k is dividing on the left, then it will multiply on the right
15 is dividing on the right, then it will multiply on the left
\(\begin{gathered} 3\cdot15=5\cdot k \\ 45=5\cdot k \end{gathered}\)5 is multiplying on the right, then it will divide on the left
\(\begin{gathered} \frac{45}{5}=k \\ 9=k \end{gathered}\)Instructions: Use the ratio of a 30-60-90 triangle to solve for the variables. Leave your answers as radicals in simplest form.
If you are using a screen-reader, please consult your instructor for assistance.
x=
y=
Using the ratio of the sides, we have:$x\sqrt{3} = 12\sqrt{3}$ (opposite the $60^{\circ}$ angle is 12$\sqrt{3}$)$x = 2\sqrt{3}\cdot6$ (the hypotenuse is $2x = 12\sqrt{3}$)Simplifying, we have:$x = 12\sqrt{3}$. Therefore $x=y=12\sqrt{3}$, which is our answer
In a 30-60-90 triangle, the sides have the ratio of $1: \sqrt{3}: 2$. Let's apply this to solve for the variables in the given problem.
Instructions: Use the ratio of a 30-60-90 triangle to solve for the variables. Leave your answers as radicals in simplest form. x=y=Let's first find the ratio of the sides in a 30-60-90 triangle.
Since the hypotenuse is always twice as long as the shorter leg, we can let $x$ be the shorter leg and $2x$ be the hypotenuse.
Thus, we have: Shorter leg: $x$Opposite the $60^{\circ}$ angle: $x\sqrt{3}$ Hypotenuse: $2x$
Now, let's apply this ratio to solve for the variables in the given problem. We know that $x = y$ since they are equal in the problem.
Using the ratio of the sides, we have:$x\sqrt{3} = 12\sqrt{3}$ (opposite the $60^{\circ}$ angle is 12$\sqrt{3}$)$x = 2\sqrt{3}\cdot6$ (the hypotenuse is $2x = 12\sqrt{3}$)Simplifying, we have:$x = 12\sqrt{3}$
Therefore, $x=y=12\sqrt{3}$, which is our answer.
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Is this a function or not?
Answer:
It is a function!
Step-by-step explanation:
It wouldnt be a funtion if the arrows pointed to the same number hope this helps!:)
Find the value of x 116 degrees and 33 degrees
Answer:
x = 31 degrees
Step-by-step explanation:
This is a triangle because there are 3 angles so they all add up to 180 degrees.
116 + 33 + x + 180 Add 116 and 33
149 + x = 180 subtract both sides by 149
x = 31
HELPP
You want to enclose a rectangular region with an area of
1200 square feet and a length of 40 feet, 50 feet, or 60 feet.
Find the perimeter for each possible region. Explain why
you might rewrite the area formula to find the solutions.
The possible perimeters are 140 feet, 148 feet and 160 feet.
In order to determine the width that would be used to determine the possible perimeters, the formula for the area would have to be rewritten.
What are the possible perimeters?A rectangle is a 2-dimensional quadrilateral with four right angles and two diagonals that bisect each other at right angles.
Area of a rectangle = length x width
Width = area / length
1200 / 40 = 30 feet
1200 / 50 = 24 feet
1200 / 60 = 20 feet
Perimeter of a rectangle = 2 x (length + width)
Perimeter when width is 30 feet : 2(40 + 30) = 140 feet
Perimeter when width is 24 feet : 2(24 + 50) = 148 feet
Perimeter when width is 20 feet : 2 (20 + 60) = 160 feet
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The sphere has a diameter of 10 in. What is the volume of the sphere?
Answer: 523.8 cubic inches
Step-by-step explanation:
Volume of the sphere, V = (4/3) * π * r^3
where r is the radius of the sphere.
Given, the diameter of the sphere (d) = 10 inches
Therefore, the radius of the sphere, r = d/2 =10/2 = 5 inches
Now, substituting the value of the radius to the volume formula,
V = (4/3) * π * (5^3)
= (4/3) * (22/7) * 125
≈ 523.8 cubic inches
A three-way intersection is sometimes called a
T-intersection
Y-intersection
Both a and b
Neither a nor b
Answer:
Both A and B
Step-by-step explanation:
Both a and b. A three-way intersection can be referred to as a T-intersection or a Y-intersection, depending on the shape of the intersection. In a T-intersection, one road intersects another road perpendicularly, forming a T-shape. In a Y-intersection, one road splits into two branches, forming a Y-shape.
Determine that table of values for these simultaneous equations.
