The temperature at sunrise is 42°F. Each​ hour, the temperature rises 7°F. Write an equation that models the temperature​ y, in degrees​ Fahrenheit, after x hours. What is the graph of the​ equation? Write an equation that models the temperature​ y, in degrees​ Fahrenheit, after x hours.

Answers

Answer 1

Answer:

y = 42 + 7x

Step-by-step explanation:

Answer 2

y=42+7x is the equation  that models the temperature​ y, in degrees​ Fahrenheit, after x hours.

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

Given that the temperature at sunrise is 42°F.

Each​ hour, the temperature rises 7°F.

We need to find the equation that models the temperature​ y, in degrees​ Fahrenheit, after x hours.

y=42+7x is the equation  that models the temperature​ y, in degrees​ Fahrenheit, after x hours.

We have to draw the graph by taking few points.

x     0    1      2       3

y    42   49   56    63

Hence, y=42+7x is the equation  that models the temperature​ y, in degrees​ Fahrenheit, after x hours.

To learn more on Equation:

https://brainly.com/question/10413253

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The Temperature At Sunrise Is 42F. Each Hour, The Temperature Rises 7F. Write An Equation That Models

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Answer:

No

Step-by-step explanation:

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Answer:

x = 24.571

Step-by-step explanation:

A circles angle is 360 degrees, so you can work out x by equalling everything to 360

360 = 5x + 12 + 9x + 4

360 = 14x + 16

360 - 16 = 344

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344 ÷ 14 = 24.571

x = 24.571

So the smaller angle is 225°

And the bigger angle is 135°

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Answer:

t ≤ -135

Step-by-step explanation:

multiply each side by 5 which then cancels out the 5 in the fraction then turns -27 into -135. Since we multiplied negatives we flipped the sign.

_(4x+9)=36X+81
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Answer:

x = − 9 X − 18

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Step-by-step explanation:

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5.123

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Just need to move the decimal two times to the left because there are two zeros.

In a store at the local mall, the price for sweaters was $30 each. In October, the price was raised by 20%. In December, the price was raised by 40%. What is the price of a sweater in this store now?

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Answer:

Your answer

50.4 $

Mark it as Brainlist. Follow me for more answer.

Step-by-step explanation:

Determine the slope & y intercept for the line shown . Then write the equation of the line . If you hurry I’ll mark you brainliest

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Answer:

y = 1/4x + 2

Step-by-step explanation:

slope is 2/8 which is simplified to 1/4

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Which graph represents the function?

f(x)=1x−1−2

IS MY ANSWER CORRECT????

Answers

Yes your answer is right

You can use the graph given to form the equation and using the fact that as the denominator goes towards zero, the fraction outputs immensely big magnitude numbers(tending to arbitrarily large numbers)

The equation for the given graph can be:

[tex]f(x) = \dfrac{1}{(x-1)} - 2[/tex]

How to find the function which was used to make graph?

There are many tools we can use to find the information of the relation which was used to form the graph.

A graph contains data of which input maps to which output.

Analysis of this leads to the relations which were used to make it.

For example, if the graph of a function is rising upwards after a certain value of x, then the function must be having increasingly output for inputs greater than that value of x.

If we know that the function crosses x axis at some point, then for some polynomial functions, we have those as roots of the polynomial.

Using the graph to form the equation

Since the graph goes to negative infinity as it comes from left side of 1 towards 1, and goes to positive infinity as it comes from the right side of 1, thus, there might be x-1 in denominator which takes the magnitude to infinite and sign to + if x > 1 and to - if x < 1

Now since the graph intersects the y axis at y = -3, thus, we need the function to be such that putting x = 0 in the function  outputs -3 as value of the function.

Thus,

[tex]f(0) = -3[/tex]

Since putting 0 in [tex]\dfrac{1}{(x-1)}[/tex] gives -1 as answer, we have to subtract 2 more.

Thus, we have:

[tex]f(x) = \dfrac{1}{x-1} - 2[/tex]

Checking it, as the graph intersects the x axis at 1.5, putting f(x) = 0 should give us x = 1.5,

[tex]f(x) = \dfrac{1}{x-1} - 2\\\\0 = \dfrac{1}{x-1} - 2\\\\2(x-1) = 1\\\\x = 1 + \dfrac{1}{2} = 1.5[/tex]

It is correct.

