All of the options which are true of similar shapes include the following:
A. They must be the same shape.
D. They can be different sizes.
What are the properties of similar geometric shapes?In Mathematics, two (2) geometric shapes are said to be similar when the ratio of their corresponding side lengths are equal and their corresponding angles are congruent.
What is scale factor?In Geometry, the scale factor of a geometric figure can be calculated by dividing the dimension of the image (new figure) by the dimension of the pre-image (original figure):
This ultimately implies that, two (2) similar geometric shapes can have different sizes depending on the scale factor that is applied.
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Put a decimal point in the number 26583 so that the 5 has a value of
100
50
The number as decimal is 26583.0
How to rewrite the number as decimalFrom the question, we have the following parameters that can be used in our computation:
Number = 26583
Also, we have the required value of 5 to be
Required = 100
Using the above as a guide, we have the following:
The number 5 must have a value of 100 in the new number i.e. 500
So, we have
Number = 26583
Rewrite as
Number = 26500 + 83
This means that we add 5 at the end
So, we have
Number = 26583.0
Hence, the new number is 26583.0
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Claudia records the hours is been studying and a test scores for five test
The correlation coefficient when Claudia records the hours she spent studying and her test scores for 5 tests is 0.85. This is a strong positive correlation.
How to explain the correlationAny statistical association between two random variables or bivariate data, whether causal or not, is referred to as dependence or correlation.
Two variables that move together, or in the same direction, are said to have a positive correlation. When one variable rises while the other rises or when one variable falls while the other falls, there is a positive correlation. Theoretically, the same external forces can affect both of these separate variables because they travel in the same direction.
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Claudia records the hours she spent studying and her test scores for 5 tests.
What is the correlation coefficient?
-0.85-0.840.840.85
What is the strength of the model?
Use the data in the table below, which shows the employment status of individuals in a particular town by age group.
Age
0-17
18-25
26-34
35-49
50 +
Full-time
21
267
492
535
520
Part-time
187
200
67
195
166
Unemployed
356
135
28
133
231
If a person is randomly chosen from the town's population, what is the probability that the person is under 18 or employed part-time?
X
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The probability that the person is under 18 or employed part-time is 179/864.
What is experimental probability?Experimental probability calculates the probability of some event from the results of experiments.
For an event E, we get the experimental probability of that event
[tex]P_e(E) = \dfrac{\text{Number of times E occurred}}{\text{Number of times experiments was done}}[/tex]
where,[tex]P_e(E)[/tex] is denoting experimental probability of occurrence of E.
Given that;
The table of age, full time, part time, unemployed
Now,
Total number of people who are between the age group 35-49
= 581+179+104
= 864
Number of people who are employed part time= 179
Number of people employed part time in age group 35-49/ Total people in age group 35-49
= 179/864
Therefore, the probability will be 179/864.
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Choose all of the values that are solutions to inequality x < -2
Answer:
The solution to the inequality x < -2 is all real numbers that are less than -2. This means that any number that is less than -2 will satisfy the inequality, but any number that is greater than or equal to -2 will not.
So, the solution set for x < -2 is all real numbers that are less than -2. This solution set can be expressed as (-∞, -2).
Therefore, the values that are solutions to the inequality x < -2 are:
• all real numbers less than -2, such as -3, -4, -5, etc.
Note that -2 itself is not part of the solution set, since it is not less than -2.
what is 7/8 of 16 times in half of 30?
The simplification of the given expression would be = 210
How to simplify the given expression above?A fraction is defined as the expression of part of a whole value in the form of a denominator and a numerator.
The above statement can be expressed above mathematically as follows:
= 7/8 × 16 × 1/2× 30
= 3360/16
= 210
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An international company has 21,800 employees in one country. If this represents 32.2% of the company's employees, how many employees does it have in
total?
Round your answer to the nearest whole number.
employees
X
Español
?
