Answer:
Yes.
Step-by-step explanation:
0.66 is 0.6600.
Answer:
Yes
Step-by-step explanation:
Just remove the two zeros in '0.6600'.
Therefore, 0.66 = 0.66
Hoped this helped.
Which derived character is placed immediately after that group on the cladogram?
Answer:
Step-by-step explanation:
One that has the next least in common with the rest.
Will mark as brainliest if correct
Answer:
62
Step-by-step explanation:
hope this helps
Office-chair racing is now an official sport in Japan. Teams of 3 race around a 200-meter circuit for 2 hours to see who can complete the most laps. Tonya, an office-chair racing coach, contacts the top 5 teams and randomly assigns them to complete a practice race using one of two popular brands of office chair.
Brand A and Brand B. In a different time period, the same teams complete a practice race using the opposite brand of chair. Here are the data:
Brand A 116 107 101 97 94
Brand B 114 102 100 94 90
Calculate the mean difference (Brand A - Brand B) and the standard deviation of the differences.
The mean difference between Brand A and Brand B is 3, and the standard deviation of the differences is approximately 1.58.
To calculate the mean difference and standard deviation of the differences between Brand A and Brand B, we need to perform the following steps:
Calculate the differences between the corresponding data points of Brand A and Brand B.
Brand A - Brand B: (116 - 114), (107 - 102), (101 - 100), (97 - 94), (94 - 90)
: 2, 5, 1, 3, 4
Calculate the mean difference:
Mean difference = (2 + 5 + 1 + 3 + 4) / 5
= 15 / 5
= 3
Calculate the squared differences of each value from the mean difference:
(2 - 3)², (5 - 3)², (1 - 3)², (3 - 3)², (4 - 3)²
1, 4, 4, 0, 1
Calculate the sum of the squared differences:
1 + 4 + 4 + 0 + 1 = 10
Calculate the variance of the differences:
Variance = sum of squared differences / (number of data points - 1)
= 10 / (5 - 1)
= 10 / 4
= 2.5
Calculate the standard deviation of the differences:
Standard deviation = square root of variance
=√(2.5)
≈ 1.58
Therefore, the mean difference between Brand A and Brand B is 3, and the standard deviation of the differences is approximately 1.58.
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Which comparison is correct?
140.07 = 140.7
140.07 < 140.7
140.07 > 140.7
The correct answer choice is B(third option)
140.07 is smaller than (<) 140.7
This is because there is no digit in the hundreths place in 140.07,while there is a 7 in the hundreths place. 0 is less than < 7, therefore
140.07 is smaller than 140.7
B.140.07 < 140.7
Hope this helps & good luck on your assignment <3 !!!
When multiplying a number by 104. how is the decimal point moved?
A. 5 places to the right
B. 5 places to the left
C. 4 places to the right
D. 4 places to the left
kate is remodeling her kitchen. she goes shopping for a refrigerator. the model price is $405, and the estimated energy cost per year is $36. if the model has an estimated lifetime of 10 years, what is the lifetime cost of the model? answer to integer without a unit.
The lifetime cost of the model is $765.
Kate is re-modelling her kitchen.
She is going shopping for a refrigerator.
The model price is $405, and the estimated energy cost per year is $36.
If the model has an estimated lifetime of 10 years,
Lifetime cost of the model:
The lifetime cost of the model is $765
Explanation: Given, The model price is $405
Estimated energy cost per year is $36.
The model has an estimated lifetime of 10 years.
