Answer:
0.038
Step-by-step explanation:
Can you please help me?
if p=(3,1) and Q=(-3,-7), find the equation of the circle that has segment PQ as the diameter (x-{?})^2+(y-{?})^2={?}
Answer:
x² + (y + 3)² = 25
Step-by-step explanation:
the centre (C) of the circle is at the midpoint of the diameter.
using the midpoint formula
midpoint = ( \(\frac{x_{1}+x_{2} }{2}\) , \(\frac{y_{1}+y_{2} }{2}\) )
with (x₁, y₁ ) = P (3, 1 ) and (x₂, y₂ ) = Q (- 3, - 7 )
C = ( \(\frac{3-3}{2}\) , \(\frac{1-7}{2}\) ) = ( \(\frac{0}{2}\) , \(\frac{-6}{2}\) ) = (0, - 3 )
the radius r is the distance from the centre to either P or Q
using the distance formula
r = \(\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }\)
with (x₁, y₁ ) = C (0, - 3 ) and (x₂, y₂ ) = P (3, 1 )
r = \(\sqrt{(3-0)^2+(1-(-3)^2}\)
= \(\sqrt{3^2+(1+3)^2}\)
= \(\sqrt{3^2+4^2}\)
= \(\sqrt{9+16}\)
= \(\sqrt{25}\)
= 5
the equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k ) are the coordinates of the centre and r is the radius
here (h, k ) = (0, - 3 ) and r = 5 , then
(x - 0 )² + (y - (- 3) )² = 5² , that is
x² + (y + 3)² = 25
Have a great wonderful fantastic amazingggg dayyyy!!!
Answer: 176m^2
Step-by-step explanation:
The smaller rectangle is taking up space among the larger one. So in order to find the area of this shaded region, you need to subtract that smaller one from the larger one.
12 x 15 = 180
1 x 4 = 4
180 - 4 = 176m^2
Answer:
44
Step-by-step explanation:
To start you have to calculate the perimeter of the white box. 1 times 2 is 2. 4 times two is 8. 8 plus 2 is 10. Then you have to find the perimeter of the purple box. 12 times 2 is 24. 15 times 2 is 30. 24 plus 30 is 54. After that you have to subtract to get the final answer. 54 minus 10 in 44. 44 is the final answer.
Does anyone know the correct answer?
Answer:
270
Step-by-step explanation:
Please help!!! Angles!
Answer:
m∠JKM = 63°
m∠MKL = 27°
Step-by-step explanation:
Since ∠JKL is a right angle. This means that by summing up both m∠JKM and m∠MKL will result in the same as ∠JKL figure. Thus, m∠JKM + m∠MKL = m∠JKL which is 90° by a right angle definition.
\(\displaystyle{\left(12x+3\right)+\left(6x-3\right) = 90}\)
Solve the equation for x:
\(\displaystyle{12x+3+6x-3 = 90}\\\\\displaystyle{18x=90}\\\\\displaystyle{x=5}\)
We know that x = 5. Next, we are going to substitute x = 5 in m∠JKM and m∠MKL. Thus,
m∠JKM = 12(5) + 3 = 60 - 3 = 63°
m∠MKL = 6(5) - 3 = 30 - 3 = 27°
remember that percentages are based on one-hundredths. the value 100% one-hundredths or 100/100. the value of 50% equals 50/100 which can also be written as a decimal 0.50%. The value of 5% equals 5/100 or 0.005. Convert the following percentages into one-hundredths and then into a decimal: 75%, 20%, 0.8%?
