If x=2 and = 4, what is the value of
4)(12 + 8)?
Answer:
20
Step-by-step explanation:
The diameter of a circle is 4 m. Find its area to the nearest tenth.
Answer:
12.6m²
Step-by-step explanation:
radius=2
Area=π2²=12.6(1dp)
a-2=7 solve this question please
Answer:
A=9
Step-by-step explanation:
So basically, just think of "what" minus two equals seven. That'd be nine.
You can also look at it like 7 + 2= A
A=9
fill in the missing term in the equation.
(1+2i)(2+i)+ (_)= 5(2+i)
Answer: 10
Step-by-step explanation: I got this correct on Edmentum.
Give the x and y-intercept of the following equation
4.1 f(x)=3x+6
which quadrant is the ordered pair (-5.5,3) in?
PLEASE HELP!!!! I WILL GET IN TROUBLE!!!!!!!!!!
Answer
Step-by-step explanation:
quad 1=+,+
quad 2= -+
quad 3= -,-
quad 4= +,-
Why can a stone arch be twice as wide as a stone lintel (two columns supporting a horizontal stone) if both are built of the same material
A stone arch can be twice as wide as a stone lintel because an arch distributes the weight of the structure vertically down its curve to the columns (piers) on either side while a lintel distributes the weight horizontally along the length of the stone.
A stone arch can be twice as wide as a stone lintel because an arch distributes the weight of the structure vertically down its curve to the columns (piers) on either side while a lintel distributes the weight horizontally along the length of the stone.
It requires only a small fraction of the arch's width to support itself while a lintel requires the full width of the structure that it spans. Thus, a stone arch can span a larger gap than a stone lintel and be twice as wide while using the same material.
For example, the Roman Colosseum uses an arch to span the entrances and exits while the walls supporting the upper levels use a series of stone lintels to support the structure.
Moreover, the arc prevents the need for a central support structure, which would be in the way of any events taking place in the structure. The technology of arches made them fundamental to ancient Roman architecture. For example, the arches were used to construct aqueducts, which provided a steady supply of water to the city of Rome.
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At the Natural History Museum, tickets cost $15.50 for adults and $6.50 for kids
under 12. What would be the total cost for 10 adult tickets and 24 kids tickets? What
would be the total cost for a adult tickets and k kids tickets?
Total cost, 10 adult tickets and 24 kids tickets:
Total cost, a adult tickets and k kids tickets:
Answer:
$311
Step-by-step explanation:
6.50x24=156
15.50x10=155
155+156=311
What is the distance between the points (2, 1) and (14, 6) on a coordinate
plane?
Answer:
√169 OR 13
Step-by-step explanation:
D= √(14-2)^2+(6-1)^2
D= √12^2=5^2
D= √144+25
D= √169 AKA 13
how much is 1 cc to oz
To convert 1 cubic centimeter (cc) to ounces (oz), apply conversion factor between the two units. The conversion factor is:
1 cc = 0.033814 oz
This means that one cubic centimeter is equivalent to 0.033814 ounces.
Therefore, the mathematical expression to convert 1 cc to oz is:
1 cc * (0.033814 oz/cc) = 0.033814 oz
So, 1 cc is equal to 0.033814 ounces.
A conversion factor is a mathematical expression that expresses the relationship between two units of measurement. It is used to convert measurements between units.
Conversion factors are commonly used to convert measurements between different units of measurement in math, science, and engineering. They are a useful tool for performing calculations and comparing data in various units.
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Find the slope on the graph?
Answer: I believe it’s 1/2
Step-by-step explanation: it cannot be a negative answer because The point on the graph is on the positive side
Answer: 2
Step-by-step explanation:
The slope of a graph is rise over run.
Find a perfect point on the graph and go to the next perfect point.
An example is:
(-2, 0) and (-1, 2)
To get from the first point to the second, you go up 2 over 1.
It’s rise (up) over run (left or right) so it’s 2/1.
2 divided by 1 is just 2.
Your slope is 2.
Hope this helps!
a) Work out the value of (√√5)²x (√√3)²?
b) Work out the value of (9)** (√√30)?
