The definition of temperature is a measurement of how warm or cold an object or substance is in relation to a reference value.
Explain about the temperature?
An assessment of a material's or, more broadly, of any physical system's capacity to transport heat energy to another physical system. The average kinetic energy of a substance's molecules and its temperature are strongly connected.
The average kinetic energy of one atom or molecule is only revealed by the measurement of temperature. As a result, when we use the terms hot or cold to describe something, we are usually referring to something else.
Fahrenheit, Celsius, and Kelvin are the three scales that are most frequently used to measure temperature (K). Utilizing materials that expand or contract when heated or cooled, thermometers monitor temperature.
Since 6x36 is 216, the temperature climbed by 216 degrees.
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What is the measure of ∠ 1 if ∠ 1 is (2x-3) and ∠is (8x)
We know that:
[tex]\angle1+\angle2=180\degree[/tex]Then we have:
[tex]\begin{gathered} (2x-3)\degree+(8x)\degree=180\degree \\ (10x)\degree-3\degree=180\degree \\ (10x)\degree=183\degree \\ x=\frac{183\degree}{10} \\ x=18.3\degree \\ \angle1=2\cdot18.3\degree-3\degree \\ \angle1=33.6\degree \end{gathered}[/tex]look at the Pentagonal figure with the dimensions shown in the diagram what is area of the figure ?.
Area of Pentagonal figure = 368 feet²
Explanation:To find the area of the Pentagonal figure, we need to divide the shape into figures we can easily find their areas.
The Pentagonal figure comprise of a triangle and a rectangle.
Area Pentagonal figure = Area of triangle + Area of rectangle
Area of triangle = 1/2 base × height
base = 5 ft, height = 12 ft
Area = 1/2 × 5 × 12 = 30
Area of triangle = 30 feet²
Area of rectangle = length × width
length = 26ft, with = 13 ft
Area of rectangle = 26 × 13
Area of rectangle = 338 feet²
Area of Pentagonal figure = 30 feet² + 338 feet²
Area of Pentagonal figure = 368 feet²
Lisa has 1/3 of a chocolate bar. Minah on the other hand, has 2/3 more. They both calorie wise equal 3020. How much calories do Lisa have? How much calories do Minah have?
Does this question make sense? If so, what's the answer?
HELP.
Answer: lisa should have about 1006 cal minah should have 2014 cals thequestion has some spelling errors like "How much calories do Lisa have?" and "How much calories do Minah have?"
Which statement is true of this function?
f(x) = (1) ² - 2
..........................................
1. Tina is getting ready to take the final exam for MAT 143. Her averages before the final exam are given.
Test average-68 Hand-in-Assignment average = 75
MML average 90
The Test is 60% of the grade, Hand-in Assignment is 10% of the grade, MML is 10% of the grade
and the Final exam is 20% of the grade.
a) What should she score in the final exam to make a B (minimum 80) in the class? Note that the
maximum you can earn in the final exam is 100 points. Use PCC grading scale.
b) What should she score in the final exam to make a C (minimum 70) in the class? Note that the
maximum points you can earn in the final exam is 100 points. Use PCC grading scale.
Using the weighted mean, the minimum scores needed are given as follows:
a) To earn a B: Not possible.
b) To earn a C: 63.5.
How to obtain the weighted mean?The weighted mean is obtained by the sum of all elements in a data-set multiplied by it's weight, divided by the sum of the weights.
If these weights are proportions, then the weighted mean is given by the sum of each grade multiplied by it's proportion.
In the context of this problem, Tina grades are given as follows:
68 with a weight of 0.6.75 with a weight of 0.1.90 with a weight of 0.1.x with a weight of 0.2.Hence her final grade is given as follows:
G = 68 x 0.6 + 75 x 0.1 + 90 x 0.1 + 0.2x = 57.3 + 0.2x.
For a grade of B, the minimum score is given as follows:
57.3 + 0.2x = 80
0.2x = 22.7
x = 22.7/0.2
x = 113.
Hence it is not possible to earn a B, as the maximum possible score is of 100.
For a grade of C, the minimum score is given as follows:
57.3 + 0.2x = 70
0.2x = 12.7
x = 12.7/0.2
x = 63.5.
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13 over 11 equals 4 over uWhat is the proportion of u?
What is the solution of to the system of the equation
The solution to the system of equation is (3, 2)
How to solve system of equation?The system of equation can be solved as follows:
y = 4x - 10
y = 2
Therefore, using substitution method, let's substitute the value of y in equation(i)
2 = 4x - 10
add 10 to both sides of the equation
2 + 10 = 4x - 10 + 10
12 = 4x
divide both sides by 4
x = 12 / 4
x = 3
Therefore, the solution is (3, 2)
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Margaret has a monthly clothes budget of 50 she maps the Amy of money she spends each month to the number of items of clothing she buys what constraints are there on the domain
It is said that the graph plotted is the money spent to the number of items of clothing bought.
