Answer:
9
Step-by-step explanation:
3 x 3 = 9
4 x 4 = 16
16 - 11 = 5
11 - 9 = 2
2 is less than 5 which makes it closer to 11.
Answer:
Ans = 9
Step-by-step explanation:
3 x 3 =9
4 x 4 =16
2 x 2 =4
maths question please help
The oven that has a higher price is the combination oven.
How to calculate the price?The normal price of the microwave will be illustrated as x. This will be:
(x - 1/3x) = 90.
2/3x = 90.
Cross multiply
2x = 3 × 90.
2x = 270
Divide
x = 270/2
x = 135
The normal price is £135
For the combination oven, the normal price will be:
(x - 0.4x) = 84
0.6x = 84
Divide
x = 84/0.6
x = 140
The price is £140
The combination oven is costlier.
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What is the y intercept?
Answer:
0
Step-by-step explanation:
The y -axis intercept also called the y intercept occurs when x = 0
y = 4/3 x put in x = 0
y = 4/3 (0) = 0
Answer:
The y-intercept is 0.
Step-by-step explanation:
The y-intercept is where the graph meets the y-axis.
Please help me! I have 15 minutes of the test left
Answer:
(0,15) The time it take to fill the ball with air
Step-by-step explanation:
On edge 2022
2. Perform the operation.
(8x² + 8x - 9) + (3x² + 5x)
Answer:
here is the, ans hope it helps :)
x = -13 ± (√ 565) / 22 is the solution to the operation
(8x² + 8x - 9) + (3x² + 5x) = 0.
∴ (8x² + 8x - 9) + (3x² + 5x) = 0
=> 8x² + 8x - 9 + 3x² + 5x = 0
=> 11x² + 13x -9 = 0
After obtaining the standard form a, b and c are identified from the original equation and are placed into the quadratic formula.
∴ x = (-b±√(b²-4ac))/(2a)
11x² + 13x -9 = 0
where,
a = 11, b = 13, c = -9
=> x = (-13 ± √(13² - 4×11(-9)) )/ (2×11)
=> x =( -13 ± (√ 565) )/ (22).
So, the solution to (8x² + 8x - 9) + (3x² + 5x) = 0 is x = -13 ± (√ 565) / 22.
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The complete question is -
Perform the operation:
(8x² + 8x - 9) + (3x² + 5x) = 0
each side of a square is increasing at a rate of 2 cm/s. at what rate is the area of the square increasing when the area of the square is 81 cm2?
The area of the square is increasing at a rate of 36 cm/s2.
What is the rate of expansion of a solid?
For physics, The term "thermal expansion" refers to a material's change in length, width, height, or volume when its temperature is raised or lowered. Solids exhibit particularly noticeable thermal expansion due to their closely packed atoms. There are numerous uses for the thermal expansion of solids in daily life.
A solid's atoms vibrate more quickly around their fixed positions when it is heated. As a result, there is little relative growth in the size of solids during heating. In order to prevent buckling when exposed to heat from the sun, metal train tracks feature tiny gaps.
Calculation
L = length of a side
A = L2
dA/dt = 2L dL/dt
dL/dt = 2 cm/s
A = 81 sqcm ⇒ L = √A = √81 cm = 9 cm
dA/dt = 2(9cm)(2 cm/s) = 36 sqcm
Hence the rate is the area of the square increasing is 36sqcm
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Using the rate of change of area ,
If the area of a square is 81 cm² the area of the square increases at a rate of 36 cm²/s.
Suppose that initially there were no squares, but suddenly squares began to form at a constant rate. At the end of the first second, the sides were 2 cm long each, and at the end of the second second they were 4 cm each. Therefore, we can say that the rate of change of increasing sides is 2 cm/s. If a square has a side of S cm, this is expressed mathematically.
dS/dt = 2 cm/s ---(1)
Since we know the area of the square is given by
A=S² cm²
the derivative of the area function shows the variation of area with respect to side S
dA/dS=2S
So , when area of square is 81 cm² , its side length is 9 cm. Since we need rate of change of area w.r.t. time, we need to multiply both the sides by dS/dt .
dA/dS×dS/dt=2S×dS/dt
=> dA/dt=2S×dS/dt
=> dA/dt = 2×9 ×2 = 36 cm²/s
Hence, the required area increasing rate is 36 cm²/s.
