Answer:
\(6\)
Step-by-step explanation:
\(\mathrm{Solution: }\\\\\mathrm{sin30^o=\frac{p}{h}=\frac{a}{12}}\\\\\mathrm{or,\ \frac{1}{2}=\frac{a}{12}}\\\\\mathrm{or,\ 2a=12}\\\\\mathrm{\therefore a=6}\)
Si una mosca real tiene una longitud de 9mm y su maqueta mide 18cm.cual a q escala se realizo la maqueta
The scale factor used is:
1 centimeter equals half millimiter.
How to find the scale factor?The scale factor tells us how many units in the sculpture represent a real unit.
We know that:
Real length = 9mm
Length in the sculpture = 18cm
Then we have the relation between the lengths:
18cm = 9mm
Dividing both sides by 18 we will get:
1cm = 9mm/18
1cm = 0.5mm
So the scale is 1 centimeter equals half millimiter.
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how to determine standard deviation of discrete random variables when given standard deviation and mena
To calculate the standard deviation of discrete random variables when given standard deviation and mean, we can follow the mentioned procedure.
Determine the mean, or expected value, by adding the products of each result and its probability:
μ = n ∑ i = 1
x 1p1 + x2p2 + xnpn = x I p I
Step 2: Using the formula
σ^2=n∑i=1,
calculate the variance for the random variable.
p I ( x I − μ ) 2 .
Step 3: Take the square root of the variance to calculate the standard deviation.
A discrete random variable is one that can have just a finite number of or countably infinitely many different values. However, this does not mean that the sample space can only have a finite number of outcomes.
A random variable is one that can have several values, each of which has a certain probability of occuring. The random variable is discrete when there are a finite (or countable) number of such values.
Random variables are distinct from "regular" variables, which have a fixed (but frequently unknown) value.
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In ΔABC, what is the value of cos B?
In right-angled triangle (ΔABC), the value of cos(B) is equal to 12/13.
What is a right angle?A right angle can be defined as a type of angle that is formed by the intersection of two (2) straight lines at 90 degrees. This ultimately implies that, a right angle has a measure of 90 degrees.
How to calculate the magnitude of cos θ?In order to determine the magnitude of cos θ, we would apply the law of cosine because the given side lengths represent the adjacent side and hypotenuse of a right-angled triangle.
cos(θ) = Adj/Hyp
Where:
Adj represents the adjacent side of a right-angled triangle.Hyp represents the hypotenuse of a right-angled triangle.θ represents the angle.Substituting the parameters into the formula, we have;
cos(B) = 12/13
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Solve the following inequality.
(x-2)(x– 7)<0
What is -27/8×7/10
Because odbeoqhqbebebsns
The answer to this problem is going to be -2.3625
!!!!!!!!!!!!!!!!!!!!
Answer:
ten to the third power
Step-by-step explanation:
Answer:
Ten cubed; Ten to the power of three, Ten to the third power
Step-by-step explanation:
) Una compañía invierte $15,000 al 8% y $22,000 al 9%. ¿A qué tasa debe invertir
$12,000 restantes de modo que el ingreso por los intereses anuales de las tres inversiones sea de $4500?
Usando proporciones, hay que los $12,000 restantes deben ser investidos a una tasa de 11%.
¿Qué es una proporción?Una proporción es una fracción de la cantidad total.
De las dos primeras inversiones, el ingreso es dado por:
0.08 x 15000 = $1,200.
0.09 x 22000 = $1,980
T = 1200 + 1980 = $3,180
Por la tercera inversión, busca-se un retorno de 4500 - 3180 = $1,320.
De esa forma, la tasa x es la seguiente:
12000x = 1320
x = 1320/12000
x = 0.11.
Los $12,000 restantes deben ser investidos a una tasa de 11%.
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I am rin pre-K and there givrung us math I can’t doe
Answer:
since your in pre-k bud x+y+z = abc :)
Step-by-step explanation:the alphabet ends in xyz so it only makes sense for the answer to be abc
this is totally correct:)
For the question of total area of the cuboid is 200cm^.
I understand where we divide 150 by 4.
But why do I need to multiply by 5, when there are 6 faces.
You need to multiply by 5 instead of 6 because each pair of opposite faces on a cuboid has the same area, so by considering one face from each pair, you ensure that you don't count any face twice.
When calculating the total surface area of a cuboid, you need to understand the concept of face pairs.
A cuboid has six faces, but each face has a pair that is identical in size and shape.
