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
Komok [63]
1 year ago
13

I need help to solve this

Mathematics
1 answer:
-BARSIC- [3]1 year ago
3 0

Step-by-step explanation:

(6+r)^2 = 81 + r^2

36 + 12r+ r^2 = 81 + r^2

12r = 81-36 = 45

r = 15/4 = 3.75

You might be interested in
Help pleasssss Order the following numbers from least to greatest.<br> 0.58 0.28 1/2
Tema [17]
Answer. 0.28, 1/2, 0.58
Explanation. If you convert all the numbers to decimal form, we find that this is their position from least to greatest. Hope this helps, let me know if it is correct so others can use it as well :)
Good luck.
8 0
2 years ago
Read 2 more answers
James is 60 years old. His age is 8 years more than twice Maggie's age. How old is Maggie?
kow [346]

Answer:26

Step-by-step explanation:

60-8=52

52•2=26

4 0
3 years ago
Read 2 more answers
Dave wants to buy a bike for $180. He has $40. Dave mows lawns for $10 per lawn.
LenaWriter [7]

Answer:

180 = 40 + 10x

Step-by-step explanation:

5 0
2 years ago
At a university, 6 out of every 13 students live on campus; if there are 156 students enrolled how many live on campus?
Andru [333]

Answer:

72

Step-by-step explanation:

156 divided by 13 times 6.

3 0
2 years ago
Read 2 more answers
When Tomas simplified the expression -2.6 + (-5.4), he got 2.8. what mistake did Tomas likely make?
vladimir2022 [97]

Tomas used incorrectly the rule of signs, the expression should be simplified as follows:

-2.6 + (-5.4)

-2.6 -5.4 = 8

<h3></h3><h3>What mistake did Tomas likely make?</h3>

Here Tomas wants to perform an addition between two numbers:

-2.6 + (-5.4)

And the outcome that Tomas gets is:

-2.6 + (-5.4) = 2.8

Here his mistake seems to bee that he thought the second number was a positive number, and he solved the operation:

-2.6 + 5.4

So, he used wrong the rule of signs.

Remember that the rule of signs says that:

(-)*(+) = (+)*(-) = (-)

Using that, we can rewrite the original expression:

-2.6 + (-5.4)

to:

-2.6 - 5.4

Solving that, we get:

-2.6 - 5.4 = -8

Which is the outcome that Tomas would have gotten if he had used correctly the rule of signs.

If you want to learn more about the rule of signs:

brainly.com/question/13333620

#SPJ1

5 0
2 years ago
Other questions:
  • Find the sum and choose the correct answer.2n 3 + 4n 2 - 7 and -n 3 + 8n - 9
    5·2 answers
  • Need help ASAP please!!! The formula determines the magnitude of an earthquake, where I is the intensity of the earthquake and S
    6·1 answer
  • Which of the following is a rational number but NOT an integer?
    12·2 answers
  • Please give me the answer to number 2 you don’t need to explain it just give me the answer
    7·1 answer
  • you have 5 red crayons, 3 yellow crayons, 4 blue crayons and purple crayons. what multiplication would you do to find the probab
    7·1 answer
  • What is the answer to (2a^4/b^5)^3
    9·1 answer
  • You rolled a fair six sided die what is P Roll a 2
    11·2 answers
  • (BRAINLIEST FOR QUICKEST)
    12·1 answer
  • the graph is _ throughout its domain and has _ at the x-axis because the value bx can get very close to 0 but never reach it
    7·2 answers
  • Y=-3x + 12<br> Determine the intercepts of the line
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!