Which discovery by astronomer Vera Rubin helped prove the existence of dark matter?
HELP MEEEH :c

Galaxies exist outside of the Milky Way.
The expansion of the universe is accelerating.
Galaxies spin faster than they should, based on their visible matter.
Gas giants form farther from the Sun, where temperatures are cooler.

Answers

Answer 1

Answer:

Galaxies spin faster than they should based on their visible matter

Step-by-step explanation:

Hope this helps :)

Answer 2

Answer: Galaxies spin faster than they should based on their visible matter

Step-by-step explanation:Took the test got an A


Related Questions

Plz complete the table.

Answers

Answer:

32

Step-by-step explanation:

divide 1320 by 8 to see how many feet per minute and then divide that number by 5,280 ft to see your final  answer.  

In a triple batch of spice mix, there are 15 teaspoons of salt and 6 teaspoons of garlic powder. how much salt is used with 8 teaspoons of garlic powder?
in a triple batch of spice mix, there are 15 teaspoons of salt and 6 teaspoons of garlic powder. how much salt is used with 8 teaspoons of garlic powder?

Answers

20 teaspoons

Per batch amounts:
Salt = 15/3 = 5 teaspoons
garlic powder = 6/3 = 2 teaspoons

8 teaspoons of garlic powder number of batches:

8/2 = 4 batches

4 batches of salt

4 * 5 = 20 teaspoons

Answer:

2 teaspoons

Divide 15 by 5:

15/5 = 3

Divide 6 by 3:

6/3 = 2

Thus, there are 2 teaspoons of garlic powder used :)

Hope this helps

I NEED HELP PLEASE!!!!

Answers

Answer:

  see attached

Step-by-step explanation:

The missing measures can be found by making use of the properties of tangents, special triangles, trig functions, and circles.

Radii

All of the incircle radii are the same length:

  CJ = CK = CL = 4

Angles

All of the segments to the incenter from the triangle vertices are angle bisectors. Of course, the sum of angles in a triangle is 180°, and the acute angles in a right triangle are complementary.

  ∠CML = ∠CMJ = 20°

  ∠CPL = ∠CPK = 40° . . . . . (∠P = 180° -40° -60° = 80°)

  ∠CNJ = ∠CNK = 30°

The central angles are complementary:

  ∠MCL = ∠MCJ = 70°

  ∠PCK = ∠PCL = 50°

  ∠NCJ = ∠NCK = 60°

Tangents

The two tangents from a vertex are congruent. Each will be the radius divided by the tangent of the (half) vertex angle.

  ML = MJ = 4/tan(20°) = 11.0

  PL = PK = 4/tan(40°) = 4.8

  NJ = NK = 4/tan(30°) = 6.9

Angle bisectors

The length from each vertex to the incenter will be the radius divided by the sine of the (half) vertex angle.

  MC = 4/sin(20°) = 11.7

  PC = 4/sin(40°) = 6.2

  NC = 4/sin(30°) = 8.0

__

Additional comment

The given dimensions are slightly off. The angle at M is 19.9831°, or the length LM is 10.9899 units, or the radius is 4.00367. In order to keep the numbers nearly consistent, we have rounded to one decimal place. The 30° triangle is the only one with an angle that has a rational trig function (sine).

NEED HELP I WILL MARK BRAINLIEST!!! AN EXPLANATION APPRECIATED !! HURRY

Answers

Answer:

A. Natural numbers

B. Whole numbers

C. Integers

D. Rational numbers

E. Irrational numbers

Step-by-step explanation:

Sorry, but I don't know how to explain it. If you need help, I suggest searching it up on Google.

Sorry :(

The ratio table shows the weights for different amounts of snow. Find the unit rate in pounds per cubic foot. Give your answer in decimal form.

Answers

Answer:

1.75

Step-by-step explanation:

The answer to your question is 8.75

Overnight temperature decreased by 15 1/2 degrees F. If the temperature began at -3.6 degrees, What is the current temperature?

Answers

Answer:

your answer is -19.1

Step-by-step explanation:

you add -3.6 and -15.5 to get -19.1

to determine that 15.5 is negative look at key words surrounding it, like decreased, that tells you that your number is a negative.

hope this helped :)

It takes Tyreke 28 minutes to bike to his school, which is 7 miles away

If Tyreke continues to pedal at this pace, how long would it take for him to get to the soccer field, which is 8.8 miles away from school?

Answers

Answer:

35.2 minutes

Step-by-step explanation:

Time taken=28min

Distance=7miles

Speed=7/28=0.25milesperminute

Time=distance/speed

Time=8.8/0.25

=35.2 minutes

35.2 hopes that Helps

Name _____________________________________ Date ______________________________Pd______
PERCENT APPLICATION
Use your understanding of percentages to complete the table below. Be sure to show your work.
Unit: Percents Homework 4
PROBLEM
PROPORTION
WORK AND SOLUTION
1. Francis heard that a car stereo system was on sale for 30% off. If the sale price was $57.75, what was the original price of the stereo?
2. Mr. Robins earns a commission on each airfare he books. At the end of the day, he had booked $208.60 worth of airfare and earned $31.29. What is Mr. Robins’ commission rate?
3. The bill at a restaurant came to $136.40. The patrons decided to leave a 15% tip. What was the total bill including tip?
4. Winter coats are marked
st
70% off on February 1 . If a
coat costs $57.75 on January 31st, how much will it cost on February 1st?
Answer the multiple choice question below.
5. At West Middle School, there are 420 students who eat lunch. The school lunch line always offers pizza on Friday’s. If 65% of students purchase pizza on Friday, then how many pizza lunches were purchased?
A. 273 B. 147 C. 83 D. 129
©Maneuvering the Middle LLC, 2016

Answers

maybe try cutting it to it’s just the problem it’s hard to understand sorry:(
Cut it so it’s easier
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