Answer:
-10 ≥ 2x + 14
Step-by-step explanation:
-10 ( negative ten )
≥ ( symbol for no less )
2x ( two times a number)
14 ( plus fourteen )
Martina changed 200 Swiss francs (CHF) into euros (€). Calculate, in dollars, how much more Jane pays.
The exchange rate was €1= 1.14 CHF
Calculate how much Martine received.
Give your answer correct to the nearest euro
Using rates and ratio concept, Martine received €175.44 after converting 200 Swiss francs (CHF)
RatesA rate is a ratio that compares two different quantities which have different units. The unit rate is different from that of a rate, in which a certain number of units of the first quantity is compared to one unit of the second quantity. In other words, we can say that the second quantity in the comparison is always 1.
To calculate the amount Martine received, we have to use the rate given in the question.
€1 = 1.14 CHF
x € = 200
Cross multiply both sides and solve for x
1 * 200 = 1.14 * x
200 = 1.14x
Divide both sides by the coefficient of x
200 / 1.14 = 1.14x / 1.14
x = 175.44
Martine received €175.44
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Solve for X
5(x + 8) = -10
Answer:
x = -10
Step-by-step explanation:
5 (x + 8) = -10
5x + 40 = -10
5x = -50
x= -10
Answer:
x= -10
Step-by-step explanation:
5(x+8)=-10
5x+40=-10
move the 40 to the other side
5x=-10-40
5x= -50
divide 5 by both sides to get rid of the x.
x=-10
There are 16 ounces in a pint and 8 pints in one gallon. How many ounces are in one gallon?
Answer:
128 oz
Step-by-step explanation:
128 ounces in the us
WILL GIVE BRAINLIEST! How many multisets of three positive integers have a mean of 9, a median of 11 and no mode? A multiset allows multiple instances for each of its elements. For example {1,2,2} and {2,1,2} are the same multiset.
Reminders:
• The Mean is equivalent to the average.
• The Median is the middle value when values are sorted by size.
• The Mode is the most often occurring value and is not set if no value is repeated.
a) 27
b) 4
c) 20
d) 6
e) 11
f) 1
g) 16
There are 4 multisets of three positive integers that have a mean of 9, a median of 11, and no mode.
Let's consider the three positive integers in ascending order: a ≤ b ≤ c. Since the median is 11, we have b = 11.
To have a mean of 9, the sum of the three integers should be 3 * 9 = 27. So, a + 11 + c = 27. Since a and c are positive integers, the only possible combinations that satisfy this equation are (a, c) = (8, 8), (7, 10), (6, 11), and (5, 12).
Now, let's check if these combinations have no mode. In each case, none of the integers are repeated, so there is no mode.
Therefore, there are 4 multisets that satisfy the given conditions: {8, 11, 8}, {7, 11, 10}, {6, 11, 11}, and {5, 11, 12}.
Hence, the answer is option (b) 4.
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I need help with this things please 20 points
Answer:
whole number, integer and rational
Step-by-step explanation:
squareroot of 25 equals 5, which is a whole number, integer and rational
The points (9, 9) and (5, 1) fall on a particular line. What is its equation in slope-intercept form?
graph x<2/9 on a number line
Answer:
The line should begin on the right side 2 dashes (the small lines tht go throught the number line. There are 9 dashes between each whole number.)
Then the line should go left because it says x is less than 2/9. (which is right)
The line segment you should choose is the one with the open circle with an arrow going to the left.
<---O (looks like this lol.)
The chief of security for the Mall of the Dakotas directed a study of theft. He selected a sample of 200 boxes that had been tampered with and ascertained that for 80 of the boxes, the missing pants, shoes, and so on were attributed to shoplifting. For 45 boxes, employees had stolen the goods, and for the remaining 75 boxes, he blamed poor inventory control. In his report to the mall management, can he say that shoplifting is twice as likely to be the cause of the loss as compared with either employee theft or poor inventory control and that employee theft and poor inventory control are equally likely? Use the 0.10 significance level.
