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
Drupady [299]
3 years ago
9

HELP!!!! WILL MARK BRAINLIEST!!!!!!

Mathematics
2 answers:
Vedmedyk [2.9K]3 years ago
7 0
C, im pretty sure, ......
jok3333 [9.3K]3 years ago
4 0

Answer:

The answer is C

Step-by-step explanation:

You might be interested in
A telephone pole extends 4 feet below ground and16 feet above the ground. What is the total length x of the pole?
Trava [24]

Answer: The answer is x = 20 feet

Step-by-step explanation: I am right because there is 4 feet below the ground and 16 feet above the ground so if you add 4 + 16 = 20 which is the total feet of the pole.

3 0
3 years ago
A graphing calculator is recommended. A crystal growth furnace is used in research to determine how best to manufacture crystals
Sophie [7]

Answer:

a) w_1 = \frac{-2.156 -\sqrt{2.156^2 -4(0.1)(-183)}}{2*0.1}=-54.896

w_2 = \frac{-2.156 +\sqrt{2.156^2 -4(0.1)(-183)}}{2*0.1}=33.336

And since the power can't be negative then the solution would be w = 33.34 watts.

b) 202= 0.1w^2 +2.156 w +20

0.1w^2 +2.156 w-182=

w_2 = \frac{-2.156 +\sqrt{2.156^2 -4(0.1)(-182)}}{2*0.1}=33.222

204= 0.1w^2 +2.156 w +20

0.1w^2 +2.156 w-184=

w_2 = \frac{-2.156 +\sqrt{2.156^2 -4(0.1)(-184)}}{2*0.1}=33.449

So then the range of voltage would be between 33.22 W and 33.45 W.

c)For this case \epsilon = \pm 1 since that's the tolerance 1C

d) \delta_1 =|33.222-33.336|=0.116

\delta_2 =|33.449-33.336|=0.113

So then we select the smalles value on this case \delta =0.113

e) For this case if we assume a tolerance of \epsilon=\pm 1C for the temperature and a tolerance for the power input \delta =0.113 we see that:

lim_{x \to a} f(x) =L

Where a = 33.34 W, f(x) represent the temperature, x represent the input power and L = 203C

Step-by-step explanation:

For this case we have the following function

T(w)= 0.1 w^2 +2.156 w +20

Where T represent the temperature in Celsius and w the power input in watts.

Part a

For this case we need to find the value of w that makes the temperature 203C, so we can set the following equation:

203= 0.1w^2 +2.156 w +20

And we can rewrite the expression like this:

0.1w^2 +2.156 w-183=

And we can solve this using the quadratic formula given by:

w =\frac{-b \pm \sqrt{b^2 -4ac}}{2a}

Where a =0.1, b =2.156 and c=-183. If we replace we got:

w_1 = \frac{-2.156 -\sqrt{2.156^2 -4(0.1)(-183)}}{2*0.1}=-54.896

w_2 = \frac{-2.156 +\sqrt{2.156^2 -4(0.1)(-183)}}{2*0.1}=33.336

And since the power can't be negative then the solution would be w = 33.34 watts.

Part b

For this case we can find the values of w for the temperatures 203-1= 202C and 203+1 = 204 C. And we got this:

202= 0.1w^2 +2.156 w +20

0.1w^2 +2.156 w-182=

w_2 = \frac{-2.156 +\sqrt{2.156^2 -4(0.1)(-182)}}{2*0.1}=33.222

204= 0.1w^2 +2.156 w +20

0.1w^2 +2.156 w-184=

w_2 = \frac{-2.156 +\sqrt{2.156^2 -4(0.1)(-184)}}{2*0.1}=33.449

So then the range of voltage would be between 33.22 W and 33.45 W.

Part c

For this case \epsilon = \pm 1 since that's the tolerance 1C

Part d

For this case we can do this:

\delta_1 =|33.222-33.336|=0.116

\delta_2 =|33.449-33.336|=0.113

So then we select the smallest value on this case \delta =0.113

Part e

For this case if we assume a tolerance of \epsilon=\pm 1C for the temperature and a tolerance for the power input \delta =0.113 we see that:

lim_{x \to a} f(x) =L

Where a = 33.34 W, f(x) represent the temperature, x represent the input power and L = 203C

8 0
4 years ago
What do the y-intercept and the slope mean in the context of the example proplem
Strike441 [17]
In the equation of a straight line(when the equation is written as "y=mx+b), the slope is the "m" that is mutiplied on the x and the b is the y intercept where the line crosses the y axis
4 0
3 years ago
Dominic, Ralf and Peter have just eaten a HUGE Christmas meal. Dominic now weighs half as much as Ralf, and Peter weighs three t
Strike441 [17]
Dominic weighs 120.

I started laughing as soon as I saw this question...

It honestly made my day:)


4 0
3 years ago
If n is the term, what is the first integer value of n where the sequence 2n² is greater than 50?
Nezavi [6.7K]

Answer:

The 6th term is first integer value of n greater then 50 in the 2n^2 sequence.

Step-by-step explanation:

2n^2 sequence:

2,8,18,32,50,72

3 0
3 years ago
Other questions:
  • Write a function based on the given parent function and transformations in the given order
    7·1 answer
  • Rotational symmetries for a trapezoid
    10·1 answer
  • HELP!! Place the indicated product in the proper location on the grid. (3xy - 1) (4xy + 2)
    7·1 answer
  • What is an expression for the sale price of a bracelet that has been discounted 20% from its sticker price? evaluate the express
    13·1 answer
  • What is the surface area of the breadbox
    10·1 answer
  • Dave measures his calculator using erasers and paperclips. It is about 2 erasers long. Which is true?
    8·1 answer
  • Need help ASAP!!!!!!
    8·1 answer
  • I need help with this question about slope ​
    7·1 answer
  • Four business class railcars can hold a total of 260 passengers, How many passengers can travel per railcar?
    5·2 answers
  • What is a inequality that has a solution of x&gt;8<br><br> PLEASE ANSWER. WILL MARK BRAINIELST.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!