Solution:
The volume of a cylinder is expressed as
[tex]\begin{gathered} V=\pi\times r^2\times h \\ where \\ V\Rightarrow volume\text{ of the cylinder} \\ r\Rightarrow radius\text{ of its circular ends} \\ h\Rightarrow height\text{ of the cylinder} \end{gathered}[/tex]Given the cylinder below:
we have
[tex]\begin{gathered} height\text{ of the cylinder = 4 cm} \\ diameter\text{ of the circular end = 2 cm} \end{gathered}[/tex]but
[tex]\begin{gathered} radius=\frac{diameter}{2} \\ \Rightarrow r=\frac{d}{2}=\frac{2cm}{2}=1\text{ cm} \end{gathered}[/tex]Thus, the volume of the cylinder is evaluated by substituting the values of 4 cm and 1 cm for h and r respectively into the volume formula.
[tex]\begin{gathered} V=\pi\times1cm\times1cm\times4cm \\ =12.56637 \\ \approx12.6\text{ cubic centimeters} \end{gathered}[/tex]Hence, the volume of the cylinder, to the nearest 1 decimal place is
[tex]12.6\text{ cubic centimeters}[/tex]Brightness up inequality which can be used to determine o, The number of outfit Joseph can’t purchase well staying within his budget.
let o be the number of outfits, then
o*53.96 shoud be less than or equal to 620 - all what he bought, so:
Total money: $620
Spent money: $620 - $440.12 - $19.26 - 25.72 = $134.9
The inequality will be:
53.96o ≤ 134.9
o ≤ 2.5
Which describes the effect of the transformations on the graph of f(x) = x? when changed to f(x) = - = (x - 2) = 3?A)B)reflected over x-axis, stretched vertically, shifted left 2 units, and shifteddown 3 unitsreflected over x-axis, compressed vertically, shifted right 2 units, and shiftedup 3 unitsreflected over y-axis, stretched vertically, shifted left 2 units, and shifteddown 3 unitsreflected over y-axis, compressed vertically, shifted right 2 units, and shiftedup 3 units09D)
Let me start by telling you that there is a typo in the actual question (given the answers they provide for selection)
I am going to tell you the transformations that have been applied to change the function:
[tex]f(x)=x^2[/tex]into the function:
[tex]f(x)=\frac{1}{8}(x-2)^2+3[/tex]Then, these transformations consist on:
a reflection around the x axis (due to the negative sign in front),
a horizontal shift in TWO units to the right (given by the subtraction of 2 inside the parenthesis,
then a vertical compression in 1/8 (due to the factor 1/8 outside the parenthesis
and then a vertical shift of 3 units UP due to the +3 added at the end
Then, please select answer B in the list provided
Stacy loaned Robert $21,370 at an interest rate of 10 % for 171 days. How much will Robert pay Stacy at the end of 171 days? Roundyour answer to the nearest cent. Note: Assume 365 days in a year and 30 days in a month.
The simple interest formula is :
[tex]A=P(1+rt)[/tex]where A is the future amount
P is the principal amount
r is the rate of interest
and
t is the time in years
From the problem, we have :
P = $21,370
r = 10% or 0.10
t = 171 days or 171/365 year
Using the formula above :
[tex]\begin{gathered} A=21370(1+0.10\times\frac{171}{365}) \\ A=22371.17 \end{gathered}[/tex]The answer is $22,371.17
You need 3 sticks of butter for every 24 cookies you bake. How many cookies can I make with 5 sticks?
ANSWER
[tex]40\text{ cookies}[/tex]EXPLANATION
We want to find the number of cookies that can be made with 5 sticks.
To solve this, we have to apply proportions. Let the number of cookies that can be made be x.
We have that:
[tex]\begin{gathered} 3s=24c \\ 5s=x \end{gathered}[/tex]Now, cross-multiply:
[tex]\begin{gathered} 3\cdot x=24\cdot5 \\ \Rightarrow x=\frac{24\cdot5}{3} \\ x=40\text{ cookies} \end{gathered}[/tex]That is the number of cookies that can be made.
SOLVE PLEASE -2x^2+18x+____
In this case, we'll have to carry out several steps to find the solution.
