There are 6 square, 3 circles and 2 triangle on left side of hanger so equation is,
\(\begin{gathered} 6\cdot2+3\cdot3+2\cdot t=12+9+2t \\ 21+2t \end{gathered}\)There are 3 squares, 2 circles and 5 triangles in right side portion of hanger. So equation for right portion is,
\(\begin{gathered} 3\cdot2+2\cdot3+5t=6+6+5t \\ =12+5t \end{gathered}\)The hanger is balanced on both side means both equation is equal to each other. So equation for the hanger is,
\(21+2t=12+5t\)Correct options are 1, 2 and 5 options.
Which of the following is the solution to the
inequality below?
-4x-7<5
A. x>-1
B. x < -¹/
C. x>-3
D. x<-3
Answer:
the answer to this problem Is C. x>-3
The salaries of Pet Detectives are normally distributed with a mean of $32,000 and a standard deviation of $3000. If 100 Pet Detectives are randomly selected, find the probability that their average salary is greater than $32,500. Select the single best answer choice
Answer:
\( P(\bar X> 32500)\)
And for this case we can use the z score formula given by:
\( z =\frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}\)
And replacing the info given we got:
\( z =\frac{32500-32000}{\frac{3000}{\sqrt{100}}}= 1.67\)
And for this case we can find the probability with the normal standard table using the complement rule and we got:
\( P(z> 1.67) = 1-P(z<1.67) = 1-0.953 = 0.047\)
Step-by-step explanation:
Let X the random variable that represent the salaries of Pet Detectives of a population, and for this case we know the distribution for X is given by:
\(X \sim N(32000,3000)\)
Where \(\mu=32000\) and \(\sigma=3000\)
We select a sample size of n =100 Pet Detectives and we want to find the following probability:
\( P(\bar X> 32500)\)
And for this case we can use the z score formula given by:
\( z =\frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}\)
And replacing the info given we got:
\( z =\frac{32500-32000}{\frac{3000}{\sqrt{100}}}= 1.67\)
And for this case we can find the probability with the normal standard table using the complement rule and we got:
\( P(z> 1.67) = 1-P(z<1.67) = 1-0.953 = 0.047\)
Simplify (2^3)^-2
-1/64
1/64
2
64
Answer:
1/64
Step-by-step explanation:
Answer:
B edge 2022
Step-by-step explanation:
consider the verizon data. find a 95% ci for the ratio of medians. estimate the percent bias (relative to the standard error) and compare with the results for the ratio of means
95% confidence interval for the ratio of medians is a range of values that we are confident contains the true population ratio, with a specified level of confidence.
A confidence interval is a range of values that we are confident contains the true population parameter, with a specified level of confidence. In this case, we are looking at the ratio of medians in the Verizon data and finding a 95% confidence interval for the ratio.
Let's say the sample median for the first data set is M1 and the sample median for the second data set is M2. The standard error for M1 and M2 can be calculated using the formula for the standard error of the median.
Next, we use the formula for a confidence interval for the ratio of medians:
=> (M1/M2) +/- (Z * SE(M1/M2)),
where Z is the critical value from a standard normal distribution for a 95% confidence level.
The percent bias is the difference between the estimated value and the true value, divided by the true value and expressed as a percentage. In this case, we will calculate the percent bias of the confidence interval for the ratio of medians relative to the standard error.
Finally, we compare the results for the ratio of medians with the results for the ratio of means. This comparison can give us an idea of the difference in the level of accuracy and precision between the two estimates.
Complete Question:
Consider the Verizon data. find a 95% confidence interval for the ratio of medians. estimate the percent bias (relative to the standard error) and compare with the results for the ratio of means
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PLS HELP WILL GIVE BRAINLIEST IF ANSWER IS RIGHT (NO LINKS)
Identify the surface area of the composite figure to the nearest tenth.
Answer:
D.
Step-by-step explanation:
6a² = surface area for cube
6(5)² = 150
2\(\pi\)(r)(h)+2\(\pi\)r² = surface area cylinder
2\(\pi\)(2)(3)+2\(\pi\)(4) = 20pi
150 + 20pi = 212.8318531
which expression is equivalent to the given expression
I need help ASAP!