5x+y=7
3x-y= 1
Answer:
What we suppose to be answering?
Step-by-step explanation:
Compute the slope of the line below. Enter your answer as a fraction or decimal. Use a slash mark (/) as the fraction bar if necessary.
The formula to find the slope of a line is:
\(\begin{gathered} m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}} \\ \text{ Where m is the slope and} \\ (x_1,y_1)\text{ and }(x_2,y_2)\text{ are two points through which the line passes} \end{gathered}\)So, in this case, you have
\(\begin{gathered} (x_1,y_1)=(-6,-4) \\ (x_2,y_2)=(-4,8) \\ m=\frac{8-(-4)}{-4-(-6)} \\ m=\frac{8+4}{-4+6} \\ m=\frac{12}{2} \\ m=6 \end{gathered}\)Therefore, the slope of this line is 6.
Not a timed or graded assignment. Need a quick answer tho. Thank you
ANSWER:
Difference of squares
\(8x-7\)STEP-BY-STEP EXPLANATION:
We have the following quotient:
\(\frac{64x^2-49}{8x+7}\)We factor, knowing that the numerator is a difference of squares, therefore:
\(\begin{gathered} a^2-b^2=(a+b)(a-b) \\ \text{ in this case} \\ a=8x \\ b=7 \\ 64x^2-49=(8x+7)(8x-7) \\ \text{ Replacing:} \\ \frac{(8x+7)(8x-7)}{8x+7}=8x-7 \end{gathered}\)Each day 1/2 of the money that is in a bank is removed .no money is added to the vault .which of the following models the situation
Find a formula for the inverse of the following function, if possible.
\(P(x) = 3\sqrt[3]{x} - 1\)
\(P^{-1}(x) = \\\\\)
or does not have an inverse function
to find the inverse of any expression, we start off by doing a quick variables switcheroo and then solve for "y", so let's do so
\(\stackrel{P(x)}{y}~~=~~3\sqrt[3]{x}-1\implies \stackrel{\textit{quick switcheroo}}{x~~ =~~3\sqrt[3]{y}-1}\implies x+1 = 3\sqrt[3]{y}\\\\\\\cfrac{x + 1}{3}=\sqrt[3]{y}\implies \left( \cfrac{x + 1}{3} \right)^3 =y\implies \cfrac{(x+1)^3}{3^3}=y\implies \cfrac{(x+1)^3}{27}=\stackrel{\stackrel{y}{\downarrow }}{P^{-1}(x)}\)
PROBLEM SOLVING WITH SURFACE AREA
A jewelry company is considering two different packages for their new bracelet. Both
options are constructed as a wooden box with a cardboard label that covers the lateral
surfaces. Use the information to answer the questions.
PLAN A
PLAN B
B
2.8 in
<
3 in
2 in
5 in
1 in
5 in
2 in
What is the total surface area of the package in PLAN A?
O 15 square inches
O 23 square inches
O 35 square inches
46 square inches
Answer:
The surface area is 46 square inches
Step-by-step explanation:
The question is roughly formatted.
From the complete question, we have the following parameters.\
Plan A:
Shape: Rectangular Prism
\(Height = 3in\)
\(Length = 1\ in\)
\(Width = 5in\)
Plan B:
Shape: Triangular Prism
\(Base: 2.8\ in\ by\ 2\ in\)
\(Height = 2\ in\)
\(Slant\ height =5\)
Required
Determine the total surface area of A
Plan A is a rectangular prism
The surface area is calculated as:
\(Area = 2 *[Length * Width + Height * Width + Length * Height]\)
So, we have:
\(Area = 2 *[1in * 5in + 3in * 5in+ 1in* 3in]\)
\(Area = 2 *[5in^2 + 15in^2+ 3in^2]\)
\(Area = 2 *[23in^2]\)
\(Area = 46in^2\)
The perimeter and area of a rectangle are 22 cm
and 30 cm² respectively. Find the length and
breadth of the rectangle
The perimeter and area of a rectangle are (5,6) and (6,5).
The perimeter method for a rectangle states that P = (L + W) × 2, where P represents perimeter, L represents length, and W represents width. when you are given the size of a square form, you may simply plug within the values of L and W into the formula that allows you to clear up for the fringe.
A perimeter is a closed course that encompasses, surrounds, or outlines either a two-dimensional shape or a one-dimensional period. The perimeter of a circle or an ellipse is known as its circumference. Calculating the perimeter has several practical programs.