It will look like this:
The domain by definition is the set of inputs.
The constraint on the domain here is the monthly spending cannot be greater than $50.
So the domain will be [0,50] in dollars on the x-axis.
Find sin 2x, cos 2x, and tan 2x if cosx= 5/13 and x terminates in quadrant IV.
Consider the following expression:
[tex]\cos(x)=\frac{5}{13}[/tex]this expression can be represented in the following right triangle:
To find y, we can apply the Pythagoras theorem as this:
[tex]y=\sqrt{13^2\text{ - 5}^2}\text{ = 12}[/tex]but since x terminates in quadrant IV, we have that
[tex]y=\text{ - 12}[/tex]and thus
[tex]\sin(x)=\text{ -}\frac{12}{13}[/tex]and
[tex]\tan(x)=\text{ -}\frac{12}{5}[/tex]now, using this data in the following formulas:
we can conclude that the correct answer is:
Answer:[tex]\sin(2x)=\text{ -}\frac{120}{169}[/tex][tex]\cos(2x)=\text{ - }\frac{119}{169}[/tex][tex]tan(x)=\frac{120}{119}[/tex]Could any one help me figure out the last two parts? Thanks
Given the equation of a quadratic function:
[tex]f(x)=x^2-3x-28[/tex]First, we will find the x-intercepts to find the largest x-intercept
So, substitute f = 0, then solve for x as follows:
[tex]\begin{gathered} x^2-3x-28=0 \\ (x-7)(x+4)=0 \\ x-7=0\rightarrow x=7 \\ x+4=0\rightarrow x=-4 \end{gathered}[/tex]So, The largest x-intercept = 7
Second, we will find the y-coordinate of the y-intercept
So, substitute x = 0
[tex]f(x)=(0)^2-3(0)-28=-28[/tex]So, The y-coordinate of the y-intercept = -28
Just wondering how I would get the area of the middle part, I have both the triangles and one square down, I just can’t get the middle one.
The total area = Area of a right angle triangle + rectangle
The area of triangle = 1/2 x b x h
base = 11
Height = 8
Area of a triangle = 1/2 x 8 x 11
Area = 8 x 11 / 2
Area = 88/2
Area = 44 square inches
For the first rectangle
Area = Length x width
Length = 11 inches and width = 9 inches
Area = 11 x 9
Area = 99 square inches
Heather is considering purchasing an item that costs $9. The sales tax in Heather's area is set at 5.9%. What is the total purchase price that Heather would be charged on this purchase?
The total purchase price that Heather would be charged on this purchase is $10.
Solution:
Total charge = $9 x (1 + 0.059)
Total charge = $9 x 1.059
Total charge = $9.531
Total charge ≈ $10.
To calculate sales tax multiply the purchase price by the sales tax rate. Don't forget to convert the sales tax rate from percentage to decimal. When sales tax is calculated, it will be added to the purchase price. The result is the total cost and these are paid by the customer. Most states impose sales tax on top of the cost of each item you purchase.
The total amount you actually pay for the purchase is called the gross price and the price before tax is called the net selling price. To calculate the sales tax on an item, you must first convert the pre-tax cost of the item to a decimal and then multiply it by the sales tax percentage. Once sales tax is calculated, it must be added to the pre-tax value to determine the total cost of the item.
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what is the first step to solving 3.7x-15.9=2.79
The first step to solving the expression:
[tex]3.7x\text{ - 15.9 = 2.79}[/tex]We need to transfer that term that doesn't have "x" from the left side to the right side. To do this we need to invert its signal as shown below:
[tex]3.7x=2.79+15.9[/tex]The second step is to sum the terms with similar letters or no letters at all.
[tex]3.7x\text{ = }18.69[/tex]The third step is to isolate the "x" variable by switching the constant that is multiplying it from the left side to the right side. To do that the constant needs to divide on the right.
[tex]\begin{gathered} x\text{ = }\frac{18.69}{3.7} \\ x\text{ = }5\text{.}05 \end{gathered}[/tex]Suposse you ran 2 km in 10 min. With what speed did you run?
Answer:
12km/h
Step-by-step explanation:
10*6=60min=1hr
2*6=12km
Suppose 4.2 liters of water come out of the faucet each minute. For how many minutes was the faucet on if 52.5 liters of water came out
Answer:
12.5 minutes
Explanation:
Given that:
Number of liters of water come out of the faucet each minute = 4.2 liters
To find the time(in minutes) required for 52.5 liters of water to come out from the faucet.