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3. Write an integer to represent 25 feet underground. Explain your answer.
Answer:
-25
Step-by-step explanation:
if you are 25 feet underground, you can use ground level as zero and go down from there.
Ryan will drive his car in spain. the speedometer in the car shows the speed in miles per hour only. he will be driving on a road with a speed limit of 100 kilometres per hour. ryan uses this rule to find this speed in miles per hour.
Answer:
the conversion factor
Step-by-step explanation:
The lengths of the four sides of a quadrilateral (in feet) are consecutive even integers
If the perimeter is 92 feet, find the value of the longest of the four side lengths.
The value of the longest of the four side lengths is 26 feet.
How to calculate the value?Let the integers be x, x + 2, x + 4 and x + 6.
Since the perimeter is given as 92 feet. This will be:
x + x + 2 + x + 4 + x + 6 = 92
4x + 12 = 92
Collect like terms
4x = 92 - 12
4x = 80
Divide
x = 80 / 4
x = 20
The longest side will be:
= x + 6.
= 20 + 6.
= 26 feet.
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An ordinary (fair) die is a cube with the numbers 1 through 6 on the sides (represented by painted spots)., Imagine that such a die is rolled twice in succession
and that the face values of the two rolls are added together. This sum is recorded as the outcome of a single trial of a random experiment.
Compute the probability of each of the following events.
Event A: The sum is greater than 9.
Event B: The sum is an odd number.
Write your answers as fractions.
5/36 is the probability that the sum will be bigger than 9, and 9/36 is the likelihood that the number will be divisible by either 5 or 6.
How to calculate a probability?Probability refers to potential. A random event's occurrence is the subject of this area of mathematics. The range of the value is 0 to 1. Probability has been incorporated into mathematics to predict the likelihood of different events.
Mathematics' study of random events is known as probability, and there are four primary types of probability: axiomatic, classical, empirical, and subjective. Since probability is the same as possibility, you could say that it is the likelihood that a specific event will occur.
Given ,
It may take the following forms:
(4,6),(5,5),(5,6),(6,5),(6,6)
The likelihood that the total exceeds 9 is 1/36+1/36+1/36+1/36+1/36
=5/36.
B) It can occur in the following ways:
(1,4),(4,1),(3,3),(3,2),(4,2),(5,1),(1,5),(6,4),(4,6)
the probability that the number is getting divisible by 5 or 6 or both is
1/36 +8 times
=9/36
Hence the probabilities are5/36 and 9/36.
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The graph shows the height of a plant after a certain amount of time measured in days. Do you think that there may be a proportional Do you think that there may be a proportional relationship between the number of hours and the amount of snow that fell? Explain your reasoningrelationship between the number of days and the height of the plant? Explain your reasoning. The graph shows how much snow fell after a certain amount of time measured in hours.
None of the two graphs in this problem represents proportional relationships, as pairs of (input,output) have different ratios in each case.
What is a proportional relationship?A proportional relationship is modeled as follows:
y = kx.
Then the constant is given by:
k = y/x.
A relationship will be proportional only if for all points of the relationship, the constant k assumes the same value.
Two points of the relation between height and days are:
(30,10) and (50,20).
The constants are:
k = 10/30 = 1/3.k = 20/50 = 2/5.Different constants, hence not proportional.
For the second graph, the different constants are 2/2 and 2/3, as the two points of the second graph on the image at the end of the answer are:
(2,2) and (2,3).
Missing InformationThe image presented at the end of the answer give the two graphs in which we verify if they are proportional or not.
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A line passes through the point (10,2) and has a slope of -3/2
Write an equation in point-slope form for this line
Answer:
y=-1,5x+17
Step-by-step explanation:
(10,2) => x=10, y=2
a - slope
a=-1,5
y=ax+b -linear equation
2=(-1,5)*10+b
2=-15+b
b=17
y=-1,5x+17
How do I make sure a parabola(quadratic function) equation goes through specific points using standard form? An example is an equation that goes through the points (-4,0), (3,0) and (2,-18).