Lifetime cost of the model can be calculated as follows:
Total lifetime cost = Initial cost + (Estimated energy cost per year × Estimated lifetime)
Initial cost = $405
Estimated energy cost per year = $36
Estimated lifetime = 10 years
Total lifetime cost = $405 + ($36 × 10)
Total lifetime cost = $405 + $360
Total lifetime cost = $765
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h(x)=-x^2+6x. So what is the value of h(2)
✩ Answer:
✧・゚: *✧・゚:*✧・゚: *✧・゚:*✧・゚: *✧・゚:*
\(\bold{Hello!}\\\bold{Your~answer~is~below!}\)
✩ Step-by-step explanation:
✧・゚: *✧・゚:*✧・゚: *✧・゚:*✧・゚: *✧・゚:*
✺ Quadratic polynomials can be factored using the transformation \(ax^2+bx+c=a(x-x_{1})(x-x_{2} )\), where \(x_{1}\) and \(x_{2}\) are the solutions of the quadratic equation \(ax^2+bx+c=0\):
\(-x^2+6x=0\)✺ All equations of the form \(ax^2+bx+c=0\) can be solved using the quadratic formula:
\(-b=\frac{+}\\\sqrt{b^2-4ac}\\~~~~~~~~~~~~~2a\)✺ The quadratic formula gives two solutions, one when ± is addition and one when it is subtraction:
\(x=\frac{\sqrt{-6\frac{+}\\\sqrt{6^2}}}{2(-1)}\)✺ Take the square root of \(6^2\):
\(x=\frac{\sqrt{-6\frac{+}\\{6}}}{2(-1)}\)✺ Multiply \(2\) times \(-1\):
\(x=\frac{\sqrt{-6\frac{+}\\{6}}}{-2}\)✺ Now solve the equation \(x=\frac{\sqrt{-6\frac{+}\\{6}}}{-2}\) when ± is plus. Add \(-6\) to \(6\):
\(x=\frac{0}{-2}\)✺ Divide \(0\) by \(-2\):
\(x=0\)-OR-
✺ Now solve the equation \(x=\frac{\sqrt{-6\frac{+}\\{6}}}{-2}\) when ± is minus. Subtract \(6\) from \(-6\):
\(x=\frac{-12}{-2}\)✺ Divide \(-12\) by \(-2\):
\(x=6\)✺ Optional : Factor the original expression using \(ax^2+bx+c=a(x-x_{1})(x-x_{2} )\). Substitute \(0\) for \(x_{1}\) and \(6\) for \(x_{2}\):
\(-x^2+6x=-x(x-6)\)✩ Answer:
✺ Factored Form: \(x(x-6)\)
✺ Exact Form: \(x=6\)
✺ Graph Point Form: \(x=(6,0)\)
\(Hope~this~helps~and,\\Best~of~luck!\\\\~~~~~-TotallyNotTrillex\)
"ටᆼට"
What are the coordinates of point F?
On a coordinate plane, point F is 4 units to the right and 2.5 units down.
(Negative 4, Negative 2 and one-half)
(Negative 4, 2 and one-half)
(4, negative 2 and one-half)
(4, 2 and one-half)
Answer:
(4, -2.5)
Step-by-step explanation:
In a family with 7 children, excluding multiple births, what is the probability of having 7 boys? Assume that a girl is as likely as a boy at each birth. Let E be the event that the family has 7 boys, where the sample space S is the set of all possible permutations of girls and boys for 7 children. Find the number of elements in event E, n(E), and the total number of outcomes in the sample space, n(S). n(E) = n(S)=
The probability of having 7 boys in a family with 7 children is 1 out of 128, as there is only one favorable outcome out of 128 total possible outcomes.
To find the probability, we need to calculate n(E) and n(S).
In this case, event E represents the scenario where all 7 children are boys. The sample space S consists of all possible permutations of boys and girls for the 7 children, which is 2^7 = 128.
This is because each child has 2 possibilities (boy or girl), and we multiply these possibilities for all 7 children.
Since event E includes only one specific outcome (all boys), n(E) is equal to 1. Therefore, both n(E) and n(S) are 1 and 128, respectively. The probability of having 7 boys is given by n(E)/n(S) = 1/128.
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Solve the equation for all real solutions.
4v^2+ 4v – 3 = 0
Answer:1/2,-4/3
Step-by-step explanation: Use quadratic formula
Answer:
v=− 3/2= -1.500
or v = 1/2 = 0.500
The approximate curve is an empirical formula equation and the method of finding such an approximating curve is called _________
Curve Fitting
Straight Line
Parabola
Arc
Ellipse
find the area of E?? i really need this done please and thank you
Answer: 24 square inches
Step-by-step explanation:
To get the whole area Multiply length x width
12 x 7 = 84
Now we get the area of the space in the rectangle
6 x 5 = 30 and multiply that by 2 since there are 2 spaces
in the rectangle.
