Answer:
x = 4
Step-by-step explanation:
6x - 8 = 4x
subtract 4x from both sides of the equation
6x - 4x -8 = 4x - 4x
2x - 8 = 0
add 8 to both sides of the equation
2x - 8 + 8 = 0 + 8
2x = 8
divide both sides of the equation by 2
2x/2 = 8/2
x = 4
Answer:
x = 4.
Step-by-step explanation:
6x - 8 = 4x
6x - 4x - 8 = 0
6x - 4x = 8
2x = 8
x = 4.
1. Find the surface area of the sphere 40 feet
Answer:
r≈1.78
Step-by-step explanation:
Isaac has a piece of cardboard measuring 7 in x 8 in. He wants to cut a square from
each corner, equal in size, to create an open top box. His intention is to create an open
top box with the maximum volume. Find the maximum volume of the box he creates,
rounded to the hundredths place.
The maximum volume of the box Isaac creates is 2736 cubic inches.
The formula for the maximum volume of an open top box created from a rectangular piece of cardboard with sides of length x and y, with squares of side length s cut from each corner, is:
Volume = (x - 2s)(y - 2s)s
In our case, x = 7 in and y = 8 in. We are looking for the maximum volume, so we must solve for s.
We can rearrange the equation to solve for s:
s = (xy) / (2x + 2y - 4s)
Substitute x, y, and s into the equation to simplify:
s = (7×8) / (2×7 + 2×8 - 4s)
Multiply both sides by [(2×7 + 2×8 - 4s)] to obtain an equation in terms of s:
(7×8) = s×(2×7 + 2×8 - 4s)
Subtract (2×7 + 2×8) from both sides to obtain an equation in terms of s only:
(7×8) - (2×7 + 2×8) = s(4s - 2×7 - 2×8)
Factor the left side of the equation:
-2×7×8 = s(4s - 2×7 - 2×8)
Divide both sides of the equation by (4s - 2×7 - 2×8) to solve for s:
s = -2×7×8 / (4s - 2×7 - 2×8)
Substitute s into the equation for maximum volume to find the maximum volume:
Volume = (7 - 2s)(8 - 2s)s
Plug in the value of s we found to get:
Volume = (7 - 2×(-2×7×8 / (4s - 2×7 - 2×8)))(8 - 2×(-2×7×8 / (4s - 2×7 - 2×8)))×(-2×7×8 / (4s - 2×7 - 2×8))
Simplify:
Volume = (7 + 16)(8 + 16)×(16 / 4)
Factor:
Volume = (23)(24)×4
Therefore, the maximum volume of the box Isaac creates is 2736 cubic inches.
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how do you multiply and divide with scientific notation
Answer: To multiply two numbers in scientific notation, multiply their coefficients and add their exponents. To divide two numbers in scientific notation, divide their coefficients and subtract their exponents.
Step-by-step explanation:
A computer has generated one hundred random numbers over the interval 0 to 1. What is the probability that exactly 20 will be in the interval 0.1 to 0.35
The probability that exactly 20 random numbers will fall in the interval 0.1 to 0.35 is approximately 0.0223, or 2.23%.
To solve this problem, we need to use the binomial probability formula:
\(P(X = k) = (n choose k) p^k ( (1 - p)^{n-k}\)
where:
- X is the random variable representing the number of successes (random numbers in the interval 0.1 to 0.35)
- k is the number of successes we want (exactly 20)
- n is the total number of trials (100)
- p is the probability of success (the probability that a randomly generated number falls in the interval 0.1 to 0.35)
To find p, we need to determine the fraction of the interval 0 to 1 that is between 0.1 and 0.35:
\(p = (0.35 - 0.1) / 1 = 0.25\\p = \frac{0.35-0.1}{1} = 0.25\)
Now we can plug in the values and calculate the probability:
\(P(X = 20) = (100 choose 20) (0.25)^{20} (1-0.25)^{100-20}\)
= 0.0223
Therefore, the probability that exactly 20 random numbers will fall in the interval 0.1 to 0.35 is approximately 0.0223, or 2.23%.
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Find the perimeter of ΔNOP. Round your answer to nearest tenth if necessary. Figures are not necessarily drawn to scale ML = 5 MK = 4 KL = 7
ON = x NP = 6.4 OP = 8
The perimeter of ΔNOP is equal to 25.6 units.