The perimeter P of a rectangle is given by means of the method, P=2l+2w, in which l is the period and w is the width of the rectangle. The place A of a rectangle is given with the aid of the components, A=lw, wherein l is the length and w is the width.
The perimeter of the rectangle:
P=2l+2w=22
divide 2 into both sides
l+w=11 -------------> (1)
w=11-l
Area of the rectangle:
l*w=30
l(11-l)=30
11l-l^2-30=0
l^2-11l+30=0
By factor method,
(l-5)(l-6)=0
l=5,6.
Substitute this value in w,
l=5 implies w=6
l=6 implies w=5
There we have two solutions.
The length and breadth of the rectangle is
(5,6) and (6,5).
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lists the parts of the expression shown 8r + 5p + 7 terms variables, coefficient of p constant
Answer/Step-by-step explanation:
Starting with:
8r + 5p + 7
There are three terms. 8r is a term; 5p is a term; 7 is a term. See how the terms are separated by + or -
r and p are variables. Most often the variable is a letter, that way it can stand for an unknown value. It can vary.
5 is the coefficient of p. Its the number right next to the p. (They are multiplied together)
7 is the constant. Constant means unchanging, right? So 7 is a plain old number, it doesn't change like a variable can. A plain number with no variable is a constant.
The profit of a company , in dollars, is the difference between the company's revenue and cost. The cost C(x) and revenue, R(x) are functions for a particular company The x represents the number of items produced and sold to distributors
The maximum profit that the considered company can get is 142,400 bucks. That profit is earned when input x (the number of items produced) is 380
How to obtain the maximum value of a function?To find the maximum of a continuous and twice differentiable function f(x), we can firstly differentiate it with respect to x and equating it to 0 will give us critical points.
Putting those values of x in the second rate of function, if results in negative output, then at that point, there is maxima. If the output is positive then its minima and if its 0, then we will have to find the third derivative (if it exists) and so on.
The missing part of question is:
" \(C(x)=2000+70x\), \(R(x)=830x-x^2\)
A. Determine the maximum profit of the company.
B. Determine the number of items that must be produced and sold to obtain the maximum profit"
The profit is the difference between the revenue and the cost, so we get:
\(P(x) = R(x) - C(x) = 760x - x^2 - 2000\)
Finding its first and second rate with respect to x:
\(P'(x) = 760 -2x\\P''(x) = -2\)
Equating first rate to 0 to get the critical values:
\(P'(x) = 0 \implies 760 = 2x \implies x = 380\)
The second rate is < 0 for any x, x = 380 is minima, and x = 380 being only critical value, it is global maximum.
At x = 380, the profit evaluates to:
\(P(x) = 760x - x^2 - 2000\\P(380) = 760(380) - (380)^2 - 2000 = (380)^2 - 2000\\P(380) = 142400\)
Thus, the maximum profit that the considered company can get is 142,400 bucks. That profit is earned when input x (the number of items produced) is 380
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A clock that is set fifteen minutes fast is less precise than an identical clock
that keeps correct time.
TRUE OR FALSE
The statement that a clock that is set fifteen minutes fast is less precise than an identical clock that keeps correct time is false
How to determine the true statement?When a time is set away from the correct time, the time on the clock would be incorrect.
However, this has nothing to do with the precision of the clock.
This is so because precision deals with closeness of the time measurement to the original time
Since the time is ten minutes fast, it would not be less precise
Hence, the statement is false
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Jim sells candy bars to his family and friends as a fundraiser. The plain chocolate bars costs $1.50, and the king size chocolate bar costs $2.25. Jim sells a total of 55 candy bars, and earns a total $95.25. Write a system of equations and find out how many plain chocolate bars he sold, and how many king size bars he sold.
Answer:
38 plain chocolate bars and 17 king-size chocolate bars.
Step-by-step explanation:
Let's define the variables:
P = number of plain chocolate bars sold
K = number of king chocolate bars sold
We know that each plain one costs $1.50, and each king one costs $2.25, then the total revenue is:
P*$1.50 + K*$2.25
Now we know that Jim sells a total of 55 candy bars, then:
P + K = 55
And we know that the total revenue is $95.25, then:
P*$1.50 + K*$2.25 = $95.25
Then we have the system of equations:
P + K = 55
P*$1.50 + K*$2.25 = $95.25
To solve this we need to isolate one of the variables in one of the equations, I will isolate P in the first equation to get:
P = 55 - K
Now we can replace is on the second one to get:
(55 - K)*$1.50 + K*$2.25 = $95.25
Now we can solve this for K
$82.50 - K*$1.50 + K*$2.25 = $95.25
K*($2.25 - $1.50) = $95.25 - $82.50 = $12.75
K*$0.75 = $12.75
K = $12.75/$0.75 = 17
This means that Jim sold 17 king-size chocolate bars.