NO TROLLS, PLEASE!
An equation that goes through the given points is [tex]y=3x^{2} +3x-36.[/tex]
What is the parabola equation?
A parabola is a graph of a quadratic function. An equation of a curve that has a point on it that is equally spaced from a fixed point and a fixed line is referred to as a parabola. The parabola's fixed line and fixed point are together referred to as the directrix and focus, respectively.
Given points are (-4,0), (3,0), and (2,-18).
The equation of a parabola is [tex]y = \frac{1}{4 \left(f - k\right)} \left(x - h\right)^{2}[/tex]
Since the point (−4,0) lies on the parabola, then [tex]0 = \frac{1}{4 \left(f - k\right)} \left(-4 - h\right)^{2} + k[/tex]
Since point (3,0) lies on the parabola, then [tex]0 = \frac{1}{4 \left(f - k\right)} \left(3 - h\right)^{2} + k[/tex]
Since point (2,−18) lies on the parabola, then [tex]-18 = \frac{1}{4 \left(f - k\right)} \left(2 - h\right)^{2} + k[/tex]
Solving the above all three systems, we get that [tex]h= -\frac{1}{2} , k = - \frac{147}{4}, f = -\frac{110}{3}[/tex]
Substituting the above value in the equation of a parabola, we get
The standard form is [tex]y=3x^{2} +3x-36.[/tex]
Hence, the required equation is [tex]y=3x^{2} +3x-36.[/tex]
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15 divided by 5 plus 8 plus 2 times 8 using pemdas
Answer:
19
Step-by-step explanation:
P.E.M.D.A.S
2X8=16
15/5= 3
Answer:
27
Step-by-step explanation:
1) Write it out using operations
15 divide by 5 = 15 ÷ 515 ÷ 5 plus 8 = 15 ÷ 5 + 815 ÷ 5 + 8 plus 2 = 15 ÷ 5 + 8 + 215 ÷ 5 + 8 + 2 times 8 = 15 ÷ 5 + 8 + 2 × 82) Organise it into PEMDAS
P: There are no brackets
E: There are no exponents (powers)
M: We need to put 2 × 8 in brackets (to make sure we know what to do first
D: We need to put 15 ÷ 5 in brackets
A&S: As the numbers we need to add and subtract will be part of the brackets we can move on!
3) Solve!
First we need to do the brackets
2 × 8 = 1615 ÷ 5 = 3Then the rest
3 + 8 = 1111 + 16 = 27Hope this helps, have a great day!!
the sampling distributions used for both matched/related/paired samples and independent samples statistical tests have what value at the center of the distribution for hypothesis testing?
The sampling distributions are used for statistical tets.
What is sampling distributions?A sampling distribution, also known as a finite-sample distribution, in statistics is the probability distribution of a particular statistic based on a random sample. The sampling distribution is the probability distribution of the values that the statistic takes on if an arbitrarily large number of samples, each involving multiple observations (data points), were used separately to compute one value of a statistic (such as, for example, the sample mean or sample variance) for each sample. Although only one sample is frequently observed, the theoretical sampling distribution can be determined.The use of sampling distributions in statistics is crucial because they significantly simplify the process of drawing conclusions from statistical data. They specifically enable analytical considerations to be based on a statistic's probability distribution rather than the joint distribution of the data.Hence,The sampling distributions are used for statistical tets.
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help meeeeeeeeeeee pleaseee rnnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
From the given exponential function y = 7.1(1.03)ˣ, the amount produced in 2006 was approximately 7.8 billion pounds and the estimated amount in 2014 will be approximately 9.8 billion pounds
Exponential FunctionAn exponential function is a function of form f (x) = ax, where “x” is a variable and “a” is a constant which is called the base of the function and it should be greater than 0.