30 x 2 = 60
84 - 60 = 24
If point C is not located between points A and B then AC+CB__ AB
Answer:
\(\neq\)
Step-by-step explanation:
If Point C was located between A & B, then:
\(AC+CB=AB\)
However, we are told Point C is not; therefore:
\(AC+AB\neq AB\)
More algebra, giving 15 points for this one.
Answer:
B
Step-by-step explanation:
11x - 6x + 20
combine like terms:
5x + 20
A normal population has a mean of 12.2 and a standard deviation of 2.5.
a. Compute the z value associated with 14.3 (Round your answer to 2 decimal places.)
b. What proportion of the population is between 12.2 and 14.3? (Round your answer to 4 decimal places.)
c. What proportion of the population is less than 10.0? (Round your answer to 4 decimal places.)
Answer:
Approximately 0.1894 or 18.94% of the population is less than 10.0.
Step-by-step explanation:
On use the z-score formula and the standard normal distribution.
a. To compute the z-value associated with 14.3, we use the formula:z = (x - μ) / σWhere:
x = 14.3 (the value)
μ = 12.2 (mean)
σ = 2.5 (standard deviation)
Substituting the values:
z = (14.3 - 12.2) / 2.5
z = 2.1 / 2.5
z ≈ 0.84
Therefore, the z-value associated with 14.3 is approximately 0.84.
b. To obtain the proportion of the population between 12.2 and 14.3, we need to get the area under the standard normal distribution curve between the corresponding z-scores.
Using a standard normal distribution table or a calculator, we can find the area associated with each z-score.The z-value for 12.2 can be calculated using the same formula as in part a:
z1 = (12.2 - 12.2) / 2.5
z1 = 0 / 2.5
z1 = 0
The z-value for 14.3 is already known from part a: z2 ≈ 0.84.
Now, we obtain the proportion by subtracting the area associated with z1 from the area associated with z2:
Proportion = Area(z1 < z < z2)
Using a standard normal distribution table or a calculator, we obtain:
Area(z < 0) ≈ 0.5000 (from the table)
Area(z < 0.84) ≈ 0.7995 (from the table)
Proportion = 0.7995 - 0.5000
Proportion ≈ 0.2995
Therefore, approximately 0.2995 or 29.95% of the population is between 12.2 and 14.3.
c. To obtain the proportion of the population less than 10.0, we need to get the area under the standard normal distribution curve to the left of the corresponding z-score.Using the z-score formula:z = (x - μ) / σ
Where:
x = 10.0 (the value)
μ = 12.2 (mean)
σ = 2.5 (standard deviation)
Substituting the values:
z = (10.0 - 12.2) / 2.5
z = -2.2 / 2.5
z ≈ -0.88
Now, we obtain the proportion by looking up the area associated with z ≈ -0.88 using a standard normal distribution table or a calculator:
Area(z < -0.88) ≈ 0.1894 (from the table)
Therefore, approximately 0.1894 or 18.94% of the population is less than 10.0.
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Jim is making a mixture in science class. Jim uses $5times 10{-3}$ liters of water. He uses $9times 10{-1}$ liters of salt.
When comparing exponential form of water and salt the result is obtained as option B: Jim uses about 1/200 as much water as salt.
What is an exponent?
The way of representing huge numbers in terms of powers is known as an exponent. Exponent, then, is the number of times a number has been multiplied by itself.
Amount of water used by Jim expressed in exponent form = 5 × 10^-3 liters
Amount of salt used by Jim expressed in exponent form = 9 × 10^-1 liters
To compare the measurements use the arithmetic operation of division.
Amount of water used / Amount of salt used
Substitute the value into the expression -
= (5 × 10^-3) / (9 × 10^-1)
= (5/9) × [10^(-3) - (-1)]
= (5 × 10^-2)/9
Simplify the expression further -
= 5/9 × 10²
= 5/900
= 1/180 ≈ 1/200
Therefore, the comparison gives result 1/200.
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Helpp!! Please answer both parts of the question will mark brainliest.
Answer:
Part A. x is greater than y
Part B. y is greater than x.
