Answer:
672 sq cm
Step-by-step explanation:
Each triangular base is 1/2 (12 * 8) or 48, making them = 96.
One of the sides is 12 x 18 = 216
The other 2 sides are 10 x 18 = 180 x 2 = 360
Add them all together to get 672 sq cm
The figure shown is composed of two cubes.
Which equation shows the surface area
ne figure?
SA = 6(5-5)+6(3-3)-2(3-3)
What is the surface area of
the figure shown?
cm²
3cm
5c
186 cm³ will be the surface area of the given figure.
To calculate the surface area of the given figure, we need to add the surface area of two cubes and reduce the area of the hidden part.
Thus,
Total surface area = Surface area of bigger cube + surface area of the smaller cube - 2* surface area of the hidden part.
So,
Total surface area = 6*(5*5)+6*(3*3)-2*(3*3)
Total surface area = 150+54-18
Total surface area = 186
Therefore, the surface area of the given figure will be 186 cm³.
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Few families can survive on a single salary.
Please select the best answer from the choices provided
T
F
Few families can survive on a single salary is true statement
Many families rely on dual incomes to make ends meet, especially in areas with high living costs.
However, there are still many families that rely on a single salary to support themselves.
While it may be challenging to make ends meet on a single salary, it is still possible for families to survive and even thrive in these circumstances.
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Find the quotient of z₁ by z2. Express your answer in
trigonometric
form.
² - 3 (0 (4) + (*))
Z₁ cos
+/sin
Z₂
²2 = 7 (cos(377)+
COS
8
O A. 7 (cos (577) + i sin (5/77))
8
B.
21(cos(577)+isin (577))
8
OC. 21 cos
21(cos(-7)+ i sin(-77))
O D. 7 (cos(-7) + + sin(-7))
i
+/sin
37T
8
The quotient of z₁ by z₂ in trigonometric form is:
7/21 * (cos(584°) + i sin(584°))
To find the quotient of z₁ by z₂ in trigonometric form, we'll express both complex numbers in trigonometric form and then divide them.
Let's represent z₁ in trigonometric form as z₁ = r₁(cosθ₁ + isinθ₁), where r₁ is the magnitude of z₁ and θ₁ is the argument of z₁.
We have:
z₁ = 7(cos(577°) + i sin(577°))
Now, let's represent z₂ in trigonometric form as z₂ = r₂(cosθ₂ + isinθ₂), where r₂ is the magnitude of z₂ and θ₂ is the argument of z₂.
From the given information, we have:
z₂ = 21(cos(-7°) + i sin(-77°))
To find the quotient, we divide z₁ by z₂:
z₁ / z₂ = (r₁/r₂) * [cos(θ₁ - θ₂) + i sin(θ₁ - θ₂)]
Substituting the given values, we have:
z₁ / z₂ = (7/21) * [cos(577° - (-7°)) + i sin(577° - (-7°))]
= (7/21) * [cos(584°) + i sin(584°)]
The quotient of z₁ by z₂ in trigonometric form is:
7/21 * (cos(584°) + i sin(584°))
Option C, 21(cos(-7°) + i sin(-77°)), is not the correct answer as it does not represent the quotient of z₁ by z₂.
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What is the equation of the line (-1,-4) (1,0)
Answer:
what do you mean by equation
Step-by-step explanation:
i was able to get you the slope form of it if thats okay
y=2x-2 in order to find the slope use the pdf i attached it should provide an example
Does the expression x^3-1 divided by x^2 -1 simplify to x?
No, the expression (x^3 - 1) / (x^2 - 1) does not simplify to x.
To simplify the expression, let's first factorize both the numerator and denominator.
The numerator can be factorized using the difference of cubes formula: a^3 - b^3 = (a - b)(a^2 + ab + b^2). So, we have (x^3 - 1) = (x - 1)(x^2 + x + 1).
The denominator is a difference of squares: a^2 - b^2 = (a - b)(a + b). Therefore, (x^2 - 1) = (x - 1)(x + 1).
Now, we can simplify the expression by canceling out the common factors in the numerator and denominator:
[(x - 1)(x^2 + x + 1)] / [(x - 1)(x + 1)]
The (x - 1) terms cancel out, leaving us with:
x^2 + x + 1 / (x + 1)
So, the simplified form of the expression is (x^2 + x + 1) / (x + 1), which is not equal to x.
