The volume of the solid shown can be found to be 105 cm ³ .
How to find the volume ?The volume of the solid can be found by the formula :
= Length x Width x Height
This is because this is a rectangular prism and their volumes require multiplying the sides of the rectangle in the above manner .
The volume of the solid is therefore:
= 35 x 1 x 3
= 35 x 3
= 105 cm ³
In conclusion, the volume of the solid would be 105 cm ³ .
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WHAT IF? The total cost of the vans for Location A is $228,500. The total cost for Location B is $153,000. What is the cost of
each type of van? Location A buys 7 large and 2 small vans, location B buys 2 large and 3 small vans
The cost of each large van is 22,323.53 and each small van is 36,117.65.
What are Linear Equations?Linear equations are equation involving one or more expressions including variables and constants and the variables are having no exponents or the exponent of the variable is 1.
Let x be the cost of a large van and y be the cost of a small van.
The total cost of the vans for Location A is $228,500.
Location A buys 7 large and 2 small vans.
So we have a linear equation,
7x + 2y = 228,500
The total cost for Location B is $153,000.
Location B buys 2 large and 3 small vans.
So we have a linear equation,
2x + 3y = 153,000
Multiplying the first equation with 3 and the second equation with 2,
21x + 6y = 685,500
4x + 6y = 306,000
Subtracting,
17x = 379,500
x = 22,323.53
Substituting in one of the equation,
y = 36,117.65
Hence the cost of each large and small van are 22,323.53 and 36,117.65 respectively.
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What is "a" in the equation
a/2.1 = 4.34
Answer:
a = 9.114
Step-by-step explanation:
[tex]\frac{a}{2.1}[/tex] = 4.34 ( multiply both sides by 2.1 to clear the fraction
a = 2.1 × 4.34 = 9.114
Camden went to the grocery store and purchased cans of soup and frozen
dinners. Each can of soup has 150 mg of sodium and each frozen dinner has
300 mg of sodium. Camden purchased a total of 7 cans of soup and frozen
dinners which collectively contain 1500 mg of sodium. Graphically solve a
system of equations in order to determine the number of cans of soup
purchased, x, and the number of frozen dinners purchased, y.
Answer:
First off that is my name.
y=-0.5x+5 is the first equation. I don't know the second.
Sorry
Step-by-step explanation:
A
65%
B
Reflex Angle B =
degrees.
The measure of angle B is given as follows:
<B = 295º.
How to obtain the measure of angle B?Angles A and B in the context of this problem are reflex angles, meaning that the sum of their measures is of 360º.
The measures are given as follows:
<A = 65º.<B is unknown.Hence the measure of angle B is obtained as follows:
65 + <B = 360
<B = 360 - 65
<B = 295º.
Missing InformationThe diagram modeling the situation is given by the image presented at the end of the answer.
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Ayaan deposited $746 into a tax-free savings account. He earns 2.15% interest. How much money will he have in his account after 6 months?
The amount that Ayaan will have in his tax-free savings account after 6 months of depositing $746 at 2.15% interest is $754.02.
What is the future value?The future value refers to the present value plus the interest.
The future value for this savings account can be computed using the simple interest system since there is no compounding of interest.
The initial deposit (present value) = $746
Interest rate = 2.15%
Savings period = 6 months
Future value = $754.02 ($746 + ($746 x 2.15% x 6/12)
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The question is in the picture.
Answer:
x = 9 , y = 5
Step-by-step explanation:
Consider the figure to be a parallelogram.
• the diagonals bisect each other
then
2x - 4 = x + 5 ( subtract x from both sides )
x - 4 = 5 ( add 4 to both sides )
x = 9
and
9y - 13 = 5y + 7 ( subtract 5y from both sides )
4y - 13 = 7 ( add 13 to both sides )
4y = 20 ( divide both sides by 4 )
y = 5
What is time complexity cheat sheet ?
A time complexity cheat sheet is a reference guide that provides an overview of the time complexity of common algorithms and operations in computer science.
Time complexity is a measure of the amount of time an algorithm takes to solve a problem, expressed in terms of the input size of the problem. It is typically denoted using Big O notation, which provides an upper bound on the amount of time an algorithm takes.
