Mathematics College

Pleaseeeeeeeeeee helppppppppppppp

Answers

Answer 1

Answer:

Step-by-step explanation:

Trust me

Answer 2

(2+7-1) divided by 2^2 is 2

Related Questions

Centerville is the headquarters of Greedy Cablevision Inc. The cable company is about to expand service to two nearby towns, Springfield and Shelbyville. There needs to be cable connecting Centerville to both towns. The idea is to save on the cost of the cable by arranging the cable in a Y-shaped configuation. Centerville is located at ( 10 , 0 ) in the x y -plane, Springfield is at ( 0 , 5 ) , and Shelbyville is at ( 0 , − 5 ) . The cable runs from Centerville to some point ( x , 0 ) on the x -axis where it splits into two branches going to Springfield and Shelbyville. Find the location ( x , 0 ) that will minimize the amount of cable between the 3 towns and compute the amount of cable needed. Justify your answer.
To solve this problem we need to minimize the following function of x : f ( x ) =
We find that f ( x ) has a critical number at x =
To verify that f ( x ) has a minimum at this critical number we compute the second derivative f ' ' ( x ) and find that its value at the critical number is ,
a positive number. Thus the minimum length of cable needed is

Answers

Answer:

hi i dont understand this

Step-by-step explanation:

sorry

The function will be

[tex]f(x) = 9 - x + \sqrt[2]{ {x}^{2} + 9} [/tex]

and minimum value required will be

[tex]9 + \sqrt[3]{3} [/tex]

How to solve this problem?

The steps are as follow:

[tex]f(x) = (9 - x) + \sqrt[2]{ (x^2 + 3^2) } \\ =(9 - x) + \sqrt[2]{ (x^2 +9)} \\ f(x) = \frac{2x}{ \sqrt{ {x}^{2} + 9} } - 1 \\ f(x) = 0 \\ \frac{2x}{ \sqrt{ {x}^{2} + 9} } - 1 = 0 \\ \frac{2x}{ \sqrt{ {x}^{2} + 9}} = 1 \\ 2x = \sqrt{ {x}^{2} + 9} \\ 4{x}^{2} = { x}^{2} + 9 \\ 3 {x}^{2} = 9 \\ {x} = \sqrt{3} [/tex]

so putting value of in f(x) we will get

[tex]f( \sqrt{3} ) = 9 - \sqrt{3} + \sqrt[2]{ { (\sqrt{3} )}^{2} + 9} \\ = 9 + 2 \sqrt{3} [/tex]

So The function will be

[tex]f(x) = 9 + \sqrt[2]{ {x}^{2} + 9}[/tex]

and minimum value required will be

[tex]9 + \sqrt[3]{3} [/tex]

Learn more about functions here:

https://brainly.com/question/2833285

#SPJ2

8 cm
3 cm
4 cm
7 cm
4 cm
9 cm
3 cm

Answers

Answer:

area of the figure=(1/2×22/7×12²)+(12×4)+(8×3)

=226.28+48+24

=298.28

Complete the comparison : 17>?

Answers

Answer:

17>16

Step-by-step explanation:

Answer:

17 is greater than or (>) than any number lower than 17 :)

Step-by-step explanation:

For example, 17>16.. 17> 15, or 17> 14...ect.

Hope this helps! :)

Have a nice day <3

o
What is the factored form of 2x3 + 4x2 - x?

A. 2x(x2+2x+1)
B. x{2x2 +4x+1)
C. 2x(x2+2x-1)
D. x(2x² + 4x - 1)

Answers

Answer:

D .

Sorry if i'm wrong.

[tex]x(2 {x}^{2} + 4x - 1 )\\ = 2 {x}^{3} + 4 {x}^{2} - x[/tex]

Periodic grab some phase shifts

Answers

Answer:

The sine function is:

[tex]y(x)=\frac{2}{3}sin[3\pi (x-\frac{2\pi}{3})]-2[/tex]

Step-by-step explanation:

We need to recall that a sine function can write as:

[tex]y(x)=Asin[B(x+C)]+D[/tex]

Where:

A is the amplitude of the functionB is the periodC is the phase shift leftD is the vertical shift

So we just need to use the listed attributes

Therefore, the sine function is:

[tex]y(x)=\frac{2}{3}sin[3\pi (x-\frac{2\pi}{3})]-2[/tex]

I hope it helps you!

Find the area of the figure.
= m
(simplify your answer)

Answers

8400=m let me know if it is wrong and can I get a crown

A number increased by 20% of the number result is 11. What is the number?

Answers

Answer:

9.167

Step-by-step explanation:

120% is 11

100% is x

[tex]\frac{11*100}{120} \\\\= \frac{110}{12}\\[/tex]

≅ 9.167

WO-Step Equations Pra
Solve each equation.
1) 3+ 5r=-47

Answers

Answer:

r=-10 Hope this helps! If I could have brainliest I'm trying to level to level up.

Step-by-step explanation:

Let's solve your equation step-by-step.

3+5r=−47

Step 1: Simplify both sides of the equation.