Number of minutes required = Quantity of water come out from the faucet/ Number of liters of water come out per minute
[tex]\begin{gathered} =\frac{52.5}{4.2} \\ =12.5\text{ minutes} \end{gathered}[/tex]12.5 minutes required for 52.5 litres of water to come out from the faucet.
How do I find the inserting the missing values? at the rows? How can I Write the rule ,in terms of s and t, to show how t is related to s?
Find: the missing value in the table
Expalantion: i)
[tex]52[/tex][tex]1+\frac{3}{4}\times52[/tex][tex]40[/tex]ii)
[tex]\begin{gathered} 1+(\frac{3}{4}\times x)=55 \\ x=\frac{54\times4}{3} \\ x=72 \end{gathered}[/tex]so the answer of second part will be
[tex]72[/tex][tex]1+(\frac{3}{4}\times72)[/tex]A phone company has a monthly cellular plan where a customer pays a flat monthly fee and then a certain amount of money per minute used on the phone. If a customer uses 410 minutes, the monthly cost will be $71.50. If the customer uses 720 minutes, the monthly cost will be $118.Find a linear equation for the monthly cost of the cell plan as a function of x, the number of monthly minutes used. Type your answer in slope intercept form (y=mx+b) without any spaces between the characters. The function is C(x)=AnswerUse your equation to find the total monthly cost if 687 minutes are used. The cost will be $Answer
The cost for 410 minutes is $71.50 and cost for 720 minutes is $118.
Determine the equation for (410,71.50) and (720,118).
[tex]\begin{gathered} y-71.50=\frac{118-71.50}{720-410}(x-410) \\ y-71.50=\frac{46.5}{310}(x-410) \\ y=0.15(x-410)+71.50 \\ y=0.15x-61.5+71.50 \\ =0.15x+10 \end{gathered}[/tex]So function is C(x) = 0.15x + 10.
Substitute 687 for x in equation to determine the cost for 687 minutes.
[tex]\begin{gathered} C(687)=0.15\cdot687+10 \\ =103.05+10 \\ =113.05 \end{gathered}[/tex]So monthly cost if 687 minutes used is 113.05.
please help me do this i think i’mdoing it right but i’m not sure The graph shows a parabola and its focus. Write the equation of the parabola in vertex form.
Step 1
Write the parabola in vertex form eqaution
[tex](x-h)^2=-4a(y-k)[/tex]where
[tex]\begin{gathered} h=0=x-\text{coordinate of the vertex} \\ k=1=y-\text{coordinate of the vertex} \end{gathered}[/tex]Step 2
Find the required equation
The distance between the vertex and the focus = a
Therefore,
[tex]\begin{gathered} \text{The vertex=(0,1)} \\ \text{The focus= (0,-2)} \end{gathered}[/tex]Hence with the formula for the distance between two points we have
[tex]\begin{gathered} D=\sqrt[]{(0-0)^2+(-2-1)^2}^{}_{} \\ D=\sqrt[]{0^2+(-3)^2} \\ D=\sqrt[]{0+9} \\ D=\sqrt[]{9} \\ D=3 \\ a=D=3 \end{gathered}[/tex]Step 3
Get the required equation by substitution
[tex]\begin{gathered} (x-h)^2=-4(a)(y-k) \\ (x-0)^2=-4(3)(y-1) \\ x^2=-12(y-1) \end{gathered}[/tex]Hence in vertex form, the equation of the parabola will be
[tex]y=-\frac{1}{12}x^2+1[/tex]The answer is written as;
[tex]y=-\frac{1}{12}x^2+1[/tex]please answer the following questions. the first one is answered
Since we have a table for the function, every time we have a value for x, we look for it on the x column and the f(x) value will be the value in the samr row on the f(x) column.
Similarly, if we have a value of f(x), we look for it in the column f(x) and get the corresponding x.
So, if we have f(x) = 1, we see that this value is in the 7th row, and the corresponding x is 6, so x = 6.
For f⁻¹(x) we do the same but switching the columns.
So, to find f⁻¹(9), we would normally look for x = 9, but since it is f⁻¹ we look for f(x) = 9, which is in the 6th row and the corresponding x is 5, so f⁻¹(9) = 5.
For f⁻¹(x) = 6, we would look for 6 on f(x), but since it is f⁻¹ we look for x = 6, which is in the 7th row and the corresponding f(x) is 1 so x = 1.
