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
alina1380 [7]
3 years ago
9

4.Given AABC, with AB = 5cm, BC = 7cm and AC = 8cm, what is the area of the triangle?​

Mathematics
1 answer:
Maurinko [17]3 years ago
5 0
In Triangle ABC
We have AB=5 cm
BC=7 cm
AC=8 cm

Use Heron's formula with
sides a,b and c
Perimeter,s=(a+b+c)/2
Area= √s(s−a)(s−b)(s−c)

S=(AB+BC+AC)/2
=(5+7+8)/2
=20/2
=10cm

Area of ABC= √10(10-5)(10-7)(10-8)
= √10(5)(3)(2)
= √300
=17.3205 cm
You might be interested in
Solve z2 – 2z – 35 = 0 using the zero product property.
elena55 [62]
Z^2 - 2z - 35 = 0
(z - 7)(z + 5) = 0

z - 7 = 0
z = 7

z + 5 = 0
z = -5

solution is : z = 7,-5


3 0
4 years ago
6. The table shows the relationship between x and y values.
alexgriva [62]

Answer:

y = x+5 This equation satisfies all the four sets of x and y values 1.When x = 5,y = x+5 = 5+5 = 10 2.When x = 10,y = x+5 = 10+5 = 15 3.When x =15,y = x+5 = 15+5 = 20 4.When x = 20,y = x+5 = 20+5 = 25 Hence,

Step-by-step explanation:

5 0
3 years ago
Does anyone know the answer
zalisa [80]
The slope would represent how high you’re going and at what rate.

You are hiking uphill, because it’s adding, not subtracting..
5 0
4 years ago
Find the mode for the following distribution. Number Frequency 16 3 20 5 24 9 28 7 32 7 36 5 40 3
andreev551 [17]

Answer: Modes: 3, 5, 7

Step-by-step explanation:

The numbers, 3, 5, and 7, all were repeated. This gave them the total of 2 times they appeared in the sample set. Mode is the most frequent number that appears in the set, which in this case is 3, 5, and 7.

7 0
3 years ago
What is the slope of the line that passes through the points (-2, 7) and (2, -5) ?
masha68 [24]

Answer:

12

Step-by-step explanation:

Since the slope of a line is its gradient, we use the formula for finding gradient.

Gradient

=  \frac{change \: in \: y}{change \: in \: x }  \\  \ = \frac{7 -  - 5}{ - 2 - 2 }  \\  = 12

hope it helps.

7 0
3 years ago
Other questions:
  • 3x^2-x-2 by x+4 using synthetic division
    14·1 answer
  • Read the assignment carefully and make sure you answer each part of the question or questions.
    12·1 answer
  • Richard is conducting an experiment. Every time he flips a fair two-sided coin, he also rolls a six-sided die. What is the proba
    14·2 answers
  • A diver swims 20 m under water to the anchor of a buoy that is 10 m below the surface of the water. On the surface how far is th
    15·1 answer
  • 50 pennies weigh 135 grams. 1 ounce equals to 30 grams. How many ounces will 100 pennies weigh?
    14·1 answer
  • Please I really need help with this question!!
    12·2 answers
  • if the length of the line arc is 3 cm and the radius is 10 cm calculate the angle at the center of the circle
    5·2 answers
  • HELLLLPPPPPPPP PLEASEEEEEEEEE
    7·1 answer
  • What is the circomfrence of the circle r = 4 ft
    12·1 answer
  • Which is the sum of and 3/10 and 1/3​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!