H0: The proportions are as stated. H1: The proportions are not as stated.
1. State the decision rule using 0.10 significance level. (Round your answer to 3 decimal places.)
2. Compute the value of chi-square. (Round your answer to 3 decimal places.)
The chief of security for the Mall of the Dakotas directed a study of theft. He selected a sample of 200 boxes that had been tampered with and ascertained that for 80 of the boxes, the missing pants, shoes, and so on were attributed to shoplifting. For 45 boxes, employees had stolen the goods, and for the remaining 75 boxes, he blamed poor inventory control.
In his report to the mall management, can he say that shoplifting is twice as likely to be the cause of the loss as compared with either employee theft or poor inventory control and that employee theft and poor inventory control are equally likely? Use the 0.10 significance level. H0: The proportions are as stated. H1: The proportions are not as stated. The decision rule using a 0.10 significance level is: Reject H0 if the computed chi-square value is greater than 4.605. Compute the value of chi-square as follows: Observed Frequencies: Shoplifting: 80 Employee theft: 45 Poor inventory control: 75 Total: 200 Expected Frequencies: Shoplifting: (80+45+75) x (80/200) = 80. Employee theft: (80+45+75) x (45/200) = 36. Poor inventory control: (80+45+75) x (75/200) = 84. Total: 200The formula for chi-square is: χ2=∑((Oi−Ei)2/Ei). Using the observed and expected frequencies from above, we get: χ2 = [(80 - 80)²/80] + [(45 - 36)²/36] + [(75 - 84)²/84] = 2.4. The value of chi-square is 2.4, which is less than 4.605. Therefore, we fail to reject H0. Hence, the chief of security for the Mall of the Dakotas cannot say that shoplifting is twice as likely to be the cause of the loss as compared with either employee theft or poor inventory control and that employee theft and poor inventory control are equally likely at a 0.10 significance level.
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I have a square piece of paper with a height of 8cm and a width of 8cm
i fold it in half to makea triangle Z
what is the area of triangle d
thanks! Will mark as brainliest
Answer:
The area of triangle is 32 cm².
Step-by-step explanation:
When you fold a square into triangle, the length of sides will still be the same. So using area of triangle formula, you are able to find the area :
\(area = \frac{1}{2} \times width \times height\)
Let width = 8cm,
Let height = 8cm,
\(area = \frac{1}{2} \times 8 \times 8\)
\(area = \frac{1}{2} \times 64\)
\(area = 32 \: {cm}^{2} \)
Given:
Height, h = 8 cmBreadth, b ( or width ) = 8 cmTo find out:
Find the area of half fold paper ( triangle) ?
Formula used:
Area of triangle = ½ × b × h
Solution:
We know that,
Area of triangle = ½ × b × h
☆ Substituting the values in the above formula,we get
Area of triangle = ½ × 8 × 8
= 4 × 8
= 32 cm²
Hence the area of given triangle is 32 cm².
A jogger runs into the countryside a rate of 10 mph can you turn on the same route at 6 mph if the total trip took one hour 36 minutes how far did he jog
Answer: 12 miles
Step-by-step explanation:
Change 36 min to hrs: 36/60 = 0.6 hrs
Let d = distance one way
Time = dist/speed
Find d:
Time out + time back = 1.6 hrs
d/10 + d/6 = 1.6
Get rid of the denominator, multiply equation by 30:
3d + 5d = 1.6(30)
8d = 48
d = 48/8
d = 6 mi one way. Total he jogged = 12 miles
Erin is volunteering at a soup kitchen. At the start of her shift, she is provided with a 16.3-
ounce jar of peanut butter. She uses it to make peanut butter sandwiches, each with 0.8
ounces of peanut butter. How much peanut butter will be left after Erin makes 20
sandwiches?