A time complexity cheat sheet can be useful for quickly determining the time complexity of an algorithm or operation, as well as for comparing the time complexity of different algorithms. Some common time complexities that may be included in a time complexity cheat sheet are:
O(1): Constant time complexity. An algorithm with O(1) time complexity takes a fixed amount of time, regardless of the input size.
O(log n): Logarithmic time complexity. An algorithm with O(log n) time complexity takes time proportional to the logarithm of the input size.
O(n): Linear time complexity. An algorithm with O(n) time complexity takes time proportional to the input size.
O(n log n): Log-linear time complexity. An algorithm with O(n log n) time complexity takes time proportional to the input size multiplied by the logarithm of the input size.
O(n^2): Quadratic time complexity. An algorithm with O(n^2) time complexity takes time proportional to the square of the input size.
O(2^n): Exponential time complexity. An algorithm with O(2^n) time complexity takes time proportional to two raised to the power of the input size.
Other time complexities may also be included, depending on the complexity of the algorithm or operation. A time complexity cheat sheet can be a helpful tool for understanding and analyzing algorithms, but it is important to remember that time complexity is not the only factor to consider when evaluating the performance of an algorithm.
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A marketing assistant for a technology firm plans to randomly select 1000 customers to estimate the proportion who are satisfied with the firm's performance. Based on the results of the survey, the assistant will construct a 95% confidence interval for the proportion of all customers who are satisfied. The marketing manager, however, says that the firm can afford to survey only 250 customers. How will this decrease in sample size affect the margin of error and confidence interval? True Statements False Statements The margin of error will be about 2 times larger. The margin of error will be about 4 times larger The margin of error will be about the same size. The margin of error will be about half as farge. The margin of error will be about one-fourth as large. The confidence interval will be wider. The confidence interval will be narrower.
a rectangular lot is 165 feet long and 90 feet wide how many feet of fencing are needed to make a diagonal fence for the lot? round to the nearest foot
Answer:
Step-by-step explanation:
To find the diagonal of a rectangular lot, you can use the Pythagorean theorem. The theorem states that in a right triangle, the square of the length of the hypotenuse (the longest side, also known as the diagonal of the rectangle) is equal to the sum of the squares of the lengths of the other two sides.
So, for a rectangular lot 165 feet long and 90 feet wide, the length of the diagonal can be calculated as follows:
d = √(165^2 + 90^2) = √(27225 + 8100) = √35325 = 189 feet
The diagonal fence for the lot would require 189 feet of fencing. To round this to the nearest foot, we would round up to 190 feet, since 189.5 is closer to 190 than 189.
Therefore, 190 feet of fencing are needed to make a diagonal fence for the lot.
Solve for x in the following circle: D X 140⁰E 160
10 degrees is the measure of angle x from the circle
Theorems in circle geometryIn order to determine the value of x from the given circle, we will use the theorem ' angle at the centre of the circle is twice the angle at the circumference.
Mathematically;
360 - 140 = 2arcED
220 = 2arcED
arcED = 220/2
arcED = 110 degrees
Hence the measure of angle x from the given figure is 110 degrees
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A company sells orange juice in spherical containers that look like oranges. Each container has a surface area of approximately 50.3 sq.in. What is the volume of the container?
We can determine the radius of the container using the formula for a sphere's surface area because it resembles an orange and has a surface area of roughly 50.3 square inches:
A sphere's surface area equals [tex]4 r^2[/tex].
where r denotes the sphere's radius.
50.3 sq. = 4πr²
By multiplying both sides by 4, we obtain:
r² = 50.3 sq. / (4π)
r² ≈ 4
When we square the two sides, we obtain:
r ≈ 2
Hence, the spherical container has a radius of around 2 inches.
The volume of the container can now be calculated using the following formula:
A sphere's volume equals [tex](4/3)r^3[/tex].
Container volume = (4/3) X(23)
The container's volume is 33.5 cubic inches.
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A university has 36,180 students. In a random sample of 210 students, 14 speak three or more languages. Predict the number of students at the university who speak three or more languages.
The expected number of students at the university who speak three or more languages is __________.