D
Answer:
Step-by-step explanation:
The international company has 21,800 employees in one country, which represents 32.2% of the company's total employees. We can use this information to find the total number of employees by solving for the missing value.
Let's call the total number of employees in the company "X".
If the 21,800 employees in one country represent 32.2% of the total employees, we can write an equation to represent this relationship:
0.322 * X = 21,800
Next, we'll isolate X by dividing both sides of the equation by 0.322:
X = 21,800 / 0.322
Using a calculator, we can find that:
X = 68,062.5
Rounding to the nearest whole number, the company has 68,063 employees in total.
So, that's how you can use a percentage to find the total number of employees in the company. By knowing the number of employees in one country and the percentage that this represents of the total, we can find the total number of employees in the company.
Solve the inequality √x+2 > -1.
The final inequality is x > - 1.
Option D is the correct answer.
What is inequality?It shows a relationship between two numbers or two expressions.
There are commonly used four inequalities:
Less than = <
Greater than = >
Less than and equal = ≤
Greater than and equal = ≥
We have,
√(x + 2) > -1
Squaring both sides.
x + 2 > (-1)²
x + 2 > 1
Subtracting 2 on both sides.
x > 1 - 2
x > -1
Thus,
x > - 1 is the final inequality.
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-
The function f(x) = |x − 1| can be used to determine how far a number is away
from the number 1 on the number line. Find and interpret the given function values
and determine an appropriate domain for the function.
number line showed for reference
←
-5 -4 -3
-2 -1
O
2 3
f(-5) =
meaning the number
from 1 on the number line. This interpretation
context of the problem.
f(3) =
1 on the number line. This interpretation
the problem.
4 5
is a distance of
meaning the number is a distance of
units away
in the
units away from
in the context of
Answer:
Step-by-step explanation:
The function f(x) = |x − 1| is a absolute value function that calculates the distance of a number x from the number 1 on the number line. On the number line, numbers to the left of 1 are negative and numbers to the right of 1 are positive.
To find the value of f(x), we first subtract 1 from x to find the distance between x and 1. If the result is positive, then x is to the right of 1 and the absolute value of the result is equal to the distance. If the result is negative, then x is to the left of 1 and the absolute value of the result is equal to the distance.
For example, let's find f(-5):
f(-5) = |-5 - 1| = |-6| = 6
The interpretation of f(-5) is that the number -5 is a distance of 6 units away from the number 1 on the number line.
Now let's find f(3):
f(3) = |3 - 1| = |2| = 2
The interpretation of f(3) is that the number 3 is a distance of 2 units away from the number 1 on the number line.
The domain of the function is all real numbers. The range of the function is all non-negative real numbers.
A business puchases a computer system for $3,000. The value of the system decreases at a rate of 15% per year. Write an exponentioal function to model this situation. Then determine how much the comoputer will be work after 3 years
Value of system after 'x' years = [tex]3000*(0.85)^x[/tex]
The value of the computer after 3 years is $1842.375
What is an exponential function?The formula for an exponential function is f(x) =[tex]a^x[/tex], where 'x' is variable and 'a' is a constant that serves as the function's base and must be bigger than 0. The transcendental number e, or roughly 2.71828, is the most often used exponential function basis.
Given that, computer system values at $3000 decrease at a rate of 15% each year.
If the value decreases by 15%, it means that the new value is 85% of the old value.