Step 01:
Data
- 2x² + 18x + _________
Step 02:
(a + b) = a² + 2ab + b²
a² = -2x²
[tex]a\text{ = }\sqrt[]{-2\cdot x^{2}}\text{ = x }\sqrt[]{-2}[/tex][tex]a\text{ = }\sqrt[]{2}i[/tex]2ab = 18x
[tex]2(x\sqrt[\text{ }]{-2)}\cdot\text{ b = 18 x}[/tex][tex]b\text{ = }\frac{18x}{2x\sqrt[]{-2}}=\frac{9}{\sqrt[]{-2}}=\frac{9}{\sqrt[]{2\text{ }}i}[/tex]Two ways to express the solution:
[tex]\begin{gathered} -2x^{2\text{ }}+\text{ 18x + 9/}\sqrt[]{-2} \\ -2x^2+18x\text{ + 9 / }\sqrt[]{2}i \end{gathered}[/tex]2 radical 6 minus -2 radical 24 adding and subtracting radicals
Substraction:
1. Find prime factors of 24
[tex]\sqrt[]{24}=\sqrt[]{2^2\cdot6}[/tex]2. As 2 squared has a exact square root extract it from the radical:
[tex]\sqrt[]{24}=2\sqrt[]{6}[/tex]Then, you have the next expression:
[tex]\begin{gathered} 2\sqrt[]{6}-2\sqrt[]{24}=2\sqrt[]{6}-2(2\sqrt[]{6}) \\ \\ =2\sqrt[]{6}-4\sqrt[]{6} \end{gathered}[/tex]Substract similar terms (taking square root of 6 as a common factor):
[tex]\begin{gathered} =(2-4)\cdot\sqrt[]{6} \\ \\ =-2\sqrt[]{6} \end{gathered}[/tex]queremos hacer una tetra brik de base cuadrada de 8cm de lado y con capacidad de 2l¿cuanto cartón necesitaremos ?
transformamos las unidades de litros a centimetros cubicos, esto es:
1 L = 1000 cm3
2L = 2000 cm3
hallamos el area de la base
[tex]A=L^2=8^2=64cm^2[/tex][tex]\begin{gathered} V=A\times h \\ 2000=64\times h \\ \frac{2000}{64}=\frac{64h}{64} \\ h=31.25 \end{gathered}[/tex]hallamos el area lateral
[tex]Alateral=P\times h=(4\times8)\times31.25=32\times31.25=1000cm^2[/tex]luego el area total
[tex]\text{Atotal}=2Abase+Alateral=2(64)+1000=128+1000=1128\operatorname{cm}[/tex]respuesta: se necesitan 1128 cm2 de carton
Lines m and n are parallel. Which are corresponding angles?Angles 1 and 3Angles 1 and 5Angles 1 and 4Angles 1 and 2
EXPLANATION
By the corresponding angles theorem, we can affirm that the following angles are corresponding ones:
angles 1 and 5 are corresponding because they occupy the same relative position.
How many people were using program 2 but not program 3?
Let Program 1, Program 2, and Program 3 be represented by P1, P2, and P3.
Given:
n(P1 n P2) = 6
n(P2 n P3) =8
n(P1 n P3) = 5
n(P1 n P2 n P3) = 2
n(P1 U P2' U P3') =18
n(P2) = 22
n(P3 U P1 U P2') = 16
n(P1 U P2 U P3)' = 17
Representing the information on a Venn diagram:
The number of people that were using Program 2 but not Program 3:
[tex]\begin{gathered} n(P_2UP_3^{\prime})=n(P_2)-n(P_2nP_3)\text{ } \\ =\text{ 22 - 8} \\ =\text{ 16} \end{gathered}[/tex]Number of people surveyed
The number of people surveyed is the sum of the individual subsets:
[tex]\begin{gathered} =\text{ 18 + 10 + 13 + 4 + 6 + 3 + }2\text{ + 17} \\ =\text{ 73} \end{gathered}[/tex]Solve the following system of equations for all three variables.-8x – 3y + 5z = -2X-2y – 5z = -94x + 7y + 5z = 4
In order to solve this system of equations, first let's add the second equation to the first and third ones:
[tex]\begin{gathered} \begin{cases}-8x-3y+5z+(x-2y-5z)=-2+(-9) \\ 4x+7y+5z+(x-2y-5z)=4+(-9)\end{cases} \\ \begin{cases}-7x-5y=-11 \\ 5x+5y=-5\end{cases} \end{gathered}[/tex]Now, adding the two resulting equations, we have:
[tex]\begin{gathered} -7x-5y+(5x+5y)=-11+(-5) \\ -2x=-16 \\ x=8 \\ \\ 5x+5y=-5 \\ 40+5y=-5 \\ 5y=-45 \\ y=-9 \\ \\ x-2y-5z=-9 \\ 8+18-5z=-9 \\ -5z=-35 \\ z=7 \end{gathered}[/tex]So the solution for this system is x = 8, y = -9 and z = 7.