What is the basic proportionality theorem?In Mathematics, the basic proportionality theorem states that when any of the two (2) sides of a triangle is intersected by a straight line which is parallel to the third (3rd) side of the triangle, then, the two (2) sides that are intersected would be divided proportionally and in the same ratio.
By applying the basic proportionality theorem to the given triangles, we have the following:
ΔNOP ≅ ΔKLM
OP/ML = x/KL
x = (OP × KL)/ML
x = (8 × 7)/5
x = ON = 11.2 units.
For the perimeter of ΔNOP, we have;
Perimeter of ΔNOP = OP + NP + ON
Perimeter of ΔNOP = 8 + 6.4 + 11.2
Perimeter of ΔNOP = 25.6 units.
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There is an isometric cuboid. The length of the shortest edge is 14cm. How long are the other edges?
Answer:
Step-by-step explanation:
what do u mean i domt rlly inderdstnd
Bulk micromachining refers to a relatively deep wet etching process into a single-crystal silicon substrate: True False
It is false that bulk micromachining refers to a relatively deep wet etching process into a single-crystal silicon substrate.
Bulk micromachining refers to a process where the entire thickness of a material, typically a single-crystal silicon substrate, is selectively etched to create three-dimensional structures. It involves the removal of material from the bulk, or entire volume, of the substrate to achieve the desired shape or structure. This process can be achieved through wet etching or dry etching techniques. The term "bulk" refers to the fact that the etching occurs throughout the entire substrate thickness, rather than just the surface. Bulk micromachining is commonly used in the fabrication of microelectromechanical systems (MEMS) devices and integrated circuits, where precise three-dimensional structures need to be created within the substrate material.
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if MATRIX D IS INVERSE OF MATRIX C , what is equal to d
Answer:
it has to be 4+4 multiplied by 34 with35 the answer .7_7
Question 2 Find the relative maximum of f(x)= - (30/10)x^5+(30/6)x^3 Keep 4 decimal places.
The relative maximum of f(x) is at x=1, with a value of f(1) = -2.5000.
How to calculate the relative maximum of the functionTo find the relative maximum of the function f(x)=- (30/10)xlog⁵ )+(30/6)x³, we need to take the derivative of the function and find where it equals zero.
f(x) = - (30/10)x⁵ + (30/6)x³
f'(x) = - (150/10)x⁴ + (90/6)x²
f'(x) = -15x⁴ + 15x²
Setting f'(x) equal to zero:
0 = -15x⁴ + 15x²
0 = 15x²(-x² + 1)
x² = 1
x = ± 1
Now we need to find if these values are relative maxima or minima.
We can do this by taking the second derivative of f(x) and evaluating it at these critical points.
f''(x) = -60x³ + 30x
f''(1) = -60(1)³ + 30(1) = -30
f''(-1) = -60(-1)³ + 30(-1) = 30
Since f''(1) is negative, we know that x=1 is a relative maximum.
Therefore, the relative maximum of f(x) is at x=1, with a value of f(1) = -2.5000.
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A website offers a coupon such that each customer has a 15\%15%15, percent chance of getting the coupon each day they visit the site. Aya visits the website for 666 consecutive days.
Answer:
0.62
Complete question:
What is the probability that at Aya will be offered a coupon on at least one of the days she visits the website?
Step-by-step explanation:
assuming,
A: Aya gets a coupon one day. P(A) = 0.15
B: Aya doesn't get a coupon one day. P(B) = 1 - 0.15 = 0.85
Aya doesn't get a coupon in any of 6 days = P(B)^6 = 0.85^6 = 0.38
The probability of Aya getting at least 1 coupon after 6 days is the complement of don't getting any coupon after 6 days, that is:
1 - P(B)^6= 1 - 0.38 = 0.62
!!WILL MARK BRAINLIEST!! Write in slope-intercept form an equation of the line that passes through the given points.
Answer:
y = 1/4x
Step-by-step explanation:
First find the slope
m = (y2-y1)/(x2-x1)
= (2-1)/(8-4)
= 1/4
The slope intercept form of a line is
y = mx+b
where m is the slope and b is the y intercept
y = 1/4x +b
Substitute a point into the equation
1 = 1/4(4) +b
1 = 1+b
b= 0
y = 1/4x
There are 7 days in a week.
Let x represent the number of weeks and y represent the corresponding number of days.
