Recall properties of symmetry:
Line - reflection mirror,Rotational - you can rotate it about its center and it will overlap with the initial shape after minimum of 180 degrees rotation,Point - the center is acting as a midpoint of the segment formed by opposite points. Rotational symmetry of even order is also a point symmetry.Using the properties we can state that:
#5It has rotational (of order 2) and point symmetry.#6It has no symmetry.#7It has rotational (of order 3) symmetry.#8It has rotational (of order 6) and point symmetry.Step-by-step explanation:
6.25 points
Find the GCF for the list.
10m4, 40m⁹
10m5
40m4
10m4
6.25 points
list
Write an equation of the line that passes through (8,9) and is parallel to the line y = -x-2.
An equation of the parallel line is
Answer:
y - 9 = -1 (x-8)Step-by-step explanation:
y - y₁ = m (x - x₁) would be your formula, since it's parallel you already have your slope, -x (which also equals 1 so technically -1). You have a point (8,9) and a slope -1, all you need to do is plug it in the formula.
Hope this helped!!
What is the prime factorization of 16807 1680716807? Enter your answer as a product of prime numbers, like 2 × 3 2×32, times, 3, or as a single prime number, like 17 1717.
The Prime Factorization of 16807 are:7, 7, 7, 7, 7. This implies 7 raise to power 5.
What is prime factorization?The term "Prime Factorization" refers to determining which prime numbers multiply together to produce the original number.
The process of writing all numbers as a product of primes is known as prime factorization. As an example, suppose we have the number 20. We can divide this into two categories. "Well, that's 2 time 2 times 5," we can say. Also, 5 is a prime number.
In this case 16807 will be:
16807 ÷ 7 = 2401
2401 ÷ 7 = 343
343 ÷ 7 = 49
49 ÷ 7 = 7
7 ÷ 7 = 1
Again, all the prime numbers you used to divide above are the Prime Factors of 16807. Thus, the Prime Factors of 16807 are:7, 7, 7, 7, 7.
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When a number is divided by 9, and the remainder is 6. What is the
remainder when six times this number is divided by 9?
Answer:
9x + 6
Step-by-step explanation:
SOLUTION GIVEN: a number is divided by 9 and the remainder is 6,
TO DETERMINE: The remainder when six times the number is divided by 9
EVALUATION: Here it is given that the number is divided by 9 & the remainder is 6
We know that Dividend = Divisor × Quotient + Remainder
By the given Divisor = 9
Remainder = 6
Let quotient = x
Then the number = Dividend = 9x + 6
Two cars start moving from the same point. One travels south at 56 km/h and the other travels west at 42 km/h. At what rate (in km/h) is the distance between the cars increasing three hours later?
The distance between the cars increasing three hours later rate (in km/h) is 70km/h.
What do you mean by distance?
Distance is the sum of an object's movements, regardless of direction. Distance can be defined as the amount of space an object has covered, regardless of its starting or ending position.
According to the given question,
We have given information:
Two cars start moving from the same point. One travels south at 56 km/h and the other travels west at 42 km/h.
Now, we will calculate the distance between the cars increasing three hours later,
S² + W² = D²
where S is the southbound car,
W is the westbound car,
D is the distance,
2 * S dS/dt + 2 W dW/dt = 2 D dD/dt
S dS/dt + W dW/dt = D dD/dt
In 3 hours,
S=3*56 = 168 and W = 3*42 = 126
and D = [tex]\sqrt{(168)^{2}+ (126)^{2}}[/tex] = 210
168 * 56 + 126 * 42 = 210 * dD/dt
(168 * 56 + 126 * 42) / 210 = dD/dt
dD/dt = (9408+5292)/210
dD/dt = 14700/210 = 70
Therefore, the distance between the cars increasing three hours later rate (in km/h) is 70km/h.
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I need help please help me with this
Answer:
120
Step-by-step explanation:
MNT is equal to RQT.
That means R equal to M, T equal to T, equal to N.
Q also equals 180-(T+R)
Q=180-(35+25)
Q=180-60
Q=120
The product of a number and 3 is twice the sum of that number and 5
The number that the product and 3 is twice the sum of that number and 5 is 10.
How to find the number?The product of a number and 3 is twice the sum of that number and 5.
Therefore,
let
x = the number
Hence,
3 × x = 2(x + 5)
3x = 2(x + 5)
3x = 2x + 10
subtract 2x from both sides of the equation
3x = 2x + 10
3x - 2x = 2x - 2x + 10
x = 10
Therefore, the number is 10.