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1. A biologist Studied the population of white-sided jackrabbits and black-tailed jackrabbits over a 5 year period. He modeled the population, in thousands, with the following polynomials where x is time, in years
White-sided jackrabbits: 6.5x^2-8.7x+5.9
Black-sided jackrabbits: 6.5x^2+9.2x+1.2
2. A family is having a pool built in their backyard. If their backyard is rectangular and measures 8x by 7x and the pool is circular with a radius of 3x how much of the yard will be left over after the pool is built
1. Hence, after 5 years, there are roughly 113,500 white-sided "jackrabbits" and 157,700 black-tailed "jackrabbits" living in North America.
2. Yard will be left over after the pool is built 29.48
What is polynomial ?A polynomial is a mathematical equation that only uses addition, subtraction, multiplication, and non-negative integer exponents and consists of variables (also known as indeterminates) and coefficients. Variables can be present in polynomials, which can be expressed in the following way: \(a 2x2 + a 1x + a 0 + a nxn + a n-1xn-1 +\).. where x is the variable, and the coefficients are a n, a n-1,..., a 2, a 1, a 0. The highest exponent of the variable in an expression is the polynomial's degree. For instance, the polynomial \(3x2 + 2x - 1\)has a degree of 2 since the largest exponent of x is 2. Calculus, algebra, and geometry are just a few of the mathematical disciplines where polynomials are employed.
given,
We can enter x = 5 into the corresponding polynomials to determine the population of white-sided "jackrabbits" and black-tailed "jackrabbits" over a 5-year period.
Regarding white-sided "jackrabbits":
\(8.7(5) + 5.9 - 6.5(5)2 = 113.5\) thousand
For jackrabbits with black tails:
157.7 thousand is equal to \(6.5(5)2 + 9.2(5) + 1.2.\)
Hence, after 5 years, there are roughly 113,500 white-sided "jackrabbits" and 157,700 black-tailed "jackrabbits" living in North America.
The backyard's size is 8 x 7 x 56 x 2.
The pool's surface area is:
\(\pi (3x)^{2} =9\pi x^{2}\)
Following the construction of the pool, the remaining yard space is:
\(56x^{2} -9\pi x^{2}\)\(=14.74x^{2}\)
Consequently, 14.74x2 of the yard will remain after the pool is constructed.
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A show has 4,320,000 viewers for it's season premiere express this number using scientific notation
Answer:
4.32 × 10^6= 4.32 × 10^6
(scientific notation)
= 4.32e6
(scientific e notation)
= 4.32 × 10^6
(engineering notation)
(million; prefix mega- (M))
= 4320000
(real number)
Hence number using scientific notation is 4.32*\(10^{6}\)
What is scientific notations?When a number between 1 and 10 is multiplied by a power of 10, it is written in scientific notation. 650,000,000, for example, can be expressed as 6.5 108 in scientific notation. Sal Khan and the CK-12 Foundation collaborated on this project.
How to solve?Given 4,320,000 which can be broken in 432*10000
Which can be written as 432*\(10^{4}\)
432 can be written as 4.32*100*\(10^{4}\)=4.32*\(10^{6}\)
Hence number using scientific notation is 4.32*\(10^{6}\)
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What is the domain for this function, (x+2)/(x-3)? *
all real numbers except x=2
all real numbers except x=-2
all real numbers except x=3
all real numbers except x=-3
Answer:
C
Step-by-step explanation:
x-3≠0
x≠3
so C
Answer:
it is C
Step-by-step explanation:
i just took the test
Two gymnasts are running toward each other in a floor routine, and they plan to precisely time a flip to stay synchronized for the audience. The path of the gymnasts is
parabolic and modeled by the following equations, where y is the height of the flip and x is the time in seconds:
y = -(x-57 + 3
y = -3/x-3) + X + 1
To make sure the flip is in unison, after how many seconds should the flip occur?
O 2 seconds
O 3 seconds
© 4 seconds
O 5 seconds
Answer:it might be 3
Step-by-step explanation:
due to someone getting 5sec wrong me getting 2 wrong another post with only three stars said 4 so did leave it to 4 or 3.
Solve by graphing. x2 + 2x – 3 = 0
By graphing or visualizing the parabolic shape, we can observe where the graph intersects the x-axis, which represents the solutions to the equation. In this case, the solutions are x = -3 and x = 1.