**PLEASE HELP THIS IS DUE TODAY** when the sun's declination is at the highest point, what direction does the sun rise and set?
Find the future value of an investment if $650 is deposited at the beginning of each month for 4 years and the interest rate is 2.2% compounded monthly.
$28,600.00
$35,252.54
$32,615.54
$22,425.51
The future value of the investment is equals to $\(32,582.78\).
What is future value of the monthly investment?The number of monthly payments over 4 years is:
= 4 years x 12 months/year
= 48 months.
We will use future value of an annuity formulae to solve which is FV = PMT x [(1 + r)^n - 1] / r
Plugging in the values, we get:
FV = 650 * [(1 + 0.022/12)^48 - 1] / (0.022/12)
FV = 650 * (0.09190014604/0.00183333333)
FV = 650 * 50.1273524766
FV = 32582.7791098
FV = $32,582.78.
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Find the distance between the two points.
(2,2)
(-3,-4)
Enter the number that
goes beneath the
radical symbol. ✓ [?]
Answer:
\(\sqrt{61}\)
Step-by-step explanation:
Hi there!
We are given the points (2, 2) and (-3, -4).
We want to find the distance between them.
We can use the distance formula for that, which is \(\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\), where \((x_1, y_1)\) and \((x_2, y_2)\) are points
We have two points, which is needed for that, but let's label their values to avoid confusion
\(x_1=2\\y_1=2\\x_2=-3\\y_2=-4\)
Now substitute those values into the formula to find the distance
\(\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)
\(\sqrt{(-3-2)^2+(-4-2)^2}\)
Simplify the values under the radical
\(\sqrt{(-5)^2+(-6)^2}\)
Raise the numbers under the radical
\(\sqrt{25+36}\)
Add the numbers under the radical together
\(\sqrt{61}\)
The answer cannot be simplified down further, so \(\sqrt{61}\) is the answer.
Hope this helps!
A metalworker has a metal alloy that is 15% copper and another alloy that is 70% copper. How many kilograms of each alloy should the metalworker combine to create 80 kg of a
48% copper alloy?
The metalworker should use kilograms of the metal alloy that is 15% copper and kilograms of the metal alloy that is 70% copper
(Type whole numbers.)
Answer:
18 kg of 15% copper alloy
62 kg of 70% copper alloy
Step-by-step explanation:
Step 1: Calculate the total amount of copper present in 80 kg of 48% copper alloy
Total Copper = 80 x 0.48 = 38.4 kg
Step 2: Calculate the amount of 15% copper alloy required
15% Copper Alloy = 38.4 / 0.15 = 256 kg
Step 3: Calculate the amount of 70% copper alloy required
70% Copper Alloy = (80 - 256) = -176 kg
Step 4: Since the amount of 70% copper alloy required is negative, the metalworker should use 256 kg of the 15% copper alloy and 0 kg of the 70% copper alloy to create 80 kg of 48% copper alloy.
Two trains leave a station at the same time. One train is heading south at a rate that is 1.5 times faster than the other train, which is heading north. After 5 hours, the trains are 750 miles apart.
1) At what speed, in mph, are the two trains getting farther away from each other?
2) What is the speed, in mph, of the faster train?
3) Suppose the trains simultaneously leave stations that are 450 miles apart and travel toward each other. In how many hours will the trains meet?
Answer:
1) 150 mph
2) 90 mph
3) 3 mph
Explanation:
1) The trains move at a constant speed, and after 5 hours they are 750 miles apart. 750/5=150
2) The faster train is 1.5 faster than the slower train, and we know their combined speed is 150 mph. 150/5=30, and 30x3=90.
3) We know that both trains combined travel 150 mph. 450/150=3.
Based on the data given, the speeds and time taken are as follows:
The combined speed of the two trains is 150 mphThe speed of faster train 150 x 3/5 = 90 mphThe time taken by the trains to cover 450 miles = 3 hoursWhat is speed?Speed is the ratio of distance covered and time taken.
Speed = distance/time1)The distance covered by the two trains in 5 hours = 750 miles.
