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
Serggg [28]
3 years ago
12

The hypotenuse of a right triangle is 13cm long. the longer leg is 7 cm longer than the shorter leg. find the side lengths of th

e triangle.
Mathematics
1 answer:
Ad libitum [116K]3 years ago
8 0

5^2 + 12^2 = 13^2


is the second or third Pythagorean triple on the list, which gives us the answer directly.


But if we didn't know that, let x be the short leg:


x^2 + (x+7)^2 = 13^2


2x^2 + 14 x + 49 - 169 = 0


x^2 + 7x  - 60 = 0


(x+12)(x-5)=0


Rejecting the negative root, x=5, other side 12, the Pythagorean triple we found.

You might be interested in
I will give brainliest to one of the correct answers.
statuscvo [17]

Answer:

1. 7/41

2. 7/15

Step-by-step explanation:

1. Probability that it is a multiple of 6 given that it is a 2 digit number: There are 7 numbers that are a multiple of 6 and are 2 digits: 12, 18, 24, 30, 36, 42, and 48. There are 41 numbers that are 2 digits. So, it is 7/41

2. Probability that it is at least 20 given that it is prime. Out of the prime numbers from 1-50, 7 of them are at least 20 and there are 15 primes in that range in total. So, it is 7/15

3 0
3 years ago
Austin drove 455 miles in 7 hours.
Effectus [21]

Answer:

9 hours

Step-by-step explanation:

455/7 gives you the mph

which is 65

then divide 585 miles by the mph (65)

585/65

= 9 hours

3 0
3 years ago
<1 and <2 form a linear pair. The measure of <2 is six more than twice the measure of <1. Find the measure of <2
MrMuchimi

Answer:

122 Degrees

Step-by-step explanation:

Since we are given that angle 1 and 2 make a linear pair:

angle 1 + angle 2 = 180 degrees ----------------------------(1)

We have also been told that angle 2 is 6 more than twice the measure of angle 1

Which means: angle 2 = (2*angle1)  + 6 -------------------(2)

From putting the value of angle 2 in (1) from (2)

<em>angle 1 + 2*angle 1 + 6 = 180</em>

<em>3*angle 1 = 174</em>

angle 1 = 58 degrees -----------------------(3)

From (1) and (3):

<em>angle 2 + 58 = 180</em>

angle 2  = 122 degrees

Therefore, the measure of angle 2 is 122 degrees

7 0
4 years ago
Which of the following correctly expresses sin (70) + sin(30) as a product?
JulsSmile [24]

Answer:

2sin50 cos20

Step-by-step explanation:

We need to write sin (70) + sin(30) as a product. The formula used here is :

\sin A+\sin B=2\sin (\dfrac{A+B}{2})\cos(\dfrac{a-b}{2})

Here, A = 70 and B = 30

So,

\sin 70+\sin 30=2\sin (\dfrac{70+30}{2})\cos(\dfrac{70-30}{2})\\\\\sin 70+\sin 30=2\sin 50\cos20

So, the value of sin (70) + sin(30) is 2sin50 cos20. Hence, the correct option is  (c).

7 0
3 years ago
Scientists notice two asteroids moving directly toward each other. Right now, they are 20 million kilometers apart, but they are
ruslelena [56]

Answer:

The point of intersection is (6, 8). This indicates that in 6 days, asteroid A and B will collide at a point that is 8 million miles away from asteroid A's current position and 12 million miles away from asteroid B's current position.

3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the slope-intercept equation of this line?​
    11·1 answer
  • Evaluate 4x-7 when x=5
    12·2 answers
  • Help ASAP Find the first four terms in An = 10n - 11
    10·1 answer
  • Please answer this correctly
    6·1 answer
  • A survey of a group of seventh graders and a group of teachers at a local middle school asked how many siblings they each have.
    11·2 answers
  • a deep sea exploring ship is pulling up a diver at the rate of 25 feet per minute the diver is 200 feet below sea level how deep
    13·1 answer
  • If the extended warranty on a car costs $200 and average repair bill is $1000, then what is the probability of a breakdown if th
    14·1 answer
  • Use your knowledge of similar triangles to solve for x
    9·1 answer
  • Question 6 Financial Literacy Quiz
    11·2 answers
  • Please help ME I BEG YOU​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!