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
Aleks [24]
3 years ago
10

PLEASE HELP! I WILL GIVE BRAINLIEST!!!! (no trolls) PLEASE SHOW WORK OR GIVE EXPLANATION!!!!!!

Mathematics
2 answers:
IgorLugansk [536]3 years ago
8 0

explanation:

The fastest way to find the missing endpoint is to determine the distance from the known endpoint to the midpoint and then performing the same transformation on the midpoint.  In this case, the x-coordinate moves from 4 to 2, or down by 2, so the new x-coordinate must be 2-2 = 0.  The y-coordinate moves from 4 to -5, or down by 9, so the new y-coordinate must be -5-9 = -14.

 

An alternate solution would be to substitute (4,4) for (x1,y1) and (2,-5) for (x,y) into the midpoint formula:

x=(x1+x2)/2

y=(y1+y2)/2

Solving each equation for (x2,y2) yields the solution (0,-14).

please mark me as brainliest

Rina8888 [55]3 years ago
6 0

Answer:

b = 6

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

3x + y - 8 = 0 ( subtract 3x - 8 from both sides )

y = - 3x + 8 ← in slope- intercept form

with slope m = - 3

Given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{-3} = \frac{1}{3}

Consider the second line with equation

- 2x + by + 9 = 0 ← rearrange into slop- intercept form

by = 2x - 9 ( divide terms by b ( b ≠ 0 )

y = \frac{2}{b} x - \frac{9}{b} ← in slope- intercept form

with slope m = \frac{2}{b}

Then

\frac{2}{b} = \frac{1}{3} ( cross- multiply )

b = 6

You might be interested in
Please help, brainliest, thanks, five star
AnnZ [28]

Answer:

<u>2(3x + 4)</u>

Step-by-step explanation:

2 x 3x = 6x and 2 x 4 = 8

7 0
2 years ago
Simplify the Expression. Clear explanation of monomials appreciated - Thanks!
Nataly [62]
I think the answer is .4m^7n^8

Uhh I don’t know how to give it a clear explanation but all I did was multiply them

-0.8•-0.5= .4

M^2•m^5=m^7

n•n^7=n^8

Hope this helps some.
7 0
3 years ago
Lin's family has complete 70% of a trip. They have traveled 35 miles how far is the trip
Bogdan [553]

Answer  

50 miles:) I'm positive  but there may be a chance it's 200

4 0
3 years ago
1) Let f(x)=ax2+bx+c for some value of a, b and c. f intersects the x-axis when x=−2 or x=3, and f( 1 3 )=−25. Find the values o
antiseptic1488 [7]

Answer:

1) a = -⅙, b = ⅙, c = 1

2) 6 units

Step-by-step explanation:

1) f(x) = ax² + bx + c

Given the roots, we can write this as:

f(x) = a (x + 2) (x − 3)

We know that f(13) = -25, so we can plug this in to find a:

-25 = a (13 + 2) (13 − 3)

-25 = 150a

a = -⅙

Therefore, the factored form is:

f(x) = -⅙ (x + 2) (x − 3)

Distributing:

f(x) = -⅙ (x² − x − 6)

f(x) = -⅙ x² + ⅙ x + 1

Graph: desmos.com/calculator/6m6tjoodvb

2) Volume of a right prism is area of the base times the height.

V = Ah

The base is an equilateral triangle.  Area of a triangle is one half the base times height.

V = ½ ab h

The height of the triangle is the same as the height of the prism.

V = ½ bh²

In an equilateral triangle, the height is equal to half the base times the square root of 3.

V = ½ b (½√3 b)²

V = ⅜ b³

Given that V = 81, solve for b.

81 = ⅜ b³

216 = b³

b = 6

5 0
3 years ago
If it is 5 miles to the nearest store, and my dad walks 4 mp/h, why has it taken him 14 years to come back?
VladimirAG [237]
That's a tough one maybe he's gone to get milk Orr he's probably lost on Antarctica
5 0
2 years ago
Other questions:
  • Please HELP!! <br><br> WILL AWARD BRAINLEST
    11·2 answers
  • How do i solve this equation?​
    12·1 answer
  • The diagram shows a solid formed by joining a hemisphere, of radius rcm, to a cylinder, of radius rcm and height hcm. The total
    9·1 answer
  • -1/-2*9*3/7what is -1 / -2 * 9 * 3/7
    11·2 answers
  • What is the volume of a rectangular solid with a length of 12, a width of 3, and a height of 4?
    12·2 answers
  • In the chemical formula 2SO2, how many total atoms of oxygen (O) are there?​
    9·2 answers
  • 4 students is ______ % of 20 students
    12·1 answer
  • Suppose that 28% of domestic adoptions are transracial, and that 84% of international adoptions are
    6·2 answers
  • Help! I don't understand this! Please respond ASAP
    7·1 answer
  • Jocelyn purchased a new car in 2000 for $16, 100. The value of the car has
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!