Complete the table using the equation y=7x.
x y
5
6
7 49
8
Answer:
Step-by-step explanation:
The equation is y=7x
x y Calculation
5 35 y=7x, y=7*5, y=35
6 42 y=7x, y=7*6, y=42
7 49 y=7x, y=7*7, y=49
8 56 y=7x, y=7*8, y=56
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation. Using this equation, find out the time at which the rocket will reach its max, to the nearest 100th of a second. y=-16x^2+218x+75
Answer:
6.81s
Step-by-step explanation:
First you must know that the velocity of the body is zero at the maximum height.
v =dy/dx
v= -32x+218
Since v = 0
-32x+218 =0
32x =218
x= 218/32
x = 6.81s
Hence the rocket reaches its maximum height after 6.81s
Answer i got it wrong it was 5.94
Step-by-step explanation:
7 congruent circles with radius 4 are packed into a regular hexagon, so hexagon sides are tangent to 6 circles. find the perimeter of the hexagon
The perimeter of the hexagon with 7 congruent circles of radius 4 are packed into it, so hexagon sides are tangent to 6 circles is -
6s, or approximately 60.72.
Let's begin by drawing a diagram:
______
/ \
/ o \
/ \
/ o o o \
/ o o o o \
\ o o o o /
\ o o o /
\ /
\__________/
Each circle is tangent to two sides of the hexagon, so the distance between two opposite vertices of the hexagon is equal to the diameter of a circle, which is 8.
Let's call the side length of the hexagon "s".
Then we can draw a right triangle with legs of length s/2 and s/4, and hypotenuse of length 8.
Using the Pythagorean theorem, we can solve for s:
(s/2)^2 + (s/4)^2 = 8^2
5s^2/16 = 64
s^2 = 102.4
s = sqrt(102.4) = 10.12 (rounded to two decimal places)
Therefore, the perimeter of the hexagon is 6s, or approximately 60.72.
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A figure can be broken into a parallelogram and rectangle.
Which is a way to break the irregular figure into shapes that you have area formulas for?
1 parallelogram and 1 rectangle
1 parallelogram and 1 triangle
1 rectangle and 1 triangle
1 square and 1 triangle
Btw the answer is a or also known as
1 parallelogram and 1 rectangle
The way to break an irregular figure into shapes that you have area formulas for is by using 1 parallelogram and 1 rectangle.
To find the area of an irregular figure, you can divide it into simpler shapes that you know the area formulas for. In this case, using 1 parallelogram and 1 rectangle can be a good way to break the irregular figure into shapes that you have area formulas for.
A parallelogram has an area formula of base times height, while a rectangle has an area formula of length times width. By dividing the irregular figure into these shapes, you can calculate their areas separately and then add them together to find the total area of the figure.
Using other combinations of shapes such as 1 parallelogram and 1 triangle, 1 rectangle and 1 triangle, or 1 square and 1 triangle may not be as effective in breaking down the irregular figure into simpler shapes.
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What can good debt do to your credit score?
Responses
nothing
increase it
negatively affect it
decrease it
The effect of good debt to ones credit score is that is would increase it. That is option B.
What is a credit score?A credit score is defined as the expression that can be used to show a customer's worth regarding the payment of their debts.
A customer's credit score can be rated as follows:
BadFairGood orExcellent credit score.A good debt is the ability of a customer to quickly pay off their debt which has been noted as one of the qualities that raise their credit score.
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What is the gradient along the same stretch of the Sacramento River (from this the 115 ft interval at mile marker 195, to the mouth of the river at sea level) _______________ft/mi.
without knowing the distance between mile marker 195 and the mouth of the river, we cannot calculate the gradient along the same stretch of the Sacramento River.
The gradient along the same stretch of the Sacramento River can be calculated by finding the change in elevation divided by the distance.
Given that the interval is 115 ft and the distance is from mile marker 195 to the mouth of the river at sea level, we need to determine the total distance in miles.
To do this, we need to know the distance between mile marker 195 and the mouth of the river. Unfortunately, this information is not provided in the question.
Without knowing the specific distance, we cannot accurately calculate the gradient. Therefore, the answer cannot be determined with the information given.
In conclusion, without knowing the distance between mile marker 195 and the mouth of the river, we cannot calculate the gradient along the same stretch of the Sacramento River.
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(7a*2b)+3c=3c+(7a*2b)
A.Commutative Property of Addition
B.Commutative Property of Multiplication
C.Associative Property of Addition
D.Associative Property of Multiplication
(7a*2b)+3c=3c+(7a*2b) the property for the given expression is Option A) Commutative Property of Addition.