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Im having trouble with my homework and im not sure how to do this question could someone please explain?
line u has an equation of y+6=3/2(x–6). Line v is perpendicular to line u and passes through (2,–1). What is the equation of line v?
Anything helps! Thanks you :)
a line that passes thru (-3,4) and is parallel to y=2
Parallel lines have the same slope.
y=2 is a horizontal line and has a slope of 0, so the line parallel to it must also be horizontal and have a slope of 0.
Horizontal lines always have the form " y = k " for some number k and every point on that line has a y-value of k.
In this case, if you want the line to go through the point (-3,4), then the equation will be " y = 4 ", since that's the y-value of the point on the line.
Answer:
y = 4
Step-by-step explanation:
A line with the equation y = a is a horizontal line that intercepts the y-axis at (0, a).
A line parallel to a horizontal line is another horizontal line.
If a horizontal line passes through point (p, q), then its equation is y = q, where q is the y-value of the point.
Therefore, the equation of a line that passes through (-3, 4) and is parallel to y = 2 is:
y = 4Ann is 10 years older than Bob. Ten years ago, Ann was twice as the old as Bob. How old is Ann now? How old is Bob now?
It doesn't seem like there is enough information to solve the scenario.
The biggest part we are missing to properly solve this would be:
We are missing the current age of Ann.Convert 8 ounces into grams. Round your
answer to the nearest whole number.
*Note: you must use these exact conversion factors to
get this question right.
Answer:
227
Step-by-step explanation:
I think
A car advertisement states that a certain car can accelerate from rest to 72 km/h in 12.5 seconds.
Initially the car is at rest, so the initial velocity is ______
m/s.
The car speeds up to 72 km/h which is equivalent to _______
m/s. Find the car’s average acceleration.
The acceleration of the car is _______
m/s2
The initial velocity is 0 m/sec
The car speed up to 72km/h which is equivalent to 36m/sec
The acceleration of the car is 2.88 m/sec².
What is acceleration?Acceleration is the rate of change of the velocity of an object with respect to time. Vector quantities are accelerations. Acceleration = (Final Velocity - Initial Velocity)/ Time taken
Given that car can accelerate from rest to 72km/h in 12.5 seconds. Therefore, we can write:
Initial Velocity = 0 m/sec
Final Velocity = 72 km/hr = 72×(0.50) m/sec = 36m/sec
Time taken = 12.5 second
Now, the car’s acceleration in m/s can be written as,
Acceleration = (Final Velocity - Initial Velocity)/ Time taken
(36 m/sec - 0 m/sec)/12.5 seconds
= 2.88 m/sec²
Hence, the car’s acceleration in m/s is 2.88 m/sec².
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Describe and correct the error in writing an equation of the line that passes through (1, 3) and is parallel to the line y=1/2x+2
The equation of the line that is parallel to the line y = 1/2x + 2 is: y = 1/2x + 5/2.
How to Write the Equation of Parallel Lines?Recall that if two lines are parallel, they will have the same slope (m).
Slope of a line (m) = change in y / change in x.
The slope (m) of the equation, y = 1/2x + 2, that represents a line is 1/2.
This means that the line that is parallel to it will also have a slope (m) that is equal to 1/2.
Find the y-intercept by substituting m = 1/2 and (x, y) = (1, 3) into y = mx + b:
3 = 1/2(1) + b
3 = 1/2 + b
3 - 1/2 = b
5/2 = b
b = 5/2
To write the equation of the parallel line, substitute m = 1/2 and b = 5/2 into y = mx + b:
y = 1/2x + 5/2.
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The ratio of a to b is constant, and a = 9 when b = 6. What is the value when a = 2? Round your answer to the nearest hundredths, if necessary
If ratio of a to b is constant, and a = 9 when b = 6 then value of b is 4/3 when a is 2.
What is Ratio?A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.
Given,
The ratio of a to b is constant,
a = 9 when b = 6.
We need to find value of b when a=2.
Let us consider the value be x.
Let us form an equation
9/6=2/x
Apply cross multiplication
9x=12
Divide both sides by 9
x=12/9=4/3
Hence, if ratio of a to b is constant, and a = 9 when b = 6 then value of b is 4/3 when a is 2.