The trains move at a constant speed and their combined speed will be:
Combined speed = 750/5
Combined speed = 150 mph
2) The train heading south has a speed 1.5 times faster than the other train heading north.
Ratio of speeds = 3 : 2
Speed of faster train 150 x 3/5 = 90 mph
3) The combined speed of the trains = 150 mph
Distance to be covered = 450 miles
Time taken = 450/150
Time taken = 3 hours
In conclusion, the speed of the two trains are determined from the distance travelled and time taken.
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A rat is 24 cm long and a mouse is 8cm long. So a rat is how many times long as the mouse?
Answer:
3?
Step-by-step explanation:
is this a trick question..
24/8=3 cm
So a rat is 3 cm times as long as a mouse
I can't figure it out can you please help me
Answer:
Nah you're correct!
Step-by-step explanation:
When you add 3$ it will show as +3
Good Job!!
Answer:
tysm
Step-by-step explanation:
Solve the problem.
A landscaping team plans to build a rectangular garden that is between 240 yd² and 360 yd2 in area. For aesthetic reasons, they also want the
length to be 1.2 times the width. Determine the restrictions on the width so that the dimensions of the garden will meet the required area. Give exact
values and the approximated values to the nearest tenth of a yard.
The restrictions on the width is that it must be between 14.1 yards and 17.3 yards
How to determine the restrictions on the widthFrom the question, we have the following parameters that can be used in our computation:
Area = between 240 yd² and 360 yd²
Also, we have
Length = 1.2 times the width
This means that
l = 1.2w
The area is then calculated as
Area = lw
So, we have
Area = 1.2w²
This means that
240 < 1.2w² < 360
Divide through by 1.2
200 < w² < 300
Take the square roots
14.14 < w < 17.32
Approximate
14.1 < w < 17.3
Hence, the width must be between 14.1 yards and 17.3 yards
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i GUIVEEREEEE BRAINLILSTTT
Answer:
The answer is 26cm
Step-by-step explanation:
what I did was that I divide 130/5 which gave me 26
Answer:
F: 52 cm
Step By Step Answer:
130 divided by 5 equals 26
26 times 2 equals 52
Write an observation that you see on the graph
help pleaseee , its not a test its just a review
Answer:
[ 5 ] -350 = 10x
[ 1 ] - 5 - 2 = ∛(10x + 7) + 2 - 2
[ 6 ] - 35 = x
[ 4 ] - 343 - 7 = 10x + 7 - 7
[ 3 ] - 343 = 10x + 7
[ 2 ] -7 = ∛(10x + 7)
Explanation:
The given equation is
\(-5=\sqrt[3]{10x+7}+2\)To solve the expression, we first need to subtract 2 from both sides
\(\begin{gathered} -5-2=\sqrt[3]{10x+7}+2-2 \\ -7=\sqrt[3]{10x+7} \end{gathered}\)Then, make each side to the power of 3, so
\(\begin{gathered} (-7)^3=(\sqrt[3]{10x+7})^3 \\ -343=10x+7 \end{gathered}\)Subtract 7 from both sides
\(\begin{gathered} -343-7=10x+7-7 \\ -350=10x \end{gathered}\)Divide both sides by 10
\(\begin{gathered} -\frac{350}{10}=\frac{10x}{10} \\ -35=x \end{gathered}\)Therefore, the order of the steps is
[ 5 ] -350 = 10x
[ 1 ] - 5 - 2 = ∛(10x + 7) + 2 - 2
[ 6 ] - 35 = x
[ 4 ] - 343 - 7 = 10x + 7 - 7
[ 3 ] - 343 = 10x + 7
[ 2 ] -7 = ∛(10x + 7)
Is the following sequence a geometric sequence? If so, find its common ratio. 6,24,96,384,1536,…
Answer:
The given sequence is a geometric sequence and the common ratio is 4
Step-by-step explanation:
A geometric sequence is a sequence in which the next term is obtained by multiplying the previous term with a ratio r.
