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
slava [35]
3 years ago
15

Please help me on question 19

Mathematics
2 answers:
kobusy [5.1K]3 years ago
4 0
Its is 9 cm. I know because the 13 cm side isn't equivalent  to the 13 cm side so if you measure it like i did you will get the answer 9cm.
tatuchka [14]3 years ago
3 0
Since it is a right triangle, you can use the Pythagorean theorem to solve it.
The Pythagorean theorem says that the sum of the squares of the legs of the triangle is equal to the sqauare of the hypotenuse.
ac^2 + ba^2 = cb^2
ac^2 + 5^2 = 13^2
ac^2 + 25 = 169 (simplify the squares)
ac^2 = 144 (subtract 25 from both sides)
ac = 12 (take the square root of both sides)

The correct answer is C. 12 cm.

hope this helps =)
You might be interested in
Answer?...................
Viefleur [7K]

Step-by-step explanation:

please mark me as brainlest

6 0
2 years ago
Read 2 more answers
A rectangular prism has dimensions 2 feet by 3 by h feet.
Romashka [77]

Answer:

C

Volume is lxwxh. so it would be 2x3xh

4 0
3 years ago
Graph the equation using the slope and y-intercept<br> y = -x + 3
docker41 [41]

Answer:

Slope: −1

y-intercept: (0,3)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
If 3f(x) - f(1/x) = x^2 , what is the value of f(1/2)?<br>and it's from R-{0} to R obviously.
GarryVolchara [31]

Answer:

0.59375‬

Step-by-step explanation:

3f(x) - f(1/x) = x^2

x = 2:   3f(2) - f(1/2) = 2^2

x = 1/2: 3f(1/2) - f(2) = (1/2)^2

Let a = f(1/2) and b = f(2):

3b - a = 4; 3a - b = 1/4

3b - 4 = a

3(3b-4) - b = 1/4

8b = 12 + 1/4

b = 1.53125‬

3 * 1.53125‬ - 4 = a

a = 0.59375‬

8 0
3 years ago
Solve 2x2 + 5x – 3 = x2 + 4x + 3 algebraically.
seraphim [82]
TO ᖴIᑎᗪ ᙭ YOᑌ ᕼᗩᐯE TO ᖴᑌᑎᗪ OᑌT ᗯᕼᗩT TᕼE OTᕼEᖇᔕ ᗩᖇE ᗯITᕼOᑌT ᙭ ᗩᑎᗪ TᕼEᑎ ᔕEE ᗯᕼIᑕᕼ ᑎᑌᗰᗷEᖇ GOEᔕ Iᑎ ᖴOᖇ ᙭ ᗩᑎᗪ TᕼᗩT'ᔕ TᕼE ᗩᑎᔕᗯEᖇ

~(•ᑌ•)~
5 0
3 years ago
Other questions:
  • What is the answer to this question ?
    9·1 answer
  • Use graphing calculator to find the zeros and local maximum ad minimum of polynomial functions.
    12·1 answer
  • Ebony walked at a rate of 3 1/2 miles per hour for 1 1/3 hours. how far did she walk?
    7·2 answers
  • 8 times ( 18 divides 6 )
    12·2 answers
  • I NEED FAST HELP!!!!!!!!!!!!!!!!!!!
    7·1 answer
  • Samira buys a car the car loses 23% of its value in the first year. at the end of the first year her car is worth 6575.80 dollar
    8·1 answer
  • Solve the system of equations by multiplying first. Enter the solution as an ordered pair.
    13·2 answers
  • A 200g packet of Orea’s costs $2, Calculate How much would a 100g packet cost
    13·2 answers
  • PLEASE HELP I NEED THIS ASAP.
    10·2 answers
  • ....Help Please......
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!