5r+3=−47

Step 2: Subtract 3 from both sides.

5r+3−3=−47−3

5r=−50

Step 3: Divide both sides by 5.

5r/5=-50/5

r=−10

Answer:

r=−10

HELPP ASAP PLSS I’ll mark brainliest!!!

Answers

If the bags can either be given or not, each bag can assume one of two states. In order for there to be 200 possible combinations of items in one of two states, there must be at least log2(200) = 7.64 items. The minimum number of bags is x = 8.

_____

The contents of the 8 bags will be Rs. 1, 2, 4, 8, 16, 32, 64, 73.

A quantity with an initial value of 450 grows exponentially at a rate of 0.4% every 10
years. What is the value of the quantity after 96 years, to the nearest hundredth?

Answers

Answer:

467.58

Step-by-step explanation:

Grows 0.4% --> r = .004

Grows every 10 years: exponent of t/10

where t is in years

Write a function:

f(t) = 450(1+0.004)^t/10

96 years means no time conversion is needed due to years being the only unit in the problem

T = 96

f(96) = 450(1+0.004)^96/10

= 467.580247756

≈467.58

youre welcome y'all

19.214÷13
pls someone help me

Answers

Answer:

1.478

Step-by-step explanation:

A simple random sample of 50 undergraduates at Colby College found that 60% of those sampled felt that cheating was a problem among college students. A simple random sample of 50 undergraduates at Penn State University found that 70% felt that was cheating a problem among college students. The number of undergraduates at Colby College is approximately 1800; the number at Penn State is approximately 39,000.We conclude that:_________.
A) the sample from Colby College has much less sampling variability than that from Penn State.
B) the sample from Colby College has much more sampling variability than that from Penn State.
C) the sample from Colby College has almost the same sampling variability as that from Penn State.
D) it is impossible to make any statements about the sampling variability of the two samples because the students surveyed were different.

Answers

Answer:

Step-by-step explanation:

Please help me with the question

Answers

Answer:

4(7+y) and 4·7+4·y

Step-by-step explanation:

4(7+y)= 28+4y

4·7+4·y= 28+4y

Plz help ................

Answers

Answer:

D. g(x) = 2-x^2

Step-by-step explanation:

g(x) seems to be a vertical translation of f(x).

f(x) = 5-x^2

g(x) = 5-x^2-3 (subtract 3 as a translation down 3 units)

g(x) = 2-x^2

D is your answer

Step

4. Show the expanded notation for 2c + 5c

Answers

Answer:

Is the question really expanded notation

12. What is the perimeter of triangle ABC to
the nearest whole number?
A
19.5
49°
B
40°
C

Answers

Step-by-step explanation:

61.945

62the perimeter of triangle ABC to

the nearest whole number

What’s the answer to 7x when x=8 I need help please

Answers

Answer:

Step-by-step explanation:

7x8=56

Step-by-step explanation:

7(8)

= 56

use tye substitution property

Pls help I’m failing I need a good grade

Answers

The answer is B

Step-by-step explanation:

Answer:

Step-by-step explanation:

5th grade math. correct answer will be marked brainliest.

Answers

Answer:

common denominator: 48

Step-by-step explanation:

common denominator: 8x6=48

1/8 = 6/48

1/6= 8/48

13) A certain radioactive isotope decays at a rate of 0.1% annually. Determine the half-life of this isotope, to the
nearest year.
C) 301 yr
D) 500 yr
A) 7 yr
B) 693 yr

Answers

Answer:

se__xxxx cha_t

Step-by-step explanation:

aaah aaaah

The weekly amount of money spent on maintenance and repairs by a company was observed, over a long period of time, to be approximately normally distributed with mean $480 and standard deviation $20. How much should be budgeted for weekly repairs and maintenance so that the probability the budgeted amount will be exceeded in a given week is only 0.05

Answers

Answer:

$512.90 should be budgeted for weekly repairs and maintenance so that the probability the budgeted amount will be exceeded in a given week is only 0.05

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Normally distributed with mean $480 and standard deviation $20.

This means that [tex]\mu = 480, \sigma = 20[/tex]

How much should be budgeted for weekly repairs and maintenance so that the probability the budgeted amount will be exceeded in a given week is only 0.05?

This is the 100 - 5 = 95th percentile, which is X when Z has a pvalue of 0.95, so X when Z = 1.645.

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]1.645 = \frac{X - 480}{20}[/tex]

[tex]X - 480 = 1.645*20[/tex]

[tex]X = 512.9[/tex]

$512.90 should be budgeted for weekly repairs and maintenance so that the probability the budgeted amount will be exceeded in a given week is only 0.05

sketch a graph of the relation y=cos^-1x

Answers

I am not able to draw this, but if you have a graphing calculator use that, otherwise use Desmos on a computer, they can create a graph as well.

a triangle has angles that measure 50 degrees and 50 degrees what is the measure lf the third angle?

Answers

Answer:

Step-by-step explanation:

the combined angles of any triangle equal 180 degrees. take the known angles ( 50 and 50) and subtract their sum from 180. 180-100=80

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