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WILL GIVE BRAINLIEST Suppose that the functions q and r are defined as follows.
q (x) = x^2 + 7
r (x) = [tex]\sqrt{x+4}[/tex]
Find the following:
(r *q) (5) =
(q *r) (5) =
The values of the composite functions are
(r * q)(5) = 96
(q * r)(5) = 96
How to evaluate the composite functions?From the question, we have the following functions that can be used in our computation:
q(x) = x² + 7
r(x) = √(x + 4)
The composite functions are given as
(r * q)(5) and (q * r)(5)
The base functions of the above composite functions are
(r * q)(x) and (q * r)(x)
And they are calculated using
(r * q)(x) = r(x) * q(x)
(q * r)(x) = q(x) * r(x)
Substitute the known values in the above equations
So, we have the following equations
(r * q)(x) = (x² + 7) * (√(x + 4))
(q * r)(x) = (√(x + 4)) * (x² + 7)
Substitute 5 for x
(r * q)(5) = (5² + 7) * (√(5 + 4))
(q * r)(5) = (√(5 + 4)) * (5² + 7)
Evaluate the equations
(r * q)(5) = 96
(q * r)(5) = 96
Hence, the solution of the composite functions is 96
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The monthly water bill is a function of the number of gallons used. The cost is $11.70 for 10,000 gal or less. Over 10,000 gal, the cost is $11.70 plus $1 for each 1000 gal over 10,000 with any fraction of 1000 gal charged at a fraction of $1. On what interval is the cost constant? On what interval is the cost increasing?
Answer:
Interval for constant cost = [0, 10,000] same as 0 <= x <= 10,000
Interval for increasing cost = (10,000, ∞) same as 10,000 < x < ∞
Be careful! note the use of different types of parentheses for each answer part as explained below
Step-by-step explanation:
We are only being asked for the two intervals, not the function definition itself which would have made it a little bit more work. A function has inputs and outputs. Here the input is gallons of water and output is $ cost.
Normally when asked for intervals we use a variable. Let's call it x which represents the gallons of water used
Since there is a base rate of $11.70 whether or not any water is consumed as long as it is less than or equal to 10,000 gallons we can state that over the interval 0 to 10000 (inclusive), the cost is constant
We can represent this interval in two ways
0 ≤ x ≤ 10,000
Another way of representing this interval is what we call interval notation. In interval notation the same thing can be expressed as:
[0, 10000]
Here 0 is referred to as the lower limit or bound(minimum) and the 10,000 is referred to as the upper limit or upper bound
Note the use of square brackets. This means that both upper and lower limits are included in the function. Such an interval is also called a closed interval.
After 10,000 gallons, the cost keeps increasing. There is no upper limit on the usage of water. So the lower limit is 10,000 (but does not include that number) and upper limit is infinity
We represent this interval as
10000 < x < ∞
Note that both upper and lower limits are excluded since ∞ is not realistic.
In interval notation this is represented as
(10000, ∞)
Here we are using regular brackets(parentheses) because this interval does not include lower and upper limits
This kind of interval is known as an open interval
Looks like the purpose of this question is to make sure what you understand in terms of interval notation and possibly open and closed intervals. The only relevant number there is the 10,000 gallons which represents the upper bound on the first interval. All the other numbers can be junked
Hope that is of help even if it was wordy
Solve the system of equations.
2/3 x - y/2 = 17/6
x/4 - 5/8 y = 5/8
Answer:
x = 3y/4 + 17/4 and
x = 5y/2 + 5/2
Step-by-step explanation:
hope this help
Simplify the Expressions Drag and drop the matching
The simple form of all the expressions are:
-3 + 4m + (-7) - 6m = -2m -10
6x + (-1) - 3x + 12 = 3x + 11
3xy +2z - 16 + 6xy = 9xy +2z - 16
-4x - 8 + 2x + (-3) - 5x = -7x - 11
3m² - m + 7 + 3m² + 1 = 6m² - m + 8.
What is the simple form of the polynomial?
f(x) = anxn + anxn+1 +... + a2x2 + a1x + a0 is the formula for a polynomial. The greatest power of x in an expression is the polynomial's degree. Polynomials of degree 0, 1, 2, 3, and 4 are constant (non-zero) polynomials, linear polynomials, quadratics, cubics, and quartics, respectively.
