Answer:
-2.5w<6.8
-2.5w/-2.5<6.8/-2.5
w>-2.72
Which graph is correct?
The graph of the inequality y ≥ (1/2)x - 1 and x - y > 1 is attached. Shannon's graph is correct.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables. Equations can either be linear, quadratic, cubic and so on depending on the degree.
Inequalities are used for the non equal comparison of numbers and variables.
Given the inequalities:
y ≥ (1/2)x - 1 (1)
and
x - y > 1 (2)
The graph of the inequality is attached. Shannon's graph is correct.
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Write a true equation based on this diagram
The heights of 2000 students are nomally distributed with a mean of 176.5 centimeters and a standard deviation of 7.3 centimeters. Assuming that the heights are recorded to the nearest half-centimeter, how many of these students would be expected to have heights (a) less than 164.0 centimeters? (b) between 171.5 and 187.0 centimeters inclusive? (c) equal to 179.0 centimeters? (d) greater than or equal to 193.0 centimeters? Chick here to view page 1 of the standard normal distribution table. Click here to view. page 2 of the standard nomval distribution table.
(a) For heights less than 164.0 cm, we can use the standard normal distribution table to find the corresponding z-score and calculate the proportion of students below that threshold.
(b) For heights between 171.5 and 187.0 cm, we can calculate the proportion of students within that range by finding the z-scores for the lower and upper bounds and subtracting the corresponding proportions.
(c) For heights equal to 179.0 cm, we can calculate the proportion of students by finding the z-score for that value.
(d) For heights greater than or equal to 193.0 cm, we can find the proportion of students above that threshold by calculating the complement of the proportion below that value using the standard normal distribution table.
(a) To find the proportion of students with heights less than 164.0 cm, we need to calculate the z-score first. The z-score formula is given by (X - μ) / σ, where X is the given height, μ is the mean, and σ is the standard deviation. After calculating the z-score, we can look up the corresponding value in the standard normal distribution table to find the proportion of students below that z-score. This proportion represents the percentage of students expected to have heights less than 164.0 cm.
(b) To find the proportion of students with heights between 171.5 and 187.0 cm inclusive, we follow a similar approach. We calculate the z-scores for the lower and upper bounds of the range and find the corresponding proportions from the standard normal distribution table. By subtracting the lower proportion from the upper proportion, we can determine the percentage of students within that range.
(c) For heights equal to 179.0 cm, we calculate the z-score using the formula mentioned earlier and find the corresponding proportion from the standard normal distribution table. This proportion represents the percentage of students expected to have a height of exactly 179.0 cm.
(d) To find the proportion of students with heights greater than or equal to 193.0 cm, we calculate the z-score and find the proportion below that value using the standard normal distribution table. Then, we subtract this proportion from 1 to obtain the complement, which represents the percentage of students expected to have heights greater than or equal to 193.0 cm.
By applying these calculations and referring to the standard normal distribution table, we can estimate the expected number or percentage of students falling within each height range or threshold.
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Formula One race cars can reach speeds of approximately 200 meters per 5 pointssecond. What is this speed in meters per minute? *1,200 meters per minute2.65 meters per minute120 meters per minute12,000 meters per minuteSaintesCompare these two fractions: 3/10 and 115 *
One minute has 60 seconds. So we want to know if the car can travel 200 meters in 1 second, how far can it go in 60 seconds?
\(\frac{200m}{1s}\times60s=12,000\text{ m/s}\)The speed in meters per minute is 12,000
Write the equation of a line that passes through (-3/2, -5) and perpendicular to a line that contains (-1, -2) and (-2, -8).
