°. The smallest of them will be 3/(33+3) = 1/12 of 180°, or 15°. The largest will be 180° -15° = (33/3)(15°) = 165°. All remaining angles are congruent to one or the other of these.

  All four acute angles are 15°; all four obtuse angles are 165°.

4 0
3 years ago
-3(x - 1) + 9 = 15 find the varible
stira [4]

Answer:

x = -1

Step-by-step explanation:

-3(x-1) + 9 = 15

-3x + 3 + 9 = 15

-3x = 3

x = -1

3 0
3 years ago
Read 2 more answers
4/1 = 12/3 so 12 cups =_____ quarts
riadik2000 [5.3K]

Answer:

3 quarts

Step-by-step explanation:

4/1 = 12/3 so 12 cups =3 quarts

6 0
3 years ago
In a chest there are some gold coins. Captain takes half the coins. Sally takes a quarter of the coins. There are 3 coins left.
amid [387]

Answer:

<u>There were 12 gold coins in the chest at the start.</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

x = Number of gold coins in a chest

1/2x = Number of gold coins taken by the captain

1/4x = Number of gold coins taken by Sally

3 = Number of gold coins left

2. How many coins were in the chest at the start?

Let's write the following equation to solve for x:

1/2x + 1/4x + 3 = x

2x + x + 12 = 4x (Lowest Common Denominator is 4)

4x - 2x - x = 12 (Like terms)

x = 12

<u>There were 12 gold coins in the chest at the start.</u>

3 0
4 years ago
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