Answer:
0.3
Step-by-step explanation:
total:16.3
20*0.8=16 (amount she will use)
16.3-16=0.3
the edge of a cube has a length of inches with a possible error of % the possible error in cubic inches in the volume of the cube is
The possible error in the volume of the cube is cubic inches.
The edge of a cube with a length of inches and a possible error of % means that the actual length could be within % of the given length. Therefore, the minimum possible length of the edge is inches, and the maximum possible length is inches.
To calculate the possible error in cubic inches in the volume of the cube, we need to use the formula V = e^3, where V is the volume and e is the length of the edge.
Substituting the minimum and maximum values of the edge length, we get the minimum and maximum possible volumes of the cube:
V_min = ( inches)^3 = cubic inches
V_max = ( inches)^3 = cubic inches
The difference between the maximum and minimum volumes is the possible error in cubic inches:
V_error = V_max - V_min = ( inches)^3 - ( inches)^3 = cubic inches
Therefore, the possible error in the volume of the cube is cubic inches. This means that the actual volume of the cube could be within cubic inches of the given volume.
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At any time t > 0,the rate at which a person can memorize a list of M words is proportional to the product of the number of words memorized ad tlie number of words tlat have not been memorized. If 2 denotes the number of words memorized at time t, which differential equation models this situation? Assume kis a positive constant; A. d k dt B. d k ( - M) dt C d k(M - 2) dt D. d =Rt(M -t) dt
The differential equation that models this situation is dx/dt = kx(M - x) (option c).
To determine the differential equation that models the situation, let's analyze the problem statement.
The rate at which a person can memorize a list of M words is proportional to the product of the number of words memorized and the number of words that have not been memorized.
Let's denote the number of words memorized as "a" and the number of words not yet memorized as "M - a" (where M is the total number of words in the list).
The problem states that the rate of memorization is proportional to the product of "a" and "M - a". We can express this mathematically as:
Rate of memorization ∝ a * (M - a)
To convert this proportionality into an equation, we introduce a positive constant k:
Rate of memorization = k * a * (M - a)
The left side of the equation represents the rate of change of the number of words memorized (da/dt), and the right side represents the product of "a" and "M - a" multiplied by the constant k.
Therefore, the differential equation that models this situation is:
da/dt = k * a * (M - a)
Comparing this with the given options, we can see that the correct choice is option C:
dx/dt = k * x * (M - x)
The complete question is:
At any time t > 0 the rate at which a person can memorize a list of M words is proportional to the product of the number of words memorized and the number of words that have not been memorized. If a denotes the number of words memorized at time t, which differential equation models this situation? Assume k is a positive constant.
A. dx/dt = kx
B. dx/dt = kx(x - M)
C. dx/dt = kx(M - x)
D. dx/dt = kt(M - t)
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Select the best answer regarding the effects of Carbon monoxide: a. The affinity between CO and hemoglobin is about the same as oxygen. b. The central chemoreceptors will detect the reduction in oxygen delivered to the cells and will increase their firing rate. c. CO results in less oxygen loading hemoglobin but unloading is not changed. d. A small amount of CO in the air will not reduce arterial PO2 levels enough to be sensed by the peripheral chemoreceptors.
The best answer regarding the effects of carbon monoxide is option c, CO results in less oxygen loading hemoglobin but unloading is not changed.
Carbon monoxide binds up more tightly to the hemoglobin as compared to the oxygen molecules. This reduces the oxygen-carrying capacity of the blood and results in less oxygen loading onto hemoglobin.
However, once oxygen is already bound to hemoglobin, CO does not significantly affect its release or unloading. Therefore, option c is the most accurate statement among the given choices.
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(a) In 2008 the total number of tickets sold for an athletics meeting was 3136.
The ratio child tickets sold : adult tickets sold = 17:32.
(i) How many child tickets were sold?
approximately how many milliliters are contained in a half-cup of milk?