Answer:
find gradient/slope
-8-(-5) / -2-(-1) = -3/-1
= 3
y=3x+c
perpendicular line formula
m1(m2)= -1
(sub in the gradient before)
3(m2)= -1
m2= -1/3 ( perpendicular line gradient)
y=-1/3x+c
(sub in the coordinate)
-5=-1/3(-3/2)+c
-5=1/2+c
-11/2=c (y intercept)
answer: y= -1/3x - 11/2
Layla is the youngest of four siblings whose ages are consecutive even integers. If the sum of their ages is 8484, find Layla's age
The age of Layla who youngest of four siblings is 18 years old
The age of 4 sibling are in consecutive even integers
Age of 1st sibling = x
Age of 2nd sibling = x + 2
Age of 3rd sibling = x + 4
Age of 4th sibling = x + 6
Sum of the sibling age = 84
x + x + 2 + x + 4 + x + 6 =84
4x + 12 = 84
4x = 84 -12
4x = 72
x = 18
Layla is youngest sibling hence her age will be 18 years
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The question is incorrect the correct question is :
Layla is the youngest of four siblings whose ages are consecutive even integers. If the sum of their ages is 84, find Layla's age
A group of friends ordered hot dogs (h) and pretzels (p), and then spent $15.50 on soft drinks. A hot dog and a pretzel each cost $3.90. Which of the following expressions can be used to find the total amount they spent? Select ALL that apply.
Can someone plz answer this for me
Answer:
Hola soy nuevo busco amigo
Given 3 and one-tenth times negative 6 times seven-twelfths, determine the product.
eighteen and one sixtieth
negative eighteen and 7 over 120
ten and 17 over 20
negative 10 and 17 over 20
The product of the expression [3 + 1/10] (-6 x 7 / 12) is -10 + (17 / 20) = negative 10 and 17 over 20.
What is multiplication?Multiplication is mathematical arithmetic operation. It is also a process of adding same types of expression to some number of times.
Example - 2 × 3 means 2 is added three times or 3 is added 2 times.
Given that the expression { 3 + (1/10) } {-6 x (7 / 12) }
Simplifying the expression using PEMDAS,
{ 3 + (1/10) } {-6 x (7 / 12) }
= ( 31 / 10 ) × ( -7 / 2 )
= - 217 / 20
= -10 + (17 / 20)
= negative 10 and 17 over 20
Therefore, the value of the expression [3 + 1/10] (-6 x 7 / 12) is -10 + (17 / 20) = negative 10 and 17 over 20
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4. A right triangle has legs with lengths of 6 feet and 9 feet. The hypotenuse of the triangle, in feet,
is between:
A. 4 and 5
B. 6 and 9
C. 9 and 10
D. 10 and 11
E. 11 and 13
Answer:
D. 10 and 11
Step-by-step explanation:
This problem would use pythagorean theorem because we're finding the hypotenuse of a right triangle. This is its standard equation:
\(a {}^{2} + {b}^{2} = {c}^{2} \)
The legs represent \(a\) and \(b\) respectively, and \(c\) represents the hypotenuse. After plugging in the legs' respective values, the equation looks like this:
\(6^{2} + {9}^{2} = {c}^{2} →36 + 81 = {c}^{2} →117 = c^{2} \)
To isolate \(c\), you would find the square root of \(117\). In this case, we're just finding which integers\( \sqrt{117} \) is between. \(\sqrt{100}(=10)\) is the closest integer value below \(\sqrt{117}\) and \(\sqrt{121}(=11)\) is the closest integer value above \(\sqrt{117}\). So the answer is D. 10 and 11.
[ 2 8] [2 0] [7 2]
Given A = [3 0] B = [3 8] and C = [6 3] [5 1] (a) Is AB def ned? Calculate AB. Can you calculate BA ? Why?
(b) Is BC defined? Calculate BC. Is CB defined? If so, calculate CB. Is it true that BC=CB ?
The exercise involves calculations with matrices A, B, and C. We need to determine if matrix products AB, BA, BC, and CB are defined. Additionally, we need to calculate the specific matrix products and determine if BC is equal to CB.
Let's perform the calculations step by step:
(a) To determine if AB is defined, we need to check if the number of columns in matrix A is equal to the number of rows in matrix B. If they are equal, the matrix product AB is defined. If not, the product is not defined.
Matrix A has 2 columns and matrix B has 2 rows, so the product AB is defined.
Calculating AB:
AB = [23 + 83 20 + 88]
[23 + 03 20 + 08]
= [30 64]
[6 0]
To calculate BA, we need to check if the number of columns in matrix B is equal to the number of rows in matrix A. In this case, matrix B has 2 columns and matrix A has 2 rows, so the product BA is also defined.
