Answer:
10.88
Step-by-step explanation:
u do it like long multiplication just with decimals
6.8 times 1.6 = 10.88
Answer: 10.88
Step-by-step explanation:
6.8 x 1.6 = 10.88
you can multiply them without the decimals first then when you got the answer, you can count how many decimal places are there and place a decimal place where shoud be
Which equation represents a circle with the same center as the circle shown but with a radius of 2 units? (x – 4)2 (y – 5)2 = 2 (x – 4)2 (y – 5)2 = 4 (x – 5)2 (y – 4)2 = 2 (x – 5)2 (y – 4)2 = 4.
You can use the equation of the circle with center at (h,k) and the radius of f units.
The correct option for the given condition is
Option C: \((x-4)^2 + (y-5)^2 = 4\\\)
What is the equation of the circle with the center at (h,k) and radius of r units?If a circle has center at (h,k) and radius is of r units, then its equation is given as
\((x-h)^2 + (y-k)^2 = r^2\)
How to form the equation of the circle with given conditions?Since the graphed circle has center at x = 4 and y = 5, thus we have
(h,k) = (x coordinate of center, y coordinate of center ) = (4,5)
And since the radius of the needed circle is needed to be of 2 units, thus,
r = 2 units
Using the above specified formula, we get the equation of the needed circle as
\((x-h)^2 + (y-k)^2 = r^2\\(x-4)^2 + (y-5)^2 = 2^2 = 4\\\\(x-4)^2 + (y-5)^2 = 4\\\)
Thus,
The correct option for the given condition is
Option C: \((x-4)^2 + (y-5)^2 = 4\\\)
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charlie has $12 saved already. He earns another $10 for each lawn he mows. How many lawns must he now before he has $100 saved?
b) write the equation.
In the given figure ABCD, prove that
angleBCD= angleBAD+ angle ABC+angle ADC.
[Hint: Join A and C then extended AC to the point E]
We have proved that Angle BCD is equal to angle BAD plus angle ABC plus angle ADC, as required.
To prove that angle BCD is equal to angle BAD plus angle ABC plus angle ADC, we can use the following steps:
Step 1: Join points A and C with a line segment. Let's label the point where AC intersects with line segment BD as point E.
Step 2: Since line segment AC is drawn, we can consider triangle ABC and triangle ADC separately.
Step 3: In triangle ABC, we have angle B + angle ABC + angle BCA = 180 degrees (due to the sum of angles in a triangle).
Step 4: In triangle ADC, we have angle D + angle ADC + angle CDA = 180 degrees.
Step 5: From steps 3 and 4, we can deduce that angle B + angle ABC + angle BCA + angle D + angle ADC + angle CDA = 360 degrees (by adding the equations from steps 3 and 4).
Step 6: Consider quadrilateral ABED. The sum of angles in a quadrilateral is 360 degrees.
Step 7: In quadrilateral ABED, we have angle BAD + angle ABC + angle BCD + angle CDA = 360 degrees.
Step 8: Comparing steps 5 and 7, we can conclude that angle B + angle BCD + angle D = angle BAD + angle ABC + angle ADC.
Step 9: Rearranging step 8, we get angle BCD = angle BAD + angle ABC + angle ADC.
Therefore, we have proved that angle BCD is equal to angle BAD plus angle ABC plus angle ADC, as required.