We have,
-3 + 4m + (-7) - 6m
6x + (-1) - 3x + 12
3xy +2z - 16 + 6xy
-4x - 8 + 2x + (-3) - 5x
3m² - m + 7 + 3m² + 1
The simple form of the expressions:
-3 + 4m + (-7) - 6m
= -2m -10
6x + (-1) - 3x + 12
= 3x + 11
3xy +2z - 16 + 6xy
= 9xy +2z - 16
-4x - 8 + 2x + (-3) - 5x
= -7x - 11
3m² - m + 7 + 3m² + 1
= 6m² - m + 8
Hence, the simple form of all the expressions are:
-3 + 4m + (-7) - 6m = -2m -10
6x + (-1) - 3x + 12 = 3x + 11
3xy +2z - 16 + 6xy = 9xy +2z - 16
-4x - 8 + 2x + (-3) - 5x = -7x - 11
3m² - m + 7 + 3m² + 1 = 6m² - m + 8
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Which equation models the line on the graph?
Answer:
C) y - 2 = 2 ( x - 3 )
Step-by-step explanation:
This is point-slope form btw. Hope it helps!
Find the y-intercept of the line 12x+16y=6.
Answer:
[tex]\frac{3}{8}[/tex]
Step-by-step explanation:
To find the y-intercept you need to put convert it into the equation:
y = mx + b where b = the y-intercept.
12x + 16y = 6. First rearrange the equation so y is on side of the equation.
16y = -12x + 6. Now divide by 16 so the equation has y as a stand alone value.
y = [tex]\frac{-3}{4}[/tex]x + [tex]\frac{3}{8}[/tex]
Therefore the y-intercept is [tex]\frac{3}{8}[/tex]
Graph the following equation using a table of values,
y=x+10
Answer:
The table in the attached figure N 1
The graph in the attached figure n 2
Step-by-step explanation:
we have
x+2=y
we know that
To graph a linear equation the best way is plot the intercepts
Find the y-intercept
The y-intercept is the value of y when the value of x is equal to zero
For x=0
0+2=y
y=2
The y-intercept is the point (0,2)
Find the x-intercept
The x-intercept is the value of x when the value of y is equal to zero
For y=0
x+2=0
x=-2
The x-intercept is the point (-2,0)
Find additional points to create a table (is not necessary for plot the line)
For x=1
1+2=y
y=3
For x=2
2+2=y
y=4
The table in the attached figure N 1
Graph the linear equation ------> plot the intercepts a joined the points
see the attached figure N 2
Solve the system of linear equations by graphing. y = 3/4x-4 y= -1/2x+11
Taking into account the definition of a system of linear equations, the solution of the linear equation is (12,5).
System of linear equationsA system of linear equations is a set of two or more equations of the first degree, in which two or more unknowns are related.
Solving a system of equations consists of finding the value of each unknown so that all the equations of the system are satisfied.
This caseIn this case, the system of equations to be solved is
y = 3/4x-4
y= -1/2x+11
There are several methods to solve a system of equations, it is decided to solve it using the graphical method. This method consists of representing the graphs associated with the equations of the system to deduce its solution. The solution of the system is the point of intersection between the graphs since the coordinates of said point satisfy both equations.
In this case, graphing both equations, it is obtained that the point of intersection, and therefore the solution, is (12,5).
The graph of the system of equations is attached.
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32x = 3(5x−8) is equivalent to the equation 3(2x) = 3(5x − 8).
True
False
Answer: False
Step-by-step explanation:
This is because when u simplify 32x = 3(5x−8), it is 32x = 15x - 24
When u simplify 3(2x) = 3(5x − 8), you will get 6x = 15x - 24
An object was launched from the top of a hill with an upward vertical velocity of 170 feet per second. The height of the object can be
modeled by the function h(t) = -16t2 + 170t + 100, where t represents the number of seconds after the launch. Assume the object landed on the ground at sea level. Use technology to find the answer.
The object was __ feet in the air 9 seconds after it was launched.
The object was 334 feet in the air 9 seconds after it was launched.
The height of an object launched from the top of a hill can be modeled by the function h(t) = -16t² + 170t + 100, where t represents the number of seconds after the launch.
This function gives the height of the object in feet at any time t after the launch.
To find the height of the object 9 seconds after it was launched,
Substitute 9 for t in the function h(t) to calculate the height of the object at that time. This gives us the equation :
⇒ h(9) = -16(9)² + 170(9) + 100
⇒ h(9) = -16(81) + 1530 + 100
⇒ h(9) = -1296 + 1530 + 100
⇒ h(9) = 334 feet.
Therefore, 9 seconds after being launched, the object had reached a height of 334 feet.