Answer:
15 and 270
Step-by-step explanation:
using the property of radicals
(\(\sqrt{x}\) )² = x and (\(\sqrt[3]{x}\) )³ = x
then
(\(\sqrt{5}\) )² × (\(\sqrt{3}\) )² = 5 × 3 = 15
(\(\sqrt[3]{9}\) )³ × (\(\sqrt{30}\) )² = 9 × 30 = 270
which word describes a statement that has been accepted, tested, and supported by multiple sets of evidence? theory theory hypothesis hypothesis procedure procedure data
Data defines a claim that has been verified, examined, and backed up by numerous pieces of evidence.
What do you mean by data?
Data is information that has been transformed into a format that is useful for transfer or processing in computing. Information that has been converted into binary digital form for usage with contemporary computers and communication channels is referred to as data.
As the volume of data being collected and stored increases, so do the units used to measure it. For instance, the relatively new concept of a "brontobyte" refers to a unit of data storage that is 10 to the 27th power of bytes.
File formats can be used to store data, such as ISAM and VSAM in mainframe systems. Another file format for storing, converting, and processing data is comma-separated values.
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36 + 1.80 + 2.16 I'm stuck
Answer:
39.96 should be the right answer
Answer: 39.96
Step-by-step explanation:
36+1.80=37.80
Then you add 2.16
37.80+2.16=39.96
Is real the maximum value of 3x² 9x 17 3x² 9x 7?
Therefore, the answer of the given question of the equation maximum value is 41 .
What is equation?
The equal sign is used between numerical or changeable expressions to create an equation, such as 3x+5=11.
A number that can be entered as the variable's replacement in an equation serves as the solution.
According to the given question:
Correct option is D)
f(x)= 3+9x+17 / 3+9x+7
=> 3+9x+7+10 / 3+9x+7
=> 1 + 10 / 3+9x+7
f(x) = 0 for maximum value
f(x)= 10 (6x+9) / (3x2+9x+7)2
6x+9=0
X=-3/2
Given that x is real, the highest value of f(x) is => 1 +
=> 1 +
=> 1 + 40/1 = 41
Therefore, the answer of the given question of the equation is 41 .
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Please help
1: A rectangle has a length of 4.3 cm and a perimeter of 14.8 cm. Find the width of the rectangle.
Cm
2: Lanie has 33 total games downloaded on her phone and her laptop. Her laptop has 7 less than 3 times the number of games that are on her phone. How many games does Lanie have on her phone?
Enter your answer in the box.
games
1. The width of the rectangle is 3.1cm
2. The number of games in Lanie's phone is 10
How to determine the valueThe formula for calculating the perimeter of a rectangle is expressed as;
Perimeter = 2(l + w)
Where;
L is the length of the rectanglew is the width of the rectangleGiven the values as length = 4.3cm and perimeter = 14. 8cm
Substitute the values into the formula
14. 8 = 2(4.3) + 2w
expand the bracket
14. 8 = 8. 6 + 2w
collect like terms
2w = 14. 8 - 8.6
2w = 6. 2
Divide through by the coefficient of w
w = 6.2/2
w = 3.1 cm
Let the number of games in Lanie's phone be x
x + 3x - 7 = 33
collect like terms
4x = 33 + 7
4x = 40
Divide both sides by 4
x = 40/4
x = 10 games
Hence, the width is 3.1cm
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I NEED HELP!!
This is a another question, I'll give you 50 points and a brainlist if you figure this out, all you have to do is to Solve the following multi-step equation, and write it out and describe it on a piece of paper or on your computer don't send me links, send me screenshots of your work show me how you did it.
Answer:
x=x
Step-by-step explanation:
4x-6+2x=3(2x-2)
4x+2x-6=6x-6
4x+2x=6x
6x=6x
x=x
Answer:
infinity solutionsthe picture is attached2. Solve the following difference equations: (a) \( x_{t+1}=\frac{1}{2} x_{t}+3 \) (b) \( x_{t+1}=-3 x_{t}+4 \)
(a) ( x_{t+1}=\frac{1}{2} x_{t}+3 ), the solution to this difference equation is x_t = 2^t + 3, The difference equations in this problem are both linear difference equations with constant coefficients.