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Given: Quadrilateral \(\displaystyle\sf ABCD\)
To prove: \(\displaystyle\sf \angle BCD = \angle BAD + \angle ABC + \angle ADC\)
Proof:
1. Draw segment \(\displaystyle\sf AC\) and extend it to point \(\displaystyle\sf E\).
2. Consider triangle \(\displaystyle\sf ACD\) and triangle \(\displaystyle\sf BCE\).
3. In triangle \(\displaystyle\sf ACD\):
- \(\displaystyle\sf \angle ACD = \angle BAD + \angle ADC\) (Angles of a triangle add up to \(\displaystyle\sf 180^\circ\)).4. In triangle \(\displaystyle\sf BCE\):
- \(\displaystyle\sf \angle BCE = \angle BAD + \angle ABC\) (Angles of a triangle add up to \(\displaystyle\sf 180^\circ\)).5. Since \(\displaystyle\sf \angle BCE\) and \(\displaystyle\sf \angle BCD\) are corresponding angles formed by transversal \(\displaystyle\sf BE\):
- \(\displaystyle\sf \angle BCE = \angle BCD\).6. Combining the equations from steps 3 and 4:
- \(\displaystyle\sf \angle BCD = \angle ACD = \angle BAD + \angle ADC\). - \(\displaystyle\sf \angle BCD = \angle BCE = \angle BAD + \angle ABC + \angle ADC\).Therefore, we have proven that in quadrilateral \(\displaystyle\sf ABCD\), \(\displaystyle\sf \angle BCD = \angle BAD + \angle ABC + \angle ADC\).
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which row of pascal’s triangle would you use to expand (2x 10y)15? row 10 row 12 row 15 row 25 how many terms are in this expansion? 3 terms
15th row of the Pascal's Triangle is used to expand \((2x+10y)^{15}\). There will be 16 terms in the expansion.
Pascal's Triangle is used to find the co-efficient for binomial expansions.
The nth row of the Pascal's Triangle gives the coefficients in the expansion of binomial expressions of degree n. For example, in the expansion of \((x+y)^2\) , the binomial coefficients are 1,2,1 which is given in the 2nd row of Pascal's Triangle. Also the expansion has three terms, therefore. The Pascal triangle starts with 0th row consisting of only 1.
Here the given expression is \((2x+10y)^{15}\) of degree 15. So its binomial coefficient is given in the 15th row of Pascal's triangle.
The number of terms in the binomial expansion of degree n will be n+1 because the coefficients in nth row will n+1 in number.
Hence there will be 16 terms in the expansion of \((2x+10y)^{15}\).
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Answer:
The person above helped, and below I've attached a ss with all of the parts of this question answered - Hope it helps!
Step-by-step explanation:
Brainliest would be very much appreciated :) - hope you have a good day!
Determine the value of the 10% trimmed mean. (Round your answer to four decimal places.)
0.2, 0.21, 0.26, 0.3, 0.33, 0.41, 0.54, 0.57, 1.41, 1.7, 1.84, 2.2, 2.26, 3.06, 3.24
The value of the 10% trimmed mean is approximately 1.3027. To calculate the 10% trimmed mean, we need to trim off the lowest and highest 10% of the data and then find the mean of the remaining values.
First, let's sort the data in ascending order:
0.2, 0.21, 0.26, 0.3, 0.33, 0.41, 0.54, 0.57, 1.41, 1.7, 1.84, 2.2, 2.26, 3.06, 3.24
Next, we calculate the number of values to trim from each end:
10% of 15 (total number of values) = 0.1 * 15 = 1.5
Since we can't remove half a value, we round up to the nearest whole number, which is 2.
Now, we remove the two lowest and two highest values:
0.26, 0.3, 0.33, 0.41, 0.54, 0.57, 1.41, 1.7, 1.84, 2.2, 2.26
Finally, we calculate the mean of the remaining values:
(0.26 + 0.3 + 0.33 + 0.41 + 0.54 + 0.57 + 1.41 + 1.7 + 1.84 + 2.2 + 2.26) / 11 = 14.33 / 11 ≈ 1.3027
Rounding to four decimal places, the value of the 10% trimmed mean is approximately 1.3027.
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Help, I'll give Brainliest to the correct answer!!