[tex]5 ( a - 5 ) 25[/tex]5 ( a - 5 ) 25
The value of the variable a in the equation is a = 10
What is a linear equation?A linear equation is any equation with a constant rate
How to evaluate the equation?The equation is given as
5(a - 5) = 25
Open the brackets in the above equation
So, we have the following equation
5a - 5 * 5 = 25
Evaluate the products in the above equation
So, we have the following equation
5a - 25 = 25
Add 25 to both sides of the equation
So, we have the following equation
5a - 25 + 25 = 25 + 25
Evaluate the sum in the above equation
So, we have the following equation
5a = 50
Divide both sides by 5
So, we have
5a/5 = 50/5
Evaluate the quotient
a = 50/5
Evaluate the quotient
a = 10
Hence, the solution to the equation is a = 10
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Write out the Harmonic Sequence
Answer:
Step-by-step explanation:
maybe try to add pollyonxies
hello please help me out with this and provide an explanation. thanks
We are given the following equation that models the height of a ball:
[tex]h(t)=15t-4.9t^2[/tex]part a) is to find the distance traveled by the ball in the interval [1,3], to do that we replace the values of t=1 and t=2 in the equation, like this
[tex]\begin{gathered} h(1)=15(1)-4.9(1)^2=11 \\ h(3)=15(3)-4.9(3)^{2^{}}=0.9 \end{gathered}[/tex]The total distance is the difference between the two points, that is:
[tex]h(1)-h(3)=11-0.9=10.1[/tex]WILL GIVE BRAINS HELP ME OUT
Answer:
First translation: Horizontal Translation
Second Translation: Reflection over horizontal line
Step-by-step explanation:
Reflection over a line creates a mirror image of the original image relative to the line
Horizontal translation shifts the image to the right or left only relative to the original position and along the x-axis only
Actually, first translation =reflection over horizontal line and second translation of horizontal translation will also result in the same.
35•43=43•t what is the value of t
35
Step-by-step explanation:
since 35.43then43.t= 35
Graph the solution set.-10x≤2y
To be able to determine the graph of this inequality, we'll start rearranging the inequality putting the "y" variable at the left side of the equation.
[tex]\begin{gathered} -10x\leq2y \\ \frac{-10x}{2}\leq\frac{2y}{2} \\ -5x\leq y \\ or \\ y\ge-5x \end{gathered}[/tex]Since the inequality here is greater than or equal to, this means that the shade is above the solid line.
This equation also has a slope of -5 and y-intercept of 0.
Therefore, the graph of this equation looks like this:
Simplify: 21 + 14 + (-18) + (-3) +4
Answer:
Step-by-step explanation:
21 + 14 + (-18) + (-3) +4= 18
21+14=35
35+-18=17
17+-3=14
14+4=18
Hopefully this Helped! :)
Using the indicated slopes of lines and L1 and L2, determine whether the lines are parallel, perpendicular, or neither.Assume that the lines are not the same. M1= 4/7, M₂= -7/4 Choose the correct answer below. a)Parallel b)Perpendicular c)Neither
the lines are perpendicular (option B)
Explanation:
For L1 and L2 to be parallel, their slopes must be equal
That is: M1 = M₂
The given slope: M1= 4/7, M₂= -7/4
Hence, they are not parallel as they are not equal
For the lines to be perpendicular, one of the the slope will be the negative reciprocal of the other one:
M1 = 4/7
Reciprocal of M1 = 7/4
Reciprocal means inverse. For
Negative Reciprocal of M1 = -7/4
This is equal to M₂
Hence, the lines are perpendicular (option B)
Name the reference angle in radians for an angle of -315 degree
The angle of -315 degree means angle of 315 degree in clockwise direction from the positive x-axis.
The angle -315 degree means that angle lies in first quadrant as,
So measure of reference angle is,
[tex]360-315=45[/tex]Reference angle in radians is,
[tex]45\cdot\frac{\pi}{180}=\frac{\pi}{4}[/tex]So reference angle of -315 degree in radians is,
[tex]\frac{\pi}{4}\text{ radians}[/tex]Round 9.948 to the nearest whole number.
Answer: 9.900
i had this before the answer is right.Decide whether the relation defines y as a function of x. Give the domain.y=√(x-3)Is the equation a function?1)No 2)Yes
By definition, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.
In our equation, for each x value we have exactly one corresponding y-value, therefore, the following equation
[tex]y=\sqrt{x-3}[/tex]is indeed a function of x. The domain is the set of all possible inputs. The argument of a square root can't be negative, therefore, we have the following restriction:
[tex]x-3\geq0\implies x\geq3[/tex]In interval notation, our domain is:
[tex]\lbrack3,\infty)[/tex]