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
vesna_86 [32]
4 years ago
13

Can someone please answer. There is one problem. Thank you!

Mathematics
1 answer:
fenix001 [56]4 years ago
3 0
Hello,

if we use Heron's formula:

p=(7.2+5.9+11.2)/2=12.15

Area=√(p*(p-a)(p-b)(p-c))
=√(12.15*(12.15-7.2)(12.15-5.9)(12.15-11.2))
=√357,09609375
=18,896986366878714557972599553433≈18.90

So i suppose Answer=D (with an error of 0.01)


You might be interested in
A car traveled 200 miles on 8 gallons of gas. Find the unit rate of gallons per mile.
Rufina [12.5K]
0.04 gallons per mile

Hope I helped please press "thanks" button, It will make me happier
6 0
3 years ago
Read 2 more answers
Could someone please help me with this
sdas [7]
<h2>question :</h2>

40. which of the following equation graphs as a vertical parallel to the y-axis?

41. if ΔABC = ΔFGH, then which of the following statements is not necessarily true?

<h2>my answer :</h2>

40. the meaning of "vertical parallel to the y-axis" is a line that is perpendicular to the x-axis

then the equation that can be written parallel to the line y is x = a, a is the distance from point 0.

(*the second choice is correct)

41. if ΔABC = ΔFGH, it can be said that the second triangle of the shape is congruous (*in the picture)

(*the second choice is correct)

7 0
3 years ago
Unit 2
olga2289 [7]

Answer:

A. $6.67

Step-by-step explanation:

a) 2y -3x + 8

a) y = - 3/2x + 8/2

a) y = - 3/2x + 4

b) 5y - 15x = -30

b) 5y = 15x - 30

b) y = 15/5x - 30/5

b) y = 3x - 6

3x - 6 = 3/2x + 4

3x -3/2x = 4+6

3/2x = 10

x = (10) / (3/2) = $6.67

5 0
3 years ago
EXPLAIN why a square could be identified as a rhombus
sergey [27]
Rhombuses are a type of parallelogram, which means their opposite sides are always parallel, and their opposite angles are always equal. A square<span> is the only type of </span>rhombus<span> where all four angles are equal, and the only </span>rhombus<span> that also meets the definition of a rectangle (all angles are 90 degrees).</span>
8 0
4 years ago
Read 2 more answers
Using the rule of 72, ? -
Kay [80]
12 years
just for extra space
5 0
3 years ago
Other questions:
  • What is one and two thirds times two and three fourths
    11·2 answers
  • Why did helga the witch sign up for anger management classes
    6·1 answer
  • Please help me with this math problem, urgent please
    12·2 answers
  • A homeowner doing some remodeling requires the services of both a plumbing contractor and an electrical contractor. If there are
    8·1 answer
  • PLEASE HELP ME I NEED IT
    5·1 answer
  • FREE 10 POINTS ( MUST HAVE WORK SHOWN) &amp; (ANSWER MUST BE CORRECT)..
    9·1 answer
  • One Step Equations<br>Solving with +/-<br>Solve each equation.<br>1) 3=n-7​
    10·2 answers
  • Someone please help me ?
    14·2 answers
  • Triangle ABC has vertices A(−4, 3) , B(2, 3) , and C(−5, 1) . A dilation with a scale factor of 5 and center at the origin is ap
    15·2 answers
  • What is the value of (f+g)(5)if f(x)=7x-2 and g(x)=9x-4?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!