+400, +50, 50 - 400, 50 + (-400) = -350
+400, -120, -120 - 400, -120 + (-400) = -520
+400, -75 3/4, -75 3/4 - 400, -75 3/4 + (-400) = -475 3.4
-200, +610, 610 - (-200), 610 + 200 = 810
-200, -50, -50 - (-200), -50 + 200 = 150
-200, -500, -500 - (-200), -500 + 200 = -300
-200, 0, 0 + 200, 0 - (-200) = 200
-200, 120 1/2, 120 1/2 - (-200), 120 1/2 + 200 = 320 1/2
I think this might be the answer.
Is a dilation with a scale factor greater than 1 is a reduction?
When the scale factor is greater than one, then the dilation is not a reduction.
What is a dilation?
Dilation is a process of changing a thing. It is a process of transformation that to make the objects smaller or larger, with the use of specific scale factor.
The new figure that is the result of dilation is known as the image. Initial figure is referred to as the pre-image.
What is a center of dilation?
Center of dilation is the resizing that happens from a point. The objects/figures are expanded or contracted from the center of dilation.
Scale factor is a figure by which the size of any geometrical figure can be resized, with respect to its original size. The scale factor is multiplied to get image.
Figure size increased, when the scale factor is greater than 1.
Thus, the dilation will be a expansion, when the scale factor is a greater than one.
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x + 2y = -6
6x +2y =4
Step-by-step explanation:
um, I'm going to use elimination method to solve this simultaneous equation
x+2y=-6.......... equation 1
6x+2y=4........ equation 2
subtract equation 2 from equation 1
-5x = -10
x = -10/-5
x=2
substitute x=2 in equation 1
therefore equation 1 becomes
2+2y=-6
2y=-6-2
2y=-8
y=-8/2
y=-4
The line plot displays the number of roses purchased per day at a grocery store.
A horizontal line starting at 0 with tick marks every one unit up to 10. The line is labeled Number of Rose Bouquets, and the graph is titled Roses Purchased Per Day. There is one dot above 10. There are two dots above 1 and 4. There are three dots above 2 and 5. There are 4 dots above 3.
Which of the following is the best measure of center for the data, and what is its value?
The median is the best measure of center, and it equals 3.5.
The median is the best measure of center, and it equals 3.
The mean is the best measure of center, and it equals 3.
The mean is the best measure of center, and it equals 3.5.
The best measure of center for the data, and what is its value is: B. The median is the best measure of center, and it equals 3.
What is the measure of center for the data, and what is its value?To determine the best measure of center for the given data, we need to consider the shape of the distribution. From the line plot, we can see that the data is skewed to the right, with a longer tail on the right-hand side.
In such cases, the median is generally considered to be the best measure of center because it is less affected by extreme values and is a better representation of the typical value in the dataset.
To find the median, we need to arrange the data in ascending order:
1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 5, 5, 5, 5
There are 15 observations in the dataset, so the median will be the average of the 8th and 9th observations:
Median = (3 + 3) / 2
Median = 3
Therefore, the best measure of center for the given data is the median, and its value is 3.
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Represent -2/11, -5/11, -9/11 on a number line.
Answer:
-9/ 11 ____-5/11 _____ - 2/11
Step-by-step explanation:
-2/11, -5/11, -9/11
All the numbers are negative ; the fraction which is largest is 9/11 ; then 5 /11 ; then 2 /11 ; however, since they are negative, they largest fraction becomes the least value.
Numbers on a number line are arranged from least to highest. Hence the numbers will be arranged in a number line as follows :
-9/ 11 ____-5/11 _____ - 2/11
what is the minimal number such that any 3-by-3 matrix with of its entries equal to zero is non-invertible
Any 3 of those entries are equal to 0, the determinant will be 0, meaning the matrix is non-invertible.
The minimal number such that any 3-by-3 matrix with of its entries equal to zero is non-invertible is 3. This can be calculated by finding the determinant of the matrix. The determinant is the sum of the products of the entries in the matrix, each multiplied by its corresponding minor. If a 3-by-3 matrix has 3 of its entries equal to zero, the determinant will be equal to 0, which means the matrix is non-invertible. To calculate the determinant of a 3-by-3 matrix, use the formula.