Let's break down the reasoning behind multiplying by 5 instead of 6 in the given scenario.
To find the surface area of a cuboid, you can add up the areas of all its faces.
However, each pair of opposite faces has the same area, so you avoid double-counting by only considering one face from each pair. In this case, you have five pairs of faces:
(1) top and bottom, (2) front and back, (3) left and right, (4) left and back, and (5) right and front.
By multiplying the average area of a pair of faces by 5, you account for all the distinct face pairs.
Essentially, you are considering one face from each pair and then summing their areas.
Since all the pairs have the same area, multiplying the average area by 5 gives you the total surface area.
When dividing 150 by 4 (to find the average area of a pair of faces), you are essentially finding the area of a single face.
Then, by multiplying this average area by 5, you ensure that you account for all five pairs of faces, providing the total surface area of the cuboid.
Thus, multiplying by 5 is necessary to correctly calculate the total surface area of the cuboid by accounting for the face pairs while avoiding double-counting.
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(a) Find the dimensions of a box with a square base with volume 125 and the minimal surface area. (Use symbolic notation and fractions where needed.) side of base: height: minimal surface area: (b) Find the dimensions of a box with a square base with surface area 44 and the maximal volume. (Use symbolic notation and fractions where needed.) Apply Newton's Method to f(x) and initial guess xo to calculate x1, x2, x3. f(x) = x3 – 12, xo = 2 (Give your answers to six decimal places.) XI X2 X3
The minimal surface area box has the following measurements: side of base = 5√2/2, height = 5√2, and minimal surface area = 25√2 + 50.
(a) Let x be the side of the square base and y be the height of the box. Then the volume of the box is given by V = x²y = 125, and the surface area is given by S = 2x² + 4xy. We want to minimize S subject to the constraint that V is fixed at 125.
Using the volume equation, we can solve for y in terms of x: y = 125/x². Substituting this expression for y into the surface area equation, we get S(x) = 2x² + 4x(125/x²) = 2x² + 500/x.
To minimize S(x), we take the derivative with respect to x and set it equal to zero:
S'(x) = 4x - 500/x² = 0
Solving for x, we get x = 5√2/2. Substituting this value into the expression for y, we get y = 5√2.
Therefore, the dimensions of the box with minimal surface area are: side of base = 5√2/2, height = 5√2, and minimal surface area = 25√2 + 50.
(b) Let x be the side of the square base and y be the height of the box. Then the surface area of the box is given by S = 2x² + 4xy = 44, and we want to maximize the volume V = x²y.
Using the surface area equation, we can solve for y in terms of x: y = (44 - 2x²)/4x. Substituting this expression for y into the volume equation, we get V(x) = x²(44 - 2x²)/4x = (11x² - x⁴/2).
To maximize V(x), we take the derivative with respect to x and set it equal to zero:
V'(x) = 22x - 2x³/2 = 0
Solving for x, we get x = √11. Substituting this value into the expression for y, we get y = (√11 - √2)²/2.
Therefore, the dimensions of the box with maximal volume are: side of base = √11, height = (√11 - √2)^²/2, and maximal volume = 11(√11 - √2)²/4.
(c) Using Newton's Method, we can approximate the root of f(x) = x³ - 12 starting with an initial guess of x₀ = 2:
x₁ = x₀ - f(x₀)/f'(x₀) = 2 - (2₃ - 12)/(32₂) = 1.833333
x₂ = x₁ - f(x₁)/f'(x₁) = 1.833333 - (1.833333³ - 12)/(31.833333²) = 2.005917
x₃ = x₂ - f(x₂)/f'(x₂) = 2.005917 - (2.005917³ - 12)/(3*2.005917²) = 2.000007
Therefore, the approximated root of f(x) = x³ - 12 using Newton's Method with an initial guess of 2 is x₃ = 2.000007.
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Karen got a prepaid debit card with $25 on it. For her first purchase with the card, she bought some bulk ribbon at a craft store. The price of the ribbon was $8 cents per yard. If after that purchase there was $22.36 left on the card, how many yards of ribbon did Karen buy?