Now we can replace this in the equation:
P + K = 55
P + 17 = 55
P = 55 - 17 =38
P = 38
Jim sold 38 plain chocolate bars.
What is the equation of the line that passes through (5, -2) and (-3, 4)?
Answer:
y = (-3/4)x + 7/4
Step-by-step explanation:
Step 1: Define general form of equation of line
An equation of a straight line on two-dimensional plane could be represented in form of: y = Mx + b, with M is slope and b is y-intercept
Step 2: Set up the system to solve for parameters of equation of line
(solve for M and b)
That equation passes 2 points, which are represented in form of (x, y), (5, -2) and (-3, 4).
Substitute these values of x and y into the original equation in step 1:
-2 = 5M + b
4 = -3M + b
Step 3: Solve the system of equations in step 2 for M and b
Subtract 1st equation from 2nd equation:
6 = -8M
=> M = -6/8 = -3/4
Substitute M back into 1st equation:
=> -2 = 5*(-3/4) + b
=> b = -2 + 15/4
=> b = 7/4
=> The equation of the line that passes through (5, -2) and (-3, 4):
y = (-3/4)x + 7/4
Hope this helps!
:)
Answer:
Y= -4/3(x-7/2)
Step-by-step explanation:
So first calculate the difference between them,
changes by 8 x units, and -6 y units.
Then substitute them into y/x to find gradient
-6/8 = -4/3
so now we have a part of the equation:
Y= -4/3(x-a)
substitute Y= -2 and x=5 (from (5,-2))
-2= -4/3(5-a)
-2= -20/3+4a/3
Multiply by 3 on both sides
-6= -20+4a
add 20 on both sides
14=4a
a=7/2
use this as the value of a
Y= -4/3(x-7/2)
If XY,=30 XZ=24, and JQ=8, find the radius of the circumscribed circle of XYZ Please Help Brainliest if correct! Thanks!
XY = 30, XZ = 24, JQ = 8
From the given diagram we can see that;
XJ = JY
So,
XJ = JY = XY/2
XJ = JY = 30/2 = 15
Here, Point Q is the centroid of the ∆XYZ, which means that XQ = QZ = QY will be the radius of the circumscribed circle.
Since,
We know JQ and XJ, let us consider triangle XJQ.
By Using Pythagoras Theorem;
(XQ)² = (XJ)² + (JQ)²
(XQ)² = (15)² + (8)²
(XQ)² = 225 + 64
(XQ)² = 289 +
XQ = √289
XQ = 17
Thus, The radius of the circumscribed circle of ∆XYZ is 17
-TheUnknownScientist 72
If two cubes have edges of 2 ft and 4 ft, what is the ratio of their surface areas?
Answer:
1/4
Step-by-step explanation:
Barbara sets off a water-powered rocket. The height of the
rocket at time t seconds is given by h(t) = − 16t² +96t.
Use the quadratic formula to estimate when into the trip
the rocket is 64 feet high.
The rocket is 64 feet high at 3±√5 seconds.
It is given that Barbara sets off a water-powered rocket and the height of the rocket at time "t" seconds is given by h(t) = −16t² + 96t.We need to find the time when the rocket reaches a height of 64 feet.64 = −16t² + 96t16t² − 96t + 64 = 0t² − 6t + 4 = 0A quadratic equation is a second-degree algebraic equation in a variable.Upon solving the above quadratic equation, we get two real values of time.t = 3 ± √5The rocket will reach a height of 64 feet at 3±√5 seconds.To learn more about quadratic equations, visit :
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divide the polynomials x^2-10,000/x-100
Answer:
x+100
Step-by-step explanation:
x^2-10,000/x-100
x^2-10000 is a difference in squares and can be factored.
x^2-10000 = (x+100)(×-100).
(x+100)(x-100)/(x-100)
(x-100) cancel each other.
x+100 remains.
help with this equation
The equation of the line with coordinates (-7,3), (8,3) is y-3=0 as the slope of line is 0 because x-ordinate is same in both the points.
What is equation?A straight line's general equation is y = mx + c, where m denotes the gradient and y = c denotes the point at which the line crosses the y-axis. On the y-axis, this value c is referred to as the intercept. The point-slope form, standard form, and slope-intercept form are the three main types of linear equations.
