Answer:
1
Step-by-step explanation:
The two equations have one solution. This is because when the two equations are graphed, the lines intersect in only one point. Therefore, the system only has one solution.
What is the percent of increase from 40 to 74?
The percentage of increase is given by the equation A = 85 %
What is Percentage?A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, %
The difference between an exact value and an approximation to it is the approximation error in a data value. Either an absolute error or a relative error might be used to describe this error.
Percentage change is the difference between the measured value and the true value , as a percentage of the true value
Percentage change =( (| Measured Value - True Value |) / True Value ) x 100
Given data ,
Let the percentage change be represented as P
Now , the equation will be
The initial value be represented as A = 40
The final or increased value be B = 74
So , the percentage change P = [ ( | A - B | ) / A ] x 100
Substituting the values in the equation , we get
The percentage change P = [ ( 34 ) / 40 ] x 100
The percentage change P = 0.85 x 100
The percentage change P = 85 %
Hence , the percentage change is 85 %
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What is the slope of the line through (3, 9) and (x, y) for y = x² and x = 2.97? x = 3.001? x = 3 + h? What happens to this last slope when h is very small (close to 0)? Sketch the graph of y = x² for x near 3.
When h is very small, then the slope would be equal to 6
How to solve for the slopeWe have
m = y2 - y1 / x2 - x1
where 2.97² - 3² / 2.97 - 3
we would have
-0.1791 / -0.03
m = 5.97
We have to do the same for x = 3.001
3.001² - 3² / 3.001 - 3
m = 6.001
finally we have to solve for x = 3 + h
m = [tex]\frac{(3 + h)^2-(3)^2}{3+h-3}[/tex]
m = [tex]\frac{9+h^2+6h-9}{h}[/tex]
m = [tex](\frac{h}{h})*(\frac{h+6}{1} )[/tex]
m = h + 6
if h is close to 0 then m = 6
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Combine like terms 5n+8+2n-1
write a function which takes some number of degrees, positive or negative, and returns the reduced equivalent in the interval [ 0 , 360 ) [0, 360) [0,360). make sure your function is named deg reduce. g
Below is a function which takes some number of degrees, positive or negative, and returns the reduced equivalent in the interval [0 , 360 )
How to write a function which takes some number of degrees, positive or negative?Below is a Python function that takes an angle in degrees and returns its equivalent in the interval [0, 360):
def deg_reduce(degrees):
return degrees % 360
The % operator in Python is the modulo operator, which returns the remainder of a division. By using degrees % 360, the function returns the reduced equivalent of degrees in the interval [0, 360).
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How do I Solve for x
Answer:
Step-by-step explanation:
Assuming the sides are equal:
-3x - 6 = 4x + 15
-3x - 6 -15 = 4x + 15 - 15
-3x - 21 = 4x
-3x + 3x - 21 = 4x + 3x
-21 = 7x
-21/7 = 7x /7
-3 = x
MARBLES Jerod has a bag of 20 marbles containing 12 red, 6 green, and 2 blue marbles. What is the probability that Jerod selects two green marbles at random from the bag
Answer:
Step-by-step explanation:
Total marbles = 0
Number of green marbles = 6
so,
Probability of getting 2 green marbles = 2/20 = 1/10
The probability that Jerod selects two green marbles at random from the bag is 1/10
What is the probability?Probability refers to a possibility that deals with the occurrence of random events.
The probability of all the events occurring need to be 1.
P(E) = Number of favorable outcomes / total number of outcomes
We are given that Jerod has a bag of 20 marbles containing 12 red, 6 green, and 2 blue marbles.
Total marbles = 0
Number of green marbles = 6
Therefore,
Probability of getting 2 green marbles ;
= 2/20 = 1/10
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Next time, the rabbit from the previous problem started at 10 where on the number line can he be after the same three jumps?
This is the previous problem: A rabbit started at point 0 and made 3 jumps a jump of 4 units then a jump of 2 units and then a jump of 1 unit we do not know the direction of either jump where on the line could the rabbit be.
After the 3 jumps a jump of 4 units then a jump of 2 units and then a jump of 1 unit is at 20 on number line.
What is number line?A number line is a visual representation of numbers on a straight line. This line is used to compare numbers that are placed at equal intervals on an infinite line that extends on both sides, horizontally or vertically.
A rabbit started at point 0 and made 3 jumps a jump of 4 units then a jump of 2 units and then a jump of 1 unit we do not know the direction of either jump where on the line could the rabbit be.