Step-by-step explanation:
Part A: if x=10+y, this means that x is 10 greater than y, meaning that x would be greater than y. for example, if y=5, then x=10+5, which would be 15.
Part B: if x=10-y, this means that x is 10 less than y, meaning that y is greater than x. for example, if y=9, then x=10-9, which would be 1.
Please simplify this expression
Answer:
2x-4 would be the expression simplified.
Step-by-step explanation:
5(x-2) = 5x-10
-3x(x-2) = -3x +6
Combine them by addition 5x-10+-3x+6
2x-4
Answer:
Answer is x= 2
A syllabus has the following weighted grade scale: 15% HW 60% Exams 25% Final The lowest exam from the class will be dropped. A student had the following scores: 100% HW 90% Exam 1, 86% Exam 2, 92% Exam 3, 84% Exam 4 78% Final. Calculate the final grade in the course.
To calculate the final grade in the course, we need to take into account the weighted grade scale and the fact that the lowest exam score will be dropped.
Let's break down the calculation step by step:
Calculate the average exam score after dropping the lowest score:
Exam 1: 90%
Exam 2: 86%
Exam 3: 92%
Exam 4: 84%
We drop the lowest score, which is Exam 2 (86%), and calculate the average of the remaining three exam scores:
Average exam score = (90% + 92% + 84%) / 3
= 88.67%
Calculate the weighted score for each category:
Homework (HW): 15% of the final grade
Exams (average of three exams): 60% of the final grade
Final Exam: 25% of the final grade
Weighted HW score = 100% * 15%
= 15%
Weighted Exam score = 88.67% * 60%
= 53.20%
Weighted Final Exam score = 78% * 25%
= 19.50%
Calculate the final grade:
Final Grade = Weighted HW score + Weighted Exam score + Weighted Final Exam score
Final Grade = 15% + 53.20% + 19.50%
= 87.70%
The final grade in the course, taking into account the weighted grade scale and dropping the lowest exam score, is 87.70%
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help me pleaseee xxoxo
Answer:
4cube×acube×b power 6
sorry if you don't understand
What is the value of result after the following partial code executes? int x,y,a,b; a=4
b=11
y=3
x=y+b% a /2−y
the expression y + b % a / 2 - y is equal to 3 + 1 - 3, which is equal to 1. Hence, the value of x is 1.
The value of result after the following partial code executes is 6. The following is the complete code after substituting the variables.
int x, y, a, b;
a = 4;
b = 11;
y = 3;
x = y + b %
\(a / 2 - y;\) Value of result after execution cout << "Result: " << x; \(cout << "Result: " << x;\)
Output is Result: 6The above code uses arithmetic operators to determine the value of x, which is the result.
The percentage operator calculates the remainder when b is divided by a, which is 3. 11 % 4 = 3
The division operator / then divides the result of the modulus operation by 2.
3 / 2 = 1 (remainder 1)
Therefore, the expression y + b % a / 2 - y is equal to 3 + 1 - 3, which is equal to 1. Hence, the value of x is 1.
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Round each fraction to the nearest whole, 1/2, or 0:
1. 1/2
12/5
2. 11/2
7/9
3. 1
4/9
4. 4
3 5/7
Answer:
1 2/5 = 1 1/2
7/9 = 1
4/9 = 1/2
3 5/7 = 4
Step-by-step explanation:
1. we must round 1 2/5
based on the answer choices we can determine that 1 1/2 is the most rational answer. This is because it is not only the only answer with the whole number, 1 but also 2/5 would round to 1/2.
2. We must round 7/9
This would round up to 1. This is because it is closest to the whole number, not 0 and not 1/2.
7 * 2 = 14
9 * 2 = 18
14/18 is only 4/18 away from being 1. This means that it would round up to 1.
3. we must round 4/9
This rounds to 1/2. If you multiply both side by 2:
4 * 2 = 8
9 * 2 = 18
8/18 for that to be 1/2 it would need 1/18. Thus this rounds up to 1/2.
4. We must round 3 5/7
5/7 would round up to a whole number.
3 + 1 = 4
Thus 3 5/7 = 4 when rounded to the nearest whole number.
the line defined by y = 6 – 3x would slope up and to the right.