Where a, b, c, d, e, f, g, h, i are the entries of the matrix. If any 3 of those entries are equal to 0, the any 3 of those entries are equal to 0, the determinant will be 0, meaning the matrix is non-invertible determinate will be 0, meaning the matrix is non-invertible.
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The graph of a quadratic function with vertex (1,-1) is shown in the figure below. Find the domain and the range. Write your answers as inequalities, using or as appropriate. Or, you may instead click on "Empty set" or "All reals" as the answer.
The domain of the function is all real numbers and range is y ≥ -1.
Since the vertex is at (1,-1), the axis of symmetry is x = 1.
This means that the domain of the function is all real numbers.
To find the range, we need to consider the y-values of the graph. Since the vertex is the lowest point of the graph, the range must be all y-values greater than or equal to -1.
However, since the parabola opens upwards, there is no upper bound on the y-values.
Therefore, the range is given by y ≥ -1.
Hence, the domain of the function is all real numbers and range is y ≥ -1.
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suppose a finite model for an incidence geometry satisfies the additional axiom: every line has exactly three points lying on it. what is the minimum number of points needed for such a geometry? why?
In an incidence geometry with the additional axiom that every line has exactly three points lying on it, the minimum number of points required is 4.
This is because a line must have at least two-points to exist, and if it has only two points, it is not possible to have another point lying on it (since every line must have exactly three points).
Hence, there must be at least 4-points to create two lines such that each line contains exactly three points.
Also, with 4 points, it is possible to create 6 lines such that each line contains exactly 3 points, forming a configuration known as the Fano-plane, which is the smallest example of an incidence geometry that satisfies the given axiom.
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largest possible number that equals 5000 when rounded to one significant figure
Answer:
four significant digits
Step-by-step explanation:
Please help I need an answer ASAP!!!!!!!
Answer:
A its the mos resonable one
solve the following
2(X+3)=X-4
Answer:
2(x+3)=x-4
2x+6=x-4
2x-x=-4-6
x=-10
Find the value of x and z
we have, the opposite angles at the vertex have the same measure, therefore:
\(\begin{gathered} 11x+54=12x+52 \\ 11x+54-54=12x+52-54 \\ 11x=12x-2 \\ 11x-12x=12x-2-12x \\ -x=-2 \\ x=2 \end{gathered}\)then,
\(\begin{gathered} angle1\colon11(2)+54=22+54=76 \\ \text{angle}2\colon\text{ 12(}2)+52=24+52=76 \end{gathered}\)and we have the sum of all 4 angles is equal to 360 and as I said before, the opposite angles by the vertex have equal measure, so:
\(\begin{gathered} angle\text{ 3 + 76 + 76 + z = 360} \\ \text{angle 3 +152 + z = 360} \\ \text{then, angle 3 = z } \\ z+152+z=360 \\ 2z+152=360 \\ 2z+152-152=360-152 \\ 2z=208 \\ \frac{2z}{2}=\frac{208}{2} \\ z=104 \end{gathered}\)answer: x = 2 and z = 104
How do you write the slope-intercept form of the equation of the line through the given point and parallel to the given line?.
The slope-intercept form of the equation of the line through the given point and parallel to the given line is y=x−14.
In the given question we have to write the slope-intercept form of the equation of the line through the given point and parallel to the given line.
The given points are (–2, –16).
The given equation of line is y = x – 5.
Standard equation of line is y=mx+c.
After comparing to the standard equation.
Slope m(1) = 1
The line passes through (−2,−16), so the point will satisfy the equation y=mx+c. So
−16=−2*1+c
Simlifying
−16=−2+c
Add 2 on both side, we get
c = −16+2
c = −14
As we know that if line is parallel then
m(1)=m(2)
So the value of solpe m = 1
Now the equation of line
y=1*x+(−14)
y=x−14
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The right answer is:
How do you write the slope-intercept form of the equation of the line through the given point and parallel to the given line?