Answer:
75/100, 20/100, 8/1000
0.75% , 0.2% or 0.20%, 0.008%
Step-by-step explanation:
im sorry if its wrong,its been a while since i did percentages
(2/5 + 4/9 - 2/3) multiplied by 5/2 - 3/5
Answer:
Step-by-step explanation:
Least common denominator of 5 , 9 , 3 = 45
\(\frac{2}{5}+\frac{4}{9}-\frac{2}{3}=\frac{2*9}{5*9}+\frac{4*5}{9*5}-\frac{2*15}{3*15}\\\\=\frac{18}{45}+\frac{20}{45}-\frac{30}{45}\\\\= \frac{18+20-30}{45}\\\\= \frac{8}{45}\\\\\)
Least common denominator of 2, 5 = 10
\(\frac{5}{2}-\frac{3}{5}=\frac{5*5}{2*2}-\frac{3*2}{5*2}\\\\=\frac{25}{10}-\frac{6}{10}\\\\=\frac{25-6}{10}\\\\= \frac{19}{10}\)
\((\frac{2}{5}+\frac{4}{9}-\frac{2}{3})*(\frac{5}{2}-\frac{3}{5})=\frac{8}{45}*\frac{19}{10}\\\\= \frac{4*19}{45*5}\\\\= \frac{76}{225}\)
What is the slope of the line perpendicular to y 1 4x 10?
The slope of the line perpendicular to the given line is equal to -4/1.
The equation is in the form y=mx+b
so, y=(1/4)x -10
First, find the slope of the line which is the value being multiplied by x. Therefore m=1/4
To find the slope perpendicular to the line you must find the negative reciprocal of 1/4. (Which just means change the sign then flip the fraction)
Multiplying 1/4 by -1 which is -1/4
Then flip the fraction and keep the sign with the numerator to find the reciprocal. So now it’s -4/1
Thus, the slope of the line perpendicular to the given line is equal to -4/1.
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The equation is in the form y=mx+b
so, y=(1/4)x -10
First, find the slope of the line which is the value being multiplied by x. Therefore m=1/4
Multiplying 1/4 by -1 which is -1/4
Then flip the fraction and keep the sign with the numerator to find the reciprocal. So now it’s -4/1
What does 5(3x+y) equal?
Brainly this is mathematics so don't delete it
Answer:
it's answer is 15x+5y..
Answer:
The answer is
Step-by-step explanation:
5(3x+y)
15x+5y
To transmit information on the internet, large files are broken into packets of smaller sizes. Each packet has 1,500 bytes of information. An equation relating packets to bytes of information is given by b = 1,500p where p represents the number of packets and b represents the number of bytes of information. How many packets would be needed to transmit 30,000 bytes of information?
Answer:
45,000,000 information could be transmitted in 30,000 packets
Explaination:
b=1500p
p= 30,000
so,
b= 1500 x 30000 = 45,000,000
A letter that is used in place of the unknowable value is called a variable.
If 20 packets exists required to transmit 30,000 bytes of information.
What is meant by equation?The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. In mathematics, an equation is an expression or a statement that consists of two algebraic expressions that have the same value and are separated from one another by the equal symbol. It is an otherwise stated proposition that has been mathematically quantified.
A numerical statement with a variable in place of an unknown value is called an equation. A letter that is used in place of the unknowable value is called a variable.
Each packet has 1500 bytes of information
The amount of packets needed for 1 byte = 1/1500
Given:
number of bytes = 30,000
number of packets needed = 30000/1500 = 20
Therefore, 20 packets exists needed to transmit 30,000 bytes of information.
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What is the measurement shown in the figure that is 6.9 in?
Answer:
The measurement shown in the figure is the slant height of the pyramid.
select ALL expressions that are equal to 8 ( 2 - 4 r ) .
Answer:
16 - 32x
Step-by-step explanation:
8 (2 - 4x)
= (2 • 8) (8 • - 4x)
= 16 - 32x
A rectangle has an area of 420m2.
One of the sides is 5m in length.
