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
Anastasy [175]
2 years ago
11

Please help, make sure to do a step by step so i'm not cheating, i just need some help .

Mathematics
1 answer:
sashaice [31]2 years ago
8 0
If I am correct it should be the second one
You might be interested in
What are the correct answers?
Galina-37 [17]

Answer:

A function is a relation between sets where for each input, there is exactly one output.

1) Yes

2) Yes

3) Yes

4) No

8 0
2 years ago
Read 2 more answers
What value of x makes the equation true?
Aleksandr [31]
♥ Answer: x=-6.9

Solve:
You need to <span>Simplify both sides of the equation.
</span>806.265=-116.85x
Now: <span>Flip the equation.
</span>-116.85x=806.265<span>
</span>Lastly <span>Divide both sides by -116.85.
</span>\frac{-116.85x}{-116.85} = \frac{806.265}{-116.85}


Final answer: x=-6.9


6 0
3 years ago
HELP I WILL MAEK BEAINLIST PLEASE
wolverine [178]

Answer:

260,548668 or 260.55 round to the nearest hundreds  

Step-by-step explanation:

Area of the trapezoid:

[(major base + minor base)x height]/2

[(22 + 12) x 12]/2 = 204 cm^2

radius = diameter / 2 = 12 / 2 = 6 cm

Area of a semicircle

(radius^2 x pi)/2 = (6^2 x pi)/2 = 56.548668 cm^2

total area = 204 + 56,548668 = 260,548668 cm^2

6 0
2 years ago
steve paid 10% tax on a purchase of 40$ . select the dollar amount of the tax ad the total dollar amont steve paid on the number
poizon [28]
$4 is the amount of tax Steve paid 
4 0
2 years ago
Read 2 more answers
A rancher wishes to build a fence to enclose a 2250 square yard rectangular field. Along one side the fence is to be made of hea
Bess [88]

Answer:

The least cost of fencing for the rancher is $1200

Step-by-step explanation:

Let <em>x</em> be the width and <em>y </em>the length of the rectangular field.

Let <em>C </em>the total cost of the rectangular field.

The side made of heavy duty material of length of <em>x </em>costs 16 dollars a yard. The three sides not made of heavy duty material cost $4 per yard, their side lengths are <em>x, y, y</em>.  Thus

C=4x+4y+4y+16x\\C=20x+8y

We know that the total area of rectangular field should be 2250 square yards,

x\cdot y=2250

We can say that y=\frac{2250}{x}

Substituting into the total cost of the rectangular field, we get

C=20x+8(\frac{2250}{x})\\\\C=20x+\frac{18000}{x}

We have to figure out where the function is increasing and decreasing. Differentiating,

\frac{d}{dx}C=\frac{d}{dx}\left(20x+\frac{18000}{x}\right)\\\\C'=20-\frac{18000}{x^2}

Next, we find the critical points of the derivative

20-\frac{18000}{x^2}=0\\\\20x^2-\frac{18000}{x^2}x^2=0\cdot \:x^2\\\\20x^2-18000=0\\\\20x^2-18000+18000=0+18000\\\\20x^2=18000\\\\\frac{20x^2}{20}=\frac{18000}{20}\\\\x^2=900\\\\\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}\\\\x=\sqrt{900},\:x=-\sqrt{900}\\\\x=30,\:x=-30

Because the length is always positive the only point we take is x=30. We thus test the intervals (0, 30) and (30, \infty)

C'(20)=20-\frac{18000}{20^2} = -25 < 0\\\\C'(40)= 20-\frac{18000}{20^2} = 8.75 >0

we see that total cost function is decreasing on (0, 30) and increasing on (30, \infty). Therefore, the minimum is attained at x=30, so the minimal cost is

C(30)=20(30)+\frac{18000}{30}\\C(30)=1200

The least cost of fencing for the rancher is $1200

Here’s the diagram:

3 0
2 years ago
Other questions:
  • Claire's three sons, from oldest to youngest, are Evan, Joel, and Alex. The difference between the ages of Evan and Joel is the
    13·1 answer
  • Information about movie ticket sales was printed in a movie magazine. in a sample of of fifty pg-rated movies, 36% had ticket sa
    5·1 answer
  • Kevin wants to buy an area rug for his living room. He would like the area rug to be no smaller that 48 square feet and no bigge
    6·1 answer
  • The probality of an event must be expressed as a percent
    15·2 answers
  • A teacher gave a test with 50 questions, each worth the same number of points donovan got 39 out of 50 questions right Marci's s
    11·1 answer
  • Simply 3x to the power of 2 of over 9x to the power of 5
    13·1 answer
  • Determine whether the statement is true or false. If it is false, rewrite it as a true statement. Data at the ratio level cannot
    12·1 answer
  • suppose another line for a chair lift is placed at a constant distance c below the gondola line. what is the equation of the new
    14·1 answer
  • Find the Height of this Figure
    13·2 answers
  • Two stores sell CDs in packages, as shown in the table below. Number of CDs in Package Cost Number of CDs in Package Cost CD Pri
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!