The line y = 6 - 3x has a positive slope and is upward and to the right.
To determine the slope of the line, we can compare the equation to the standard slope-intercept form y = mx + b, where m represents the slope. In this case, the equation is y = 6 - 3x, so the coefficient of x, -3, represents the slope.
Since -3 is negative, the line slopes downward and to the right. However, if we rewrite the equation as y = -3x + 6, the slope becomes positive (+3). Therefore, the corrected equation y = 6 - 3x represents a line that slopes upward and to the right.
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Find three solutions of the equation. y=-2x-1 a. (–2, 3), (1, –3), (2, –4) c. (1, –3), (0, –1), (–1, 0) b. (–2, 3), (1, –3), (0, –1) d. (0, –1), (3, –9), (–2, 3)
The three solutions of the equation y = -2x - 1 are (–2, 3), (1, –3), and (2, –4).
To find the solutions, we substitute different values of x into the equation and solve for y.
For the first solution, when x is –2, we have y = -2(-2) - 1 = 3. Therefore, the first solution is (-2, 3).
For the second solution, when x is 1, we have y = -2(1) - 1 = -3. Thus, the second solution is (1, -3).
For the third solution, when x is 2, we have y = -2(2) - 1 = -4. Hence, the third solution is (2, -4).
These three points satisfy the equation y = -2x - 1, and therefore, they are the solutions of the equation. They represent coordinate pairs (x, y) where the equation holds true.
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Please answer for brainliest!
Answer:
t>28
Step-by-step explanation:
I need help :(:(:(:(
The resulting matrix of the row operation is given as follows:
\(R = \left[\begin{array}{ccc}7&4.5&-6\\-6&-3&12\end{array}\right]\)
How to find the resulting matrix?We apply the row operation on the original matrix, given as follows:
\(A = \left[\begin{array}{ccc}4&3&0\\-6&-3&12\end{array}\right]\)
The operation is given by:
\(R_1 = R_1 - 0.5R_2\)
That is, applying to each element, we have that:
4 - 0.5(-6) = 7.3 - 0.5(-3) = 4.5.0 - 0.5(12) = -6.Hence the resulting matrix is:
\(R = \left[\begin{array}{ccc}7&4.5&-6\\-6&-3&12\end{array}\right]\)
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sketch a graph of x = − 2 cos ( t ) , y = − 1 sin ( t ) , 0 ≤ t < 2 π .
The graph of the parametric equations x = -2cos(t) and y = -sin(t) within the range 0 ≤ t < 2π is an ellipse centered at the origin, with the major axis along the x-axis and a minor axis along the y-axis.
To sketch the graph of the parametric equations x = -2cos(t) and y = -sin(t), where 0 ≤ t < 2π, we need to plot the coordinates (x, y) for each value of t within the given range.
1. Start by choosing values of t within the given range, such as t = 0, π/4, π/2, π, 3π/4, and 2π.
2. Substitute each value of t into the equations to find the corresponding values of x and y. For example, when t = 0, x = -2cos(0) = -2 and y = -sin(0) = 0.
3. Plot the obtained coordinates (x, y) on a graph, using a coordinate system with the x-axis and y-axis. Repeat this step for each value of t.
4. Connect the plotted points with a smooth curve to obtain the graph of the parametric equations.
The graph will be an ellipse centered at the origin, with the major axis along the x-axis and a minor axis along the y-axis. It will have a vertical compression and a horizontal stretch due to the coefficients -2 and -1 in the equations.
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The M & P Pencil company that makes mechanical pencils expects to have two defective pencils for every 125 made. What is the number of defective pencils they will have in a batch of 4,375?_________
CAN YOU GUYS PLEASE HELP ME OUT!!!
Answer:70 i believe
Step-by-step explanation:
(4,375/125)=35
35*2=60
Help me fast please
Answer:
I think the answer is
Step-by-step explanation:
50 feet tall
Determine if the following statement is true or false. Alex calculated a correlation coefficient of -1.5. He made a mistake in his calculation since the correlation coefficient has to be between - 1 and 1. The statement is
(1) false
(2) true.
Answer:
(2) The statement is true.
-1 < r < 1