In the function given;
y = 7.1(1.03)ˣ
x = number of years after 2003a) What is the estimated number in 2006
x in 2006 = 3
x = 3
Insert the values into the formula above;
y = 7.1(1.03)³
y = 7.76 ≅ 7.8 billion pounds
b)
The cheese produced in 2014
x in 2014 = 11
Insert in the value and solve
y = 7.1(1.03)¹¹
y = 9.83 ≅ 9.8 billion pounds
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Lena rents a car for a day. Her car rental company charges $50 per day plus $0. 40 per mile. Peter rents a car from a different company that charges $70 per day plus $0. 30 per mile. How many miles do they have to drive before lena and peter pay the same price for the rental for the same number of miles?.
They have to drive 200 miles before Lena and Peter pay the same price for the rental .
In the question ,
it is given that ,
let x be the number of miles they drive together and pay the same amount.
the charge for Lena's car rental company is $50 per day and then $0.40 per miles which is represented by the equation
Cost = 50 + 0.40x
the charge for Peter's car rental company is $70 per day and then $0.30 per miles which is represented by the equation
Cost = 70 + 0.30x
Equating the cost for Lena and Peter car rental company
70 + 0.30x = 50 + 0.40x
0.40x - 0.30x = 70 - 50
0.10x = 20
x = 20/0.10
x = 200
Therefore , They have to drive 200 miles before Lena and Peter pay the same price for the rental .
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The regression equation y = 6050-725x can be used to predict the value of a china cabinet after x years. Identify the
various components of the equation?
Use the regression equation y = 6050-725x to predict the value of a china cabinet after x years. x is 5325.
What is meant by regression equation?Y = a + b The formula is Y + X + E, where Y is the dependent variable, X is the independent variable, an is the intercept, b is the slope, and E is the residual.Regression is a statistical tool that predicts the dependent variable using one or more independent variables. The term "regression" comes from the Latin word "regressus," which means "to return" (to something).Regression is, in this sense, the technique that allows you to "go back" from a jumbled, difficult-to-interpret dataset to a clearer, more meaningful model.For example,
[tex]$&Y-\bar{Y}=b_{y x}(X-\bar{X}) \\[/tex]
Y-11 = 0.929(X-4)
Simplifying, then we get
Y = 0.929 x - 3.716 + 11
= 0.929 x + 7.284
The regression equation of Y on X is
Y = 0.929 x + 7.284
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Answer:
i think this is your question from edge?
Step-by-step explanation:
What is the equation of the line in slope-intercept form?
Answer:
Step-by-step explanation:
Finn is filling up an ice cream cone with a diameter of 4 cm. If the height of the cone is 6
cm, how much ice cream will the cone itself hold?
The cone can hold 8π [tex]cm^{3}[/tex] of ice cream or volume of cone is 8π [tex]cm^{3}[/tex] .
According to the question,
We have the following information:
Finn is filling up an ice cream cone with a diameter of 4 cm. And the height of the cone is 6 cm.
Diameter is twice that of the radius.
Radius of the cone = 4/2
Radius of the cone = 2 cm
We know that following formula is used to find the volume of the cone:
π[tex]r^{2} h[/tex]/3
Putting the value of r and h in this formula:
π*2*2*6/3
8π [tex]cm^{3}[/tex]
Hence, the cone can hold 8π [tex]cm^{3}[/tex] of ice cream.
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Julia measured a line to be 16.1 inches long. if the actual length of the line is 17.1 inches, then what was the percent error of the measurement, to the nearest tenth of a percent?
The percent error of the measurement , to the nearest tenth of a percent is 5.9% .
In the question ,
it is given that
the actual length of the line = 17.1 inches
the length of the line measured by Julia = 16.1 inches
the percent error can be calculated using the formula
percent error = (actual length - measured length)/(actual length)
Substituting the actual and measured value in the formula ,
we get
percent error = (17.1 - 16.1)/17.1
= 1/17.1
= 5.84795
≈ 5.9%
Therefore ,The percent error of the measurement , to the nearest tenth of a percent is 5.9% .