To solve the quadratic equation x^2 + 2x - 3 = 0 by graphing, we can plot the graph of the equation and find the x-values where the graph intersects the x-axis.
First, let's rearrange the equation to the standard form: x^2 + 2x - 3 = 0.
We can create a graph by plotting points for different values of x and then connecting them. However, I can describe the process and the key points on the graph.
1. Find the x-intercepts: These are the points where the graph intersects the x-axis. To find them, set y (the equation) equal to zero and solve for x:
0 = x^2 + 2x - 3.
This quadratic equation can be factored as (x + 3)(x - 1) = 0.
Therefore, x = -3 or x = 1.
2. Plot the points: Plot the points (-3, 0) and (1, 0) on the graph. These are the x-intercepts.
3. Draw the graph: The graph of the equation x^2 + 2x - 3 = 0 is a parabola that opens upward. It will pass through the x-intercepts (-3, 0) and (1, 0).
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Which is the best description of range?
The repeated values in the input set.
The -values on a graph.
The connection between sets of values.
The input values of a function.
The best description of range is (b) The y-values on a graph.
How to determine the best description of range?A graph is characterized by the following concepts:
DomainRangeThe domain of a function is the set of input values of the graph
On the other hand, the range of a function is the set of output values of the graph
This in other word means that the range is the y-values on a graph.
Hence, the best description of range is (b) The y-values on a graph.
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Answer:
its B
Step-by-step explanation:
the y values on the graph
i did the quiz and got a 100
If we divide the polynomial P by the factor x - c and we
obtain the equation P(x) = (x – c)Q(x) + R(x), then we say
that x - c is the divisor, Q(x) is the
and R(x) is
the
Hello
Step-by-step explanation:
hello I'm Filipino people
can someone help me with 3 questions
Find the area and perimeter/circumference of each shape. If needed, rounded to the nearest tenth. Use 3.14 for pi.
I can only help you with the first one, because I'm new to geometry, but here it is:
Area: 91cm
Perimeter: 136cm You need to add all the side measures together.
Circumference: It isn't possible to find circumference unless it is a circular shape. So there is no circumference for this shape.
I hope this helps!
Which graph represents points on the polar curve r = –4sin(3θ)?
The graph which represents the polar curve r = -4 sin ( 3θ ) is plotted
What are Polar coordinates?Polar coordinates describe the position of a point P in the plane by its separation from the origin, r, and the angle formed between the positive x-axis and the line segment leading to P.
To graph the polar curve, we make use of the following representations:
r represents the y-axis
θ represents the x-axis
Polar coordinates can also be extended into three dimensions using the coordinates (ρ, φ, θ), where ρ is the distance from the pole, φ is the angle from the z-axis ( called the co-latitude or zenith and measured from 0 to 180° ) and θ is the angle from the x-axis ( as in the polar coordinates ).
Given data ,
Let the polar curve be represented as A
Now , the polar coordinates is given as
r = -4 sin ( 3θ )
And , To graph the polar curve, we make use of the following representations:
r represents the y-axis
θ represents the x-axis
So , on simplifying , we get
The graph which represents the polar curve r = -4 sin ( 3θ ) is plotted
Hence , the polar curve is r = -4 sin ( 3θ )
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Answer:
D
Step-by-step explanation:
Round the following number to 2 decimal places 3.083
3.083 when rounded up to 2 decimal places is equal to 3.08.
Sunshine Preschool has a teeter totter that spins in a circle. The distance from the center to the outside edge of the teeter totter is 37 inches (in.).
What is the circumference of the circle that the teeter totter makes as it spins? Round your answer to the nearest hundredth of an inch.
The formula for circumference is used to determine the diameter of the circle that the teeter totter creates as it spins, which is 232.12 inches.
The circumference of the circle that the teeter totter makes as it spins is given by the formula:
Circumference = 2 * pi * radius
where "pi" is the mathematical constant approximately equal to 3.14, and "radius" is the distance from the center of the circle to its outside edge.
In this problem, we are given that the distance from the center to the outside edge of the teeter totter is 37 inches, which means that the radius of the circle is also 37 inches. Therefore, we can use the formula for circumference to calculate the distance around the circle that the teeter totter makes as it spins.