The two point form of equation,
y-y1=m(x-x1)
m=(y2-y1)/(x2-x1)
m=(3-3)/(8--7)
m=0
y-3=0(x+7)
y-3=0
Because the x-ordinate is the same at both points, the equation for the line with coordinates (-7,3) and (8,3) is y-3=0.
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Find the surface area of the composite figure.
20 in.
11 in.
5 in.
I
I
19 in
12 in.
12 in.
SA
=
11 in.
5 in.
20 in.
[?] in.2
The surface area of the composite figure is 2005 in².
To find the surface area of the composite figure, we need to calculate the sum of the areas of its individual components.
Let's break down the figure into its different parts and calculate the surface area step by step:
Rectangular Prism: The rectangular prism has dimensions of 20 in, 11 in, and 5 in. The surface area of a rectangular prism can be found by adding the areas of its six faces. The total surface area of the rectangular prism is given by:
Surface Area of Rectangular Prism = 2lw + 2lh + 2wh
Plugging in the values, we have:
Surface Area of Rectangular Prism = 2(20)(11) + 2(20)(5) + 2(11)(5) = 440 + 200 + 110 = 750 in²
Rectangular Prism: Another rectangular prism has dimensions of 19 in, 12 in, and 12 in. Following the same process as above, we can calculate the surface area of this rectangular prism:
Surface Area of Rectangular Prism = 2lw + 2lh + 2wh
Plugging in the values, we have:
Surface Area of Rectangular Prism = 2(19)(12) + 2(19)(12) + 2(12)(12) = 456 + 456 + 288 = 1200 in²
Base: The base is a rectangle with dimensions 11 in and 5 in. The surface area of a rectangle is given by the formula:
Surface Area of Rectangle = lw
Plugging in the values, we have:
Surface Area of Rectangle = (11)(5) = 55 in²
Finally, to find the total surface area of the composite figure, we add the surface areas of the individual components:
Total Surface Area = Surface Area of Rectangular Prism + Surface Area of Rectangular Prism + Surface Area of Rectangle
Total Surface Area = 750 in² + 1200 in² + 55 in² = 2005 in²
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Write an equation to represent the following statement. j is 14 less than22.
Answer:
j - 14 = 22
Step-by-step explanation:
IS THIS RIGHT? (28 points easy!!)
Step-by-step explanation:
yes, the step is correct.
a² = cx | multiply by c
ca² = c²x
I am just not sure how that simplified the equation.
what do you want to achieve ? what's the goal here ?
to solve the equation for x it would be to divide both sides by c, which gives
a²/c = x
what is the volume of this container 1ft 1ft 2ft
Answer:
Remember length times width times height when finding volume.
In non-terms of pi, the answer would be \(2\) \(ft^2\)
Answer:
Volume is 2ft
Step-by-step explanation:
Multiply the length x width once you find the answer for lengthxwidth.
Multiply the answer you got by height
A ladder of length (2x+6) feet is positioned x feet from a wall. If the ladder reaches a height of (2x+4) feet along the wall. Find the longest leg.
A. 10ft
B. 24ft
C. 26ft
D. 13cm
Using the Pythagoras theorem, the longest leg has the length of 24 feet.
Given that,
A ladder of length (2x+6) feet is positioned x feet from a wall.
Height of the ladder = (2x + 6) feet
Distance of ladder from the wall = x feet
Height of the wall that the ladder is placed = (2x + 4) feet
These three lengths form s right triangle where (2x + 6) feet is the hypotenuse.
Longest leg is (2x + 4) feet
Using the Pythagoras theorem,
(2x + 6)² = (2x + 4)² + x²
4x² + 24x + 36 = 4x² + 16x + 16 + x²
4x² + 24x + 36 = 5x² + 16x + 16
x² - 8x - 20 = 0
(x - 10) (x + 2) = 0
x = 10 or x = -2
x = 2 is not possible.
So x = 10
Longest leg = 2x + 4 = 20 + 4 = 24 feet
Hence the length of the longest leg is 24 feet.
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The total weight limit for a truck is 100,000 lb. The truck weighs 36,000 lb empty. What is the most that the truck's load can weigh?
Answer: 64,000} lbs
Step-by-step explanation: hope it helps ! <3!
write and solve an inequality to find the possible values of x
The inequality that represents the value of x is (b) x > 80
Writing and solving the inequality for xfrom the question, we have the following parameters that can be used in our computation:
The figure
The general rule is that
The larger the side length, the larger the angle opposite it
using the above as a guide, we have the following:
1/8x > 10
So, we have
x > 80
Hence, the inequality is x > 80
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