Answer:
2,412
Step-by-step explanation:
[tex]\displaystyle E(X)=np=(36180)\biggr(\frac{14}{210}\biggr)=2412[/tex]
Therefore, we can expect 2,412 students at the university to speak 3 or more languages.
3. Xavier has $43 in his savings account and plans to save $15 each week. Write an algebraic expression to represent how much Xavier will have in his savings account after w weeks.
An algebraic expression representing the amount Xavier will have in his savings account after w weeks is 43 + 15w.
What is algebraic expression?Algebraic expressions consist of numbers, variables, and the mathematical operations, especially addition, subtraction, division, and multiplication.
An algebraic expression does not have the equation symbol (=) unlike an equation because it is not a complete mathematical statement.
The amount Xavier already has in his savings account = $43
The planned weekly savings = $15
The period of savings = w
Algebraic Expression:43 + 15w
Thus, using an algebraic expression, after w weeks, Xavier will have 43 + 15w in his savings account.
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You are making a round flower garden in your yard. The circumference of the garden will be 60 inches. What is the diameter? Use 3.14 to approximate pi. Round to the nearest tenth.
The diameter of the circular garden round to the nearest tenth will be 19.1 inches.
What is the diameter of a circle?In a circle, an infinite number of diameters can be drawn. A diameter is a straight line passing through the center and joins two points of the circumference of a circle. The length of a diameter is twice the length of the radius.
The circumference of a circle is given by C = πd, where d is the diameter of the circle and π can be taken as 3.14.
Substitute C = 60 and π = 3.14 into the above formula and find d.
60 = 3.14×d
d = 60/3.14
≈ 19.108
≈ 19.1
Therefore, the obtained answer is 19.1 inches.
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A college cafeteria is looking for a new dessert to offer its 4,000 students. The table shows the preference of 225 students.
Ice Cream Candy Cake Pie Cookies
9
72
36
27
81
Which statement is the best prediction about the number of cookies the college will need?
The college will have about 480 students who prefer cookies.
O The college will have about 640 students who prefer cookies.
O The college will have about 1,280 students who prefer cookies.
O The college will have about 1,440 students who prefer cookies.
Using inferential statistics, it is found that the option that is best surveyed from the collected in the survey is given by:
D. The Number of students who prefer cookies and cream is higher than the number of those who prefer chocolate and those who prefer strawberry.
What is an inferential statistic?An inferential statistic is one that makes inference or predictions about a population based on a sample.
From the table, we have that cookies and cream is the most popular flavor, hence the correct option is:
D. The Number of students who prefer cookies and cream is higher than the number of those who prefer chocolate and those who prefer strawberry.
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For a project in her Geometry class, Ai Mi uses a mirror on the ground to measure the height of her school building. She walks a distance of 7.95 meters from the building, then places a mirror flat on the ground, marked with an X at the center. She then walks 2.3 more meters past the mirror, so that when she turns around and looks down at the mirror, she can see the top of the school clearly marked in the X. Her partner measures the distance from her eyes to the ground to be 1.15 meters. How tall is the school? Round your answer to the nearest hundredth of a meter.
The height of the school is approximately 5.96 meters.
What is geometry?Geometry is one of the oldest branches of mathematics, along with arithmetic. It is concerned with spatial properties such as figure distance, shape, size, and relative position.
The mirror and the triangles formed by the mirror, the top of the school, and the ground are similar. This means that the corresponding sides of the triangles are proportional.
Let x be the distance from the mirror to the top of the school. Then:
[tex]\dfrac{x} {7.95} = \dfrac{(x + h) }{ 2.3}[/tex]
We can simplify this equation by cross-multiplying and solving for x:
2.3x = 7.95(x + h)
2.3x = 7.95x + 7.95h
5.65x = 7.95h
[tex]x = \dfrac{7.95h} { 5.65}[/tex]
Now we can use the measurement of the distance from Ai Mi's eyes to the ground to find h. Let d be the distance from the mirror to Ai Mi's eyes. Then:
d = 1.15 meters
The triangles formed by Ai Mi's eye, the mirror, and the ground are similar, so:
[tex]\dfrac{h} { d} =\dfrac{ x} { (d + 2.3)}[/tex]
We can substitute the value of x from earlier:
[tex]\dfrac{h} { 1.15} = \dfrac{(\dfrac{7.95h} { 5.65)}} { 3.45}[/tex]
Simplifying:
[tex]h = \dfrac{(1.15 \times 7.95\times 3.45)}{ 5.65}[/tex]
h = 5.96 meters
Therefore, the height of the school is approximately 5.96 meters. Rounded to the nearest hundredth of a meter, the answer is 5.96 meters.