A. 50
B. 85
C. 120
D. 200
Given half-cup of milk. if we find how many milliliters are there in this cup we get it approximately equal to 120 milliliters.
In cooking and baking, cup measurements are commonly used. However, it's important to note that cup measurements can vary slightly depending on the country or region. In the United States, a standard cup measurement is equal to 240 milliliters.
A half-cup is exactly half of this measurement, which means it would be approximately equal to 240/2 = 120 milliliters. Therefore, option C, 120, is the closest approximation to the number of milliliters contained in a half-cup of milk. It's worth noting that for more precise measurements, it's always advisable to use a kitchen scale or measuring cup with milliliter markings.
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The ratio of Ed's toy cars to Pete's toy cars was initially 5:2. After Ed gave 30 toy cars to Pete, they each had an equal number of cars. How many toy cars did they have altogether?
Answer:
140 toy cars
Step-by-step explanation:
The ratio of Ed's toy car to Pete's toy car is initially given as 5:2
Ed gave Pete a total number of 30 cars
Let x represent the greatest common factor that exists between both number
Number of Ed's car is represented as 5x
Number of Pete car is represented as 2x
Since they each have an equal number of cars which is 30 then we can solve for x as follows
5x-30=2x+30
Collect the like terms
5x-2x= 30+30
3x= 60
Divide both sides by the coefficient of x which is 3
3x/3=60/3
x=20
Ed's car is 5x, we substitute 20 for x
5(20)
= 100 cars
Pete car is 2x,we substitute 20 for x
2(20)
= 40 cars
Therefore, the total number of cars can be calculated as follows
= 100+40
= 140 toy cars
Hence they have 140 toy cars altogether
Answer:
140
Step-by-step explanation:
PLSS HELP
Which function is equivalent to h(x) = 9x2−24x +16?
(A) h(x) = (3x + 4)2
(B) h(x) = (9x + 4) (x + 4)
(C) h(x) = (3x − 4)2
If v1 = (2,5) and V2 = (4,-3), then the angle between the two vectors is
Round your answer to two decimal places,
Answer:
105.07°
Step-by-step explanation:
The angle of v1 is ...
arctan(5/2) ≈ 68.199°
The angle of v2 is ...
arctan(-3/4) ≈ -38.870°
The angle difference between the two vectors is ...
68.199° -(-38.870°) = 105.07°
Construct a 98% confidence interval for P₁ - P2. The sample statistics listed below are from independent samples. Sample statistics: n₁ = 1000, x₁ = 250, and n₂ = 1200, x₂ = 195 O (0.581, 1.819) O (-0.621, 0.781) (1.516. 3.021) O (0.047, 0.128)
the confidence interval for P₁ - P₂ is (-0.629, 0.740) at 98% confidence level.
The given sample statistics are: n₁ = 1000, x₁ = 250, n₂ = 1200, x₂ = 195.
The formula for the confidence interval for P₁ - P₂ is:
$$\left(\left(\frac{x_1}{n_1}\right)-\left(\frac{x_2}{n_2}\right)\right)± z_{α/2}×\sqrt{\left(\frac{x_1}{n_1}\times(1-\frac{x_1}{n_1})\right)+\left(\frac{x_2}{n_2}\times(1-\frac{x_2}{n_2})\right)}$$
Now, substituting the values in the formula, we get:
\begin{align*}\left(\left(\frac{250}{1000}\right)-\left(\frac{195}{1200}\right)\right)± z_{0.01/2}×\sqrt{\left(\frac{250}{1000}\times(1-\frac{250}{1000})\right)+\left(\frac{195}{1200}\times(1-\frac{195}{1200})\right)} &= \left(0.05583\right)± 2.33×\sqrt{0.0625+0.04422}\\&=0.05583±2.33×0.2944\\&=0.05583±0.685\\&=\left(-0.629,0.740\right)\end{align*}
Therefore, the confidence interval for P₁ - P₂ is (-0.629, 0.740) at 98% confidence level.