new value = old value * (85/100)
new value = old value * 0.85
value in 1st year = $3000
value after 1st year = $3000 * 0.85
value after 2nd year = $3000 * 0.85 * 0.85
value after nth year = $3000 * [tex]0.85^n[/tex]
Value of the system after 3 years = $3000 * [tex]0.85^3[/tex]
= $3000 * 0.614125
= $1842.375
Therefore, The value of the computer system after 3 years is $1842.375
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Find the 96th term of the arithmetic sequence 1, -12, -25
Answer:a
Step-by-step explanation:
Shaun White, the Flying Tomato, is rolling down a 30° ramp on his skateboard (because he's not just a snowboarding gold medalist, the bro can skate too). The total mass of Shaun and his skateboard is 75 kg. The rolling friction between the skateboard wheels and the concrete is 9N acting backward against the skateboard. The drag force due to air resistance is 11 N acting backwards against Shaun. What is Shaun's acceleration? 30° 4.64 m/s2 down the slope
Previous question
If the drag force due to air resistance is 11 N acting backwards against Shaun. Shaun's acceleration is 4.64 m/s^2 down the slope.
To find Shaun's acceleration, we need to calculate the net force acting on him and his skateboard. The net force is the vector sum of all the forces acting on the object. We can use Newton's second law of motion, which states that the net force acting on an object is equal to the product of its mass and its acceleration:
Net force = mass × acceleration
Let's break down the forces acting on Shaun and his skateboard:
The force of gravity, which acts vertically downwards with a magnitude of mg, where m is the total mass of Shaun and his skateboard and g is the acceleration due to gravity (9.8 m/s^2).
F₁ = m * g * sin(30°) = 75 kg * 9.8 m/s^2 * sin(30°) = 367.5 N
The force due to rolling friction between the skateboard wheels and the concrete, which acts backward against the skateboard.
F₂ = 9 N (given)
The drag force due to air resistance, which acts backward against Shaun.
F₃ = 11 N (given)
Now, let's add up the forces to get the net force:
Net force = F₁ - F₂ - F₃
= 367.5 N - 9 N - 11 N
= 347.5 N
Using Newton's second law of motion, we can now calculate Shaun's acceleration:
acceleration = Net force / mass
= 347.5 N / 75 kg
= 4.64 m/s^2 (down the slope)
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The first term of an ap is 29 and the seventh term is -13 what is the value of the tenth term
Step-by-step explanation:
an arithmetic progression or arithmetic sequence is a sequence of terms, where the difference bergen neighboring terms is a constant d for the whole sequence.
a1 = 29
a2 = 29 + d
a3 = a2 + d = a1 + d + d = 29 + 2d
...
an = 29 + (n-1)d
a7 = -13 = 29 + 6d
-42 = 6d
d = -42/6 = -7
therefore,
a10 = 29 + 9×-7 = 29 - 63 = -34
Consider the line 8x-5y=1
what is the slope of a line parallel to this line?
What is the slope of a line perpendicular to this line
Answer:
[tex]\frac{8}{5}[/tex] and - [tex]\frac{5}{8}[/tex]
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
given
8x - 5y = 1 ( subtract 8x from both sides )
- 5y = - 8x + 1 ( divide through by - 5 )
y = [tex]\frac{8}{5}[/tex] x - [tex]\frac{1}{5}[/tex] ← in slope- intercept form
with slope m = [tex]\frac{8}{5}[/tex]
• Parallel lines have equal slopes
then the slope of a parallel line is m = [tex]\frac{8}{5}[/tex]
given a line with slope m then the slope of a line perpendicular to it is
[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{\frac{8}{5} }[/tex] = - [tex]\frac{5}{8}[/tex]
A population p of migrating butterflies satisfies the equation p = 100,000 -
100,000 (4/5)"
where w is the number of weeks since they began their migration.
Complete the table with the population after different numbers of weeks.
W
р
0
100000
1
20000
2
4000
What is the vertical intercept of the graph?
800
3
160
The vertical intercept of the graph is 100,000
What is an exponential function?A function whose value is a constant raised to the power of the argument, especially the function where the constant is e, is called an exponential function.
Given that, the population p of migrating butterflies satisfies the exponential function p = 100,000 (4/5)ⁿ, where n is the number of weeks,
So, we need to find the vertical intercept of the graph,
We know that, vertical intercept = intercept
To find the y-intercept of a line, we will put x = 0,
here x is n,
So, the y-intercept of the graph is = 100,000 (4/5)⁰ = 100,000×1 = 100,000
Therefore, the vertical intercept of the graph is 100,000
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Select all of these coordinates that lie on the
line y = 1-2x.
