Answer:
-256
Step-by-step explanation:
8/5 x 5/8x=8/5 (-160)
1/5 x 5x= 8/5 x (-160)
x= -8 x 32
x= -256
Answer:
X =1/256
Step-by-step explanation:
-5/8x = - 160
-5/-160 =8x
1/32 = 8x
X = 1 /256
Pls help ASAP
A=square root b+6
Answer:
\( b = {a}^{2} - 6\)
Step-by-step explanation:
\(a = \sqrt{b + 6} \\ squaring \: both \: sides \\ {a}^{2} = {( \sqrt{b + 6)} }^{2} \\ {a}^{2} = b + 6 \\ {a}^{2} - 6 = b \\ \huge \purple { \boxed{ b = {a}^{2} - 6}}\)
Answer:
b= a^2-6
Step-by-step explanation:
Check the attachment.
Hope it helps :)
Two cube-shaped boxes are stacked one above the other. The volume of one box is 512 cubic meters, and the volume of the other box is 216 cubic meters.
Answer:
Ummm. There's no question
Step-by-step explanation:
172.6 divided by 9. plz awnser in decimals. when i look it up on a calculator it said 19.1777777778
Answer:
it is 19.17
Step-by-step explanation
rounded it and its 19.17
Answer:19.17
Step-by-step explanation:
Which expression represents “x less than 9”
A. x + 9
B. 9 - x
C. x - 9
D. 9 + x
I’ll give brainliest to whoever answers first!
Answer:
9-x
Step-by-step explanation:
x less than 9, you need 9 first to have x subtracted by it. less than is subtracting.
There is considerable evidence to support the theory that for some species there is a minimum population m such that the species will become extinct if the size of the population falls below m This condition can be incorporated into the logistic equation by introducing the factor
(1-(m/p)) Thus the modified logistic model is given by the differential equation
dP/dt = kP (1- (P/K)) (1-(m/P))
where k is a constant and k is the carrying capacity.
Suppose that the carrying capacity k = 10000 the minimum population m = 800 and the constant k = 0.05 Answer the following questions.
1. Assuming P >= 0 for what values of P is the population increasing.
Answer (in interval notation): (0,10000)
2. Assuming P >= 0 for what values of P is the population decreasing.
Answer (in interval notation):
For, the given differential equation, 1) For 800 < P < 10000, the population will increase and 2) For 0 < P < 800, the population will decrease.
dP/dt = kP (1- (P/K)) (1-(m/P)) -(1)
where k is a constant and K is the carrying capacity.
Here, K = 10000, m = 800 and k = 0.05
Putting these values in Equation 1 we get,
dP/dt = 0.05P (1- (P/10000)) (1-(800/P))
1.) If dP/dt > 0 then P is increasing
As dP/dt > 0
So, 0.05P (1- (P/10000)) (1-(800/P)) > 0
Both ((10000- P)/10000) > 0 and ((P-800)/P) > 0
=> P < 10000 and P > 800
So, for 800 < P < 10000, the population will increase.
2.) If dP/dt < 0 then P is decreasing
As dP/dt < 0
So, 0.05P (1- (P/10000)) (1-(800/P)) < 0
Both ((10000- P)/10000) > 0 and ((P-800)/P) > 0
=> P > 10000 and P < 800
So, for 0 < P < 800, the population will decrease.
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house designer uses computer-aided drawings to illustrate new houses. She likes to show her drawings to clients on a large screen. She often uses the zoom-in function to enlarge the drawings so that clients can see certain features better.
Each click of the zoom-in button results in a 10 percent increase in the size of a drawing.
(a) On a certain drawing of a house, the width of the front door is 3 inches on screen, using the default settings. Make a table of values to show the width of the door on screen after each of the first four clicks of the zoom-in button. These values should be accurate to the thousandths place.
(b) Write an algebraic rule for the function that will give the display size of the door for any number of clicks.
c) To show clients a detail on the front door, she needs to zoom in so the door is approximately 3 feet wide on screen. How many clicks of the zoom-in button will be needed to make this enlargement? Explain how you got your answer.
d) Suppose one click of the zoom-out button results in a 10 percent decrease in the size of the drawing. How many clicks of the zoom-out button would it take to transform the display of the door from 3 feet wide back to a width of approximately 3 inches?
Explain how you got your answer.
(a) Clicks Width of Door (inches)
1 3.3
2 3.63
3 3.99
4 4.39
(b) The function is y = 3 (1.1)ˣ.
(c) It would take about 15 clicks of the zoom-in button to make the door approximately 3 feet wide on the screen.
(d) It would take about 12 clicks of the zoom-out button to transform the display of the door from 3 feet wide back to a width of approximately 3 inches.