Given sequence is:
6,24,96,384,1536,…
Here
a1 = 6
a2 = 24
a3 = 96
a4 = 384
a5 = 1536
The common ratio is the ratio between consecutive terms of a geometric sequence.
If the common ratio of a sequence is same, then the sequence is a geometric sequence.
So,
\(r = \frac{a_2}{a_1} = \frac{24}{6} = 4\\r = \frac{a_3}{a_2} = \frac{96}{24} = 4\\r = \frac{a_4}{a_3} = \frac{384}{96} = 4\\r = \frac{a_5}{a_4} = \frac{1536}{384}= 4\)
As the common ratio is same, the given sequence is a geometric sequence.
Hence,
The given sequence is a geometric sequence and the common ratio is 4
lim2 +lim3 +4+4
1111
Answer:
41,120
Step-by-step explanation:
Why do we add the exponents when multiplying monomials that have the same base? Please help me thank you.
Positive whole number exponents represent repeated multiplication of the base.
For example, 2^3 means 2*2*2. We have 3 copies of the base 2 multiplied
Another example: 2^4 = 2*2*2*2 showing four copies of '2' multiplied
When multiplying 2^3 with 2^4, we have 3+4 = 7 copies of 2 multiplied overall. Notice I added the exponents. So 2^3*2^4 = 2^(3+4) = 2^7
The general rule is that a^b*a^c = a^(b+c)
When multiplying 2 monomials together like (x^(2)*x^(2). We add the exponents together because what you are actually doing is (x*x*x)*(x*x) if you attempted to add the base you would be instead add x^(3) +x^(2) and within algebra, you are taught you can't add these terms together because they both have a different degree to them. Hope that helps clarify the difference.
Which equation represents the line containing points M and N
The equation of the line is y = (-1/4)x - 3.
What is the slope of a line:A line's slope provides information about its steepness and direction. In mathematics, the increase or decrease in the y-coordinate for a commensurate change in the x-coordinate is referred to as the slope of a line.
Slope of line (m) = (y₂-y₁)/(x₂-x₁)The slope-intercept form of a line is y = mx + c
Here we have a graph that shows points M and N
From the graph the coordinates of M and N are
M(0, -3) and N(8, -5)
As we know the formula for Slope = (y₂-y₁)/(x₂-x₁)
slope of given line with M and N = (-5 -(-3))/(8-0)
= -5+3 / 8 = -2/8 = -1/4
As w know equation of the line in slope-intercept form is y = mx +c
Equation of the given line => y = (-1/4)x +c
Since the line pass through (0, -3)
=> -3 = (-1/4)(0) + c
=> c = - 3
Therefore,
The equation of the line is y = (-1/4)x - 3.
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four hundred twenty is 3/5 of what number
700 is the answer to your problem
What is the volume of the right rectangular prism, in cubic centimeters?
Vx
9 cm
3 cm
4 cm
cubic centimeters
©
Answer:
108 cm³
Step-by-step explanation:
Formula: V = w×h×l
Solution: V = whl = 4·3·9 = 108
Hence, the answer is 108 cm³
Which numbered choice shows a set of numbers whose product is -20 and whose sum is +1?
Suppose N in L(V) is nilpotent. Prove that the minimal polynomial fo N is z^m+1, where m is the length of the longest consecutive strong of 1st that appears on teh line directly aoce the diagonal in teh matrix of N with respect to any jordan basis for N.
Answer: your question is poorly written attached below is the complete and well written question
answer : The minimal polynomial has degree m + 1 hence Z^m+1
Step-by-step explanation:
Given that
N ∈ L(V) is nilpotent
attached below is the required prove
n - 3 over 10 = 3 over 5
The given expression is
\(\frac{n-3}{10}=\frac{3}{5}\)First, we multiply by 10 on each side.
\(\begin{gathered} 10\cdot\frac{n-3}{10}=\frac{3}{5}\cdot10 \\ n-3=6 \end{gathered}\)Then, we sum 3 on each side.
