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
hoa [83]
3 years ago
14

I dont know what I'm doing! could you help me​

Mathematics
1 answer:
photoshop1234 [79]3 years ago
8 0

Answer:

c = 24.34

Step-by-step explanation:

Here, we can use the cosine rule

Generally, we have this as:

a^2 = b^2 + c^2 - 2bcCos A

12^2 = 14^2 + c^2 - 2(14)Cos 19

144 = 196 + c^2 - 26.5c

c^2 - 26.5c + 196-144 = 0

c^2 - 26.5c + 52 = 0

We can use the quadratic formula here

and that is;

{-(-26.5) ± √(-26.5)^2 -4(1)(52)}/2

(26.5 + 22.23)/2 or (26.5 - 22.23)/2

24.37 or 2.135

By approximation c = 24.34 will be correct

You might be interested in
One angle is its own supplement.<br> What size is this angle?
givi [52]

Answer:When an angle is its own supplement, that means that the angle, plus itself, will equal 180 degrees.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
PLEASEE IM GIVING BRAINILST JUST PLEASE HELPP ME!!John and Hank work as gift wrappers at a toy store. In 4 minutes, John can wra
beks73 [17]

Answer:

in 20 minutes John can rap 10 small boxes and Hank can rap 12 small boxes

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Which expressions will help you find the surface area of this net? Select all that apply.
Ierofanga [76]
<h3>9 × 6</h3>

Because the surface area is rectangle and the area of rectangle is length × width

length = 9

width = 6.

so 9×6

8 0
3 years ago
What are the least amount of lines needed to link all 9 dots set out in a square - three up and three across?https://www..com/fi
Sedaia [141]
You only need one if you follow a pattern of
top left dot
top middle dot
middle middle dot
middle left dot
bottom left dot
bottom middle dot
bottom right dot
middle right dot
top right dot
7 0
3 years ago
Find the area of Pentagon ABCDE in which BL perpendicular to AC, CM perpendicular to AD, EN perpendicular to AD such that AC = 8
deff fn [24]

Answer:

Area ABCDE = 82 cm²

Step-by-step explanation:

ABCDE = ΔEAD + ΔDAC + ΔCAB

ABCDE = (12×5)/2 + (12×6)/2 + (8×4)/2 = 30+36+16 = 82

6 0
3 years ago
Other questions:
  • I need the answer for this one
    10·1 answer
  • You can peel 4 potaoes in 10 minute. How long will it take you to peel 14 potatoes?
    9·2 answers
  • Patricia is 5 years older than Wyatt. The sum of their ages is 61. How old are Patricia and Wyatt?
    9·2 answers
  • SOLVE, GRAPH AND CHECK:<br> 6(4- x) &lt; 12
    6·1 answer
  • N − 2/3 = 25 3/4 help now
    10·1 answer
  • A teacher has an annual income of $55,125.
    11·2 answers
  • Help please!!! Thanks
    7·1 answer
  • Find the area of a field shaped like the figure shown below. The area of the field is (round to the nearest whole number): (I wi
    11·1 answer
  • Cual es resultado de (-4)+( )=-(28)​
    14·2 answers
  • Who ran faster, noah or lin?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!