This can be found by solving the equation recursively. For example, the first few terms of the solution are
t | x_t
--- | ---
0 | 3
1 | 7
2 | 15
3 | 31
The general term of the solution can be found by noting that
x_{t+1} = \frac{1}{2} x_t + 3 = \frac{1}{2} (2^t + 3) + 3 = 2^t + 3
(b) ( x_{t+1}=-3 x_{t}+4 )
The solution to this difference equation is
x_t = 4 \cdot \left( \frac{1}{3} \right)^t + 4
This can be found by solving the equation recursively. For example, the first few terms of the solution are
t | x_t
--- | ---
0 | 4
1 | 5
2 | 2
3 | 1
The general term of the solution can be found by noting that
x_{t+1} = -3 x_t + 4 = -3 \left( 4 \cdot \left( \frac{1}{3} \right)^t + 4 \right) + 4 = 4 \cdot \left( \frac{1}{3} \right)^t + 4
The difference equations in this problem are both linear difference equations with constant coefficients. This means that they can be solved using a technique called back substitution.
Back substitution involves solving the equation recursively, starting with the last term and working backwards to the first term.
In the first problem, the equation can be solved recursively as follows:
x_{t+1} = \frac{1}{2} x_t + 3
x_t = \frac{1}{2} x_{t-1} + 3
x_{t-1} = \frac{1}{2} x_{t-2} + 3
...
x_0 = \frac{1}{2} x_{-1} + 3
The general term of the solution can be found by noting that
x_{t+1} = \frac{1}{2} x_t + 3 = \frac{1}{2} (2^t + 3) + 3 = 2^t + 3
The second problem can be solved recursively as follows:
x_{t+1} = -3 x_t + 4
x_t = -3 x_{t-1} + 4
x_{t-1} = -3 x_{t-2} + 4
...
x_0 = -3 x_{-1} + 4
The general term of the solution can be found by noting that
x_{t+1} = -3 x_t + 4 = -3 \left( 4 \cdot \left( \frac{1}{3} \right)^t + 4 \right) + 4 = 4 \cdot \left( \frac{1}{3} \right)^t + 4
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The equation represented by the table
Answer:
A. y= -3x - 1
that's the answer of you substitute the figures in x into where x can be located in A
Ann Pablo and Dan have a total of $78 in their wallet ann has 10 more than Dan Pablo has two Times what Dan has how much do they have
Answer:
Amount Dan has = $17
Amount Ann has = $27
Amount Pablo has = $34
Step-by-step explanation:
Total amount they have = $78
Let
Amount Dan has = x
Amount Ann has = x + 10
Amount Pablo has = 2x
Total = Dan + Ann + Pablo
78 = x + (x + 10) + 2x
78 = x + x + 10 + 2x
78 = 4x + 10
78 - 10 = 4x
68 = 4x
x = 68/4
x = 17
Amount Dan has = x = $17
Amount Ann has = x + 10
= 17 + 10
= $27
Amount Pablo has = 2x
= 2(17)
= $34
Use the equation below to find the axis of symmetry in the given problem
Is this congruent and how is this congruent
Two congruent squares and a parallelogram were used to form the figure shown. 3 meters, 6 meters, 2.8 meters, 3 meters What is the area of the figure in square meters?
The area of a figure is the amount of space the figure occupies
The surface area of the figure is 34.8 square meters
How to determine the area of the shapeFrom the question, we have:
The dimensions of the congruent squares are 3 m by 3 mThe dimensions of the parallelogram are height of 2.8 m, and base of 6 mSo, the area of the figure is:
Area = 2 * Area of square + Area of parallelogram
This gives
\(Area = 2 * (3m * 3m) + 2.8m * 6m\)
Evaluate the products
\(Area = 18m^2 + 16.8m^2\)
Evaluate the sum
\(Area = 34.8m^2\)
Hence, the surface area of the figure is 34.8 square meters
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Answer:
34.8m2
Step-by-step explanation:
if you traveled in space at a speed of 1000 miles per house, how far would you travel in 7.5*10^5 houes
Traveling at a speed of 1000 miles per hour for 7.5 * 10⁵ hours would result in traveling a distance of 7.5 * 10⁸ miles.
To calculate the distance traveled, we can multiply the speed by the time traveled.
Speed = 1000 miles per hour
Time = 7.5 * 10⁵ hours
Distance = Speed * Time
Distance = 1000 miles/hour * 7.5 * 10⁵ hours
To perform this calculation, we can multiply the numerical values and keep the scientific notation for the result:
Distance = 1000 * 7.5 * 10⁵ miles
Distance = 7.5 * 10⁸ miles
Therefore, traveling at a speed of 1000 miles per hour for 7.5 * 10⁵ hours would result in traveling a distance of 7.5 * 10⁸ miles.
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How do you prove the SAS similarity theorem?