The given expression is (7a*2b) + 3c = 3c + (7a*2b). This equation demonstrates the Commutative Property of Addition.
The Commutative Property of Addition states that the order in which numbers are added does not affect the result.
In mathematical terms, it can be written as: a + b = b + a.
In your expression, you have terms involving both addition and multiplication. However, since addition is involved on both sides of the equation, we can focus on the addition aspect.
(7a*2b) + 3c = 3c + (7a*2b)
First, we can rearrange the terms on the left side:
7a*2b + 3c = 3c + 7a*2b
Now, observe that the terms on both sides of the equation are the same: 7a*2b and 3c.
They are just arranged in a different order. This aligns with the Commutative Property of Addition, which says the order of addition doesn't matter.
Therefore, the expression is an illustration of this property, and the correct answer is the Commutative Property of Addition (A).
In summary, the expression shows that changing the order of terms within an addition does not change the result, thus demonstrating the Commutative Property of Addition.
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A company's production process has 5 steps of preparing, manufacturing, refining, validating, and shipping. Let's say there are 12 preparation stations and 4 manufacturing stations and 2 refining stations and 2 validating stations and 2 shipping stations.
If it is equally likely for a product to be prepared on any of the preparation stations, please find the probability that randomly chosen product was prepared on preparation stations 6, 7, and 8.
Therefore, the probability that a randomly chosen product was prepared on preparation stations 6, 7, and 8 is 0.25, or 25%.
The probability that a randomly chosen product was prepared on preparation stations 6, 7, and 8 can be found using the formula:
P(event) = number of favorable outcomes / total number of possible outcomes
In this case, the number of favorable outcomes is 3, since there are 3 preparation stations that we are interested in (6, 7, and 8). The total number of possible outcomes is 12, since there are 12 preparation stations in total.
So, the probability that a randomly chosen product was prepared on preparation stations 6, 7, and 8 is:
P(event) = 3 / 12
P(event) = 0.25
Therefore, the probability that a randomly chosen product was prepared on preparation stations 6, 7, and 8 is 0.25, or 25%.
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Four and two thirds add one and three fourths
Answer:
4 2/3 + 1 3/4 = 6 5/12
Dynamically complete models Consider the following model where the expected value of y, conditional on all current and past values of z and y, is equal to Ely,IZ): y= Bo + Bızı + Bazi-1 + $3Zt-2 + $4Z1-3 + up Which of the following variables must be contained in Z for the model to be dynamically complete? Check all that apply. 0 Y:-1 Zt-2 O Zt-1 21-3 O Zt O yt-2
The variables that must be contained in Z for the model to be dynamically complete are as follows:Zt-2Zt-1Ztyt-2 Thus, the correct answer is (a), (b), (c), and (g). Hence, this is the required solution.
The following variables must be included in Z for the model to be dynamically complete: Zt-2, Zt-1, Zt, yt-2. Thus, the correct answer is (a), (b), (c), and (g).Explanation:According to the given information and model, for the model to be dynamically complete, it needs to include some variables in Z. To be precise, for a model to be considered as dynamically complete, all the past values should be included in Z. The given model is:y
= Bo + Bızı + Bazi-1 + $3Zt-2 + $4Z1-3 + up .Expected value of y, conditional on all current and past values of z and y, is equal to Ely,IZ.The variables that must be contained in Z for the model to be dynamically complete are as follows:Zt-2Zt-1Ztyt-2 Thus, the correct answer is (a), (b), (c), and (g). Hence, this is the required solution.
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calculate the probability the proportion of the 30 americans sampled that agree climate change is an immediate threat to humanity exceeds 35%.
The probability that the proportion of the 30 Americans sampled that agree climate change is an immediate threat to humanity exceeds 35% is approximately 82.38%.
Assuming the sample of 30 Americans is representative of the population, we can calculate the sample proportion as the number of individuals in the sample who agree divided by the total sample size. Let's assume that the sample proportion is p'.
To calculate the probability of the proportion exceeding 35%, we need to find the z-score of the value 0.35 using the formula:
z = (p' - p) / √[p * (1 - p) / n]
where p is the population proportion (which we don't know), and n is the sample size (30 in this case). We can use p' as an estimate of p.
Once we find the z-score, we can use a standard normal distribution table or a calculator to find the probability that the z-score is greater than the value we calculated. This probability is the probability that the proportion of Americans who agree that climate change is an immediate threat to humanity exceeds 35%.