What are all the ordered pairs that are solutions to the inequality 2x-3y>=12
To answer this question, we need to solve this inequality for y as follows:
[tex]2x-3y\ge12[/tex]Then, we have:
[tex]-3y\ge12-2x\Rightarrow\frac{-3y}{-3}\leq\frac{12}{-3}-\frac{2x}{-3}\Rightarrow y\leq-4+\frac{2x}{3}[/tex]As we can see the direction of the inequality changed because we multiplied it by a negative number.
Then, if we can see the inequality, we find that the values that make this inequality true
are infinite values (the values of y are in function of the values of x).
Then, since we have the values given in the options, we need to check which of these values make the inequality true or we can graph a line for this inequality.
We have that the line is given by:
y = 2x/3 - 4
The x-intercept for this line is:
[tex]undefined[/tex]Based only on the information given in the diagram, which congruencetheorems or postulates could be given as reasons why ACDE=A OPQ?Check all that apply.СA. ASAB. HAC. SASD. LLE. HLF. AAS
The postulates of congruence for right triangles are
• Hypotenuse-Leg Theorem.
,• Leg-Leg Theorem.
,• Leg-Acute Angle Theorem.
,• Hypotenuse-Acute Angle Theorem.
In this case, we know that sides CE and OQ are congruent. (hypotenuses are congruent)
Angle C is congruent to angle O.
Angle E is congruent to angle Q.
To demonstrate the congruence between triangles we can use Hypotenuse-Acute Angle Theorem since they are congruent between triangles.
We can also use Hypotenuse-Leg Theorem because we have corresponding legs and hypotenuses congruent.
The hypotenuse-acute angle theorem states that two right triangles are congruent if they have congruent hypotenuse and one corresponding pair of acute angles congruent.
The hypotenuse-leg theorem states that two right triangles are congruent if they have congruent hypotenuse and one corresponding pair of congruent legs.
Therefore, the right choices are B and E.A girl cycled a total of 15 kilometers by making 5 trips to work. How many trips will she have to make to cover a total of 24 kilometers? Solve using unit rates.
We need to find how many trips she will have to make to cover a total of 24 kilometers.
We know that she covered 15 kilometers by making 5 trips. Thus, the number of kilometers made on each trip is:
[tex]\frac{15\text{ kilometers}}{5\text{ trips}}=\frac{15\div5\text{ kilometers}}{5\div5\text{ trip}}=\frac{3\text{ kilometers}}{1\text{ trip}}[/tex]Then, she made 3 kilometers on 1 trip (unit rate).
Now, to cover 24 kilometers, she needs to make 8 trips, because:
[tex]\begin{gathered} 3\text{ kilometers }\times8=24\text{ kilometers} \\ \\ 1\text{ trip }\times8=8\text{ trips} \end{gathered}[/tex]Thus:
[tex]\frac{3\text{ kilometers}}{1\text{ trip}}=\frac{3\text{ kilometers}}{1\text{ trip}}\times\frac{8}{8}=\frac{3\times8\text{ kilometers}}{1\times8\text{ trips}}=\frac{24\text{ kilometers}}{8\text{ trips}}[/tex]Answer: She will have to make 8 trips.
This is so hard I don’t understand this pls help
From the given question
There are given that the matrix.
Now,
To find the inverse of any matrix, first find their determinant.
Then,
According to the properties of the matrix:
If the determinant of any matrix is zero, then their inverse has undefined.
So,
From the determinant of the given matrix:
[tex]\begin{gathered} \begin{bmatrix}{4} & {8} & {} \\ {7} & {14} & \\ {} & {} & {}\end{bmatrix}=(14\times4)-(8\times7) \\ =56-56 \\ =0 \end{gathered}[/tex]The determinant of the given matrix is zero
So, their inverse has not been defined.