Calculating BA:
BA = [32 + 02 38 + 02]
[32 + 02 38 + 02]
= [6 24]
[6 24]
(b) To determine if BC is defined, we need to check if the number of columns in matrix B is equal to the number of rows in matrix C. In this case, both matrices have 2 columns and 2 rows, so the product BC is defined.
Calculating BC:
BC = [26 + 85 23 + 81]
[06 + 05 03 + 01]
= [52 22]
[0 0]
To calculate CB, we need to check if the number of columns in matrix C is equal to the number of rows in matrix B. In this case, matrix C has 2 columns and matrix B has 2 rows, so the product CB is also defined.
Calculating CB:
CB = [62 + 30 68 + 30]
[52 + 10 58 + 10]
= [12 48]
[10 40]
Is it true that BC = CB?
BC = [52 22]
[0 0]
CB = [12 48]
[10 40]
BC and CB are not equal. The matrix product is not commutative, so BC and CB may yield different results.
In summary:
(a) AB is defined and the result is:
AB = [30 64]
[6 0]
BA is also defined and the result is:
BA = [6 24]
[6 24]
(b) BC is defined and the result is:
BC = [52 22]
[0 0]
CB is also defined and the result is:
CB = [12 48]
[10 40]
BC and CB are not equal, indicating that matrix multiplication is not commutative.
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Roger has a credit card with an APR of 19.40% and a billing cycle of 30 days. The following table shows his transactions with that credit card in the month of June
Date 611 6/6 Amount ($) Transaction 265.40 Beginning balance 90.00 Payment 43.33 Purchase 37.71 Purchase 6/16 6/22 If Roger's finance charge for June is $3.56, which method of calculating the finance charge does Roger's credit card company use?
daily balance method
b. adjusted balance method previous balance method
d. there is not enough information to determine which method was used
Answer:
The daily balance method
Step-by-step explanation:
The method of calculating the finance charge that Roger's credit card company uses is A. daily balance method.
What is the daily balance method?The daily balance method of calculating credit card's finance charge uses the actual daily balance of the billing cycle instead of being based on an average of the balance throughout the billing cycle.
Using the daily balance method, the finance charges are calculated by summing daily balance multiplied by the daily rate or APR/365.
Data and Calculations:APR = 19.40%
Monthly APR = 1.62% (19.4%/12)
Daily APR = 0.053%
Date Transaction Amount ($)
6/6 Beginning balance 90.00
6/11 Payment 43.33
6/16 Purchase 37.71
6/22 Purchase 265.40 $349.78
Finance charge = 3.56
Ending balance = $353.34
Thus, the method of calculating the finance charge that Roger's credit card company uses is A. daily balance method.
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Part H
PLEASE HELP !!
Complete the table to find the rule for the dilation, the coordinates of trapezoid P′Q′R′S′, and the coordinates of the dilated image, trapezoid P″Q″R″S″
given coordinates dilated coordinates
p' ( 4, 6 ) p'' ( 4, -6 )
Q' ( 2, 2 ) Q'' ( 2, -2 )
R' ( 6, 2 ) R'' ( 6, -2 )
S' ( 6, 6 ) S'' ( 6, -6 )
Given data
p' ( 4, 6 )
Q' ( 2, 2 )
R' ( 6, 2 )
S' ( 6, 6 )
How to find the coordinates of the dilated image trapezoid P″Q″R″S″ using the rule in the tableThe given coordinates is gotten by ( x, y ) and the coordinates is gotten to be ( x, -y ). Applying the rule is solve as follows:
given coordinates dilated coordinates
( x, y ) ( x, -y )
p' ( 4, 6 ) p'' ( 4, -6 )
Q' ( 2, 2 ) Q'' ( 2, -2 )
R' ( 6, 2 ) R'' ( 6, -2 )
S' ( 6, 6 ) S'' ( 6, -6 )
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Which ratio below is equivalent to the ratio 7 : 350
Answer:
the ratio is 1:50 i don't see anymore ratio underneath
Step-by-step explanation:
Ramila is working in an office. Her monthly salary is rs 60000 10% of her salary goes to employee fund and the employer deposists the same amount to the fund.if she gets additional one month salary as dashain allowance and dearness allowance rs 40000
Find the total income ans taxable income of ramila
If ramila is unmarried then find her annual tax to be paid
Therefore, Ramila's total income is Rs. 1,00,000 and her taxable income is Rs. 88,000. If she is unmarried, she needs to pay an annual tax of Rs. 10,560.
