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
Black_prince [1.1K]
3 years ago
9

Do these numbers form a right triangle? 15,12,21 please help

Mathematics
1 answer:
bazaltina [42]3 years ago
8 0
No they do not form a right triangle
You might be interested in
Identify the measure of PR in the diagram. PLEASE HELP!!
kykrilka [37]

Answer:

The correct answer is :  Fourth, PR = 6

Step-by-step explanation:

PR is mid segment ( median line) of the side YZ in the triangle XYZ and is equal it's half.

PR = 1/2 YZ = 1/2 · 12 = 6

PR = 6

God with you!!!

3 0
3 years ago
X = ?<br><br>Find the composite function 20 points and brainliest
masha68 [24]
Answer:

Explanation:

fg(x) = (x+2)(3x^2 - 1)
= 3x^3 - x + 6x^2 - 2
= 3x^3 + 6x^2 - x - 2

gf(x) = (3x^2 - 1)(x + 2)
= 3x^3 + 6x^2 - x - 2

As you can see:

fg(x) = gf(x)
3x^3 + 6x^2 - x - 2 = 3x^3 + 6x^2 - x - 2
5 0
3 years ago
This Stem-and-Leaf Plot shows the amount of rainfall received in centimeters in each month. What is the median of this data set?
WARRIOR [948]

Answer:

55.5 B

Step-by-step explanation:

We have the following points of data

48, 49, 50, 51, 54, 55, 56, 58, 60, 62, 63, 63

The median is the data point in the middle (when listed in order)

If we find the middle number we'll see that it's between 55 and 56. When this is the case you find the average of  the two numbers (add them and divide by 2)

(55+56)/2=55.5

3 0
3 years ago
Read 2 more answers
if the measure of &lt;BEC is (2x+3)° and x=30, which expression could represent the measure of &lt;AED?​
Maurinko [17]

Answer:

The answer is 3x-27

Step-by-step explanation:

If the angles are vertical from each other it means they are congruent. 2x+30 is 63, you plug in the x, 2(30)+30. You do that to the second one and also get 63, 3(30)-27. Therefore 3x-21 is the answer.

8 0
3 years ago
You and your friend are selling tickets to a charity event. you sell 12 adult tickets and 6 student tickets for $138. your frien
mr Goodwill [35]
Let's say the cost of student tickets is x and the cost of adult tickets is y. Then:

(1) 12y + 6x = 138
(2) 5y + 11x = 100

If we rearrange equation (1) we get:
12y = 138 - 6x
Now divide each side by 12:
y = 11.5 - 0.5x

We can now substitute this into equation (2):

5(11.5 - 0.5x) + 11x = 100
57.5 - 2.5x + 11x = 100
8.5x = 42.5
x = 5, therefor the cost of a student ticket is $5.00
6 0
3 years ago
Other questions:
  • .) What does the term 9b represent?
    7·1 answer
  • The model represents x2 - 9x + 14
    9·1 answer
  • How to solve for B in this equation: A= 3B + 7C
    6·1 answer
  • No.14<br> Please help me
    7·1 answer
  • 160 pounds to kilograms
    9·2 answers
  • 3. The weights of apples in a shipment from Al's Orchards are normally distributed with a mean of 142 grams and a standard devia
    15·1 answer
  • You invest $5000 into an account earning 4% interest compounded quarterly. Write an
    15·1 answer
  • Broccoli costs $1.50 per pound at a store. How much money does 32 ounces of broccoli cost?
    6·1 answer
  • debe tomar 4 fotos de una carrera. Cada vez que un corredor pasa a su lado, hay un 50% de probabilidad de que tome una foto de e
    13·1 answer
  • What is Q(1.5) if ()=cos() and Q(x) is centered at /2? Round your answer to 4 decimals, for example, 0.1234.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!