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Solve the following equation: 45-3x=18
I tried x=9 but it said it was wrong
Answer: x = [tex]\frac{15}{7}[/tex]
Step-by-step explanation:
To solve, we will isolate the variable by using reverse operations. You commented the proper equation is 45 - 3x = 18x
Given:
45 - 3x = 18x
Add 3x to both sides of the equation:
45 = 21x
Divide both sides of the equation by 21:
x = [tex]\frac{15}{7}[/tex]
HELP I DONT UNDERSTAND
Graph f(x)=3x+4 and h(x)=f(x+3). pls
The graph of f(x) = 3x + 4 and h(x) = f(x + 3) are attached.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
A linear function is represented as:
y = mx + b
Where m is the slope (rate of change) and b is the initial value of y.
f(x) = 3x + 4
h(x) = f(x + 3) = 3(x + 3) + 4 = 3x + 9 + 4
h(x) = 3x + 13
The graph of f(x) = 3x + 4 have a slope of 3 and y intercept of 4, while the graph of h(x) = f(x + 3) have a slope of 3 and y intercept of 13.
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Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
What is the value of x?
21
xº
38°
21
Drawing not to scale
The measure, x, which is of one of the base angles of the isosceles triangle in the question is 71°
The value of x is 71°
What is an isosceles triangle?An isosceles triangle is a triangle that has congruent base angles
The description of the specified triangle mare as follows;
The length of the sides are;
21 and 21
Therefore;
The triangle is an isosceles triangle
The base angles of an isosceles triangle are congruent, therefore;
The measure of the angle adjacent the angle x is also m∠x
Which indicates;
38° + x° + x° = 180° (Angle sum property of a triangle)
38° + 2·x° = 180°
2·x° = 180° - 38° = 142°
x = 142° ÷ 2 = 71°
x = 71°
The measure of the angle x is 71°
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Estimate the difference.
17.98-2.596
Answer:
15.4
Step-by-step explanation:
Round: 17.98 to 18 and 2.596 to 2.6
Do the math: 18-2.6=15.4
Conclusion: We rounded the numbers (17.98 to 18 and 2.596 to 2.6). Then we did the subtraction and got our answer.
Therefore, your answer is 15.4.
Once Isabel rented the warehouse space, she decided to post ads on several social media sites to advertise her online bookstore. Let x represent the number of months the ads have been posted. Isabel finds that the function below describes the number of books sold as a function of the number of months her ads have been posted.
f(x) = 1000 + 1000
⦁ How many books were sold after 8 months
Graph the function.
Answer: 3000 thousand books were sold
Step-by-step explanation:
100 points + brainliest if its correct (; kinda bad at math
Explain the process to determine how many solutions the equation 16 - 2t = 5t + 2
has. Be specific.
Answer:
One solution which is x = 2
Step-by-step explanation:
Equations like these most often won't have more than one solution unless they are the exact same equation.
If the equation was x + 1 = x + 1, it would have infinitely many solutions because both sides are the same.
Equations with absolute value and quadratic equations most often have 2 solutions have there is a negative answer and a positive answer.
PLEASE HELP ASAP. are these functions?????
The figure shown in 2 and 4 are the functions. Options B and D are correct.
Given that,
A number of graphs have been shown, to determine which graph is a function,
Functions is the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.
here,
Graph 1,
Is not function because it is a scatter plot,
Graph 2
Is line, which is a function,
Graph 3
Is a circle with a curve that is not functional,
Graph 4
Is parabola and quadratic function,
Thus, the figure shown in 2 and 4 are the functions. Options B and D are correct.
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Find the distance between each pair of parallel lines with the given equations.
1) y = -2
y = 4
2) x = 3
x =7
3) y = 5x - 22
y = 5x + 4
Describe the transformation from f(x) to C(x). F(x) = IxI G(x) = |x - 31 + 5
The transformation from f(x) to g(x) is horizontal shift 3 units right and vertical shift 5 units up
The parent function function is
f(x) = |x|
The second function is
g(x) = |x - 3| + 5
The transformation of the function or the shape is the change of the coordinates of the shape. The shape and the size will be same only the coordinates will change
The parent function
f(x) = |x|
First there is a horizontal shift, that is 3 units right
Then there will be a vertical shift, that is 5 units up
There is no reflection about x axis or any vertical compression
Hence, the transformation from f(x) to g(x) is horizontal shift 3 units right and vertical shift 5 units up
The complete question is.
Describe the transformation from f(x) of g(x) where f(x) = |x| and g(x) = |x-3| + 5.
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