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I need help with this please help me
Answer:
67.38
Step-by-step explanation:
134.76/2 = 67.38
May I please have brainliest for this? Thank you!
Will give brainliest. urgent, 100 points
a) Yes , the variable y varies directly with x
b) The constant of variation is k = 1/3
c) The function rule is given by the equation y = x/3
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be A
Now , the values of x are in set P = { 57 , 63 , 66 }
The values of y are in the set Q = { 19 , 21 , 22 }
a)
From the data set of P and Q , we can see that when the value of y increase the value of x also increases
Therefore , the value of variable y varies directly with x
And , y ∝ x
b)
The value of variable y varies directly with x
And , y ∝ x
So , y = kx
Substituting the value for x and y from the data set , we get
The equation will be
y = kx
19 = 57k
Divide by 57 on both sides of the equation , we get
k = 19 / 57
k = 1/3
Therefore , the constant of variation k is 1/3
c)
The function rule is given by the equation
y = kx
Substituting the value for k in the equation , we get
y = ( 1/3 ) x
y = x/3
Hence ,
a) Yes , the variable y varies directly with x
b) The constant of variation is k = 1/3
c) The function rule is given by the equation y = x/3
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Answer:
its six hundred men
Step-by-step explanation:
its Six hundred men, six hundred men under my command
With only one goal in mind
Make it back alive to our homeland
Six hundred men, six hundred miles of open sea
But the problem's not the distance
It's what lies in between
And Ithaca's waiting Ithaca's waiting
My kingdom is waiting The kingdom is waiting
Penelope's waiting for me
So full speed ahead, full speed ahead
Please help my cousin needs help i appreciate your help!
The area of the softball field is 4732 yd²
What is area?Area is defined as the total space taken up by a flat (2-D) surface or shape of an object.
Given is a field with side measurements,
To find the area will we divide the field into a trapezium and a triangle,
Area of trapezium = (sum of parallel sides)x height/2
Area of triangle = 1/2xbasexheight
Area of trapezium = (104+52)x26/2 = 2028 yd²
Area of triangle = 2704 yd²
Area of the field = 2704 + 2028 = 4732 yd²
Hence, The area of the softball field is 4732 yd²
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what is the missing lengths for the problems?
Answer:
≈5.6
Step-by-step explanation:
Use ratios: 4/3 = 7.5/x
3 times 7.5 then divide by 4 to get 5.6
Let me know if this helped you out!
I need to show work
#1. (-2/7) + (-4/7)
#2. 5.4+ (-8.6)
Answer:
#1. -6/7
#2. -3.2
Step-by-step explanation:
#1. (-2/7) + (-4/7)
You are adding two negative numbers.
When you add two positive numbers or two negative numbers, just ignore the signs and add the numbers as positive numbers. Then the answer has the same sign as the original numbers.
Step 1. Ignore the signs and make both numbers positive.
Add 2/7 and 4/7.
2/7 + 4/7 = 6/7
Step 2. Since the two numbers are originally negative, the answer is negative.
(-2/7) + (-4/7) = -6/7
#2. 5.4 + (-8.6)
When you add a positive number and a negative number, first make both numbers positive. Then, subtract the smaller positive number from the larger positive number. Finally, the answer has the same sign as the original number that corresponds to the larger positive number.
Here we do it step by step.
5.4 + (-8.6)
Step 1. Make both numbers positive. The numbers now are:
5.4 and 8.6
Step 2. Subtract the smaller positive number from the larger positive number.
8.6 - 5.4 = 3.2
Now look at the two positive numbers. 5.4 and 8.6. The larger number is 8.6. The original number that 8.6 came from is -8.6, a negative number, so the answer is negative.
5.4 + (-8.6) = -3.2
If f(x)=2x-3 and g(x)= [tex]\sqrt{x} +7[/tex]
then find f(g(x))
The value of the function, f(g(x)), is f(g(x)) = 2√x + 11
Evaluating a functionFrom the question, we are to determine the value of the given function f(g(x))
From the given information,
The given functions are
f(x) = 2x - 3
and
g(x) = √x + 7
To determine f(g(x)), we will substitute the value of g(x) for x in f(x)
That is,
f(x) = 2x - 3
f(g(x)) = 2(√x + 7) - 3
Apply the distributive property
f(g(x)) = 2√x + 14 - 3
Simplify
f(g(x)) = 2√x + 11
Hence, the value of f(g(x)) is 2√x + 11
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