1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
chubhunter [2.5K]
3 years ago
6

What is the equation of the line that has a gradient of 3 and passes through the point (-1,3)

Mathematics
1 answer:
Alexus [3.1K]3 years ago
8 0

Answer:

d

Step-by-step explanation:

You might be interested in
Given the points A(-10, -4) and B(14, 4), find the coordinates of the point P on the directed line segment AB that partitions AB
anastassius [24]

Answer:

P(5, 1)

Step-by-step explanation:

Segment AB is to be partitioned in a ratio of 5:3. That means the ratio of the lengths of AP to PB is 5:3. We need to find the ratio of the lengths of AP to AB.

AP/PB = 5/3

By algebra:

PB/AP = 3/5

By a rule of proportions:

(PB + AP)/AP = (3 + 5)/5

PB + AP = AP + PB = AB

AB/AP = 8/5

AP/AB = 5/8

The first part of the segment is 5/8 of the length of the segment, and the second part of the segment has length of 3/8 of the length of segment AB.

Point P is located 5/8 of the distance from point A to point B. The x-coordinate of point P is 5/8 of the difference in x-coordinates added to the x-coordinate of point A. The y-coordinate of point P is 5/8 of the difference in y-coordinates added to the y-coordinate of point A.

x-coordinate:

difference in coordinates: |14 - (-10)| = |14 + 10| = 24

5/8 of 24 = 5/8 * 24 = 15

Add 15 to the x-coordinate of point A: -10 + 15 = 5

x-coordinate of point P: 5

y-coordinate:

difference in coordinates: |4 - (-4)| = |4 + 4| = 8

5/8 of 8 = 5/8 * 8 = 5

Add 5 to the y-coordinate of point A: -4 + 5 = 1

y-coordinate of point P: 1

Answer: P(5, 1)

3 0
3 years ago
If a seed is planted, it has a 95% chance of growing into a healthy plant. If 7 seeds are planted, what is the probability that
denpristay [2]

Answer:

\frac{51998079}{1280000000} or around 0.0406

Step-by-step explanation:

We need to choose 2 seeds that will not grow - there's

7 * 6 / 2 = 21 possibilities (choose one, chose second one, divide by 2 because each choice was counted twice).

The probability of each of those possibilities happening is:

(5\%)^2 * (95\%)^5 = \frac{2476099}{1280000000}

because two need to fail to grow and the rest need to grow properly.

The full probability is

\frac{51998079}{1280000000}

7 0
3 years ago
Please help!!
weqwewe [10]

Answer:

 The vertex of the parabola   = (-7 , -4)  

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that the parabola  y = 4 x² + 56 x +192

                                 y = 4 (x² + 14 x + 48 )

                                 y = 4 ( x² + 2 ×  7 (x) + 49-1)

                                 y = 4 ( x² + 2 ×  7 (x) + 49)- 4

we apply the formula

(a +b)² = a² + 2ab + b²

                                y = 4 ( x + 7 )² - 4

<u>Step(ii):-</u>

<em>The general form of the parabola in algebraically</em>

<em>                               y = a ( x-h)² +k</em>

<em>The equation </em>

<em>                           y = 4 ( x + 7 )² - 4</em>

                          y = 4 ( x-(-7))² - 4

  The vertex of the parabola (h,k) = (-7 , -4)  

<u>Final answer:-</u>

The vertex of the parabola  = (-7 , -4)  

8 0
3 years ago
The length of one side of a square city block is 462 meters. what is the perimeter of the block
trapecia [35]
The perimeter of any shape is just what you get when you add up all of the side lengths. We know that one side is 462 meters, and since a square has four equal sides, we can just mulitply 462 × 4 to get our perimeter, 1,848 meters.
3 0
3 years ago
A convex hexagon has exterior angles of 39°, 47°, 42°, 59°, and 64°. What is the measure of an exterior angle at the
meriva

Answer: 109^{\circ}

Step-by-step explanation:

The exterior angles of a polygon add to 360 degrees, so the sixth angle measures 360-39-47-42-59-64=\boxed{109^{\circ}}

7 0
2 years ago
Other questions:
  • Name two integers whose product is negative.
    12·1 answer
  • What's the missing angle?
    6·2 answers
  • In a recent survey, 18 people preferred milk, 29 people preferred coffee, and 13 people preferred juice as their primary drink f
    12·1 answer
  • Solve the system of linear equations by substitution.<br><br> 4x−2y=14<br> y=0.5x−1
    13·1 answer
  • Help por favor and ill love you forever &lt;33
    15·2 answers
  • At cathys cafe you pay $0.33 as food tax, and you pay a total of 11.18. what percent is your tax?
    14·1 answer
  • Which number is a perfect cube?<br> A. 8<br> B. 9<br> C. 16<br> D. 25
    9·2 answers
  • The equation p = −5x2 + 100x − 250 models the profit p in dollars from selling pizza, where x is the price per pizza in dollars.
    11·1 answer
  • -9x-3y=-18 -3x+y=4 solve the system of equation
    12·1 answer
  • BRAINLIEST?<br><br> Graph the line whose y-intercept is 9 and whose x-intercept is -2.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!