Thus,

The equation for the given graph can be:

[tex]f(x) = \dfrac{1}{(x-1)} - 2[/tex]

Its graph is attached below.

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What is the length of the base of a right triangle with an area of 15 square meters and a height of 3 meters?
5 m
10 m
30 m
45 m

Answers

Answer:

10 m

Step-by-step explanation:

I did the test

Answer:

10m

Step-by-step explanation:

I did the test on k12 and it was correct !

trigonometry problem​

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Answer: -3π/2

Step-by-step explanation:

The unit circle is tricky, but here are some things to know:

When measuring angles, you usually move in the counter-clockwise direction. If you are moving clockwise (like shown in your picture), the angle will be negative. The unit circle is typically measured in radians, not degrees

              - To convert from radians to degrees, multiply by 180/π

              - To convert from degrees to radians, multiply by π/180

The whole unit circle measures 2π (360 degrees). This means that the positive x-axis can be referred to as 0 or 2π, the positive y-axis is referred to as π/2, the negative x-axis is referred to as π, and the negative y-axis is referred to as 3π/2.

              -If the angle is negative, switch the signs of the axis above.

The information above is all you need to answer the above question, but if you want/need anything else on the unit circle, just let me know.

I want to put a ribbon trim around. my favorite circular rug. The rug has a radius of 4.5 meters. How long will the ribbon trim be? Hint: Find the circumference.​

Answers

Answer:

14.13

Step-by-step explanation:

4.5x3.14=14.13

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Answers

Answer:

-4/2 or -2/1

Step-by-step explanation:

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Answer:

-4/2

Step-by-step explanation:

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Help please.

Answers

Answer:

X actually equals 16 becaausw if yiu add 16+4 you get 20 and then you have to multiply 20 by 1 and you get 20 so x=16

Answer:

x = 16

I dont quite understand the x = 48 situation? But thats wrong if that's your answe

Step-by-step explanation:

So you have to find out what x is

in order to do that you have to work out the equation and whatever you do to one side you must do to the other side

simplify 1(x+4) = 20

x + 4 = 20

in order to get rid of 4 on one side you have to subtract it on both sides

so x = 16

You see, I can be myself now finally

In fact, there's nothing I can't be

I want the world to see you'll be with me



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Answers

The song is 'Hey, Soul Sister' by Train. The next 29 words are:

I want the world to see you be, with me

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Anyone got the answer? Would be nice pls

Answers

Answer:

20 cm^3

Step-by-step explanation:

The volume of a rectangular prism is V=length*width*height.  Therefore, to find the volume, plug in the values into the equation

V = (2/3)*5*6

V = 20 cm^3

124-(-12-52)*3
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Answers

The answer to the equation is 316

Answer:

124−(−12−52)(3) = 316

Step-by-step explanation:

if * is for multiplying then the answer is 316

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Answers

Answer:

13

Step-by-step explanation:

4 * 3 = 12

4 multiplied by 3 is 12, so the answer is 12

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Answer:

yes he is correct because if you where to graph B it would have a greater slope

Step-by-step explanation:

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Answer:

a + b = 93.8

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-16+4n


Just have to simplify

Suppose both factors in a multiplication problem are multiples of 10. Why might the number of zeroes in the product be different than the total number of zeroes in the factors?

Answers

Answer:

Multiplying factors whose products are multiples of 10 add to the number of zeros when factors are multiplied as multiples of 10s.

Step-by-step explanation:

Let the first five multiples of ten be

10*1= 10

10*2= 20

10*3=30

10*4=40

10*5= 50

Suppose we chose 20 and 50.

Now multiplying 20 with 50 we get

20*50= 1000

IF we count the total number of zeros in the factors ( 20 and 50) they are 2.

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This is because when we multiply 2 with 5 we get 10 which adds to the existing number of zeros ( i.e 2) and we get a total of 3 zeros.

And multiplying 10 with 50 we get

10*50= 500

IF we count the total number of zeros in the factors ( 10 and 50) they are 2.

But the number of zeros in the product (500) are also 2.