Now, Rabbit is at 10 on number line
If rabbit made same jumps, rabbit will be at
10+3+4+2+1
= 20
Therefore, after the 3 jumps a jump of 4 units then a jump of 2 units and then a jump of 1 unit is at 20 on number line.
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May someone help me with these questions. (they are the pictures)
Answer:
For the first picture:
[tex]\frac{1}{3} < \frac{2}{6}[/tex] is false because [tex]\frac{1}{3} x 2 = \frac{2}{6}[/tex]
[tex]\frac{1}{3} > \frac{2}{6}[/tex] is also false because [tex]\frac{1}{3} x 2 = \frac{2}{6}[/tex]
[tex]\frac{1}{3} =\frac{2}{6}[/tex] is true, so the 3rd is the correct option.
For the second picture:
[tex]\frac{3}{6} ?\frac{1}{4}[/tex] using the LCM method, of 6 and 4 = 12
then it will be [tex]\frac{6}{12} > \frac{3}{12}[/tex] so the symbol will be > (1st option)
For the third picture:
[tex]\frac{2}{5} =\frac{1}{2}[/tex] is false
[tex]\frac{2}{5} < \frac{1}{2}[/tex] is true, so the 2nd is the correct option.
[tex]\frac{2}{5} > \frac{1}{2}[/tex] is false
For the forth picture:
The correct answer is the 3rd option ([tex]\frac{5}{8} > \frac{1}{2}[/tex])
Have a wonderful day! :-)
A dice is rolled 4 times. What is the probability of showing a 3 on every roll?
Answer:
there is a 1 in 24 chance
Step-by-step explanation:
1(3)/6x4= 1/24
A die is tossed 960 times and it falls with 5 upwards 184 times. Is the die unbiased at a level of significance of 0.01
Answer:
838,200
Step-by-step explanation:
960x5x184 =838,200
I’m having a hard time can somebody help please
The capacity required for a kitchen size, given the additional BTU recommended, is A. 10, 000 BTUs.
How to find the capacity ?The area of the kitchen would be:
= Length x Width
= 16 x 10
= 160 ft ²
At this capacity, it means that the recommended capacity would be over 5, 000 BTUs which is for 150 ft² kitchens.
The next recommended capacity is 6, 000 BTUs and with a kitchen requiring 4, 000 BTUs over the capacity, the BTUs is :
= 6, 000 + 4, 000
= 10, 000 BTUs
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j=JUST HELP MY FAMILY IS MAD partition and shade to show
5 over 7
.
The partition and shade to show 5/7 is added as an attachment
How to make the diagramFrom the question, we have the following parameters that can be used in our computation:
partition and shade to show 5/7
To do this, we can make use of a tape diagram
Such that the size of each partition is equal
Using the above as a guide, we have the following:
5/7 implies that we create 7 partitions and shade 5 sections
Next, we make the tape diagram (see attachment)
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for what period of yime is the projectile at least 240 feet of the ground.
The period of time during which the projectile is at least 240 feet above the ground is 3 seconds <= t <= 5 seconds.
What is time of projectile motion?
Vertical motion totally determines the time for projectile motion.
The height of the projectile above the ground after t seconds is given by s = -16t^2 + 128t. To find the period of time during which the projectile is at least 240 feet above the ground, we need to find the values of t for which s >= 240.
Solving for t:
-16t^2 + 128t >= 240
-16t^2 + 128t - 240 >= 0
t^2 - 8t + 15 >= 0
(t - 5)(t - 3) >= 0
So t must be between 3 and 5 seconds, inclusive.
Therefore, the period of time during which the projectile is at least 240 feet above the ground is 3 seconds <= t <= 5 seconds.
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Consider the accompanying matrix as the augmented matrix of a linear system. State in words the next two elementary row operations that should be performed in the process of solving the system.1 -5 3 0 -20 3 -7 0 40 0 1 2 -20 0 4 6 0
The next two elementary row operations that should beRow4=Row4-4*Row3. This will make the element zero. The second step is we divide 8 by -2 to get 4th unknown as d=8/(-2)=-4.
What is matrix?A collection of numbers lined up in rows and columns to form a rectangular array is called a matrix. The elements, or entries, of the matrix are the integers. In addition to numerous mathematical disciplines, matrices find extensive use in the fields of engineering, physics, economics, and statistics. In computer graphics, where they have been used to describe picture rotations and other transformations, matrices have vital applications as well.
Presently 3rd element in Row 3 is the pivot element,
For solving the matrix, we need to make 3rd element of fourth row as zero,
Hence, we do the operation Row4=Row4-4*Row3.
