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
Galina-37 [17]
2 years ago
6

A triangle has side lengths of 39, 80, and 87. Is this triangle a right triangle?

Mathematics
2 answers:
Pani-rosa [81]2 years ago
6 0

Answer:

si

Step-by-ste

iren2701 [21]2 years ago
4 0

Answer:

Step-by-step explanation:

39²=1521

80²=6400

39²+80²=1521+6400=7921

87²=7569

7921≠7569

so it is not aright angled triangle.

You might be interested in
Please show me how you got the answer. Will give brainliest.
umka21 [38]

Answer:          410 possible points

To solve for the possible points in the course, use a proportion and cross multiply.

<h2>What is a proportion?</h2>

A proportion is two fractions that are equal to each other. For the fractions to be equal, they are proportionate. In our math problem, percentage is proportionate the the number of points.

The fractions represent information you have, and one variable will represent what you are solving for.

<h2 /><h3>Given</h3>

Your points = 361

Points to get an 'A' = your points + 8

'A' = 90% of possible points

<h3>Find the points needed for an 'A' at 90%</h3>

Points to get an 'A' = your points + 8

= 361 + 8

= 369

<h3>State variables</h3>

let <em>x</em> be the amount of possible points

<h3 /><h3>Write a proportion</h3>

We know the number of points for 90% is 369 points. Remember that 90% is the same as 90/100.

Keep the information with the same units inside the same fraction. Here, percentage is represented by the first fraction. Points is represented by the second fraction.

\displaystyle{\frac{90}{100}=\frac{369}{x}}

<h3>Solve</h3>

We can solve using cross multiplication. This is when we multiply each numerator by the denominator from the other fraction.

90x = 369*100        Simplify by multiplying.

90x = 36,900            Isolate the variable <em>x</em>.

\displaystyle{\frac{90x}{90} = \frac{36,900}{90}}           Divide both sides by 90 to cancel out 90 on the left.

\displaystyle{x = \frac{36,900}{90}}              Divide.

x = 410                    Solved for <em>x</em>, representing the possible points.

∴ The possible points in the art course is 410.

Learn more about finding a missing number given percentage here: brainly.com/question/26535441

4 0
1 year ago
Subtract the quotient of 18 and 2 from the sum of 22 and 9. A. 22 B. 4 C. 23 D. 5
frez [133]
Okay, so this is simple. It just needs steps.

Quotient of 18 and 2 = 9.
Sum of 22 and 9 = 31. 

31 - 9 = 22. 
8 0
2 years ago
A Nike jacket has a regular price of $64. You have a coupon for 15% off.
lakkis [162]

Answer:the anewer is

Step-by-step explanation:

54.4 dollars

7 0
2 years ago
Read 2 more answers
You invest $1,250 in a stock. The value of the stock goes up 3.2% and you sell it. How much money did you make?
suter [353]

Answer:

$1290

Step-by-step explanation:

1250x3.2%=40

1250+40=1290

4 0
3 years ago
Read 2 more answers
REALLY REALLY FASTTTT AND I NEED THE RIGHT ANSWERRRRR, Who ever gives me the right answer i will give them 20 points for free.
disa [49]
She should randomly select campers period, because she wants to estimate the percentage of "campers that ride once a week" and not for example what percentage of campers who ride that ride once a week...
5 0
3 years ago
Read 2 more answers
Other questions:
  • Which number below is a factor of 15 but not a multiple of 3?
    9·1 answer
  • 2 1/8 divided by 2 =
    13·2 answers
  • Half of a liter is equal to 16.91 ounces. How many ounces are there in 3 liters?
    9·2 answers
  • Visitors enter the museum through an enormous glass entryway in the shape of a tetrahedron. The figure shows the dimensions of t
    5·1 answer
  • Solve for w. 8w -4w = -16 w =
    12·1 answer
  • -(-10x-8)=-(4x+10)<br> A)-4<br> B)-2<br> C)-3<br> D)3<br> show work
    5·1 answer
  • Determine the relationship between the two triangles and whether or not they ca
    7·1 answer
  • Which equation represents a linear function that is proportional?
    11·2 answers
  • Find the area of the figure.<br> 6 in.<br> 6 in.<br> 8 in.<br> 4 in.
    8·1 answer
  • Please help ASAP <br> Please help ASAP<br> Please help ASAP<br> Please help ASAP
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!