Point (−2,−16), y = x – 5
A skydiver is planning her jump out of an airplane. Typically, she will jump at a height of 13,500 feet, and she will pull the cord when she is 5000 feet above the ground. If the equation for the distance traveled during freefall is given as d(t)=16t2 , how long should she wait before pulling the cord?
Skydiver should wait 23.04 sec before pulling the cord, after freefall.
what is freefall?
An item that is falling only due to gravity is said to be in free fall. Any item that is merely subject to the effects of gravity is referred to as being in free fall.Air resistance does not exist for falling objects in free fall.On Earth, all falling objects experience a downward acceleration of 9.8 m/s/s (commonly represented as 10 m/s/s in quick calculations).Height of jump = 13500ft
Height from which cord will be pulled = 5000ft
Freefall, d=13500-5000 =8500ft
Distance traveled during freefall, d=16t²
substituting values, we get,
8500=16t²
t=23.04 sec
Skydiver should wait 23.04 sec before pulling the cord, after freefall.
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Find the equation of the line through point (4,−7) and parallel to =−2/3+3/2 Use a forward slash (i.e. "/") for fractions (e.g. 1/2
HELP ASAP!!!!!!!!!!!
Answer:
C
Step-by-step explanation:
the statement (y<1/2x -4) reads "y is LESS than 1/2 x -4."
to fulfil this statement, follow these steps.
1) graph the line 1/2x -4, there will be a yintercept at (0,-4). Also the slope will be increasing (left to right) because 1/2 has no negative sign before it.
2) recognize the inequality sign. In this situation, the solution does NOT INCLUDE THE LINE, rather it includes the area BELOW/LESS THAN the line. If this, < had a line under it, it would mean less than OR equal to.
3) know that if the line is not included, the line will be broken. If the line IS included, which it is not, it would be a solid line.
Answer:
C
Step-by-step explanation:
First, graph the equation:
The y-intercept is -4.
And the slope is 1/2, an upward sloping line.
So, our graph should be either A, B, or C.
D is not correct, so eliminate that.
So, our inequality is:
\(y<\frac{1}{2}x-4\)
Note that this inequality is strictly less than. There's no "or equal to" bar. Therefore, our line should be dotted.
Thus, eliminate A and B.
So, C is our answer
Further notes:
The inequality sign means that y is less than the equation. In other words, our shaded region should be below the line.
In C, the shaded area is indeed below the line.
So, C is indeed our answer :)
PLEASEEE HELP ME WITH THIS QUESTION!!!!!!! ASAP PLEASE ANSWER IT CORRECTLY AND NO GUESSING!!!!!!
Which of the following is true about Debit Cards?
A= When you use a Debit Card you pay the bill at the end of the month with interest.
B= Debit cards withdraw money from your bank account
C= Debit cards are a way for you to borrow money.
Answer:
the answer
is b
i hope that helps
hello, could someone help me with this question, thank you.
It's C.
Basically, when youre dividing something, the bases would stay the same but the exponents would change. For division, you'd have to substract the exponent of the denominator from the denominator (of like bases, of course)
In this case, it's 10^8-(-3).
The only reason it's not 10⁵ is because of the negative 3. If it were a positive 3, it would become 10⁵.
Given the regression equation y-hat = 15.6 - 3.8x, the predicted y for x = 3 is ___________.
Work Shown:
y = 15.6 - 3.8x
y = 15.6 - 3.8*3
y = 4.2
a hospital director is told that 32% 32 % of the treated patients are uninsured. the director wants to test the claim that the percentage of uninsured patients is under the expected percentage. a sample of 160 160 patients found that 40 40 were uninsured. find the value of the test statistic. round your answer to two decimal places.
The value of the test statistic is -1.75.