Answer:
3.3 yards
Step-by-step explanation:
$25 minus $22.36 you will get 2.64 then divide by .8 you will get 3.3
Find the value of each variable in the parallelogram. Round your answers to the nearest tenth, if necessary. G a = (46) K (3a +19) b H 56°
The value of every variable in the parallelogram is: a = 9 HK = 27.0 GK = 46 G = 63.5°
What do you mean by Parallelogram ?A parallelogram is a special type of quadrilateral that has both pairs of opposite sides parallel and equal.These shapes include squares, rectangles, rhombuses, and rhomboids. All of these shapes have four sides, four corners, and four angles
We know that sides of a parallelogram are parallel and congruent, as opposite angle
According to question that GA equals HK, as:
46 is equal to 3a plus 19 When we subtract 19 from both sides, we get:
27 x 3a is the result of dividing both sides by 3:
we know that opposite angles in a parallelogram are congruent, we can use a = 9. Since angle H is 56 degrees, angle K must also be 56 degrees. The length of side HK can be determined using the Law of Cosines:
HK2 = GA2 + GK2 - 2(GA)(GK)cos(H) When we substitute the values we are familiar with, we obtain:
After solving the equation we obtain: HK2 = 462 + (3a + 19)2 - 2(46)(3a + 19)cos(56°).
HK2 = 2112 + 9a2 + 342a - 2764cos(56°) HK2 = 2112 + 9(9)2 + 342(9) - 2764cos(56°) HK2 732.4 By taking the square root of both sides, we obtain the following results:
∵ GA = 46, we can use the parallelogram's opposite sides being congruent to determine the length of side GK: HK 27.0
Then, we can use the Law of Cosines to determine the angle G's measurement:
cos(G) = (HK2 + GA2 - GK2) / (2(HK)(GA)) Using the values we are familiar with, we get,
cos(G) = (27.02 + 462 - 462) / (2(27.0)(46)) cos(G) 0.465 Using the inverse cosine, we get the following:
G ≈ 63.5°
Hence, the worth of every variable in the parallelogram is:
a = 9 HK = 27.0 GK = 46 G = 63.5°
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Use completing the square to solve (x + 7)(x – 9) = 25 for x.
answer- b on edge
Hey there!
Use the distributive property at first.
(x + 7)(x - 9) = 25
x (x - 9) + 7 (x - 9) = 25
x² - 9x + 7x - 9 = 25
x² - 2x - 9 = 25
x² - 2x = 25 + 9
x² - 2x = 88
Now make the LHS of a equation a perfect square by adding the square of -1 to both the sides.
x² - 2x + (-1)² = 88 + (-1)²
x² - 2x + 1 = 88 + 1
By factorising the terms in LHS & adding the terms in RHS..
(x - 1)² = 89
Take the square root of both the sides.
√(x - 1)² = √(89)
By simplifying..we will get the answer as...
x - 1 = +/- √89
Adding 1 to both the sides...the values of x will be :-
x = √89 + 1
x = 1 - √89
Hope it helps ya!
7th grade math probability
Super easy
(Look at picture)
Answer:
3/6
I say that the probability is 3/6 because there are 3 spaces, and we are counting one spin. There are 6 spots total.
Answer:
maybe the answer is 3/5.
Do message me if the answer is wrong
12) Erica has three more dimes than nickels in her pocket, for a total of $1.50. If x represents the number of
nickels, write and solve. State the numbers of nickels and dimes that Erica has.
Answer: 8 nickles 11 dimes
Step-by-step explanation: PLEASE GIVE BRAINLIEST IT HELPS ALOT
Find the first, second, and third quartiles for the ages of the 11 most powerful women using the data set listed.
26, 70, 37, 47, 31, 45, 43, 42, 44, 48, 35 a. Find the median. (1 point)
b. Find the first and third quartiles, 1 and 3. (1 point) c. Find the interquartile range. (1 point)
d. Identify any data entries less than 1 − 1.5(QR) or greater than 3 + 1.5(QR). (1 point)
e. Any outliers? (1 point)
f. Find the five-number summary of the data set. (1 point). Draw the box- and-whiskers plot.
Which list contains values that are all part of the solution set of the graphed inequality?
2, 1, 3.9, 4
1.3, 4, 0, 2.6
1.1, 1.5, 19.7, 8.2
11, 1, 48.5, 7
Answer:
you're answer will be C.
Step-by-step explanation:
have a great day or night✨
Answer:
C. 1.1, 1.5, 19.7, 8.2
Step-by-step explanation:
To rent a car, Cesar must pay $15 a day plus 5 cents for every mile he drives. In dollars, what is his final bill if he rents a car for 3 days and drives a total of 50 miles?