Hence, the correct option is A.
A circle has a circumference of 25 feet, what is the diameter? Your answer
Given :
The circumference of the circle = 25 feet
π = 3.14
The circumference of the circle =
[tex]2\pi\cdot r=\pi\cdot d[/tex]Where r is the radius and d is the diameter
so,
[tex]\begin{gathered} \pi\cdot d=25 \\ \\ d=\frac{25}{\pi}=\frac{25}{3.14}\approx7.96 \end{gathered}[/tex]if we rounded to the nearest feet, the diameter = 8 feet
A window had a length of 2ft & width of 3ft. What is the area of the window?
The formula used to calculate the area of the window will be
[tex]\begin{gathered} \text{Area}=l\times w \\ \text{where,} \\ l=2ft \\ w=3ft \end{gathered}[/tex]By substituting the values, we will have
[tex]\begin{gathered} \text{Area}=l\times w \\ \text{Area}=2ft\times3ft \\ \text{Area}=6ft^2 \end{gathered}[/tex]Hence,
The final answer = 6ft²
What is the difference between area and perimeter of a two-dimension figure? What is the difference in the area formulas for a parallelogram and triangle
The perimeter is a measure of the distance around the shape. This means that to find the perimeter we usually are going to add the lenghts of the sides of the figure (the circle is an exception to that rule since this is a curve figure).
The are is a measure of the space inside the figure. This means that to find the area we usually are going to multiply the lenghts of the sides of the figure to get the area.
Now the area of a triangle is given as:
[tex]A=\frac{1}{2}bh[/tex]whereas the area of a paralelogram is given by:
[tex]A=bh[/tex]From this we notice that the area of the triangle is half the area of a parallelogram.
At Tim Hortons, mike bought three coffees and 1 doughnut for $19. Bob bought one coffee and one doughnut for $9. Using the price of one coffee=c and the price of one doughnut=d . Answer the following questions 14,15,16 and 17
So first of all we need to write an algebraic equation for Mike. We know that he bought 3 coffees and 1 doughnut. Then the total price of these things is:
[tex]3c+1d=3c+d[/tex]And we know that he had to pay $19 so this expression is equal to 19:
[tex]3c+d=19[/tex]Then the answer to question 14 is the second option.
Bob bought one coffee and one doughnut so the total cost of his purchase is:
[tex]c+d[/tex]We know that this cost is equal to $9 so we get:
[tex]c+d=9[/tex]And the answer to question 15 is the third option.
In question2 16 and 17 we need to find c and d. For this purpose we need to use the algebraic equations for Mike and Bob:
[tex]\begin{gathered} 3c+d=19 \\ c+d=9 \end{gathered}[/tex]Let's take the second equation and substract c from both sides:
[tex]\begin{gathered} c+d-c=9-c \\ d=9-c \end{gathered}[/tex]Now we substitute this expression in place of d in the first equation:
[tex]\begin{gathered} 3c+d=3c+(9-c)=19 \\ 3c+9-c=19 \\ 2c+9=19 \end{gathered}[/tex]Now we substract 9 from both sides:
[tex]\begin{gathered} 2c+9-9=19-9 \\ 2c=10 \end{gathered}[/tex]And we divide both sides by 2:
[tex]\begin{gathered} \frac{2c}{2}=\frac{10}{2} \\ c=5 \end{gathered}[/tex]Then the price of one coffee is $5 so the answer to question 16 is the third option.
Now we are going to take the equation for Bob and take c=5:
[tex]c+d=5+d=9[/tex]If we substract 5 from both sides we get:
[tex]\begin{gathered} 5+d-5=9-5 \\ d=4 \end{gathered}[/tex]Then the price of one doughnut is $4 and the answer to question 17 is the second option.