To test the claim that the percentage of uninsured patients is under the expected percentage of 32%, we can use a one-sample z-test. The null hypothesis is that the true percentage of uninsured patients is equal to 32%, while the alternative hypothesis is that the true percentage is less than 32%.
Using the sample data, we can calculate the sample proportion of uninsured patients as 40/160 = 0.25. We can then calculate the standard error of the sample proportion as sqrt[(0.32 x 0.68)/160] = 0.0385.
The test statistic can be calculated as (0.25 - 0.32)/0.0385 = -1.75.
To find the p-value associated with this test statistic, we can use a standard normal distribution table or a calculator to find the probability of a z-score less than -1.75. The p-value is approximately 0.04.
Since the p-value is less than the typical significance level of 0.05, we reject the null hypothesis and conclude that there is evidence to support the claim that the percentage of uninsured patients is under the expected percentage of 32%.
Therefore, the correct answer is -1.75, which is the calculated value of the test statistic.
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I need help pleaseeeee
pls help i just need this question i'll give lost of points
Answer:
(a) 30 + Points = 50 so Points = 20
(b) 36 + Points = 50 so Points = 14
Step-by-step explanation:
To solve both parts a and b, you are asked to set up an addition problem and solve for the unknown. you are given the current points and the number of points you need to get there. your equation should look like the following:
(Point currently have) + (points still needed) = (total needed)
insert in your info:
(a) 30 + (points still needed) = 50
(b) 36 + (points still needed) = 50
rearrange to solve by subtracting the current points from the total points needed:
(a) points still needed = 50 - 30 = 20
(b) points still needed = 50 - 36 =14
HOPE THIS HELPS AND MAKES SENSE!!!
You will be catering a private party for 12 people. You decide to make 11 / 2-ounce cranberry-orange muffins, and you estimate that each person at the party will have three muffins each. Your recipe makes 15 pounds of dough and calls for 4 pounds of cranberries. How many ounces of cranberries will you need for the muffins for this party?
The proportion of cranberries required for the muffins is 4 pounds x 16 ounces/pound = 64 ounces of cranberries. Therefore, to make the muffins for the party, you will need 64 ounces of cranberries.
To calculate the amount of cranberries needed for the muffins at a party of 12 people, making 11/2-ounce muffins and assuming each person will have three muffins, we need to convert the measurements and quantities.
Given that each muffin weighs 11/2 ounces, and each person will have three muffins, we can calculate the total weight of muffins needed. 11/2 ounces is equivalent to 1.5 ounces, so each person will consume 1.5 ounces x 3 muffins = 4.5 ounces of muffins.
For a party of 12 people, the total amount of muffins required is 4.5 ounces/person x 12 people = 54 ounces of muffins.
Now, to determine the amount of cranberries needed for the muffins, we need to consider the recipe's proportion. The recipe makes 15 pounds of dough and calls for 4 pounds of cranberries. To convert pounds to ounces, we know that 1 pound is equal to 16 ounces.
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Using 3.14 for n, what is the volume, to the nearest tenth, of a cone that has a height and of 16 feet and a base with radius 5 feet
Answer: 418.7
Step-by-step explanation:
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A hall has 35 rows. Each successive row contains two additional seat. If the first row has 20 seats, how many seats are in the hall?
Answer:
There are 1,890 seats in the hall
Step-by-step explanation:
The number of seats in the first row = 20 seats
The number of rows in the hall = 35 rows
The number of additional seat per row = 2 Seat
Therefore, the sequence of seats in the hall is an arithmetic sequence with the first term, a = 25, the common difference, d = 2, and the number of terms, n = 35
The formula for finding the sum of n-terms of an arithmetic progression, Sₙ is given as follows;
Sₙ = n/2 × [2·a + (n - 1)·d]
Plugging in the values, we get;
Sₙ = 35/2 × [2 × 25 + (35 - 1)×2] = 1890 seats
Therefore, there are 1,890 seats in the hall.