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(6e-3-4)x2. Please help me solve this
Answer:
-7.988 or -2E
Step-by-step explanation:
what the metric system of measurement is based on the number?
The metric system of measurement is based on the number 10.
This system is also known as the International System of Units (SI) and is used in most countries around the world. In the metric system, various units of measurement are defined as multiples or fractions of a base unit, which is defined for each quantity being measured. For example, the base unit for length is the meter, and the base unit for mass is the kilogram. Prefixes such as kilo-, centi-, and milli- are used to indicate multiples or fractions of the base unit, based on factors of 10. For example, a kilometer is 1000 meters, a centimeter is 1/100 of a meter, and a milligram is 1/1000 of a gram. This makes the metric system easy to use and convert between units, as well as consistent and universally recognized.
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The Gallup Poll interviews 1600 people. Of these, 18% say that they jog regularly. The news report adds: "The poll has a margin of error of plus or minus three percentage points at a 95% confidence level." You can safely conclude that
A. 95% of all Gallup Poll samples like this one give answers within ±3% of the true population value.
B. the percent of the population who jog is certainly between 15% and 21%.
C. 95% of the population jog between 15% and 21% of the time.
D. we can be 95% confident that the sample proportion is captured by the confidence interval.
E. if Gallup took many samples, 95% of them would find that 18% of the people in the sample jog.
The correct answer is option D. We can be 95% confident that the sample proportion is captured by the confidence interval.
The margin of error of plus or minus three percentage points at a 95% confidence level means that the true proportion of people who jog regularly in the population is estimated to be between 15% and 21%. We can be 95% confident that the true proportion of people who jog regularly falls within this interval.
Therefore, option B is correct. Option A is incorrect because it implies that the margin of error always holds true for any sample size, which is not the case. Option C is incorrect because it presents a range of values for the population, not for the estimate. Option E is incorrect because it refers to the proportion of samples that would find the same sample proportion, not the range of values within which the true proportion lies.
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the shorter leg of a 30-60-90 triangle is 3.4 inches long find the perimeter
Answer: 23.56 in
Step-by-step explanation:
The perimeter of the 30-60-90 triangle with a shorter leg of 3.4 inches is 16.08 inches.
What is Triangle?A triangle is a three-sided polygon that consists of three edges and three vertices.
In a 30-60-90 triangle, the lengths of the sides are in the ratio of 1:√3:2, where the shortest side is opposite the 30-degree angle,
the medium side is opposite the 60-degree angle, and
the longest side is opposite the 90-degree angle.
So if the shorter leg of the triangle is 3.4 inches long, the other two sides can be found as follows:
Medium side =√3× shorter leg
= 1.732 × 3.4
= 5.88 inches
Longest side = (2 × shorter leg)
= (2 × 3.4)
= 6.8 inches
The perimeter of the triangle is simply the sum of the lengths of all three sides:
Perimeter = Shorter leg + Medium side + Longest side
= 3.4 + 5.88 + 6.8
= 16.08 inches
Therefore, the perimeter of the 30-60-90 triangle with a shorter leg of 3.4 inches is 16.08 inches.
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how many cubic feet to liters?
One cubic foot is equal to approximately 28.3168 liters. So to convert cubic feet to liters, you can multiply the number of cubic feet by 28.3168.
Unit conversion is the process of converting a value expressed in one unit of measurement to an equivalent value expressed in another unit of measurement. For instance, to convert 10 feet to meters, you would use the conversion factor 1 foot = 0.3048 meters.
For example, if you have a volume of 5 cubic feet, you can convert it to liters as follows:
5 cubic feet * 28.3168 liters/cubic foot = 141.584 liters
Therefore, 5 cubic feet is equivalent to 141.584 liters (approximately).