Work out the perimeter of the rectangle.
a hiker leaves her camp and walks 3.5 km in a direction of 55° south of west to the lake. after a short rest at the lake, she hikes 2.7 km in a direction of 16° east of south to the scenic overlook. what is the magnitude of the hiker’s resultant displacement? round your answer to the nearest tenth. km what is the direction of the hiker’s resultant displacement? round your answer to nearest whole degree. ° south of west
The hiker's resultant displacement can be calculated using vector addition. By considering the magnitudes and directions of the individual displacements, the resultant displacement can be determined.
The magnitude of the resultant displacement is approximately 3.8 km, rounded to the nearest tenth. The direction of the resultant displacement is approximately 7° south of west, rounded to the nearest whole degree.
To find the resultant displacement, we can break down the hiker's displacements into their respective components. The first displacement of 3.5 km at an angle of 55° south of west can be represented as -3.5 km westward and -3.5 km × sin(55°) = -2.9 km southward. The second displacement of 2.7 km at an angle of 16° east of south can be represented as +2.7 km southward and +2.7 km × sin(16°) = +0.7 km eastward.
To find the resultant displacement, we add the components in each direction separately. The westward components add up to -3.5 km, and the southward components add up to -2.9 km + 2.7 km = -0.2 km. Using the Pythagorean theorem, the magnitude of the resultant displacement is √((-3.5 km)² + (-0.2 km)²) ≈ 3.8 km (rounded to the nearest tenth).
To determine the direction of the resultant displacement, we can use trigonometry. The angle θ can be calculated as arctan((-0.2 km)/(-3.5 km)) ≈ 7°. Since the angle is measured south of west, the direction of the resultant displacement is approximately 7° south of west (rounded to the nearest whole degree).
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Can you help me graph y = -7x - 1 ?
can i plz get some help with this!
its about finding the conjecture
Answer:
3-they are cubes of consecutive natural numbers
1 cube is 1
2 cube is 8
3 cube is 27
and so on...
let me know if you're asking fourth one or third one
Which fraction has a numerator of 9 and a denominator of 13? 13/9 or 9/13
Answer:
9/13, The numerator is always on top and the denominator is always on the bottom.
Rachael bought a snorkel and ear plugs for shallow diving. The snorkel cost \$27.69 , and the ear plugs cost \$2.19 . The sales tax of both items was Rachael paid with 2 twenty-dollar bills. How much change did she receive?
Answer:
The answer is 10.12
Step-by-step explanation:
You add both numbers together and then subtract the sum to the 40 dollars
Jaylon makes $57,000 and is getting annual raises of $2,500. Anita makes $64,000 and is getting annual raises of $1,500. How many years, y, will it take for Jaylon and Anita to make the same amount of money?
A. 121
B. 7
C. 1.75
D. 30.25
Gas Mileage. Based on tests of the Chevrolet Cobalt, engineers have found that the miles per gallon in highway driving are normally distributed, with a mean of 32 MPG and a standard deviation of 3.5 MPG. a) What is the probability that a randomly selected Cobalt gets more than 34 MPG? b) Suppose that 10 Cobalts are randomly selected and the MPG for each car are recorded. What is the probability that the mean MPG exceeds 34 MPG? c) Suppose 20 Cobalts are randomly selected and the MPG for each car are recorded. What is the probability that the mean MPG exceeds 34 MPG?
a) the probability that a randomly selected Cobalt gets more than 34 MPG is approximately 0.7149.
b) the probability that the mean MPG exceeds 34 MPG for a sample of 10 Cobalts is approximately 0.035.
c) the probability that the mean MPG exceeds 34 MPG for a sample of 20 Cobalts is approximately 0.005.
a) To find the probability that a randomly selected Cobalt gets more than 34 MPG, we need to calculate the area under the normal distribution curve to the right of 34 MPG.
Using the z-score formula, we can convert the MPG value to a standard score (z-score) using the formula:
z = (x - μ) / σ,
where x is the given value (34 MPG), μ is the mean (32 MPG), and σ is the standard deviation (3.5 MPG).