Answer:
$70
Step-by-step explanation:
What we know:
⇒ He must pay 15 dollars a day
⇒ He needs to pay an additional 5 cent for every mile he drives
⇒ He drives 50 miles for 3 days
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Since he pays $15 a day and he is driving this car for 3 days, we have to multiply 15 by 3.
15*3=45
He drove 50 miles and each mile is 5 cents so we have to multiply those as well.
50*.5=25
Now we add both the sums togather~
25+45= $70
∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞The amount he has to spend for his car rental is $275.
this year, a small business had a total revenue of $54,400. if this is 28% more than their total revenue the previous year, what was their total revenue the previous year?
Answer:
42,5000
Step-by-step explanation:
Determine whether the scenario involves independent or dependent events. Then find the probability.
Your sock drawer has two white socks, six brown socks, and four black socks. You randomly pick a sock and put it on your left foot and then pick another sock and put it on your right foot. You leave the house with a white sock on your left foot and a brown sock on your right. P (white, brown WITHOUT replacing)
-Independent; 1/11
-Dependent; 1/12
-Dependent; 1/11
-Independent; 1/12
The second sock picked is dependent on the first. The probability of picking a white sock for the left foot and a brown sock for the right foot without replacing the first sock is 1/12.
To calculate the probability of picking a white sock for the left foot and a brown sock for the right foot without replacing the first sock, we first need to count the total number of possible outcomes. There are 8 socks in the drawer: 2 white, 6 brown, and 4 black. Since we are picking two socks without replacing the first, the total number of possible outcomes is 8C2 = 28.
Next, we need to count the number of favourable outcomes. In this case, there is only one favourable outcome: picking a white sock for the left foot and a brown sock for the right foot.
Therefore, the probability of picking a white sock for the left foot and a brown sock for the right foot without replacing the first sock is 1/28.
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Which of the following tables represents a linear function? x −4 −1 0 1 2 y −4 2 −4 0 2 x 1 1 1 1 1 y −3 −2 −1 0 1 x −6 −1 0 2 3 y −7 negative sixteen thirds −5 negative thirteen thirds −4 x −2 −1 0 2 4 y −4 negative two thirds −1 two thirds 1 Question 5(Multiple Choice Worth 5 points) (Experimental Probability MC) A bag is filled with an equal number of red, yellow, green, blue, and purple socks. The theoretical probability of a child drawing 2 yellow socks from the bag with replacement is one fifth. If the experiment is repeated 175 times, what is a reasonable prediction of the number of times he will select 2 yellow socks? one fifth 10 25 35 Question 6(Multiple Choice Worth 5 points) (Identifying Functions LC) The graph represents a relation where x represents the independent variable and y represents the dependent variable. a graph with points plotted at negative 5 comma 1, at negative 2 comma 0, at negative 1 comma negative 1, at 0 comma 2, at 1 comma 3, and at 5 comma 1 Is the relation a function? Explain. No, because for each input there is not exactly one output. No, because for each output there is not exactly one input. Yes, because for each input there is exactly one output. Yes, because for each output there is exactly one input. Question 7(Multiple Choice Worth 5 points) (Line of Fit MC) A movie theater wanted to determine the average rate that their diet soda is purchased. An employee gathered data on the amount of diet soda remaining in the machine, y, for several hours after the machine is filled, x. The following scatter plot and line of fit was created to display the data. scatter plot titled soda machine with the x axis labeled time in hours and the y axis labeled amount of diet soda in fluid ounces, with points at 1 comma 30, 1 comma 40, 2 comma 34, 3 comma 24, 3 comma 30, 4 comma 18, 5 comma 15, 5 comma 24, 6 comma 4, 6 comma 20, 7 comma 10, and 8 comma 0, with a line passing through the coordinates 3 comma 26.7 and 7 comma 7.66 Find the y-intercept of the line of fit an
The y-intercept of the line of fit is approximately 43.94 fluid ounces.
What is Probability ?
Probability can be defined as ratio of number of favourable outcomes and total number of outcomes.
The answer is 35. If the theoretical probability of drawing two yellow socks is one fifth, then the experimental probability of drawing two yellow socks in one trial with replacement is also one fifth. Therefore, out of 175 trials, the number of times he will select two yellow socks can be predicted by multiplying the number of trials by the experimental probability: 175 * (1/5) = 35.
No, because for each input there is not exactly one output. The relation is not a function because for the input x = -5, there are two possible outputs: y = 1 and y = -1. Therefore, the relation violates the vertical line test, which requires that every vertical line intersects the graph at most once for the relation to be a function.
