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
finlep [7]
3 years ago
9

√2.35^2 + √-4.27^2

Mathematics
1 answer:
Ostrovityanka [42]3 years ago
8 0
Square roots and squares cancel eachother. therefore the problem is simply:
2.35 + -4.27= -1.92
You might be interested in
<img src="https://tex.z-dn.net/?f=2x%5E%7B2%7D%20%2B%203%20%3D%205" id="TexFormula1" title="2x^{2} + 3 = 5" alt="2x^{2} + 3 = 5"
sveta [45]

Answer:

x = 1

Step-by-step explanation:

  • 2x^2 + 3 = 5
  • 2x^2 = 5 - 3
  • 2x^2 = 2
  • x^2 = 2/2
  • x = \| 1
  • x = 1

6 0
3 years ago
If there are 6 air conditioners in each require 8 pounds of refrigeration how many pounds of refrigeration are needed to fill al
djverab [1.8K]
8 times 6 = 48 so that’s the answer!
4 0
3 years ago
What is the result when the number 32 is increased by 25%?​
natulia [17]

Answer:

32, percentage increaced by 25% =40

Step-by-step explanation:

7 0
2 years ago
Alina has just recieved 3 video games for her birthday to add to her existing 12 video games. A week later she went to the thrif
Papessa [141]
Let the existing no. of video games she had be x,
then 
(3+x)+2x+5

3 0
3 years ago
One of the tallest buildings in a country is topped by a high antenna. The angle of elevation from the position of a surveyor on
irina1246 [14]

Answer:

a. distance of the surveyor to the base of the building = 2051.90 ft

b. height of the building = 1384 ft

c. Angle of elevation from the surveyor to the top of the antenna = 38.31°

d. Height of antenna  =  237.08 ft

Step-by-step explanation:

​The picture above is a illustration of the described event.

a = the height of the flag

b = the height of the building

c = distance of the surveyor from the base of the building

the angle of elevation from the position of the surveyor on the ground to the top of the building = 34°  

distance from her position to the top of the building  = 2475 ft

distance from her position to the top of the flag  = 2615 ft

​(a) How far away from the base of the building is the surveyor​ located?​

using the SOHCAHTOA principle

cos 34° = c/2475

c =  0.8290375726  × 2475

c = 2051.8679921

c = 2051.90 ft

(b) How tall is the​ building

The height of the building = b

sin 34° = opposite /hypotenuse

0.5591929035 = b/2475

b =  0.5591929035  × 2475

b =  1384.0024361

b =  1384.00 ft

​(c) What is the angle of elevation from the surveyor to the top of the​ antenna?

let the angle = ∅

cos ∅ = adjacent/hypotenuse

cos ∅ = 2051.90/2615

cos ∅ =  0.784665392

∅ = cos-1  0.784665392

∅ =   38.310258303

∅ =  38.31°

​(d) How tall is the​ antenna?

height of the antenna = a

sin 38.31° = opposite/hypotenuse

sin 38.31° = (a + b)/2615

sin 38.31° × 2615 = (a + b)

(a + b) =  0.6199159917  × 2615

(a + b) =  1621.0803182

(a + b) = 1621. 08 ft

Height of antenna = 1621. 08 - 1384.00  =  237.08031822 ft

Height of antenna  =  237.08 ft

8 0
3 years ago
Other questions:
  • George has $23 to spend on Art supplies. He wants to buy markers,paper,and glue. If the total cost of the markets and paper is m
    12·1 answer
  • Someone plz help me out
    11·1 answer
  • Solve for t (t+2)2=10
    5·1 answer
  • a girl that is 5 ft tall casts a shadow 4 ft long. At the same time, a tree casts a shadow 24 ft long. How tall is the tree
    15·1 answer
  • Angles and geometry!! Please help!
    13·1 answer
  • Albert had a goal of saving $80. He saved 115% of his goal. How much money did Albert save?
    9·1 answer
  • One hundred four and
    10·2 answers
  • I need help with this as fast as possible, I have no idea what it could be-
    13·1 answer
  • 1.<br> Find m2ABC.<br> А<br> (6x - 7)º<br> B<br> (4x + 23)
    15·1 answer
  • Match each of the English phrases with the correct math translation.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!