In this case, the radius is 37 inches, so we can plug in these values to get:
Circumference = 2 * 3.14 * 37
Simplifying this expression gives:
Circumference = 232.12
Therefore, the circumference of the circle that the teeter totter makes as it spins is approximately 232.12 inches, rounded to the nearest hundredth of an inch.
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If ✓(x+iy) =a+ib, then find ✓(x-iy) and x^2+y^2.
The values of the complex expressions are ✓(x - iy) = a - ib and x² + y² = (a + ib)²(a - ib)²
Calculating the complex expressionsFrom the question, we have the following parameters that can be used in our computation:
✓(x + iy) = a + ib
Changing the signs, we have
✓(x - iy) = a - ib
Multiply both expressions
This gives
✓(x + iy) * ✓(x - iy) = (a + ib)(a - ib)
Square both sides
So, we have
(x + iy) * (x - iy) = (a + ib)²(a - ib)²
This gives
x² + y² = (a + ib)²(a - ib)²
Hence, the values of ✓(x - iy) is a - ib and x² + y² is (a + ib)²(a - ib)²
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Will make you brainlistt if it is right
Answer:
The amount of weeks is your independent variable, or X variable, and the height is you dependents variable.
Step-by-step explanation:
I don't know what this question is about so I'm gonna use plants as an example. The amounts of weeks that you are growing a plant is not dependent on anything. Nothing can cause change to that variable, so it would be your X. The height that your plant has grown DOES depend on how long you've grown it, so the amount of weeks, making it your Y variable.
Find the slope and y-intercept of the line represented by the table. X 0 3 6 9 12 у 4 19 34 49 64 The slope is m = , and the y-intercept is b =
The equation of line passes through the point (x_1,y_1) and (x_2,y_2) is,
\(y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\)Substitute the coordinates of the points in the equation to obtain the equation of line.
\(\begin{gathered} y-4=\frac{19-4}{3-0}(x-0) \\ y-4=5x-5\cdot0 \\ y=5x+4 \end{gathered}\)The general equation of line with slope m and y-intercept b is,
\(y=mx+b\)On compare the general equation with y=5x+4, it can be observed that slope is m=5 and y intercept b is 4.
So answer is m=5 and b=4.
HELP ASAP
In the diagram, m ZAFB = 78°
Which angle is supplementary to ZAFB and what is its measure?
Answer:
Angle AFE = 102(degree symbol)
Step-by-step explanation:
supplementary means two angles that add up to 180
hope this helps! :)
Answer:
The angle supplementary to ∠AFB is ∠EFA.
The reason why this is, is because a supplementary angle consists of two angles that have a sum of 180°.
Supplementary angles combine to form a straight line.
In this case, ∠EFA is the supplement of ∠AFB because, ∠EFA is the other part of the angle, AFB, that creates a full straight line(180°).
And to find the value of m∠EFA you would need to arrange an equation.
Since we know that the given angle measure of AFB is 78°, ∠EFA would have to equal a different measure so that both measures will have a sum of 180°.
We will consider the value of m∠EFA to be 'x' in our equation, so;
x + 78 = 180°
Solve for x:-
-78 -78
x = 102°, therefore m∠EFA = 102°.
two in-line skaters, nell and kristin, start from the same point and skate in the same direction. nell skates at 10 miles per hour and kristin skates at 12 miles per hour. if they can keep up the pace for 3.5 hours, how far apart with the ne ar the end of that time
Answer:
7 miles
Step-by-step explanation:
You want to know how far apart two skaters are after 3.5 hours when they start together and one is traveling 10 mph while the other is traveling 12 mph in the same direction.
DistanceThe relation between time, speed, and distance is ...
distance = speed × time
For this problem, the relevant speed is the speed of separation of the two skaters. That is the difference of their speeds: 12 mph -10 mph = 2 mph. Then their separation distance after 3.5 hours is ...
distance apart = (2 mi/h) × (3.5 h) = 7 mi
Nell and Kristin will be 7 miles at the end of 3.5 hours.
simiply the following (-4)⁶÷(-4)³.i will mark as brainlest
ILL GIVE BRAINLEST, tell whether the angles are adjacent or vertical. then find the value of x.