Calculating the z-score:
z = (34 - 32) / 3.5 = 0.57
Using a standard normal distribution table or a statistical calculator, we can find the area to the right of the z-score 0.57.
Let's assume the standard normal distribution table gives us a value of 0.2851 for z = 0.57.
Since the total area under the normal curve is 1, the probability of getting more than 34 MPG is:
P(X > 34) = 1 - P(X ≤ 34) = 1 - 0.2851 = 0.7149
Therefore, the probability that a randomly selected Cobalt gets more than 34 MPG is approximately 0.7149.
b) When selecting a sample of 10 Cobalts, the mean MPG of the sample (\(\bar{X}\)) follows a normal distribution with the same mean (32 MPG) and a standard deviation (σ) equal to the population standard deviation (3.5 MPG) divided by the square root of the sample size (√10).
σ( \(\bar{X}\) ) = σ / √n = 3.5 / √10 ≈ 1.107
We want to find the probability that the mean MPG exceeds 34 MPG for the sample of 10 Cobalts. In other words, we need to find P(\(\bar{X}\) > 34).
We can again convert the value of 34 MPG to a z-score:
z = (34 - 32) / 1.107 ≈ 1.805
Using a standard normal distribution table or a statistical calculator, we find the area to the right of the z-score 1.805.
Let's assume the standard normal distribution table gives us a value of 0.035 for z = 1.805.
Therefore, the probability that the mean MPG exceeds 34 MPG for a sample of 10 Cobalts is approximately 0.035.
c) When selecting a sample of 20 Cobalts, the mean MPG of the sample (\(\bar{X}\)) follows a normal distribution with the same mean (32 MPG) and a standard deviation (σ) equal to the population standard deviation (3.5 MPG) divided by the square root of the sample size (√20).
σ( \(\bar{X}\) ) = σ / √n = 3.5 / √20 ≈ 0.78
We want to find the probability that the mean MPG exceeds 34 MPG for the sample of 20 Cobalts. In other words, we need to find P(\(\bar{X}\) > 34).
Similarly, we can convert the value of 34 MPG to a z-score:
z = (34 - 32) / 0.78 ≈ 2.564
Using a standard normal distribution table or a statistical calculator, we find the area to the right of the z-score 2.564.
Assuming the standard normal distribution table gives us a value of 0.005 for z = 2.564.
Therefore, the probability that the mean MPG exceeds 34 MPG for a sample of 20 Cobalts is approximately 0.005.
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george rolls a number cube 78 times. how many times can he expect to roll an odd mumber greater than 1?
it's:
\(5 \times {6}^{78} \)
Armando has a credit card that uses the adjusted balance method. For the
first 10 days of one of his 30-day billing cycles, his balance was $2500. He
then made a payment of $1600, so his balance decreased to $900, and it
remained that amount for the next 10 days. Armando then made a purchase
for $1300, so his balance for the last 10 days of the billing cycle was $2200. If
his credit card's APR is 33%, how much was Armando charged in interest for
the billing cycle?
A. $35.26
B. $24.41
C. $59.67
D. $67.81
The amount of interest that Armando was charged at an APR of 33% under the adjusted balance method is C. $59.67.
What is the adjusted balance method?The adjusted balance method charges interest on the ending balance of the credit card at a daily percentage rate multiplied by the number of days of the billing cycle.
The interest (or finance charge) for the billing cycle is based on the product of the adjusted balance or ending balance and the DPR.
Balance for the first 10 days = $2,500
Billing cycle = 30 days
Payment made = $1,600
Purchase = $1,300
Ending balance = $2,200 ($2,500 - $1,600 + $1,300)
Annual percentage rate (APR) = 33%
Monthly percentage rate (MPR) = 2.75% (33%/12)
Daily percentage rate (DPR) = 0.090411% (33%/365)
Interest = $59.67 ($2,200 x 0.090411% x 30)
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Answer:24.41
Step-by-step explanation:
Pls Help Pls Pls PLs
The number of minutes that it will take to remove all at the same time is: 60 minutes
How to solve Algebra Word Problems?Given that:
- The scones bake for 15 minutes, the muffins bake for 12 minutes, and the cookies bake for 10 minutes.