(a)
Clicks Width of Door (inches)
1 3.3
2 3.63
3 3.99
4 4.39
(b) Let x be the number of clicks and y be the width of the door on the screen. Then, we can write the algebraic rule as:
y = 3 (1.1)ˣ
(c) To make the door approximately 3 feet wide on screen, we need to convert 3 feet to inches, which is 36 inches. Then, we need to solve for x in the equation:
3 (1.1)ˣ = 36
Dividing both sides by 3, we get:
(1.1)ˣ = 12
Taking the logarithm of both sides (with base 1.1), we get:
x = log(12) / log(1.1) ≈ 14.7
So, it would take about 15 clicks of the zoom-in button to make the door approximately 3 feet wide on the screen.
(d) To transform the display of the door from 3 feet wide back to a width of approximately 3 inches, we need to find the number of clicks of the zoom-out button that will result in a width of approximately 3 inches. We can use the same formula as before, but with the initial width of 36 inches (since we are zooming out):
36 (0.9)ˣ = 3
Dividing both sides by 36, we get:
(0.9)ˣ = 1/12
Taking the logarithm of both sides (with base 0.9), we get:
x = log(1/12) / log(0.9) ≈ 11.5
So, it would take about 12 clicks of the zoom-out button to transform the display of the door from 3 feet wide back to a width of approximately 3 inches.
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Which of the lines below is a line of symmetry?
how many different rectangles are there
joey makes $6.75 per hour plus 8% commission on all sales. how much did he make if he worked 38 hours and sold $1,042 worth of goods?
ANSWER
$339.86
EXPLANATION
We have that Joey makes $6.75 per hour plus 8% commission on all sales.
Joey works 38 hours.
That means that in those hours he made:
Amount = 6.75 * 38 = $256.50
He made $1042 worth of sales.
This means that he also made 8% of $1042.
That is :
\(\text{Amount = }\frac{8}{100}\cdot1042\text{ = \$83.36}\)Therefore, the total amount of money that he made is the sum of the two amounts:
Total amount = $256.50 + $83.36
Total amount = $339.86
He made a total of $339.86
Question 1 of 10
Simplify the following expression.
3x^4+2x³-5x² +4x²+6x-2x-3x^4 +7x^5-3x³
Combining like terms yields 7x⁵ - x³ - x² + 4x.
a) Find the perimeter of a rectangle whose length is 10 10²/3 cm and breadth is 6 cm.
please need fast I will make brilliant
Answer:
40
Step-by-step explanation:
P=2(l+w)
2·(10+10)
=40
reduce the fraction 3×15×24 /16×20×6 no links or files
Answer:
1 38888888889/50000000000
Step-by-step explanation:
The answer to the first part equation is 1080 ( 3*15*24). The answer to the second question ( 16*20*6) is 1920. Then you divide 1920/ 1080= 1 38888888889/50000000000
27. The average hourly wage of workers at a fast food restaurant is $7.25/hr
with a standard deviation of $0.50. Assume that the distribution is normally distributed. If a worker at this fast food restaurant is selected at random, what is the probability that the worker earns more than $8.00?*
Answer:
0.0668 = 6.68% probability that the worker earns more than $8.00
Step-by-step explanation:
When the distribution is normal, we use the z-score formula.
In a set with mean \(\mu\) and standard deviation \(\sigma\), the zscore of a measure X is given by:
\(Z = \frac{X - \mu}{\sigma}\)
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
The average hourly wage of workers at a fast food restaurant is $7.25/hr with a standard deviation of $0.50.
This means that \(\mu = 7.25, \sigma = 0.5\)
If a worker at this fast food restaurant is selected at random, what is the probability that the worker earns more than $8.00?
This is 1 subtracted by the pvalue of Z when X = 8. So
\(Z = \frac{X - \mu}{\sigma}\)
\(Z = \frac{8 - 7.25}{0.5}\)
\(Z = 1.5\)
\(Z = 1.5\) has a pvalue of 0.9332
1 - 0.9332 = 0.0668
0.0668 = 6.68% probability that the worker earns more than $8.00
Trey is buying a computer on sale. The original
price was $1,200. If the sale price is 5/6 of the
original price, how much did Trey pay for the
computer?
Which of the following is an advantage of using systematic random sampling?
Systematic random sampling reduces sampling variability.
Systematic random sampling does not require a finite population size.
Systematic random sampling could inadvertently miss patterns in the population.
Systematic random sampling uses clusters, which are close in proximity, making data collection easier.
This is a question that asks about the advantages of a systematic random sampling. Thus, we first take a look at the types of sampling, and then we see the advantage of systematic random sampling.
Samples may be classified as:
Convenient: Sample drawn from a conveniently available pool.