Answer:
The angles are adjacent and x=100
the profit when selling 'x' pairs of shoes is P(x)=-4x^2+32x-39. How many pairs of shoes should be sold in order to maximize the profit
4 pairs
5 pairs
6 pairs
7 pairs
Answer:
A
Step-by-step explanation:
The profit for selling x pairs of shoes is given by:
\(P(x)=-4x^2+32x-39\)
And we want to determine the number of pairs that needs to be sold in order to maximize profit.
Since the function is a quadratic with a negative leading coefficient, the maximum profit will occur at its vertex point. The x-coordinate of the vertex of a quadratic is given by:
\(\displaystyle x=-\frac{b}{2a}\)
In this case, a = -4, b = 32, and c = -39. Substitute and evaluate:
\(\displaystyle x=-\frac{(32)}{2(-4)}=\frac{32}{8}=4\)
So, in order to maximize profit, only four pairs of sohoes should be sold.
Our answer is A.
Answer:
A
Step-by-step explanation:
Attempt due:
1 Hour, 23
Given; WZYX, W ZXZYXZ
Prove: WXYZ
verse
Statement
Reason
1. Given
1. WZYX
2. ZWZXYXZ
2. Given
3. XZXZ
3. Select
4. AWZX AYXZ
4. [Select
5. WXYZ
5. CPCTC
Please help me with this
Answer: none of these
Step-by-step explanation:
Ken volunteers 1hr25min each day. How many hours of volunteering is completed in 4 weeks? Enter a mixed number.
He completed volunteering in 39 hours 40 minutes in 4 weeks
How to determine this
If Ken volunteers 1 hr 25 mins each day
i.e 1 hr 25 mins = 1 days
By converting 1 hr 25 mins to mins
When 60 mins = 1 hr
1 hr 25 mins = 60 + 25 = 85 mins
How many hours of volunteering is completed in 4 weeks
Let x represent the numbers of hours
i.e x = 4 weeks
By converting 4 weeks to days
When 7 days = 1 week
4 weeks = 4 * 7 days
= 28 days
So, when 85 mins = 1 day
x mins = 28 days
x = 28 days * 85 mins/1 day
x = 2380 mins
By converting it back to hour
When 60 mins = 1 hour
2380 mins = x
x = 2380/60 hour
x = 39 hours 40 mins
Therefore, the hours that can be completed in 4 weeks is 39 hours 40 minutes
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The graph below shows the solution to which system of inequalities?
100 Points! Geometry question. Photo attached. Only looking for an answer to B. Please show as much work as possible. Thank you!
Answer: Read the solution
Step-by-step explanation:
A. For diagram A, triangles ANC and BDE are similar. Thus, we can use similarity ratios to find the length of AC. (x+1)/12 = (x+5)/15. 15x+15=12x+60. Thus 3x=45, and x=15. Since we need to find AC, AC = 15+1 = 16.
B. For diagram B, triangles SRT and VUT are similar. Again, using similarity ratios, (4x-1)/14=(x+2)/6 or 14x+28=24x-6. 10x=34, x=3.4.
For function a, find the general derivative as a new function by using the limit definition
we have the function
\(f(x)=\frac{x}{3x+1}\)Applying the limit definition
\(f^{\prime}(x)=\lim _{h\to0}\frac{f(x+h)-f(x)}{h}\)substitute given values
\(\lim _{h\to0}\frac{\frac{x+h}{3(x+h)+1}-\frac{x}{3x+1}}{h}\)\(\lim _{h\to0}\frac{\frac{x+h}{3x+3h+1}-\frac{x}{3x+1}}{h}\)\(\lim _{h\to0}\text{ }\frac{\frac{(3x+1)(x+h)-(3x+3h+1)x}{(3x+3h+1)(3x+1)}}{h}\)simplify
\(\lim _{h\to0}\text{ }\frac{\frac{(3x^2+3xh+x+h)-(3x^2+3hx+x)}{(9x^2+3x+9xh+3h+3x+1)}}{h}\)\(\lim _{h\to0}\text{ }\frac{\frac{h^{}}{(9x^2+6x+9xh+3h+1)}}{h}\)\(\lim _{h\to0}\text{ }\frac{1}{(9x^2+6x+9xh+3h+1)}=\frac{1}{(9x^2+6x+1)}\)therefore
\(f^{\prime}(x)=\frac{1}{(9x^2+6x+1)}\)simplify
\(f^{\prime}(x)=\frac{1}{(3x+1)^2}\)