This will make the element zero.
The second step is we divide 8 by -2 to get 4th unknown as d=8/(-2)=-4.
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1
Unless otherwise informed, report all answers in standard notation to 3 significant figures.
1 point
How many Gg/hr are there in 8.34 x 10^6 ton/wk?
There are 0.0496 Gg/hr in 8.34 x 10^6 tons/week
How to determine the number of Gg/hr in ton/wk?To convert from tons/week to Gg/hr:
you need to divide the number of tons by the number of hours in a week and then multiply by 1 Gg/ton.
There are 168 hours in a week, so:
8.34 x 10^6 ton/wk / 168 hrs/week = 49642.85 ton/hr
And 1 Gg = 1,000,000 ton, so:
49642.85 ton/hr * 1 Gg/1,000,000 ton = 0.0496 Gg/hr
So, 8.34 x 10^6 tons/week is equivalent to 0.0496 Gg/hr.
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fine the equation of the line through the point (2,-6) that is parallel to the line with the equation -14x+3y=-4
Answer:
Step-by-step explanation:
To find the equation of a line that is parallel to another line, we can use the same slope for both lines. The slope of the line with the equation -14x + 3y = -4 can be found by rearranging the equation into slope-intercept form:
y = -14/3x - 4/3
The slope of this line is -14/3.
To find the equation of a line that passes through the point (2,-6) with the same slope, we can use the point-slope form of a line:
y - y1 = m(x - x1)
Where:
m is the slope of the line
(x1, y1) is a point on the line
Plugging in the values from the given information:
m = -14/3
x1 = 2
y1 = -6
y - (-6) = -14/3 (x - 2)
y + 6 = -14/3x + 14
So the equation of the line through the point (2,-6) that is parallel to the line with the equation -14x + 3y = -4 is:
y + 6 = -14/3x + 14.
A farmer places beehives containing bees in her orchard to pollinate the plants. The table
below shows the ratio of the number of beehives to the number of acres in the orchard.
BEEHIVES PER ACRE:
Number of beehives:
3 9 12 18
Number of acres:
8 24 32 ?
If the bees pollinate the plants at a constant rate, how many acres will be pollinated by the
bees in 18 beehives?
A. 38
B. 40
C. 44
D. 48
The number of acres that will be pollinated by the bees in 18 beehives is given as follows:
D. 48.
What is a proportional relationship?A proportional relationship is defined as follows:
y = kx.
In which k is the constant of proportionality.
The variables for this problem are given as follows:
x: number of beehives.y: number of acres.From the table, the constant is obtained as follows:
3k = 8
k = 8/3.
Hence the equation is of:
y = 8x/3.
The number of acres that will be pollinated by 18 beehives is then given as follows:
y = 8(18)/3
y = 48 acres.
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Answer: D. 48.
Step-by-step explanation:
because the table shows 3k = 8k = 8/3. y = 8x/3. So then it turns into y = 8(18)/3 = y = 48 acres.
Q1. If the facility treats 16,000,000 liters of water per day, and 25,000 milligrams of ozone is used for processing the water, what is the ratio of ozone used to the total amount of water treated per day?
Answer:
The ratio of ozone used to the total amount of water treated per day can be calculated as follows:
Ozone used = 25,000 mg
Amount of water treated = 16,000,000 liters = 16,000,000 x 1000 ml = 16,000,000 x 1000 x 1000 mg = 16,000,000,000,000 mg
Ratio of ozone used to water treated = 25,000 / 16,000,000,000,000 = 1.5625 x 10^-11
So, the ratio of ozone used to the total amount of water treated per day is approximately 1.5625 x 10^-11.
[tex]15.625*10^{-4}[/tex] miligrams of ozone / liter of water.
Step-by-step explanation:1. Identify the data.16,000,000 liters of water
25,000 milligrams of ozone
2. Create the ratio of ozone.A ratio is basically telling how much of one thing corresponds to a unit of another thing. Hence, let's express this as a division in the following fashion:
[tex]\frac{25,000}{16,000,000} =\\ \\\frac{0.0015625}{1} =\\ \\\frac{15.625*10^{-4} }{1}[/tex]
3. Express as a ratio of units.[tex]15.625*10^{-4}[/tex] miligrams of ozone / liter of water.
Please help due tonight
Answer:
[tex]x=16\sqrt{30}; \ y=16\sqrt{10}.[/tex]
Step-by-step explanation:
1. if the angles in the given triangle are 30°-60°-90°, then
[tex]2. \ x=32\sqrt{10} *cos[30 к]; \ = > \ x=32\sqrt{10} *\frac{\sqrt{3}}{2} =16\sqrt{30};[/tex]
[tex]3. \ y=0.5*32\sqrt{10}=16\sqrt{10};[/tex]
4. finally, x=16√[30]; y=16√[10].