\(\begin{gathered} n-3+3=6+3 \\ n=9 \end{gathered}\)Therefore, the solution is 9.The
lifting force, F, exerted on an airplane wing varies jointly as the area, A, of the wing's surface and the square of the plane's velocity, v. The lift of a wing with an area
of 180 square feet is 10,500 pounds when the plane is going 140 miles per hour. Find the lifting force on the wing if the plane speeds up to 230 miles per hour. (Leave
the variation constant in fraction form or round to at least 5 decimal places. Round off your final answer to the nearest pound.) could someone please help quick. I’m stumped
Answer:
28,339 lbs
Step-by-step explanation:
If the lifting force exerted on an airplane wing varies jointly as the area of the wing's surface and the square of the plane's velocity then:
\(F \propto Av^2 \implies F=kAv^2\)
Where:
F = lifting force in pounds (lbs)A = area in square feet (ft²)v = velocity in miles per hour (mph)k = some constantGiven:
F = 10,500 lbsA = 180 ft²v = 140 mphSubstitute the given values into the found equation and solve for k (variation constant):
\(\begin{aligned}F & = kAv^2\\\\10500 & = k \cdot 180 \cdot 140^2\\10500 & = 3528000k\\k & = \dfrac{10500}{3528000}\\\implies k & = \dfrac{1}{336}\end{aligned}\)
Therefore:
\(\boxed{ F=\dfrac{1}{336}Av^2}\)
To find the lifting force (F) when the plane speeds up to 230 mph, substitute the given area of the wing (A = 180 ft²) and the new velocity (v = 230 mph) into the equation and solve for F:
\(\begin{aligned}F&=\dfrac{1}{336}Av^2\\\implies F& = \dfrac{1}{336} \cdot 180 \cdot 230^2\\& = \dfrac{1}{336} \cdot 180 \cdot 52900\\& = \dfrac{1}{336} \cdot 9522000\\& = \dfrac{9522000}{336} \\& =28339.2857...\\&=28339\;\sf lbs \; (nearest\:pound)\end{aligned}\)
Therefore, the lifting force is 28,339 lbs (nearest pound).
what is the most effluence first step to isolate the variable term on one side of this equation -9x=-4x+5
what is the equation
-8x+10y=16
-4x-5y=13
The equations give values of 1/2 and -11/8
What is simultaneous equation?you should be aware that two equations are solved simultaneously if they are solved together
The given equations are
-8x+10y=16 .............................1
-4x-5y=13 ..................................2
Multiply equation 2 by 2 to have
-8x -10y=26
Subtract equation 1 from equation 2
-8x+10y=16
-(-8x-10y=26) To get
The we have 20y = 10
Make y the subject of the relation
y=1/2
Put y = 1/2 in equation 1
-8x +10(1/2) = 16
-8x +5 = 16
-8x = 16-5
-8x = 11
Making x the subject of the formula we have
x=-11/8
In conclusion the values of x and y are -11/8 and 1/2 respectively
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1. Determine the volume of the rectangular prism in two different ways.
3/4 ft
3/8ft
3/4ft
By first method, he volume of the rectangular prism is (9/32) cubic feet.
By second method, the volume of the rectangular prism is (27/64) cubic feet, which agrees with the volume calculated using the first method.
What is volume?Volume is a measurement of the amount of space that an object occupies. It is the three-dimensional space occupied by an object. Volume is typically measured in cubic units such as cubic meters, cubic centimeters, cubic feet, and so on.
We can determine the volume of the rectangular prism in two different ways using the formula:
Volume = Length x Width x Height
First Method:
In the first method, we simply substitute the given dimensions of the rectangular prism into the formula and calculate the volume:
Volume = (3/4) ft x (3/8) ft x (3/4) ft
Volume = (9/32) ft³
Second Method:
In the second method, we can use the fact that the rectangular prism can be divided into 4 smaller rectangular prisms, each with dimensions (3/4) ft x (3/8) ft x (3/16) ft. We can calculate the volume of one of these smaller prisms and then multiply by 4 to get the total volume:
Volume of one smaller prism = (3/4) ft x (3/8) ft x (3/16) ft
Volume of one smaller prism = (27/256) ft³
Total volume = 4 x Volume of one smaller prism
Total volume = 4 x (27/256) ft³
Total volume = (27/64) ft³
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