Random: Basically, put all the options into a hat and drawn some of them.
Systematic: Every kth element is taken. For example, you want to survey something on the street, you interview every 5th person, for example.
Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.
Stratified: Also divides the population into groups. However, then only some elements of the group are surveyed.
Systematic:
One of the bigger advantages is that the systematic sampling eliminate clusters, which means that the last option is wrong.
Inadvertently missing patterns is a problem in systematic sampling, and not an advantage, thus the third option is also wrong.
It also does not reduce sampling variability, thus the first option is wrong.
From this, it can be concluded that the correct option is:
Systematic random sampling does not require a finite population size.
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Please help me answer 5 and 6 I will mark you brainlst :)
Answer:
5. x=50 y= 150 z=30
6. x=3
Step-by-step explanation:
Many cities in California have passed Inclusionary Zoning policies (also known as below-market housing mandates) as an attempt to make housing more affordable. These policies require developers to sell some units below the market price on a percentage of the new homes built. For example, in a development of 10 new homes each with market value $850,000, the developer may have to sell 5 of the units at $180,000. Amy examine the effects of such policies on house prices and number of housing units available using 1990 (before policy impact) and 2000 (after policy impact) census data on California cities. Use means.dat for the following questions.
Using only the data for 2000, compare the sample means of LNPRICE and LNUNITS for cities with an Inclusionary Zoning policy, IZLAW=1, to those without policy, IZLAW=0. Based on these estimates, what is the percentage difference in prices and number of units for cities with and without the law? Use the simple rule that 100[ln(y1)-ln(y0)] is the approximate percentage difference between y0 and y1] Does the law achieve its purpose?
I have ran the data and SAS and attached the output below:
The percentage difference in prices and number of units for cities with and without the law is 55%.
In the given question we have to find the percentage difference in prices and number of units for cities with and without the law.
Using only the data for 2000, compare the sample means of LNPRICE and LNUNITS for cities with an Inclusionary Zoning policy, IZLAW=1, to those without policy, IZLAW=0.
In the mean housing price is
12.06 +0.27*1+0.22*1+0.33(1*1)
[In 2000, IZPi=1 and YEAR 2000i=1]
=12.06+0.27+0.33
=12.88
In 1990 the mean housing price is
12.06+0.27*1
[In 1990, IZPi=1 and YEAR 2000=0]
=12.06+0.27
=12.33
The growth of mean housing price is (12.88-12.33)*100%
=0.55*100%
=55%
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What is the value of x in the expression? 2(x + 3) = 8
Answer:
- 1
Step-by-step explanation:
Step 1:
2 ( x + 3 ) = 8
Step 2:
2x + 6 = 8
Step 3:
2x = - 2
Answer:
x = - 1
Hope This Helps :)
Answer:
x=1
Step-by-step explanation:
First, distribute the 2 into the parenthesis (multiply the 2 by x+3) to get:
2x+6=8
Now subtract 6 from each side to get:
2x=2
Finally, divide each side by 2:
x=1
14. Simon earned 400sh as a for goods sold what Commission 15,000 worth so, 600 could be his varnings for a total sale of 7,000
His total earnings for a total sale of 7,000 could be 1450sh
How to determine his earnings for a total sale of 7,000.From the question, we have the following parameters that can be used in our computation:
Salary = 400
Commission = 15%
using the above as a guide, we have the following:
Total earnings = 400 + 15% * Total sales
So, we have
Total earnings = 400 + 15% * 7000
Evaluate
Total earnings = 1450
Hence, the total earnings is 1450
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Question
Simon earned 400sh weekly for goods sold and a commission of 15%
What could be his earnings for a total sale of 7,000.
Analyze the diagram below and answer the question that follows how much larger is the value for d X then the value of y
\(\sf \large \boxed{110 ^\circ}\)
The Image given shows (vertically opposite angles) :1st equation: x + 2y = 502nd equation: x - 2y = 130Make x the subject in first equation:x + 2y = 50x = 50 - 2yInsert this in second equation:(50 - 2y) - 2y = 13050 - 2y - 2y = 130-4y = 130 - 50-4y = 80y = -20Find the value of x:x = 50 - 2yx = 50 - 2(-20)x = 90Difference between them:x - (y)90 - (-20)110caculate the following multiplication
\(67 \times 12\)
Answer:
804
Step-by-step explanation:
Just use a calculator.
A student places a block on a table and hangs one mass from the block. The student lets the block go and observes the block move towards the end of the table where the mass was located. The student then places the block on the table and hangs a second, larger mass from the opposite end of the block. The block moves in the opposite direction as the first trial. What does this experiment demonstrate? Use information from the experiment to support your answer.