The SAS Similarity Theorem asserts that two triangles are similar if two sides in one triangle are proportionate to two sides in another triangle and the included angle in both is congruent.
what is side-angle-side similarity theorem?
The side-angle-side (SAS) theorem is one such example. Triangles are congruent if their two sides and included angles are equivalent to those of another triangle's two sides and included angle. SAS similarity analysis: When the ratio of two sides' lengths in one triangle equals the ratio of sides' lengths in another triangle, and the included angles are also equal, the two triangles are said to be comparable.
and also by heron's formula
here s = half the perimeter,
a+b+c /2
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the function h ( x ) = 1 x 6 can be expressed in the form f ( g ( x ) ) , where g ( x ) = ( x 6 ) , and f ( x ) is defined as: f ( x ) = incorrect
The function h(x) = 1/x^6 can be written as f(g(x)), where g(x) = (x^6) and f(x) = 1/x.
What is a function?
A function is a relationship or expression involving one or more variables. It has a set of inputs and outputs. Each input has only one output. The function is the description of how the inputs relate to the output.
This means that we are representing h(x) as the composition of two functions, g(x) and f(x), such that the output of g(x) is plugged into f(x) to give us h(x).
In this case, g(x) = (x^6) takes in x and returns x^6, while f(x) = 1/x takes in x^6 and returns 1/(x^6).
When we plug the output of g(x) into f(x), we get h(x) = 1/(x^6).
So, in essence, we have expressed h(x) = 1/x^6 as f(g(x)), where g(x) = (x^6) and f(x) = 1/x.
Hence, The function h(x) = 1/x^6 can be written as f(g(x)), where g(x) = (x^6) and f(x) = 1/x.
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A power company calculates a person's monthly bill from the number of
kilowatt-hours (kWh), x, used.
The function b(x) = {
0.15x, x < or equal 200
0.10 (x - 200) + 30, x > 200
determines
the bill.
How much is the bill for a person who uses 300 kWh in a month?
A. $45
B. $40
Ο Ο Ο Ο
C. $60
D. $55
please help
Answer:
B. 40
Step-by-step explanation:
if x=300, it means x>200, then b(x)=0.1(x-200)+30; ⇔ b(x)=0.1*100+30= 40 [USD].
The bill for a person who uses 300 kWh in a month is $40.
Option B is the correct answer.
What is a function?A function has an input and an output.
A function can be one-to-one or onto one.
It simply indicated the relationships between the input and the output.
Example:
f(x) = 2x + 1
f(1) = 2 + 1 = 3
f(2) = 2 x 2 + 1 = 4 + 1 = 5
The outputs of the functions are 3 and 5
The inputs of the function are 1 and 2.
We have,
For a person who uses 300 kWh in a month, we need to use the second part of the function:
b(x) = 0.10(x - 200) + 30, x > 200
Substituting x = 300, we get:
b(300) = 0.10(300 - 200) + 30
b(300) = 0.10(100) + 30
b(300) = 10 + 30
b(300) = 40
Therefore,
The bill for a person who uses 300 kWh in a month is $40.
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78 is 65% of what number (can someone explain how to solve this?)
Answer:
120
Step-by-step explanation:
78 is 65% of what number.
Let's break down this expression.
In this case "is" means "equals" so we will use the equal sign (=)
65% can be written as 0.65 or 65/100
"of" indicates multiplication
"what number" will be represented by x.
Now, put this all together.
78 = 0.65 • x
To solve for x, divide both sides by 0.65
120 = x
This is your answer.
Check this by finding 65% of 120.
0.65 • 120 = 78
Your answer is correct.
Hope this helps!
Find The Volume look At image
The volume of the figure is 71487 ft³.
We have,
The figure has two shapes.
The volume of a cone is 1/3 x πr²h
The volume of a semisphere is 1/2 x 4/3 x πr³
Now,
Cone:
Radius = 39 ft
Height = 42 ft
Volume.
= 1/3 x π x 39² x 42
= 31941 π ft³
Semisphere:
Radius = 39 ft
Volume.
= 1/2 x 4/3 x π x 39³
= 39546 π ft³
Now,
The volume of the figure.
= 31941 + 39546
= 71487 ft³
Thus,
The volume of the figure is 71487 ft³.
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Evaluate 3(a + b + c)2 for a = 2, b = 3, and c = 4.
Answer:
Step-by-step explanation:
3(2 + 3 + 4)^2
3(9)^2 = 3(81) = 243