This is because when we multiply 1 with 5 we get 5 which does not add to the existing number of zeros ( i.e 2) and the total number of zeros remain the same.

Similarly multiplying 20 with 30 we get

20*30= 600

IF we count the total number of zeros in the factors ( 20 and 30) they are 2.

But the number of zeros in the product (600) are also 2.

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Answers

Answer:

h = 6 cm

Step-by-step explanation:

Volume of cylinder = 54 π cm³

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ur answer is c



dbjdbdnsbsjeej have a good day
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Explain the difference between an x and a y-intercept.

Answers

Step-by-step explanation:

so pretty much y= is the line that goes up and it has its own numbers right. the x= is the line that goes at the bottom right right

what is the equation of a line when m = -7 and b = -8?

Answers

Answer:

Step-by-step explanation:

y = mx+b

y = -7x - 8

Answer:

y=-7x-8

Step-by-step explanation:

y=mx+b

m=slope

b=y intercept

1000 points!

Match the civilization with the region it was located in:

1. Safavid
Anatolia
2. Mughal
Iran
3. Ottoman
India

Answers

Answer:

1. iran

2. South asia

3.Anatolia

Step-by-step explanation:

hehe

Answer:

1. iran

2. South asia

3.Anatolia

Step-by-step explanation:

Shawna needs a new bed pillow. One store
was selling TWO pillows for $19.00. How
much would Shawna pay for ONE pillow?

Answers

Answer:

$9.5

Step-by-step explanation:

All you have to do is divide 19 by 2 to get the cost of one pillow. I hope this helps :)

Answer:

$9.50

Step-by-step explanation:

P is Pillows

2P=$19.00

divide by 2 in both sides

P=$9.50

so 1 pillow costs $9.50

5. A mountain has a base and peak that are inaccessible. At point A, the angle of elevation of the peak is
30°. One kilometer closer to the mountain, at point C, the angle of elevation of 35º. Find the height
PB of the mountain.

Answers

Answer:

1.366km

Step-by-step explanation:

The height of the mountain is [tex]3.34Km[/tex]

Right angle triangle:

A diagram of right angle triangle PBA is attached below which describe the situation as given in the question.

Let us consider that H represent the height of mountain.

Angle of elevation at point A and C shown in the diagram.

Apply tan function in triangle CBP.

            [tex]tan(35)=\frac{H}{x} \\\\H=xtan(35)=0.7x.........(1)[/tex]

Apply tan function in triangle ABP.

           [tex]tan(30)=\frac{H}{x+1}\\ \\(x+1)tan(30)=H\\\\(x+1)=\sqrt{3}H\\ \\x=\sqrt{3}H-1........(2)[/tex]

Substituting the value of equation 2 into equation 1.

      [tex]H=0.7(\sqrt{3}H-1)\\\\H=1.21H-0.7\\\\0.21H=0.7\\\\H=0.7/0.21=3.34Km[/tex]

Hence, The height of the mountain is [tex]3.34Km[/tex]

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solve for z 7z + 4 - 9z = 8 (also please don't have the answer be a negative)

Answers

Answer:

z = -2

Step-by-step explanation:

lol okay If it said that

Mia and her children went into a bakery where they sell cupcakes for $2.75 each and
brownies for $1.25 each. Mia has $30 to spend and must buy at least 14 cupcakes
and brownies altogether. If x represents the number of cupcakes purchased and y
represents the number of brownies purchased, write and solve a system of
inequalities graphically.

Answers

Answer:

[tex]x = 8.5[/tex] and [tex]y = 5.3[/tex]

Step-by-step explanation:

Given

[tex]x = cupcakes[/tex]

[tex]y = brownies[/tex]

From the first statement:

[tex]2.75x + 1.25y = 30[/tex]

From the second statement:

[tex]x + y \le 14[/tex]

Required

Solve graphically

I've written the equations (above) and they are:

[tex]x + y \le 14[/tex]

[tex]2.75x + 1.25y = 30[/tex]

See attachment for graph.

The blue line represents [tex]2.75x + 1.25y = 30[/tex]

The shaded part of the graph represents [tex]x + y \le 14[/tex]

From the graph, the solution is:

[tex]x = 8.5[/tex]

[tex]y = 5.3[/tex]

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