What the given experiment demonstrates is; The magnitude of acceleration according tp newton's second law of motion
How to identify the magnitude of acceleration?Newton's second law of motion states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object.
This law basically establishes a relationship between the net force and the acceleration, which is expressed as;
∑ F = m a
where;
∑F is the sum of the external forces
m the mass of the body
a is the acceleration of the body
The initial situation in the question shows the block and a baking mass. This means that an acceleration is created towards the hanging mass expressed as;
W₁ = M₁ g
F = ma
Thus;
M₁g = m a
a = (M₁g/m)
where;
W₁ is the weight of the body
M₁ is the mass of the body hanging under the acceleration of gravity.
For the second case, there are two masses, with one on each side, and so we have;
∑ F = W₁ - W₂
∑F = (M₁ - M₂) g
Using Newton's second law of motion gives us;
(M₁ - M₂ )g = ma
a = (M₁ - M₂ )mg
Thus, the acceleration depends on the difference of the hanging masses which proves Newton's second law of motion.
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what is the equation of the line that is parallel to the line y=3x-11 and passes through the point (1,-6) A. y=3x-9 b. y=3x+6 c. y= -1/3x -17/3 d. y=-3x-3 NEED HELP FAST!!!
Answer:
b
Step-by-step explanation:
-3x is the rate of change, so minus 3X= -17/3
Question 14 (1 point)
Chris sells computer equipment for his company. He receives a base pay of $300
plus commission on his sales. He receives 10% for the first $5000 in sales and 15%
anything over $5000.
Last week, he sold $17000 in computer equipment. Find his gross pay.
Round to the nearest whole dollar.
For your answer, do NOT include symbols, commas, words, etc.
HELP PLS
Chris' gross pay for the week after selling computer equipment worth $17,000 is $2,600.
How is the gross pay determined?The gross pay is the addition of the base pay and the sales commission.
The sales commission is graduated and computed as follows:
Chris' base pay = $300
Sales Commissions:
First $5,000 = 10%
Above $5,000 = 15%
Last week's sales = $17,000
10% Commission = $500 ($5,000 x 10%)
15% Commission = $1,800 ($17,000 - $5,000 x 15%)
Total Commission = $2,300
Gross pay = Base Pay + Commission
= $2,600 ($300 + $2,300)
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In fractions, what does the "^" symbol stand for? Such as in 1200 x (1.0041666667) ^ 48
Answer: The caret symbol (^) represents a power.
Step-by-step explanation:
In short, a power or an exponent indicates the number of times a number needs to be multiplied by itself. The caret can be used to represent a number that is to be used as an exponent.
For example, 5^2 is the same thing as \(5^2\). \(5^{2} =\) 5 x 5 = 25.
In the example you provided, 1200 x (1.0041666667) ^ 48, the caret means that you need to raise 1.0041666667 to the power of 48.
\(4√3\)what is equivalent to 4 sqrt 3
The equivalent expression to 4√3 is √48 or 6.928.
What is the equivalent expression?
An equivalent expression is an expression that has equal value to the original given expression.
From the given expression, we can determine its equivalent expression as follows;
The given expression = 4√3
We can square 4 and multiply it by 3 and enclose all with the square root.
4√3 = √(4² x 3 )
= √ ( 16 x 3 )
= √ ( 48 )
= 6.928
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Solve for angles x and y in the triangle below. Round your angle to the nearest whole degree.
Solve for both x and y
\(\tan(y )=\cfrac{\stackrel{opposite}{6}}{\underset{adjacent}{4}} \implies \tan( y )= \cfrac{3}{2} \implies \tan^{-1}(~~\tan( y )~~) =\tan^{-1}\left( \cfrac{3}{2} \right) \\\\\\ y =\tan^{-1}\left( \cfrac{3}{2} \right)\implies y \approx 56.31^o \\\\[-0.35em] ~\dotfill\\\\ \tan(x )=\cfrac{\stackrel{opposite}{4}}{\underset{adjacent}{6}} \implies \tan( x )= \cfrac{2}{3} \implies \tan^{-1}(~~\tan( x )~~) =\tan^{-1}\left( \cfrac{2}{3} \right) \\\\\\ x =\tan^{-1}\left( \cfrac{2}{3} \right)\implies x \approx 33.69^o\)
Make sure your calculator is in Degree mode.
make the subject x of the formula y = 7x + 4
Answer:
\(x = \frac{y - 4}{7}\)
Step-by-step explanation:
\(y = 7x + 4 \\\\y - 4 = 7x\\\\\frac{y - 4}{7} = \frac{7x}{7}\\ \\ \frac{y - 4}{7} = x\)
Need help............
Answer:
i would say C
Step-by-step explanation:
I need some help!! I wil try to give brainliest!!!