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
miss Akunina [59]
2 years ago
11

HELP PLEASSEEE IT REALLY URGENT!!!! PLEASE ONLY ANSWER IF YOU ARE CONFIDENT!

Mathematics
1 answer:
Dmitry [639]2 years ago
6 0

Answer:

B. 12.5 feet below the surface of the water

Step-by-step explanation:

-20 + (-32.5) + 40

40 - 52.5

= -12.5 feet

= 12.5 feet below the water

You might be interested in
Is this set of ordered pairs a function ? (1,9) (0,8) (3,0) (4,9) (7,7).
AURORKA [14]

Answer:

It is not a function because the output of 9 repeats.

(1,9) (4,9)

:D

3 0
2 years ago
What is -7.54 - 1.98 - 0.75
Vinil7 [7]

Answer:

-10.27

Step-by-step explanation:

-7.54-1.98=-9.52, and -9.52-0.75=-10.27

8 0
3 years ago
Read 2 more answers
If x to the power of 2 equals 196 what does x equal
natulia [17]

Answer:

14

Step-by-step explanation:

<h2><u>Solve for x</u></h2>

<u />x^{2}  = 196

this can be solved by square rooting 196

x = \sqrt{196}

x = 14

<h3><u>the value for x is 14</u></h3>
3 0
2 years ago
Read 2 more answers
How do i do this ?i need help on finding the answer . To all three questions
Igoryamba

Answer:

area of larger circle : 9π = 28.27

area of smaller circle: 4π = 12.57

area of shaded region: 15.71

Step-by-step explanation:

area of a circle = πr^2

I think these are right i dont know tho

8 0
3 years ago
What is the square root of 95.54
vladimir2022 [97]
Well this is simple a calculator type problem...but if you are curious as the the algorithm used by simple calculators and such...

They use a Newtonian approximation until it surpasses the precision level of the calculator or computer program..

A newtonian approximation is an interative process that gets closer and closer to the actual answer to any mathematical problem...it is of the form:

x-(f(x)/(df/dx))

In a square root problem you wish to know:

x=√n  where x is the root and n is the number

x^2=n

x^2-n=0

So f(x)=x^2-n and df/dx=2x so using the definition of the newton approximation you have:

x-((x^2-n)/(2x)) which simplifies further to:

(2x^2-x^2+n)/(2x)

(x^2+n)/(2x), where you can choose any starting value of x that you desire (though convergence to an exact (if possible) solution will be swifter the closer xi is to the actual value x)

In this case the number, n=95.54, so a decent starting value for x would be 10.

Using this initial x in (x^2+95.54)/(2x) will result in the following iterative sequence of x.

10, 9.777, 9.774457, 9.7744565, 9.7744565066299210578124802523397

The calculator result for my calc is: 9.7744565066299210578124802523381

So you see how accurate the newton method is in just a few iterations. :P


5 0
3 years ago
Other questions:
  • Move the decimal point in 250,000 to The left as many places as necessary to. Find a number that is greater than or equal to 1 a
    7·2 answers
  • Hey, help me with this pls i only have 10 minutes. 30 points each :)
    5·2 answers
  • I'll give Brainliest!!
    11·1 answer
  • Solve 2x - 8 + 3x &gt; 5x - 4 also if you can plz explain
    6·1 answer
  • 9 x 200 in expanded form
    6·2 answers
  • The value of 9−y is twice the value of y. What is the value of y?
    6·1 answer
  • Describe the characteristics of each set of numbers that make up the set of integers
    6·1 answer
  • Sara earns $80.50 for 7 hours of pet sitting. She earns the same amount per hour each time she pet sits. How many hours does Sar
    6·2 answers
  • Solve for x x^2 + 6x + 1 = 0
    11·1 answer
  • A plane intersects a double-napped cone such that the plane contains the generating line.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!