The value V (in dollars) of a milling machine depends on the number of hours x it is operated as
given by the formula V = 750,000 - 120x. After one year, the value of the milling machine is
between $450,000 and $480,000.
Which range for the hours the machine is operated does this correspond to?

Answers

Answer 1

Basically, you have to understand the logic of a function.

V = 750,000 - 120x

If I plug in a value into V that represents the value of a milling machine, if I simplify the equation, I will be able to find x, the corresponding time to the value of the milling machine.

Knowing this logic, we can plug in $450,000 and $480,000, and then we will have two x-values. Then we can just find the range of the x-values to find our answer! :)

Let's go.

V = 750,000 - 120x

Plugged in 450,000 for V so now we can simplify the equation and find out what is the corresponding x-value for this value at this certain time.

450,000 = 750,000 - 120x

-450,000  -450,000

0 = 750,000 - 120x

+120x on both sides to isolate x

120x = 300,000

x = 2500

So, our first x-value in the range is 6250 hours. Now, let's plug in the larger value to find out the other x-value in the range.

V = 750,000 - 120x

480,000 = 750,000 - 120x

-480,000  -480,000

0 =  270,000 - 120x

Add 120x on both sides to isolate x

120x = 270,000

x = 2250

So, we found 2250 and 2500. So, the range of hours it corresponds to is 2250-2500.


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Step-by-step explanation:

Answer:

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Margot helps out at a horse farm. She spends 26 minutes one morning brushing a horse. She spends 39 minutes that same day brushing another horse. How many minutes does she brush horses in all?​

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∵V=lbh

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Step-by-step explanation:

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CHECK THE ATTACHEMENTS TOO.

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Flowers can contain one or both sexes of flower parts. D______ is the E_____is the E____is the G____is the All of these are male or female​

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Step-by-step explanation:

21.................

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Question:
Simplify.
(
2
9
×
3
5
)
×
(
2
4
×
3
)
2

Answers

Answer:

The answer is 526 1760

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XS30
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Answer:

A=307, c=187

Step-by-step explanation:

Help pls

••••••••••••••••

Answers

I'm so late sksksks

Answer:

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Step-by-step explanation:

The total area of the green surfaces

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= 1125 ft²

The area of each triangular surfaces

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= 67.5 ft²

The total area of triangular surfaces

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= 270 ft²

The total area of the figure

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= 1395 ft²

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Answers

Answer:

Wage of Jolene is 414.29 dollars per week

Step-by-step explanation:

Amount received by Jolene for planting a tree is 17 cents

Given

Total amount of trees planted in a week =   2437

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Wage of Jolene

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At the peak of a roller coaster ride, the rider's watch flew off his wrist. The height h in feet of the watch, t seconds after he lost it, is given by y= -16x^2 + 32x + 48. How many seconds did it hit the ground?​

Answers

Answer:

[tex]3 \: s[/tex]

Step-by-step explanation:

[tex]y = - 16 {x}^{2} + 32x + 48 \\ 0 = \frac{ - 16 {x}^{2} + 32x + 48 }{ - 16} \\0 = {x}^{2} - 2x - 3 \\ 0= {x}^{2} - 3x + x - 3 \\ 0= x(x - 3) + 1(x - 3) \\0 = (x + 1)(x - 3) \\ \\ x + 1 = 0 \\ x = - 1 \\ x - 3 = 0 \\ x = 3[/tex]

Hope this helps you.

Can I have the brainliest please?

Answer:

Step-by-step explanation:

You can't do anything but substitute for h and t in this question.

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Answer:

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Answer:

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Answer:

Square Meters to Square Inches Conversion 1 Square meter is equal to 1550.0031 square inches. To convert square meters to square inches, multiply the square meter value by 1550.0031.

The Least-squares problem that has minimal norm can be given using factorization.

What is  Least square method?

The least squares method is used to find the best fit for a set of data points by minimizing the sum of the offsets from the plotted curve. Singular value decomposition (SVD) is a factorization of a real or complex matrix.

here, we have,

It is a widely used technique to decompose a matrix into several component matrices, exposing many of the useful and interesting properties of the original matrix. The singular value decomposition, guaranteed to exist, is A=UΣV.

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The singular value decomposition (SVD) of matrix A is very useful in the context of least squares problems. It is also very helpful for analyzing the properties of a matrix.

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Complete question:

calculate least squares solution using svd a matrix has the singular value decomposition what is the solution to the least-squares problem that has minimal norm ?

a clock chimes every 20mins
a light flashes every 8 mins
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how many times between 8:01 and 12:30 will the clock chime and the light flash together?
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Answers

Answer: 6 times

Step-by-step explanation:

it is a lowest common multiple question. So we list the multiples

20                   8

40                   16

60                   24

80                   32

                      40

40 is our lowest common multiple. Which means every 40 minutes they flash and chime together.

so if we add 40 minutes onto 08:00 we get 08:40 and if we add it again we get 09:20 and again we get 10:00 and again we get 10:40 and again we get 11:20 and again we get 12:00. We have to stop here as if we add 40 minutes again we will go over the given time of 12:30. If we count how many times it was added. this adds to 6. therefore the answer is 6.  

hope this helped.