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the two shorter sides in a right triangle have the same length . the area of the right triangle is 7.36 square meters. what is the length of the hypotenuse
The length of the hypotenuse is 5.426 meter
Let the two shorter sides of the right angles triangle be denoted as x meters.
The formula for the area of right triangle is given as,
A = ab/2
Where, a and b are the length of the shorter sides of the triangle
Also we have been given the area of the triangle which is 7.36 sq. meter
Thus , A = 7.36
x^2/2 = 7.36
x^2 = 14.72
x = 3.84
Now according to the Pythagoras theorem,
H = √P^2 + B^2
Where, H = hypotenuse
P = perpendicular
B = base
Now putting the required values we get
H = √x^2 + x^2
= √2x^2
= x√2
= 5.426 meter
Hence the length of the hypotenuse is 5.426 meter
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Can someone please help marking brainliest
Answer:
down below!
Step-by-step explanation:
a) width: 2,3,4,5 length:9,8,7,6
all you need if for those numbers to add up to 11 together because the perimeter itself is 22 so you always want to be able to add those two numbers and be able to double it to the perimeter if that makes sense.
b) the greatest area there will be would be width: 5 and length: 6 because 5x6 equals 30 and multiplying the others would be less than that. hence 2x9=18, 3x8=24, and 4x7=28
please let me know if this helps if not I can try to explain another way!
in infant's Tylenol, 5 ml contains 160 mg of Acetaminophen. If you child's pediatrician says that your child can take 48 mg of Acetaminophen, how many milliliters (ml) should you give the child?
The amount of milliliters (ml) you should give the child is 1.5 ml
How to determine how many milliliters (ml) you should give the child?The given parameters are:
infant's Tylenol, 5 ml = 160 mg
This can be represented as
5 ml = 160 mg
Let the number of ml to give a child that requires 48 mg be x
So, we have:
5 ml = 160 mg
x = 48 mg
Cross multiply
x * 160 = 48 * 5 ml
Divide both sides by 160
x = 1.5 ml
Hence, the amount of milliliters (ml) you should give the child is 1.5 ml
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a set of x and y scores has b = 4, mx = 12, and my = 51. what is the y-intercept (a) for the regression equation?
The y-intercept for the regression equation is 3, given that b = 4, Mx = 12, and My = 51. So, the correct option is C).
The formula for the y-intercept of the regression equation is
a = My - b(Mx)
where My is the mean of the dependent variable (y), b is the slope, and Mx is the mean of the independent variable (x).
Given that b = 4, Mx = 12, and My = 51, we can substitute these values in the formula to find the y-intercept
a = 51 - 4(12)
a = 51 - 48
a = 3
Therefore, the y-intercept (a) for the regression equation is 3.
The correct Answer is C) 3.
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--The given question is incomplete, the complete question is given
" A set of X and Y scores has b = 4, Mx = 12, and My = 51. What is the y-intercept (a) for the regression equation? O 9.75 17.36 3.00 8.25 "--
Please help I need 6543÷29 options for answers are below in picture
Answer:
6543÷29
=225.620.......
Round 25 to two decimal places
Answer:
To round off a number to 2 decimal places, look at the digit in the thousandths place. If the digit in the thousandths place is greater or equal to 5, the hundredths digit is increased by one unit.
Step-by-step explanation:
Covert the following decimals to percents.
0.15 =_%
Answer:
15%
Step-by-step explanation:
0.15 x 100 = 15%
Some X, Y data are positively correlated with r = 0.70. Also:
= 5
=9
sx =3
sy =6
Find the equation for the regression line.
y = 2+1.4x
y = 12 + .7x
y = 0.8 + 3x
y = -3+2.4x
Predict Y if X = 9
22
18.6
5.9
14.6
Find the coefficient of determination.
0.36
0.49
0.64
0.80
The equation for the regression line is: y = 2 + 1.4x.