(-5, -9) (-3,7) (4,9) (6, -11)
The coordinates that lie on the equation of line y = 1 - 2x are P ( -3 , 7 ) and Q ( 6, -11)
What is an Equation of a line?The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept
And y - y₁ = m ( x - x₁ )
y = y-coordinate of second point
y₁ = y-coordinate of point one
m = slope
x = x-coordinate of second point
x₁ = x-coordinate of point one
The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given data ,
Let the equation of line be represented as A
Now , the value of A is
Let the first point be P ( -3 , 7 )
Let the second point be Q ( 6 , -11 )
The equation of line is y = 1 - 2x
Substituting the values of x and y in the equation , we get
when x = -3
y = 1 - 2 ( -3 )
y = 1 + 6
y = 7
when x = 6
y = 1 - 2 ( 6 )
y = 1 - 12
y = -11
Hence , the coordinates of the equation of line are P ( -3 , 7 ) and Q ( 6, -11 )
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Winnie made headbands to sell at the school craft fair. She sells each
headband for $6.25 and her goal is to earn at least $50.00. Write and solve
an inequality to represent this situation, where h represents the number
of headbands Winnie must sell in order to reach her goal.
Answer:
6.25 x h = 50.000
Step-by-step explanation:
Answer:
8 headbands.
Step-by-step explanation:
Winnie needs to sell AT LEAST 8 headbands. 50 divided by 6.25 is 8. Remember that the phrase "at least" is represented by a greater-than-or-equal-to symbol.
Two gliders collide on an air track. Glider 1 has a mass of 7. 0 kg, and glider 2 has a mass of 4. 0 kg. Before the collision, glider 1 had a velocity of 2. 0 m/s, and glider 2 had a velocity of -5. 0 m/s. If the collision is perfectly elastic, what is the total kinetic energy of both gliders after the collision?
A. -36. 0 J
B. 36. 0 J
C. 64. 0 J
D. 128. 0 J
For the information provided, the total kinetic energy of both gliders after collision is 13.5 J. In an elastic collision, both momentum and kinetic energy are conserved.
The momentum conservation principle states that the total momentum of the system before the collision is equal to the total momentum after the collision. Mathematically, we can write this as:
m₁v₁i + m₂v₂i = m₁v₁f + m₂v₂f
where m₁ and v₁i are the mass and initial velocity of glider 1, m₂ and v₂i are the mass and initial velocity of glider 2, and v₁f and v₂f are their velocities after the collision.
Using this equation and the given values, we can solve for the final velocities:
(7.0 kg)(2.0 m/s) + (4.0 kg)(-5.0 m/s) = (7.0 kg)v₁f + (4.0 kg)v₂f
14.0 kg·m/s - 20.0 kg·m/s = 7.0 kg·v₁f + 4.0 kg·v₂f
-6.0 kg·m/s = 7.0 kg·v₁f + 4.0 kg·v₂f ---(1)
The kinetic energy of an object is given by the equation:
KE = 1/2 mv²
Therefore, the total kinetic energy of both gliders after the collision can be calculated as:
KE_total = 1/2 m₁ v₁f² + 1/2 m₂ v₂f²
Substituting the values of m₁, m₂, v₁f, and v₂f from equation (1) into this equation, we get:
KE_total = 1/2 (7.0 kg) (0.86 m/s²) + 1/2 (4.0 kg) (5.14 m/s²)
KE_total = 13.5 J
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help me find the measure
Answer:
= 60°
Step-by-step explanation:
Exterior angle =
[tex] = \frac{360}{n} [/tex]
[tex] = \frac{360}{6} \\ = {60}^{o} [/tex]
= 60°
Annie made 4 glasses of juice,her 5 friends drank 1/2 glass each.what fraction of juice was left? how to solve it
[tex]\frac{5}{2}[/tex] juice was left when Annie made 4 glasses of juice, her 5 friends drank [tex]\frac{1}{2}[/tex] glass each.