The y-intercept of the line of fit is approximately 43.94 fluid ounces. To find the y-intercept, we can look at the point where the line of fit intersects the y-axis (i.e., when x = 0). From the equation of the line of fit, we can see that the y-coordinate when x = 0 is approximately 43.94, which represents the initial amount of diet soda in the machine before it starts to be purchased.
Therefore, The y-intercept of the line of fit is approximately 43.94 fluid ounces.
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Find the relative rate of change at the given value of . Assume is in years and give your answer as a percent
Answer:
84.37 %.
Step-by-step explanation:
The question is shown in the attached figure.
We have,
\(f(t)=2t^3+10,\ t=3\)
We can find the value of f(t) at t = 3,
\(f(3)=2(3)^3+10\\\\f(3)=64\)
Finding f'(t).
\(f'(t)=6t^2\)
Finding f'(t) at t = 3
\(f'(3)=6(3)^2\\\\=54\)
The relative change is calculated as :
\(\dfrac{f'(t)}{f(t)}=\dfrac{54}{64}\\\\=0.8437\)
In percentage rate of change,
\(\dfrac{f'(t)}{f(t)}=0.8437\times 100\\\\=84.37\%\)
Hence, the required percent change is 84.37 %.
Can someone help me............................
Answer:
a), and d)
Step-by-step explanation:
\((x^{2}) * (\sqrt{x}) = (x^{2}) * x^{1/2} = x\)
HELPPPPP!!!!!!!!!!!!!!
Answer:
B.
Step-by-step explanation:
-2/3
from the y-intersect (0,0), you went up 2 units(positive) and left 3 times (negative) to get the other points so negative and positive are negative.
How many more monthly payments are there in a 9 year term compared to a 5 year term?
Answer: 48 more monthly payments
Step-by-step explanation:
write a function based on the given parent function and transformations in the given order
parent function y=x^2
shift 2 units to the right
reflect over the x-axis
shift downward 4 units
Answer:
\(y=-\left(x-2\right)^{2}-4\) is the resultant function after transformations.
Step-by-step explanation:
Parent function is given as:
\(y=x^2\) (Graph 1 in attachments, it is a parabola)
Let us apply the transformations step by step:
1. Shift 2 units to the right i.e.
change the value of \(x\) by 2.
The equation of a parabola can be: \(y=(x-a)^2\) where \(a\) is the point on x axis which is the axis of symmetry.
Right side means the equation becomes:
\(y=(x-2)^2\) (Graph 2 in attachments)
2. Reflect over x axis i.e.
change the sign of y from + to -.
\(y=-(x-2)^2\) (Graph 3 in attachments)
3. Shift downward 4 units i.e.
Subtract 4 from the value of y:
\(y=-(x-2)^2-4\) (Graph 4 in attachments)
A farmer wants to take 4 of his animals to a city. He has to select the animals from 5 cows and 5 goats. (a) How many possible selections can he make? (b) In how many of these selections will there be more cows than goats?
Answer:
(a) 210
(b) 55
Step-by-step explanation:
(a) I'm assuming the animals are considered to be unique rather than identical. The order of the animals isn't important, so the number of ways he can choose 4 animals from 10 is:
₁₀C₄ = 210
(b) If there are more cows than goats, then there are either 3 cows and 1 goat:
₅C₃ ₅C₁ = 50
Or there are 4 cows:
₅C₄ = 5
The total number of combinations is 55.
Domain:
Range:
What is the domain and range?
Answer:
Domain are all values of x, or the inputs, of a function
Range is all values of y, or the outputs, of a function
Step-by-step explanation:
Answer:
Domain are all values of x, or the inputs, of a function
Range is all values of y, or the outputs, of a function
Step-by-step explanation:
solbe for x : x-1/x+3x+3=0
Answer:
x=1/4 or x=-1
Step-by-step explanation:
x−
1
x
+3x+3=0
4x2+3x−1
x
=0
Step 1: Multiply both sides by x.
4x2+3x−1=0
(4x−1)(x+1)=0(Factor left side of equation)
4x−1=0 or x+1=0(Set factors equal to 0)
x=
1
4
or x=−1
Check answers. (Plug them in to make sure they work.)
x=
1
4
(Works in original equation)
x=−1(Works in original equation)
Answer:
x=
1
4
or x=−1
HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE 10 POINTS
Answer:
it is d because they dont have enuff info :)