Find the area, apothem and each side of this figure. Round your answers to the nearest tenth.
Each side of the given figure measures 2yd and the area of the polygon is A = 8 + 8√2 square units, and apothem is 8 + 8√2 units.
What is octagon?A polygon is a closed, two-dimensional (2-D) figure formed of segments of straight lines. The octagon is an 8-sided polygon in geometry. An octagon is referred to as a regular octagon if all of its sides and angles have equal lengths. In other words, an ordinary octagon has congruent sides. In a standard octagon, the inside angle is 135 degrees, and the outer angle is 45 degrees. A preset set of formulas known as the "octagon formula" can be used to calculate the area and perimeter of a regular octagon.
Given that the perimeter of the octagon is 16yd.
The perimeter is the sum of all the segments or boundaries. So, the perimeter of the octagon is:
P = 8s
16 = 8s
s= 2yd.
The area of a regular octagon is given as:
A = 2a²(1 + √2)
A = 2(2)²(1 + √2)
A = 8 + 8√2
The apothem is given by:
A = 1/2 (s)(a)
8 + 8√2 = 1/2 (2)(a)
a = 8 + 8√2
Hence, each side of the given figure measures 2yd and the area of the polygon is A = 8 + 8√2 square units, and apothem is 8 + 8√2 units.
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A family spends $51,000 a year for living expenses. If prices increase 5 percent a year for the next two years, what amount will the family need for their annual living expenses after two years?
At the end of two years if prices increase 5 percent the family needs to spend a total of $56227.50 on their annual living expenses.
What are percentage?A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100. The proportion therefore refers to a component per hundred. Per 100 is what the word percent means. The letter "%" stands for it.
Given that, the family spends $51,000 a year.
The first increase of 5% is given as:
A = (51000) (1 + 5/100)
A = 51000 (105/ 100) = 53550
For the second year increase:
A = 53550 (105 / 100) = 56227.50
Hence, at the end of two years the family needs to spend a total of $56227.50 on their annual living expenses.
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Sam counted 14 blinks in 20 seconds. How many times does Sam blink in a day if we assume he sleeps for eight hours.
Answer:
35280 blinks
Step-by-step explanation:
1 day = 24 hours
24 - 8 = 16 hours
1 hour = 3600 seconds
16 hours = 50400 seconds
Now we have to find how many blink in 1 second
14 divided by 20 = 0.7 blink in 1 second
Now we take
0.7 times 50400 = 35280 blinks
So, Sam blink 35280 times a day
Given circle B, with a radius of 16 cm and regular of 7 sides polygon inscribed inside the circle, calculate the area of the segment of the circle.
step by step
Myron ran three miles for his workout today. He ran the first mile in 6.75 minutes, the second mile in 7.1 minutes, and the third mile in 7.25 minutes. What was his total time for the three miles?
Answer:
21.1 minutes
Step-by-step explanation:
Time for first mile + second + third
6.75+ 7.1+ 7.25
21.1 minutes or (21.1 * 60) seconds = 1266 seconds
it takes 25 people 90 days to do a job. how many people can do that job in 15 days?!
Answer:
25people =90days
? =15days
cross multiply
25×15÷90
=375÷90
=4.16666666
approximately =4.2
150 people needed to complete the work in 15 days.
Given that 25 people take 90 days to do a job.
Relation between number of people and number of days needed to complete a work when work quantity is fixed is inversely proportional.
That is, if number of people is less then the work needs more time and vice versa.
To complete a job in 90 days the number of people required is = 25
To complete that same job in 1 days the number of people needed is = 25 * 90 = 2250
To complete the same job in 15 days the number of people needed is = 2250/15 = 150.
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3. A car wheel with a diameter of 18 inches spins at the rate of 10 revolutions per second. (i) What
is the car's angular speed in radians per hour? (ii) What is the car's linear speed in miles per
hour?
Answer:
i- 72000 * π radians per hour, ii- 65,940 miles per hour.