What is percent?Percent is a way of expressing a number as a fraction of 100. It is denoted by the symbol "%". For example, 25% means 25 out of 100 or 0.25 as a decimal. Percentages are often used to express proportions, rates, and changes in values. They are commonly used in finance, economics, statistics, and many other fields.
Here,
Total Monthly Salary of Ramila = Rs. 60,000
Employee Contribution to Fund = 10% of Rs. 60,000 = Rs. 6,000
Employer Contribution to Fund = Rs. 6,000
Total Contribution to Fund = Rs. 6,000 + Rs. 6,000 = Rs. 12,000
Additional Allowances = Rs. 40,000
Gross Monthly Income = Total Monthly Salary + Additional Allowances
= Rs. 60,000 + Rs. 40,000
= Rs. 1,00,000
Taxable Income = Gross Monthly Income - Contribution to Fund
= Rs. 1,00,000 - Rs. 12,000
= Rs. 88,000
Annual Tax = Taxable Income * 12% (Assuming tax rate of 12%)
Annual Tax = Rs. 88,000 * 12/100
= Rs. 10,560
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The quality control supervisor of a tire-manufacturing company selects 75 random tires to check their diameters. He finds that 3 tires have an incorrect diameter. How many tires out of 5,000 should the supervisor predict have incorrect diameters?
The supervisor should predict that 200 out of 5,000 tires will have incorrect diameters based on the sample of 75 tires that were checked.
If the quality control supervisor has randomly selected 75 tries to check their diameters and found that 3 of them have incorrect diameters, we can use this information to estimate the proportion of tires in the population that have incorrect diameters.
we can use the sample proportion, which is the number of tires in the manufacturing company sample with incorrect diameters divided by the total number of tires in the sample. In this case, the sample proportion is p = 3/75 = 0.04.
To estimate the number of tires out of 5,000 that should have incorrect diameters, we can multiply the population size by the estimated proportion. This gives:
Number of tires with incorrect diameters = 5,000 x 0.04 = 200
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find 0.025×1.24 . express your answer in decimal form
Answer:
0.025
Step-by-step explanation:
Divide the percentage by 100 to convert it to decmals.
for example 20%=
20
100
=.2
30%=
30
100
=
.3
2.5%=
2.5
100
=
.025
ur welcome
Answer:0.03100
Step-by-step explanation:
Answer please!!,
(Score for Question 2 of 6 points)
2. A vine called the mile-a-minute weed is known for growing at a very fast rate. It can grow up to 0.5 ft per day.
How fast in inches per hour can the mile-a-minute weed grow up to? Show your work using the correct
conversion factors
Answer. I
Answer:
0.25 an hour
Step-by-step explanation:
1day=0.5 ft
24hr=6inch
6÷24=0.25
A child needs to take 1/2 tablespoons of medicine per day in 4 equal doses. How much medicine is in each dose?
PLEASE HELP
Answer:
1/8 tablespoons
Step-by-step explanation:
Since the child needs to take 1/2 tablespoons off medicine per day in 4 equal doses, you will divide the 1/2 tablespoons into 4 equal doses, so you need to divide by 4.
You can do this by multiplying 1/2 by 1/4.
\(\frac{1}{2} * \frac{1}{4} = \frac{1}{8}\)
Answer:
it would be 1/8
Step-by-step explantion:
simply divide
1/2÷4
=1/8
(that should be right)
What is the equation of the circle if the center is located at ( 2,-5) and the circumference is 10?
1
The graph shows an image of a dilation about the origin with a scale factor of 2.
-10-8-6-4-
2
40
1
What are the coordinates of the pre-image of A', point A?