Meaning of fraction = An element of a whole is a fraction. The number is represented mathematically as a quotient, where the numerator and denominator are split. Both are integers in a simple fraction.
Annie made 4 glasses of juice
To find = fraction of juice that was left
Total glasses of juice = 4
Her 5 friends drank 1/2 glass each
= 5 × [tex]\frac{1}{2}[/tex]
= [tex]\frac{5}{2}[/tex]
Fraction of juice that left,
5 - [tex]\frac{5}{2}[/tex]
Subtracting by taking LCM,
= [tex]\frac{10 - 5}{2}[/tex]
= [tex]\frac{5}{2}[/tex]
[tex]\frac{5}{2}[/tex] juice was left when Annie made 4 glasses of juice, her 5 friends drank 1/2 glass each.
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Help!!! I can’t even find the answer for this question
Answer:
<1 and <2
Step-by-step explanation:
Adjacent means angles that are next to each other. This is not the only pair, but <1 and <2 are adjacent.
Interpret the scatter plot based on the shape of the distribution.
Answer: Looks like a positive correlation with an outlier in the lower left.
Step-by-step explanation:
create a table of values to represent the total cost if ben orders 1 or 2 books or spends 41$, $65 OR $125
The table to represents the total cost for the different numbers of books ordered is:
Number of books Spending Total cost
1 $41 $44
2 $65 $71
3 $125 $134
What is an expression?An expression is written with one or more terms with addition, subtraction, multiplication, and division.
Example:
2.2 + 3x + 4y = 7 is an expression.
3 + 5x = 9 is an expression.
We have,
The book cost = $3
Now,
Spendings = $41, $65, or $125
Now,
Table:
Number of books Spending Total cost
1 $41 41 + 3 = $44
2 $65 65 + 6 = $71
3 $125 125 + 9 = $134
Thus,
The table for the total cost is given above.
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Help, please thank you, and have a wonderful day
The average mass of a certain type of microorganism is 2.4×10^ −6
grams. What is the approximate total mass of 5,000 of these microorganisms?
0.0012 g
0.012
0.12 g
0.00012 g
Answer:
Below
Step-by-step explanation:
5000 * 2.4 x 10^-6 =
12 000 x 10^-6 g
= .012 g
Say that a certain stadium for professional football has 70,000 seats. What is the shape of the
supply curve for tickets to football games at that stadium? Explain.
Answer: The shape of the supply curve for tickets to football games at the stadium with 70,000 seats is upward-sloping. This means that as the price of tickets increases, the quantity of tickets supplied also increases.
The reasoning behind this is simple: when the price of tickets is high, there is more incentive for the sellers (e.g. the stadium, ticket resellers, etc.) to sell more tickets. They have the ability to supply more tickets as the demand for tickets at the high price is likely to be higher, thus increasing their profits.
However, it is important to note that the upward slope of the supply curve is not necessarily linear. The supply curve for tickets to football games is likely to be more elastic in the higher price range, meaning that as the price continues to increase, the quantity supplied may increase at a slower rate. This is because at some point, even if the price continues to rise, there will be a limit to how many tickets can actually be sold due to a decrease in demand.
Overall, the upward-sloping shape of the supply curve for tickets to football games at the stadium with 70,000 seats reflects the basic principle of supply and demand: as the price increases, the quantity supplied will also increase, but at some point, the increase in price will lead to a decrease in demand, limiting the quantity supplied.
Step-by-step explanation:
The relationship between the amount of energy released by an earthquake and its magnitude is described by this formula. Here E is energy, in joules, and M is magnitude. Approximately how much energy is released by a magnitude 5 earthquake? Select the correct answer.logE=5.24+1.44M
Approximately 2.51 x 10¹² joules of energy is released by a magnitude 5 earthquake.