The clock will chime and the light flashes together 6 times.

How many times the clock will chime and light flash together?

The Least Common Multiple (LCM) of a group of numbers is the smallest number that is a multiple of all the numbers.It is the lowest common multiple question. So we list the multiple

20                   8

40                   16

60                   24

80                   32

                     40

40 is our lowest common multiple. This means every 40 minutes they flash and chime together.

so if we add 40 minutes onto 08:00 we get 08:40 and if we add it again we get 09:20 and again we get 10:00

and again we get 10:40 and again we get 11:20 and again we get 12:00. We have to stop here as if we add 40 minutes again we will go over the given time of 12:30.

If we count how many times it was added. this adds to 6. therefore the answer is 6.  

Therefore the clock will chime and the light flashes together 6 times.

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Answers

Answer:

the answer is 60

Step-by-step explanation:

please mark brainlts

free 100 pointssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss

Answers

You are very cool person

Answer:

Thank you for the points man I really need them to ask a huge question

Step-by-step explanation:

I answer your question, I get the points, I make the question, someone elce gets the points.

kelly raised flowers. in a compitions with other flower growers, she earned the scores below
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Answers

Answer:

Median: 9

Range: 4

mode: 9, 8, 11 (each appeared 2 times)

mean: 9.125 (average)

Step-by-step explanation:

I need help plz!!!!!!??!?!

Answers

Answer:

3848.45

Step-by-step explanation:

half 70

35

πr^2

π×35^2

Answer:

22/7×35×2

22/7×70

= 220cm²

For males in a certain town, the systolic blood pressure is normally distributed with a
mean of 120 and a standard deviation of 8. What is the probability that a randomly
selected male's systolic blood pressure will be less than 108, to the nearest
thousandth?

Answers

Answer:

0.89

Step-by-step explanation:

The probability that a randomly selected male's systolic blood pressure will be less than 108 is 0.25.

What is Probability?

Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.

Here, mean  = 110, standard deviation = 8

P = [tex]\frac{x_{mean}-x }{SD}[/tex]

P = (110 - 108)/8

P = 2/8 = 0.25

P(Z<0.25) = 0.5 - 0.25 = 0.25

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pick the Quadrant that you would plot (-6,-3)
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B.Quadrant II
C.Quadrant IV
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Answers

Answer C: Quadrant three

When graphed on a coordinate plane Beth’s house is located at (4, 3) and the coffee shop is located at the point (–2, –1).
What is the distance from Beth’s house to the coffee shop? Each grid line on the coordinate plane represents 1 mile.
10 miles
square root of 8
square root of 52
52 miles

Answers

Answer:

the answer is c square root 52

Step-by-step explanation:

just got a 100

The distance from Beth’s house to the coffee shop, which are graphed on a coordinate plane is √(52) units.

What is a distance formula?

The distance formula is used to measure the distance between the two points on a coordinate plane.

Let the two coordinate  point on a coordinate plane is ([tex]x_1,y_1[/tex]) and ([tex]x_2,y_2[/tex]). Thus, the distance between these two can be given as,

[tex]d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}[/tex]

When graphed on a coordinate plane Beth’s house is located at (4, 3) and the coffee shop is located at the point (–2, –1).

Here, each grid line on the coordinate plane represents 1 mile.

Using the distance formula for these point, the distance from Beth’s house to the coffee shop can be given as,

[tex]d=\sqrt{(4-(-2)^2)+(3-(-1))^2}\\d=\sqrt{6)^2+(4)^2}\\d=\sqrt{36+16}\\d=\sqrt{52}[/tex]

Hence, the distance from Beth’s house to the coffee shop, which are graphed on a coordinate plane is √(52) units.

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10.
The lines graphed below show the amounts of water in two tanks as they were being
filled over time.
TANK FILLING RATES
+
Amount of Water (gallons)
1,800
1,600
1,400
1,200
1,000
800
600
400
200
Tank A
Tank B
0
0.5
1 1.5 2
Time (minutes)
For each tank, explain whether or not there is a proportional relationship between
the amount of water, in gallons, and the time, in minutes. If there is a proportional
relationship, identify the unit rate. Use specific features of the graph to support
your answer
hp

Answers

Answer: Step-by-step explanation:

A proportional relationship exists. Since the graph is a straight line, you can say.

Tank A's unit rate is 666 2/3 gallons per minute. You'll figure it out by multiplying 1000 gallons by 1.5 minutes. 1000 divided by 1.5 equals 666.66 gallons, or 666 2/3 gallons.

The unit rate for Tank B is 300 gallons per minute. You can determine this by using 600 gallons in 2 minutes. 600/2 = 300 gallons per minutes

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