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elevation of 30 feeet below sea level
The elevation of the diver after the dive can be found to be 42 feet below sea level or - 42 feet.
How to find the elevation ?If the diver's elevation is -30 feet relative to sea level, and she dives down 12 feet, we can find her new elevation by adding the change in depth to her initial elevation:
New elevation = Initial elevation + Change in depth
New elevation = - 30 feet + ( - 12 feet )
New elevation = - 42 feet
Therefore, the diver's new elevation after the dive is -42 feet relative to sea level.
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The full question is :
A divers elevation is -30 feet below sea level. She dives down 12 feet. What is her elevation after the dive?
this is my question
The correct answer is B. 2
Use the distributive property to write two different expressions equal to 72
Each expression should be the product of a number and a sum. Show you
Using Distributive Property, the two expressions that is equal to 72 are
3(10+14) and 4(5+13).
What are expressions exactly?
In mathematics, expressions are mathematical claims that consist of at least two sentences that contain numbers, variables, or both, and are linked by an operator in between. The operations includes sum, Difference, multiplication, and division. For instance, x + y is an equation in which the words x and y are separated by an addition operator. In mathematics, there are two types of expressions: numerical expressions, which include only numbers, and algebraic expressions, which contain both numbers and variables.
Now,
The expressions using distributive property can be
3(10+14)=3*10+3*14
=30+42
=72
4(5+13)=4*5+4*13
=20+52
=72
Hence,
the two expressions that is equal to 72 are 3(10+14) and 4(5+13).
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In the diagram, segment AD bisects angle BAC.
Given the following segment lengths, find the value of x.
Round to the nearest tenth.
AB: 19
AC: 17
Show all your work
The length of side x is 10 units
How to determine the length of side xFrom the question, we have the following parameters that can be used in our computation:
Segment AD bisects angle BAC.
Using the above as a guide, we have the following:
BD = DC
substitute the known values in the above equation, so, we have the following representation
x = 20 - x
Evaluate the like terms
2x = 20
Divide by 2
x = 10
Hence, the value of x is 10
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please help me!!:)
MULTIPLE CHOICE QUESTION
A car was purchased in 2010 for $20,000.
The car is depreciating by 15% each year.
What is the "a" value?
Answer:
20,000
Step-by-step explanation:
I'm assuming your class is using this model of the exponential decay function:
f(x) = a(1 - r)^x
In this case, the equation would be:
f(x) = 20,000(1 - .15)^x
or, when 1 - r is calculated:
f(x) = 20,000(.85)^x
The "a" value is basically the starting value, because on a graph, the starting value would be where x = 0. Anything to the 0th power is 1, and anything multiplied by 1 is the same thing, making "a" the same as the starting value, or the y-intercept.
Therefore, a = 20,000.
Hope this helps!
Zach scores a ringer 40% of the time
What percent of 96 is 73
Answer: 70.08
Step-by-step explanation:
0.96*73=
Identify the x-intercept and y-intercept of the line 3x - 6y= - 12.
Answer: x intercept: -4, y intercept: 2 (look at the image for the solution)
Step-by-step explanation:
Answer:
x intercept: -4, y intercept: 2
Step-by-step explanation:
If point (x, y) is rotated 90 degrees about the origin, the resulting point is (-y, -x).
The statement "If point (x, y) is rotated 90 degrees about the origin, the resulting point is (-y, -x)." is incorrect.
The origin of the coordinate plane is the point (0, 0), and it is the center of rotation for many geometric transformations.
When a point (x, y) is rotated 90 degrees about the origin, the resulting point is (-y, x). This is because rotation by 90 degrees counterclockwise causes the x-coordinate to become the negative of the original y-coordinate and the y-coordinate to become the original x-coordinate.
To see this, imagine the point (x, y) on the coordinate plane and draw a line segment connecting the point to the origin. The length of this line segment is given by the Pythagorean theorem as the square root of x² + y². After rotating the point 90 degrees about the origin, the line segment will be perpendicular to the original line segment and have a length equal to y and -x.
In summary, rotating a point (x, y) at 90 degrees about the origin results in the point (-y, x) due to the change in the direction and length of the line segment connecting the point to the origin.
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