Step-by-step explanation:
(i) To find the car's angular speed in radians per hour, we need to find the number of radians the wheel rotates in one revolution, then multiply that by the number of revolutions per second. The number of radians in one revolution is equal to the circumference of the wheel divided by the wheel's radius. The wheel's circumference is given by 2 * π * r, where r is the wheel's radius (18 inches / 2 = 9 inches). Then, the number of radians per revolution is:
2 * π * r / r = 2 * π
So, the number of radians per second is:
2 * π * 10 revolutions per second = 20 * π radians per second
Finally, to convert radians per second to radians per hour, we multiply by 3600 (the number of seconds in an hour):
20 * π * 3600 seconds/hour = 72000 * π radians per hour
(ii) To find the car's linear speed in miles per hour, we need to multiply the wheel's circumference by the number of revolutions per hour. The wheel's circumference is given by 2 * π * r, so the linear speed is:
2 * π * r * 10 revolutions per second * 3600 seconds/hour = 18 * π * 10 * 3600 miles per hour
The answer is approximately equal to 65,940 miles per hour.
Caitlin, a client of yours since you opened your practice, has become very intrigued by investing in the stock market. She has interest-bearing securities and dividend-paying stocks. She also owns U.S. Securities. She is considering selling $500,000 in stocks. She does not know if she should sell the additional stock for a loss to help offset the stock sale of $500,000. Caitlin called you to ask what tax consequences the interest and dividends will have along with the stock sale. What tax advice would you offer to Caitlin in planning for this situation?
a. Her AGI is under the assumption she sells all of the stock now after receiving $1,000 dividends from the stock. is $34500.
b. The computation under the assumption she sells only half of the stock this year and also receives $1,000 in dividends from the stock is $21000.
What is a stock?All of the shares used to divide ownership of a corporation or company constitute stock in the financial world. A single share of stock represents a fractional ownership interest in the company based on the total number of shares.
Compute her AGI under the assumption she sells all of the stock now after receiving $1,000 dividends from the stock.
This will be the addition of the taxable pension, half of the social security benefits, stock gain, and the dividend received. This will be:
= $10000 + ($7000 × 50%) + $20000 + $1000
= $10000 + $3500 + $20000 + $1000.
= $34500
The computation is under the assumption she sells only half of the stock this year and also receives $1,000 in dividends from the stock.
= $10000 + $10000 + $1000
= $21000
The correct question is given below.
Lucia is a 69-year-old single individual who receives a taxable pension of $10,000 per year and Social Security benefits of $7,000. Lucia is considering the possibility of selling stock she has owned for years and using the funds to purchase a summer home. She will realize a gain of $20,000 when she sells the stock, which has been paying $1,000 of dividends each year. Lucia says her brother recommended that she sell half the stock this year and half next year because selling all of the stock at once would affect the tax treatment of her Social Security benefits.
a) Computer her AGI under the assumption she sells all of the stock now after receiving $1,000 dividends from the stock.
b) Repeat the computation under the assumption she sells only half of the stock this year and also receives $1,000 in dividends from the stock.
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If four loaves of bread costs $8, a loaf of bread and a bag of oranges costs $8, and a loaf of bread, two bags of oranges and a basket of apples costs $19, what is the cost of a basket of apples?
EQUATION OF A STRAIGHT LINE!!
Answer:
Below
Step-by-step explanation:
y - y1 = m ( x - x1 ) is point slope form of a line m = slope
For point ( -1,3) :
y-3 = 3 (x- -1)
y -3 = 3x + 3 add 3 to both sides
y = 3x + 6 The underlined equations are the same line just different forms....you'll need to pick the one you need
a cone has a volume of 8 pi cubic inches what is the radius of the cone?
Answer:
[tex]r = \sqrt{\frac{24}{h}}[/tex] inches
Step-by-step explanation:
Volume of a cone = [tex]\frac{1}{3} \pi r^{3}h[/tex]
where: r = radius of cone
h = perpendicular height of the cone
Provided volume of cone = 8π cubic inches
[tex]8\pi = \frac{1}{3}\pi r^{2} h[/tex]
Cross multiplication is applied and 'r' is isolated:
[tex]3(8\pi ) = \pi r^{2} h[/tex]
[tex]24\pi =\pi r^{2} h[/tex]
[tex]r^{2} h = \frac{24\pi}{\pi}[/tex]
[tex]\pi[/tex] in the numerator and denominator cancel each other out completely:
[tex]r^{2} h = 24[/tex]
[tex]r^{2} = \frac{24}{h}[/tex]
Taking the square root on both sides of the equation in order to get rid of the square:
[tex]r = \sqrt{\frac{24}{h}}[/tex] inches