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
Lilit [14]
3 years ago
7

Please help me ASAP!!

Mathematics
1 answer:
choli [55]3 years ago
8 0

Answer:

r = -4

Step-by-step explanation:

If M is the midpoint of DE, that would mean that the distance from M to D and M to E would be the same.

This creates the equation 1-8r=13-5r.

Now it's just simple algebra.

You add 8r to both sides, creating 1=13+3r. Then, you subtract 13 from both sides, getting 3r=-12. Dividing both sides by 3 and solving for r, you get r=-4.

Checking our answer, you see that 1-8(-4)=1-(-32)=1+32=33, and 13-5(-4)=13-(-20)=13+20=33.

You might be interested in
Miya plans to visit her sister over the summer. On a map, her house is 2 inches from her sister’s house. If the map uses a scale
Sophie [7]

Answer:

72 miles

Step-by-step explanation:

18x2x2

8 0
3 years ago
A quadrilateral has vertices a(-4 -8) b (-2, 34) c(6,12 and d (10, -30). It undergoes the transformation (x,y) to (x/2,y/2).
worty [1.4K]

Answer:

Step-by-step explanation:

scale factor:

1/2

the coordinates of the new vertices are

A (-4/2, -8/2)

A:(-2, -4)

B (-2/2, 34/2)

B: (-1, 17)

C (6/2, 12/2)

C:(3, 6)

D (10/2, -30/2)

D:(5, -15)

I guess the dilation is 2 times bigger?

4 0
3 years ago
Which ordered pairs are solutions to the inequality y - 3x < -8?
7nadin3 [17]

Answer:

Option B,C and E are solution to given inequality y - 3x < -8

Step-by-step explanation:

We need to check which ordered pairs from given options satisfy the inequality y - 3x < -8

Ordered pairs are solutions to inequality if they satisfy the inequality

Checking each options by pitting values of x and y in given inequality

A ) (1, -5)

-5-3(1)

So, this ordered pair is not the solution of inequality as it doesn't satisfy the inequality.

B) (-3, - 2)

-2-3(-3) < -8\\-2-9

So, this ordered pair is solution of inequality as it satisfies the inequality.

C) (0, -9)

-9-3(0)

So, this ordered pair is solution of inequality as it satisfies the inequality.

D) (2, -1)

-1-3(2)

So, this ordered pair is not the solution of inequality as it doesn't satisfy the inequality.

E) (5, 4)​​​

4-3(5)

So, this ordered pair is solution of inequality as it satisfies the inequality.

So, Option B,C and E are solution to given inequality y - 3x < -8

6 0
3 years ago
Can u explain how to do this math problem not tell me the answer<br><br>am i correct is it origin?
Alex73 [517]
Your wrong, its ordered pair
6 0
3 years ago
How far apart are the foci of an ellipse with a major axis of 34 feet and a minor axis of 16 feet?
My name is Ann [436]

The foci of an ellipse are (c,0) & (-c,0)

Where c² = a² - b²

The major axis is 34 feet

So 2a = 34

Dividing by 2 on both sides

a = 17

Also minor axis is 16 feet

So 2b = 16

Dividing by 2 on both sides

b = 8

Now we know

c² = a² - b²

c² = 17² - 8² = 289 - 64 = 225

Taking square root on both sides

c = 15 feet

Now the two foci are (15,0) & (-15,0)

Distance between these points is 15 - (-15) = 15 + 15 = 30

The distance between the two foci is 30 feet.

4 0
4 years ago
Read 2 more answers
Other questions:
  • Can someone please help me with this question?
    9·1 answer
  • PLEASE SOMEONE HELP ME I REALLY NEED IT!!! ASAP PLEASE !!!!!
    11·1 answer
  • Please help me!!!!! (its really simple)
    14·2 answers
  • The folding chair has different settings that change the angles formed by its parts. Suppose m 2 is 35° and m 3 is 80°. Find m 1
    10·1 answer
  • the following equation can be used to predict the average height of boys anywhere b/w birth and 15 years old: y=2.79x+25.64, whe
    5·2 answers
  • What type of correlation is shown in the graph?<br> no correlation<br> positive<br> negative
    15·1 answer
  • DUE in a couple of minutes!!help me out with this question (geometry)
    6·1 answer
  • Mr. Potter's class will take a test for 1 hours. They need to finish by half past 11 to get to lunch on time.
    8·1 answer
  • Plz answer ASAP <br> Thank you
    13·1 answer
  • HELPPPP MEEE PLEASE QUICK 15 points
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!