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
fiasKO [112]
3 years ago
14

Triangle ABC had a perimeter 18 cm

Mathematics
1 answer:
Alex3 years ago
4 0

Step-by-step explanation:

what is the main condition the lengths of the sides of a right-angled triangle have to fulfill ?

Pythagoras !

c² = a² + b²

c is the Hypotenuse (the baseline opposite of the 90 degree angle), a and b are the so-called legs (the sides enclosing the 90 degree angle).

only if there is a combination of the sides, for which the Pythagoras equation is true, do we have a right-angled triangle. otherwise not.

we also know CA = 18 - 7 - 3 = 8 cm

so, let's try

8² = 7² + 3²

64 = 49 + 9 = 58 wrong

7² = 8² + 3²

49 = 64 + 9 = 73 wrong

3² = 8² + 7²

9 = 64 + 49 = 113 wrong

so, there is no combination, where the Pythagoras equation is true, so it is NOT a right-angled triangle.

You might be interested in
Select the correct answer.
OlgaM077 [116]

Answer:

February 15 a.m

Step-by-step explanation:

It is the highest bar in the graph

8 0
3 years ago
Name three ratios that are equivalent to 5:2
Dmitry [639]
10:4, 15:6, and 20:8. All you do is add the original ratio to its self
5 0
3 years ago
Read 2 more answers
What is negative 3 times 67
BartSMP [9]

Negative 34 means (-34)

times means to multiply, then

-34\times1567

To do it without a calculator we will make -34

-30 + -4, then multiply -30 by 1567 and multiply -4 by 1567 then add the two answers

-4\times1567=-6268-30\times1567=-47010

Then add the answers

-34\times1567=-6268+-47010=-53278

The answer is -53278

7 0
1 year ago
Read 2 more answers
A random sample of 25 college statistics textbook prices is obtained and the mean price is computed. To determine the probabilit
Lubov Fominskaja [6]

Answer:

We need to refer to the population distribution of all college statistics textbook prices.

Step-by-step explanation:

From the given information;

We are being given the sample size and the mean that has already been computed. Thus, to determine the probability of a more extreme mean, we need the t-test statistics value. In this case, we will need the sample mean, thus we need to refer to the population distribution of all college statistics textbook prices.

4 0
3 years ago
The graph of g(x) is obtained by reflecting the graph of f(x)=2|x| over the x-axis.
Lera25 [3.4K]
Answer: Choice C) 
g(x) = -|2x|

You get this answer by simply sticking a negative out front of the original function. In other words, g(x) = -f(x) or more technically, g(x) = -1*f(x).

The negative will flip every y coordinate from positive to negative (or vice versa)

You'll also use the idea that |2x| = 2|x|. The two can be pulled out since we can say |x*y| = |x|*|y|
So |2*x| = |2|*|x| = 2|x|

4 0
3 years ago
Other questions:
  • Expression is to phrase as inequality is to _______________.
    8·1 answer
  • 9×27+2×31-28=n what is the value of n
    15·1 answer
  • Find values of x and y for which ABCD must be a parallelogram. the diagram is not to scale
    5·1 answer
  • Which statement correctly describes a property of white light?
    9·2 answers
  • A cone has a slant height of 25 inches and a radius of 7 cm what is the volume of the cone.
    7·1 answer
  • What is the area of the figure? The diagram is not drawn to scale. Can somebody please helppp thanks
    5·1 answer
  • 1/3 + 1/2 and I am 5 years old
    6·1 answer
  • 21 of 29
    10·1 answer
  • What is the value of the expression3+3⋅72−9⋅103+3⋅72−9⋅10 ?
    6·1 answer
  • Solve the exponential equation by the method of relating the​ bases, first rewriting the equation in the form
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!