PLEASE HELP 15 POINTS!! I'M GIVING BRAINLIEST
The value of sinα in the right angle triangle is [tex]\frac{16\sqrt{281} }{78961}[/tex]
What is a right-angle triangle?A right-angled triangle is a triangle, that has one of its interior angles equal to 90 degrees or any one angle is a right angle. Therefore, this triangle is also called the right triangle or 90-degree triangle. The right triangle plays an important role in trigonometry.
sin α = opposite/hypotenuse
opposite = 16, hypotenuse [tex]\sqrt{281}[/tex]
sin α = [tex]\frac{16}{\sqrt{281} }[/tex]
By rationalizing, the denominator which means multiply the fraction by [tex]\frac{\sqrt{281} }{\sqrt{281} }[/tex]
[tex]\frac{16}{\sqrt{281} }[/tex] x [tex]\frac{\sqrt{281} }{\sqrt{281} }[/tex] = [tex]\frac{16\sqrt{281} }{78961}[/tex]
sin [tex]\alpha[/tex] = [tex]\frac{16\sqrt{281} }{78961}[/tex]
In conclusion, the value of sin[tex]\alpha[/tex] = [tex]\frac{16\sqrt{281} }{78961}[/tex]
Learn more about trigonometric ratios: https://brainly.com/question/1165363
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1.1.22Question HelpAngie and Kenny play online video games. Angie buys 1 software package and 3 months of game play, Kenny buys 2 software packages and 2 months of gameplay. Each software package costs $25. If their total cost is $125, what is the cost of one month of game play?
We have a system of linear equations:
Let S be the price of software package and M be the price of the month of game play.
Angie buys 1 software package and 3 months of gameplay, while Kenny buys 2 software packages and 2 months of game play. The total cost for them is $125.
We can write this as:
[tex]\begin{gathered} (1S+3M)+(2S+2M)=125 \\ 3S+5M=125 \end{gathered}[/tex]We also know that each software package cost $25. This can be written as:
[tex]S=25[/tex]We can replace this last equation in the first one, and calculate M:
[tex]\begin{gathered} 3S+5M=125 \\ 3(25)+5M=125 \\ 75+5M=125 \\ 5M=125-75 \\ 5M=50 \\ M=\frac{50}{5} \\ M=10 \end{gathered}[/tex]The cost of one month of game play is $10.
I don’t know which one it’s going to be maybe A?
SOLUTION
We want to find which region has a population less than 60 animals in the diagram below
Population desity is calculated as
[tex]\text{Population density = }\frac{\text{ number of animals }}{\text{area of region }}[/tex]So let's get the areas of triangles A, B, C, and D we have
[tex]\begin{gathered} \text{area of triangle =}\frac{1}{2}\times base\times\text{height} \\ A=\frac{1}{2}\times40\times35=700m^2 \\ B=\frac{1}{2}\times50\times38=950m^2 \\ C=\frac{1}{2}\times49\times42=1,029m^2 \\ D=\frac{1}{2}\times32\times51=816m^2 \end{gathered}[/tex]Population density for each becomes
[tex]\begin{gathered} \text{Population density = }\frac{\text{ number of animals }}{\text{area of region }} \\ \text{For A = }\frac{\text{ 42500 }}{\text{700 }}=60.714\cong61\text{ animals } \\ \text{For B = }\frac{60800}{950}=64\text{ animals } \\ \text{For C = }\frac{57300}{1029}=55.685\cong56\text{ animals } \\ \text{For D = }\frac{49200}{816}=60.29\cong60\text{ animals } \end{gathered}[/tex]Region C has a population density of 56 animals per square mile, which is less than 60.
Hence the answer is region C, option C
Amount of $28,000 is borrowed for nine years at 3.25 interest, compounded annually. If the loan is paid in full at the end of that period, how much must be paid back?Round your answer to the nearest dollar$=
Given:
Principal amount = $28,000
Time period = 9 years
Interest rate = 3.25
Required:
Find the total amount at the end of the period.
Explanation:
The amount formula when the interest is compounded annually is given by the formula:
[tex]A=P(1+r)^{nt}[/tex]Where P =principal amount
r = rate of interest
T = time period
n = Number of time
Substitute the given values in the amount formula.
[tex]\begin{gathered} A=28,000(1+0.0325)^9 \\ A=28,000(1.33355) \\ A=37,339.51 \\ A=37,340 \end{gathered}[/tex]Final Answer:
Thus the amount after 9 years is $37,340.
What is the approximate diameter of the largest Circle she can make
We have that the circumference of a circle can be represented with the following equation:
[tex]C=\pi d[/tex]where d represents the diameter of the circle.