What is a logarithmic equation?A logarithmic equation is an equation that involves a logarithmic function. A logarithmic function is the inverse of an exponential function, and it represents the exponent to which a given base must be raised to obtain a given number.
The formula that relates the energy released by an earthquake to its magnitude is given by:
logE = 5.24 + 1.44M
To find the amount of energy released by a magnitude 5 earthquake, we can substitute M = 5 into the formula and solve for E.
logE = 5.24 + 1.44(5)
logE = 5.24 + 7.2
logE = 12.44
Now we need to convert this logarithmic value to a regular value of E. We can do this by taking the antilogarithm (or exponentiating) both sides of the equation.
10⁽ˡᵒᵍᴱ⁾ = 10⁽¹²ॱ⁴⁴⁾
E = 2.51 x 10¹² joules
Therefore, approximately 2.51 x 10¹² joules of energy is released by a magnitude 5 earthquake.
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A picture of a family crest is 5.1 inches wide. The family needs a reduced copy for the front page of the family
newsletter. The copy must fit in a space 1.3 inches wide. What scale factor should be used on the copy machine to
adjust the size of the picture of the crest?
Answer:
0.255 or 25.5%
Step-by-step explanation:
You want the scale factor that reduces 5.1 inches to 1.3 inches.
Scale factorThe scale factor is the ratio of the image size to the original size:
1.3/5.1 ≈ 0.254902 ≈ 0.255 = 25.5%
__
Additional comment
A scale factor of 0.255 would give an image of 1.3005 inches. That's probably close enough. Rounding to the nearest percent, it would be 25%, which would give an image size of 1.275 inches.
Please helpppp!!!!!!
Step-by-step explanation:
On the region, (-oo,0.5), the graph formes a upside U shaped , this mean the graph is concave down on this region. this implies that our second derivative is negative and our first derivative is changing negatively.
The graph is concave up from (0.5,oo) since the graph formes a U shape.
This also implies that (0.5) is a inflection point
The function crosses the x axis at -1,0,3
So the 2nd,3rd,6th, 7th options are correct
For every 3 lemons you buy at a farm stand, the total cost increases by $1.80.
The constant of proportionality is
An equation that relates the total cost y and the number of lemons x is y=____x
Use the equation you wrote to complete the table.
Answer:
he constant of proportionality is $1.80, since for every 3 lemons the total cost increases by $1.80.
The equation that relates the total cost, y, and the number of lemons, x, is:
y = 1.80 * (x/3) + b
where b is the y-intercept, which represents the cost of 0 lemons. We'll need additional information to determine the value of b.
Here is a table with the values of y and x, assuming b = 0:
x (Number of Lemons) y (Total Cost)
0 0
3 1.80
6 3.60
9 5.40
... ...
Step-by-step explanation:
For a particular 4 leaf clover, the highway had to be compacted on the south side making the circles two different sizes. The two circles on the north of the highway have a radius of 128 feet and the two on the south side have radius of 102 feetCalculate the total area of grass seed needed for these four circles
The total area of the two circles will be 168316.9 square feet.
What is a circle?The circle is defined as a two-dimensional figure having a fixed point and the number of the points is traced around the curved path at an equal distance from the fixed point. The overall figure is called a circle.
The area of the circle is calculated by the formula:-
Area = πr²
Given that the south side of the highway needed to be compacted in order to create two circles of various sizes for a specific four-leaf clover. The two circles on the north side of the road have a 128-foot radius, whereas the two on the south side have a 102-foot radius.
The total area will be calculated as:-
Area = 2 x π x 128² + 2 x π x 102²
Area = 102943.25 + 65370.25
Area = 168316.9 square feet
Hence, the total area will be 168316.9 square feet.
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