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
ser-zykov [4K]
3 years ago
7

The three sides of a triangle are 4cm, 6cm and 8cm.

Mathematics
1 answer:
yarga [219]3 years ago
6 0

Answer:

In bold below.

Step-by-step explanation:

(a) The largest angle is opposite the largest side.

So by the Cosine Rule:

8^2 = 4^2 + 6^2 - 2*4*6 cos x

cos x =  (8^2 - 4^2 - 6^2) / (-2*4* 6)

= -0.25.

x = 104.48 degrees.

(b) Area of the triangle = 1/2 * 4 * 6 sin 104.48

= 11.62

= 3 √15.

(c)  The shortest altitude will have the longest sides as the base.

Area = 1/2 * altitude * base

3√15 = 1/2 * 8 * a

a = 3√15 / 4 cm

= 0.75√15 cm.

You might be interested in
Please help.worth 40 point
Lilit [14]
64 is a perfect square that provides 8 rows , and each contains 8 seats, this is the first perfect square after 50
3 0
3 years ago
Read 2 more answers
What is the length of segment of A’B?
tino4ka555 [31]

Answer:

8

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
How is the graph of y = -8x2 - 2 different from the graph of y = -8x2?
Aleks04 [339]

Answer:

(Answer D)

Step-by-step explanation:

Please use " ^ " to indicate exponentiation:  y = -8x^2 - 2, y = -8x^2

The graph of y = -8x^2 is an inverted parabola with vertex at (0, 0).

That of y = -8x^2 - 2 is the same as above, except that the whole graph has been shifted 2 units down (Answer D).

4 0
3 years ago
The data obtained from a random sample of track athletes showed that as the foot size of the athlete decreased, the average runn
Rufina [12.5K]

Answer:

The correct option is;

(3) The sample of track athletes show that there is a correlation between foot size and running speed

Step-by-step explanation:

The statements are analysed as follows;

(1) Smaller foot sizes cause track athletes to run slower.

The above statement is a conclusion and it infers more information than is contained in the question statement because there are other factors such as taller athletes run faster than average sized athletes

(2) The sample of track athletes shows a causal relationship between

foot size and running speed.

The above statement is similar to the one above as it is a milder conclusion and it infers more information than is contained in the question statement

(3) The sample of track athletes shows a correlation between foot size

and running speed.

The  above statement is correct as is directly supported by the data as it is a statement made based directly the data

(4) There is no correlation between foot size and running speed in

track athletes.

The above statement is not supported by the available data.

3 0
3 years ago
INTELLIGENT STUDENT IN TRIG?.Ill give brainlest​
faltersainse [42]

Answers:

x = 6

y = 6*sqrt(2)

=======================

Explanation:

To find these values, you can use the general template of a 45-45-90 triangle or you can use trig ratios

tan(45) = 1

tan(angle) = opposite/adjacent

tan(45) = x/6

1 = x/6

6*1 = x

x = 6

-------

sin(45) = 1/sqrt(2)

sin(angle) = opposite/hypotenuse

sin(45) = 6/y

1/sqrt(2) = 6/y

1*y = sqrt(2)*6

y = 6*sqrt(2)

8 0
3 years ago
Other questions:
  • Some help would be appreciated
    10·1 answer
  • What is 5 divided by 161
    9·1 answer
  • Could it be a proportional function?
    9·1 answer
  • I need help with this question. I would also appreciate it if you could give explanations too please.
    14·1 answer
  • Which graph repreWhich value can fill in the blank in the function f(x) = ____|x| to make its graph wider than that of the paren
    11·1 answer
  • After a cab ride, Jacob's total fare was $35. He paid the cab driver a 15% tip. How much was the tip? Thank you and plz hep i wi
    15·1 answer
  • 88888888888888888888888888888
    9·2 answers
  • Cindy woks Monday through Friday at a rate of $15.18 per hour. She takes a 1-hour lunch break. If she
    8·1 answer
  • Show your solution follow the steps need an answer, please need an answer, please.​
    8·1 answer
  • 100 POINTS FOR BOTH SIDES PLZZZ Plzzz help me with this SIDES
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!