In this case, we have a circle of circumference C = 30 ft made with the lights, then, using the equation and solving for d, assuming that pi equals 3.14, we get:
[tex]\begin{gathered} 30=(3.14)d \\ \Rightarrow d=\frac{30}{3.14}=9.55\approx10ft \end{gathered}[/tex]therefore, the approximate diameter of the largest circle is 10 ft
Hi, can you help me to solve this exercise please!
Step 1:
Write the equation
[tex]\sin (\theta\text{) = }\frac{5}{13}[/tex]Step 2:
Write the trigonometric inverse identity
[tex]\csc (\theta)\text{ = }\frac{1}{\sin \theta}[/tex]Step 3:
Substitute in the equation
[tex]\begin{gathered} \csc (\theta)\text{ = }\frac{1}{\frac{5}{13}} \\ \csc (\theta)\text{ = }\frac{13}{5} \end{gathered}[/tex]Final answer
[tex]csc(\theta)\text{ = }\frac{13}{5}[/tex]Which of the following describes the transformation of the graph y = x 2 in graphing y = -x 2 - 5?reflect over the x-axis and shift down 5reflect over the y-axis and shift down 5reflect over the x-axis and shift left 5
The parent function of the graph is,
[tex]y=x^2[/tex]The transformed image of the graph is,
[tex]y_1=-x^2-5[/tex]Let us sketch out the graph of both the parent function and the transformed function.
From the image above, the parent function, y=x² was first reflected over the y-axis. Therefore, the transformation resulted into y= -x² .
After that, it was now shifted down by 5 units, which now resulted into
[tex]y=-x^2-5[/tex]Hence, the correct answer is B(Second option), which is the parent function was reflected over the y-axis and shifted downward by 5 units.
Hello, I need help with this precalculus homework question, please?HW Q8
Solution
Given the logarithmic statement below
[tex]\ln7=x[/tex]To change the statement to an exponential statement, we apply an exponent to both sides
[tex]e^{\ln7}=e^x[/tex]Simplifying the expression above gives
[tex]\begin{gathered} 7=e^x \\ e^x=7 \end{gathered}[/tex]Hence, the exponential statement is
[tex]e^x=7[/tex]Find the area of the circle with the diameter 8yd use the 3.14 for pie don’t round
Given:
a.) A circle with a diameter of 8 yards.
For us to get the area of the circle, we will be using the following formula:
[tex]\text{ Area = }\frac{\pi D^2}{4}[/tex]Where,
D = the diameter of the circle = 8 yards
We get,
[tex]\text{ Area = }\frac{\pi D^2}{4}[/tex][tex]\text{ = }\frac{(3.14)(8)^2}{4}[/tex][tex]\text{ = }\frac{(3.14)(64)}{4}[/tex][tex]\text{ = (3.14)(16)}[/tex][tex]\text{ Area = }50.24yd^2[/tex]Answer: 50.24 square yards
1) To win the small county lottery, one must correctly select 3 numbers from 30 numbers. The order in which the selection is made does not matter. How many different selections are possible?
This problem involves combination with taken n Items taken r at a time
The formula for this combination is :
[tex]nC_r=\frac{n!}{(n-r)!r!}[/tex]Where n is the total number of items
and r is the objects taken at a time
The factorial, n! denotes n x (n-1) x (n-2) x (n-3) x ... x (1)
For example :
2! = 2 x 1 = 2
3! = 3 x 2 x 1 = 6
4! = 4 x 3 x 2 x 1 = 24
Now from the given problem :
we have n = 30 numbers
r = selection of 3
Then the formula will be :
[tex]30C_3=\frac{30!}{(30-3)!\times3!}[/tex]Simplifying :
27 up to 1 will be cancelled from numerator and the denominator..
Evaluating the expression will be :
24360/6 = 4060
The answer is 4060
Graph the following inequalitiesy ≥ -x/4 + 5
Solution
The graph of the inequality is shown below
Solve the following equation for x. (x - 5) -6 2 OX= -2 O x=2 x=-17 X=-7
You have teh following equation:
(x - 5)/2 = - 6
In order to find the solution to the previous equation, proceed as follow:
(x - 5)/2 = -6 multiply by 2 both sides
x - 5 = -6(2)
x - 5 = -12 add 5 both sides
x = -12 + 5 simlify
x = -7
Hence, the solution to the gicen equation is x = -7