To predict Y if X = 9, we substitute x = 9 into the equation:
y = 2 + 1.4(9)
y = 2 + 12.6
y = 14.6
The coefficient of determination (r-squared) is equal to the square of the correlation coefficient (r):
r-squared = r^2 = 0.70^2 = 0.49
Therefore, the answer is:
- The equation for the regression line is y = 2 + 1.4x.
- Predicted Y if X = 9 is 14.6.
- The coefficient of determination is 0.49.
To find the equation for the regression line, we need to use the formula y = a + bx, where a is the y-intercept and b is the slope. Given the correlation coefficient (r) and the standard deviations (sx and sy), we can calculate the slope (b) as follows:
b = r * (sy/sx) = 0.70 * (6/3) = 1.4
Now, we can use the means of X and Y (5 and 9, respectively) to find the y-intercept (a):
a = mean_y - (b * mean_x) = 9 - (1.4 * 5) = 9 - 7 = 2
So the equation for the regression line is:
y = 2 + 1.4x
To predict Y if X = 9, substitute 9 for x in the equation:
y = 2 + 1.4(9) = 2 + 12.6 = 14.6
Therefore, the predicted Y if X = 9 is 14.6.
Finally, to find the coefficient of determination, square the correlation coefficient (r):
r² = 0.70² = 0.49
Your answer:
1. Regression line equation: y = 2 + 1.4x
2. Predicted Y if X = 9: 14.6
3. Coefficient of determination: 0.49
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for a normal distribution, find the z-score for which a total probability of 0.71 falls more than z standard deviations (in either direction) from the mean.(round to two decimal places as needed.)
The z-score for which a total probability of 0.71 falls more than z standard deviations (in either direction) from the mean is -1.04 (rounded to two decimal places).
How to find the probabilityWe need to find the z-score for which a total probability of 0.71 falls more than z standard deviations (in either direction) from the mean.
The given information can be represented as:
P(Z > z) + P(Z < -z) = 0.71
We know that the total probability for the standard normal distribution is equal to 1.
Therefore, we can rewrite the equation above as:
P(Z > z) + P(Z > z) = 0.71 ⇒ 2P(Z > z) = 0.71 ⇒ P(Z > z) = 0.355
Now, we need to find the z-score that corresponds to P(Z > z) = 0.355.
Using a standard normal distribution table, we can find the z-score that corresponds to this probability as follows:
z = -1.04 (rounded to two decimal places)
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In finance, we need to do partial observations of data and estimate the data generating process (DGP) -- for example, log-normal returns. Sometimes, we can observe only the data points of a certain process, but we don't know what is the function generating the process. Consider the following graph is a plot of the f ′
(x), of a function f(x) given. What is the underlaying function ( f(x −
i)) that is the generator of the observed points in the plot f ′
(x −
i), for points x −
1=−1,x −
2=−0.9,…,x −
n=1?
The underlying function f(x - i) that generates the observed points f'(x - i) in the plot can be determined by integrating the observed points. By integrating f'(x - i), we can obtain f(x - i) up to a constant of integration.
The constant of integration can be determined by incorporating additional information or constraints related to the problem or by considering the behavior of the function at a specific point.
To find the underlying function f(x - i) that generates the observed points f'(x - i), we need to integrate the observed points.
Integration is the reverse process of differentiation, so by integrating f'(x - i), we can recover f(x - i) up to a constant of integration.
The constant of integration arises because integration does not provide a unique solution.
The constant represents an arbitrary additive term that can vary depending on the specific problem or additional constraints.
To determine the constant of integration, we may need additional information or consider specific conditions related to the problem.
It is also important to note that the accuracy of estimating the underlying function f(x - i) depends on the quality and quantity of the observed data points f'(x - i). More data points and precise measurements can lead to a better estimation of the underlying function.
Additionally, the behavior of the function at a specific point can provide valuable insights for determining the constant of integration and refining the estimation of the underlying function.
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