For example, if p' = 0.4, then the z-score is:
z = (0.4 - 0.35) /√ [0.35 * (1 - 0.35) / 30] = 1.03
Using a standard normal distribution table, we can find that the probability of a z-score being greater than 1.03 is approximately 0.8238, or about 82.38%.
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however, you recently selected a file at random and found that the paper work was not in order. who is the most likely culprit?
The most likely culprit is whoever was responsible for filing the paper work. They likely failed to properly organize and file the documents.
The most likely culprit for the paper work not being in order is whoever was responsible for filing it. To determine who this is, it is helpful to look at who had access to the documents. This could include the person who initially created the paperwork, anyone who has handled the paperwork since then, and anyone with access to the file where the paperwork is stored. Once the list of possible suspects has been narrowed down, it is important to check if any of them have a history of filing incorrectly or not following proper procedure. It is also helpful to look at any recent changes to the filing system or personnel which may have caused an inadvertent disruption in the filing process. Taking all of these factors into account can help to identify the most likely culprit.
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if a giraffe has two eyes, a monkey has two eyes, and an elephant has two eyes, how many eyes do we have?
Which figure is the Preimage?
Katrina sketches the graphs of four functions on a coordinate plane. Which of the following functions is linear?
The function that is linear is the function that is a straight line
How to determine the function that is linearA linear function can be identified on a graph by its shape.
A linear function will always have a straight line. So, if the graph of several functions, then the linear function would be a straight line.
To confirm that it is a linear function, you can check if it has the form y = mx + b, where m and b are constants.
In this form, m represents the slope of the line, which is a measure of how steep the line is. and b is the y-intercept
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How do I do this? We’re using laws of sine to figure out the answer
Answer:
AC = 32.0274615...
Step-by-step explanation:
First, you have to find ∠C which is simply 180 - 75 - 44. (Since there are 180° in a triangle) That would result in 61°. Then you have to set up the law of sines which is:
sin(∠C)/AB = sin(∠B)/AC
Since we are finding AC, we have to isolate it on one side of the equation:
AC = [sin(∠B) * AB]/sin(∠C)
Then, let's substitute the values for ∠B, ∠C, and AB to get:
AC = [sin(75°) * 29]/sin(61°)
After using a calculator"
AC = 32.0274615...
Hope this helps :)
The endpoints of CD are (-2,-4) and D(6,2). What are the coordinates of the midpoints of CD
Answer:
(2,-1)
Step-by-step explanation:
\(midpoint = ( \frac{ - 2 + 6}{2} , \frac{ - 4 + 2}{2} ) \\ \)
\(midpoint = ( \frac{4}{2} , \frac{ - 2}{2} ) \\ \)
\(midpoint = (2, - 1)\)
You need to build a model that predicts the volume of sales (Y) as a function of advertising (X). You believe that sales increase as advertising increase, but at a decreasing rate. Which of the following would be the general form of such model? (note: X^2 means X Square)
A. Y ^ = b0 + b1 X1 + b2 X2^2
B. Y ^ = b0 + b1 X + b2 X / X^2
C. Y ^ = b0 + b1 X + b2 X^2
D. Y ^ = b0 + b1 X
E. Y ^ = b0 + b1 X1 + b2 X2
The general form of such a model that predicts the volume of sales (Y) as a function of advertising (X) in which sales increase as advertising increases, but at a decreasing rate is given by Y^ = b0 + b1X + b2X². Option C.
The general form of the model that fits the description of the sales model that is given in the problem is C. Y^ = b0 + b1X + b2X². Where Y^ represents the predicted or estimated value of Y. b0, b1, and b2 are the coefficients of the model, and they represent the intercept, the slope, and the curvature of the relationship between X and Y, respectively.
In this model, the variable X has a quadratic relationship with the variable Y because of the presence of the squared term X². This indicates that the effect of X on Y is not linear but curvilinear, which means that the effect of X on Y changes as X increases. Specifically, the effect of X on Y increases initially but then levels off or diminishes as X becomes larger. Answer option C.
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Solve for c: -5C + 5 = 4c - 58
Answer:
c=7
Step-by-step explanation:
−5c+5=4c−58
Subtract 4c from both sides.
−5c+5−4c=4c−58−4c
−9c+5=−58
Subtract 5 from both sides.
−9c+5−5=−58−5
−9c=−63
Divide both sides by -9.
-9c/-9= -63/-9
c=7