(-8,-12)
01
8 10 X
As a result, the answer to the provided coordinate plane problem is only choice C), which is the right answer.
What is a coordinate plane?The term "coordinate plane" refers to a two-dimensional region that consists of two number lines. It emerges when the X-axis & Y-axis intersect at a location known as the origin. Using the numbers on a coordinate grid, one can locate points.
Here,
Since, If there is a coordinate plane with both parallel lines, go with option A.
Therefore, there is no cure.
There are hence a finite number of solutions that could be found.
If two lines cross, there is only one potential result for Option B. Consequently, the quantity of potential solutions is.
According to Option C, there must be an endless number of solutions to the system because there are two coinciding lines that provide us an infinite number of junction sites.
The difference between Option D) and Option B) is noted.
Only choice C) is hence the proper one.
Therefore , the solution to the given problem of coordinate plane comes out to be Only choice C) is hence the correct one.
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Find the area of this triangle ifC = 77, a = 57, and b = 8.9.
Using Law of sines:
Area = 1/2 ab sin C
Replacing:
Area = 1/2 √57 (8.9) sin (7pi/12)
Area = 32.5 units2
Part A: James bought a cake that weighs \( 3 \frac{1}{4} \) pounds. How many ounces does the cake weigh? Show your work. (5 points) \( [16 \) ounces \( =1 \) pound \( ] \) Part B: A running tap dispen
Part A: Therefore, the cake weighs 112 ounces. Part B: Therefore, after 20 seconds, the tap will dispense 20 seconds × 1.2 pints/second = 24 pints of water.
Part A:
To convert pounds to ounces, we can use the conversion factor: 1 pound = 16 ounces.
Given that the cake weighs 3 (4/1) pounds, we can calculate the weight in ounces as follows:
3 4/1 pounds = 3 pounds + 4/1 pounds = 3 pounds + 4 pounds = 7 pounds
Converting 7 pounds to ounces: 7 pounds × 16 ounces/pound = 112 ounces
Therefore, the cake weighs 112 ounces.
Part B:
To convert gallons to pints, we can use the conversion factors: 1 gallon = 4 quarts and 1 quart = 2 pints.
Given that the running tap dispenses 0.15 gallons of water every second, we can calculate the amount of water dispensed in pints as follows:
0.15 gallons × 4 quarts/gallon × 2 pints/quart = 0.15 × 4 × 2 = 1.2 pints
Therefore, after 20 seconds, the tap will dispense 20 seconds × 1.2 pints/second = 24 pints of water.
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What's the sum of x and half of x?
Can someone help please...
Answer:
x + 1/2x OR x + x/2
Both of them are the same. Hope this helps, thank you :) !!
Also where would i go to get more answers for questions like this but not on this site
Which of the following sets represents the domain of the function shown? {(2, 3), (4, 7), (5, 9), (11, 6)}
Select one:
a. {2, 4, 5, 11}
b. {3, 7, 6, 9}
c. {(3, 2), (7, 4), (9, 5), (6, 11)}
d. {2, 3, 4, 5, 6, 7, 11}
Answer: a
Step-by-step explanation:
The table shows the coordinates of four points on a line.
X
y
3
-12
6
-16
9
-20
12
-24
What is the slope of the line?
slope
-
G slope
Hope
slove
Answer:
G slope
Step-by-step explanation:
help with the problem in picture
Answer:
The slope of a line is a measure of its steepness. Mathematically, slope is calculated as "rise over run" (change in y divided by change in x).
Step-by-step explanation:
Johnny's electric bill is a variable expense. What is the average amount he pays for electricity If he paid $235 in December, $119 in January, $109 in February, $1 22 in March and $135 in April?
Use the given scale factor and the side lengths of the scale drawing to
determine the side lengths of the real object.
BRAINLIEST
can anybody help maybe b
Answer:
B
Step-by-step explanation:
i took i test trust me ( :
3/4 part of a rope is 150m. find the length of 7/10 part of the rope
Please help ASAP with step by step explanation.
Answer:
140m
Step-by-step explanation:
3/4 = .75
x/.7 = 150/.75
multiply both sides by .7
x = 150/.75 * .7
x = 140m