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
OLga [1]
3 years ago
8

Can someone answer number 11?

Mathematics
2 answers:
Zinaida [17]3 years ago
6 0
1- rational 2- rational. Hope this helped!!
Anna71 [15]3 years ago
5 0

Answer:

Step-by-step explanation:

To be rational means to be able to express the result as the ratio of two whole numbers.

a) 4/7 + (-1/3) = 12/21 - 7/21 = 5/21 so rational

b) √(4) • 2/5 = ±2 • 2/5 = ±4/5 so both solutions are rational

You might be interested in
Please help ASAP!<br><br> thanks in advance
babunello [35]

Answer:

# 2 the you are on the right one

Step-by-step explanation:

6 0
2 years ago
Sin(a+b) + sin (a-b) = 2 sin a cos b<br><br> verify the identitiy
Bas_tet [7]
Write out the sum formula for sin 
<span>sin(x + y) = sinxcos + sinycosx </span>

<span>Then expand sin(a + b) + sin(a - b) </span>
<span>sinacosb + sinbcosa + sinacosb - sinbcosa </span>
<span>The 2nd and 4th terms cancel and you get </span>
<span>2sinacosb</span>
6 0
3 years ago
Find the reference angle of 13π/5
Mars2501 [29]

Answer:

2π/5

Step-by-step explanation:

8 0
3 years ago
Yumi and Juan pick up litter along the highway at the same rate. Yumi picks up litter for 3 miles and takes two hours longer tha
Harlamova29_29 [7]

3/(x+2) = 2/x

multiply both fractions by x(x+2) to cancel out the bottoms

so it becomes 3x = 2x+4

ow subtract 2X from both sides and you get

x = 4

so it took Juan 4 hours

 it took Yumi 2 hours more so 4+2 = 6 hours

7 0
3 years ago
Read 2 more answers
Can someone help me out? I'm stuck. i think I've got the layout but I'm not sure??<br>​
crimeas [40]

Answer:

5.83 ft

Step-by-step explanation:

Pythagorean Theorem:

a² + b² = c²

3² + 5² = c²

9 + 25 = c²

34 = c²

c ≈ 5.8309 ≈ 5.83

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

4 0
3 years ago
Other questions:
  • Is 7.7 greater less than or equal to 7.5
    14·2 answers
  • Mr. Murphy has an old coin that has 10 sides. If it's shape it's a polygon how many angles does the old coin have
    10·1 answer
  • Does anybody know the answer??<br> legit confused.
    15·1 answer
  • skier is trying to decide whether or not to buy a season ski pass. A daily pass costs ​$60. A season ski pass costs ​$450The ski
    14·1 answer
  • 10| x – 4| - 3 &gt; 47​
    12·1 answer
  • 108800=12x+5y solve for x and y
    9·2 answers
  • A paperclip manufacturer puts 75 paperclips in each box. Every hour the factory produces 114,375 paperclips. How many boxes does
    15·1 answer
  • Solve the following inequality then select all answers in the solution set. 8y - 5 &lt; 19
    9·1 answer
  • The hypotenuse of a 30-60-90 degree triangle is 24.2 ft. What is the length of the shortest leg?
    8·2 answers
  • Brandon is a high school basketball player. In a particular game, he made some two point shots and some three point shots. Brand
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!