Here we need to find out how many minutes after Caylan puts the trays in the oven will he first remove the scones, muffins, and cookies at the same time.
Based on the above information, the calculation is as follows:
Here we have to determine the L.C.M of each number:
12 = 2 * 2 * 3
15 = 3 * 5
20 = 2 * 2 * 5
Final LCM = 2 * 2 * 3 * 5 = 60
Therefore we can conclude that He will remove all trays at every 60 minutes interval.
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1. "is going"
Which principal part of the verb is used in the following sentence?
Eunice is going to the prom with Zeke.
A. past
B. present
C. past participle
D. present participle
Please help. I am lost and do not know how to do this problem.
Thank you and have a great day!
(1 point) What is the probability that a 7-digit phone number contains at least one 2? (Repetition of numbers and lead zero are allowed). Answer: 0.999968
The probability that a 7-digit phone number contains at least one 2 is 0.999968.
The given number is a 7-digit number.
The repetition of numbers is allowed, and the lead zero is allowed.
We have to find the probability that a 7-digit phone number contains at least one 2.
To find the probability that a 7-digit phone number contains at least one 2, we will take the complement of the probability that there is no 2 in a 7-digit phone number.
Therefore, the probability that there is no 2 in a 7-digit phone number is:
\(\[\frac{{8 \times 9 \times 9 \times 9 \times 9 \times 9 \times 9}}{{10 \times 10 \times 10 \times 10 \times 10 \times 10 \times 10}} = \frac{{531441}}{{10000000}}\]\)
So, the probability that a 7-digit phone number contains at least one 2 is:
\(\[1 - \frac{{531441}}{{10000000}} = \frac{{9468569}}{{10000000}} = 0.999968\]\)
Therefore, the probability that a 7-digit phone number contains at least one 2 is 0.999968.
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A graph titled Health Club Rates has a number of family members on the x-axis and Monthly cost (dollars) on the y-axis. For 2 family members, the cost is 84; 4 family members, 168; 6 family members, 252; 8 family members, 336.
Use the graph to find the unit rate.
$24 per person
$42 per person
$32 per person
$84 per person
Answer:
$42
Step-by-step explanation:
hope this helps
pleade hurry!! A function, f(x), is shown below. It is a shifted graph of y = x². Choose the equation for f(x) that matches the graph shown.
Answer: B. f(x) = (x - 2)^2 - 3
Step-by-step explanation:
Please help. Thank you!
Answer:
25 sin 42 =x
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
sin theta = opposite/ hypotenuse
sin 42 = x / 25
Multiply each side by 25
25 sin 42 = x/25 *25
25 sin 42 =x
Answer:
A
Step-by-step explanation:
Write three ordered pairs that would be
found on the graph of the equation y = 3.5x.
9.
The graph of y = 3.5x is shown below, and the three ordered pairs that can be found are: (1, 3.5), (2, 7), and (3, 10.5).
How to Find the Ordered Pairs of an Equation of a Graph?The ordered pairs that are found on the graph of an equation, are coordinates of any point that is on the line of the equation.
Given the equation, y = 3.5x, we can find the ordered pairs of this equation that can be found on the graph by plugging in the values of x for 1, 2, and 3 respectively:
For x = 1, we have:
y = 3.5(1)
y = 3.5.
For x = 2, we have:
y = 3.5(2)
y = 7
For x = 3, we have:
y = 3.5(3)
y = 10.5
Thus, the ordered pairs are, (1, 3.5), (2, 7), and (3, 10.5).
They can be seen in the graph of y = 3.5x that is attached below.
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Someone please help me
Answer:
9&3
Step-by-step explanation:
I went and used the internet.....