Answer:
36
I looked it up on
Given m|n, find the value of x.
(8x-7)°
(9x-28)
PLEASE HURRY!!!
Answer:
x = 21
General Formulas and Concepts:
Geometry
Corresponding Angles - Angles that are congruent to each other and occur with parallel linesStep-by-step explanation:
Step 1: Identify
We see that the measures given are Corresponding Angles
Step 2: Solve for x
Set up equation: 8x - 7 = 9x - 28Subtract 8x on both sides: -7 = x - 28Add 28 on both sides: 21 = xRewrite: x = 21Can anyone explain this step-by-step?
4(10x - 20) = 2,000
Answer: x = 52
Step-by-step explanation:
You'd first deal with the 4 outside the parentheses, multiplying 10x-20 by 4. This would result in 40x - 80 = 200.
You'd then further isolate x, adding 80 on both sides, resulting in 40x = 2080. Divide by 40 on both sides and You'd get your answer of x = 52.
A traditional Haida hand drum has a diameter of 14 7/8in. And is 3in deep. What is the minimum amount of hide used to make the drum if the hide covers only the top and lateral surfaces?
Using the formula of lateral area of a cylinder, the minimum amount of hide required is 0.202 squared meters
What is the minimum amount of hide usedThe minimum amount of hide used to make the drum can be calculated by finding the surface area of the top and lateral surfaces of the drum.
First, we need to convert the diameter of the drum from inches to a usable unit, such as feet or meters. Let's convert it to meters: 14 7/8 inches = 0.378 meters (approximately).
Next, we'll find the surface area of the top and lateral surfaces. The top surface area is simply the area of a circle, which is π times the radius squared. The radius of the drum is half the diameter, or 0.378/2 = 0.189meters. So, the top surface area is π * 0.189^2 = 0.112 square meters.
The lateral surface area can be found by calculating the circumference of the drum (2 * π * radius) and multiplying it by the depth of the drum (3 inches = 0.0762 meters). This gives us 2 * π * 0.189 * 0.076 = 0.09 square meters.
Finally, we add the surface area of the top and lateral surfaces to find the minimum amount of hide required: 0.112 + 0.09 = 0.202 square meters. This is the minimum amount of hide needed to cover only the top and lateral surfaces of the drum.
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An airline claims that it rarely loses a passenger's checked luggage, and, if checked luggage is lost, 90% of the luggage is recovered and returned to the owner within 24 hours. A consumer group believes the 24-hour recovery rate of lost luggage is actually lower (worse) than the airline's claim. They surveyed a large random sample of the airline's customers and found that 103 of 122 people who had lost luggage were reunited with the missing items within 24 hours. Is this enough evidence to claim the proportion of people who lost luggage with this airline a
The number that corresponds to the null hypothesis and the alternative hypothesis will be 3 and 6 respectively.
What is a null hypothesis?Specify the correct number from the list below that corresponds to the appropriate null and alternative hypotheses for this problem.
It should be noted that the null hypothesis suggests that there's no statistical relationship between the variables.
The alternative hypothesis is different from the null hypothesis as it's the statement that the researcher is testing.
In this case, the number that corresponds to the null hypothesis and the alternative hypothesis will be 3 and 6 respectively.
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The temperature is dropping at a rate of five degrees per hour.
Let d represent the number of degrees the temperature drops.
Let t represent the number of hours that pass.
Which is the independent variable?
A. the number of hours
B. the number of degrees the temperature drops
C. the rate at which the temperature drops
D. the day of the week
Answer: A
Step-by-step explanation: Because in a equation there will be an independant variable and the number of hours would be the independent which is t.
Answer the number of degrees the temperature drops
Step-by-step explanation:
what would be the measure of angle A?
A. 70 degrees
B. 79 degrees
C. 55 degrees
D. 44 degrees
Answer:
D because that is the smallest angle on there baby doll
Step-by-step explanation:
have a nice day sugar bear
Answer:
D
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Sum the 3 angles and equate to 180
4x + 8x - 9 + 57 = 180, that is
12x + 48 = 180 ( subtract 48 from both sides )
12x = 132 ( divide both sides by 12 )
x = 11
Thus
∠ A = 4x = 4 × 11 = 44° → D
Part 1: How's the weather?
Investigate the weather forecast in your city.
Record the high and low temperatures that are forecast for the next 7 days in the table below. In the columns titled, Difference," record the change in temperature from the day before. To do this, subtract the previous temperature from the current temperature Be sure to use positive and negative numbers as needed! For example, if yesterday’s temperature was 70 and today’s temperature was 65, the difference is 65 – 70 = -5.
Date
High Temperature
Subtract previous temperature from current temperature
Difference
Low Temperature
Subtract previous temperature from current temperature
Difference
1
68
-N/A-
-N/A-
57
-N/A-
-N/A-
2
60
60-36=24
24
36
36-24=12
12
3
60
60-30=30
30
30
30-30=0
0
4
69
69-31=39
39
31
39-31=8
8
5
76
76-47=31
31
47
47-31=10
10
6
82
82-56=26
26
56
56-26=30
30
7
83
83-63=20
20
63
63-20=43
43
Note: The columns for Day One's subtraction and difference cannot be filled in. As this is the first data point, there is no previous temperature to subtract.
Write a mathematical expression using the information from your table to answer the following questions:
What is the mean change in the forecasted high temperatures over the next 7 days? Remember, this can be found by averaging the values in the Difference column for the high temperatures. Show your work and steps. If your answer is not an integer, explain what two integers your answer is between.
What is the mean change in the forecasted low temperatures over the next 7 days? Remember, this can be found by averaging the values in the Difference column for the low temperatures. If your answer is not an integer, explain what two integers your answer is between.
The average change in high temperatures over the next 7 days is 2.3. On the other hand, the average low temperature is 2.8.
How to calculate the average?To calculate the average of several values, we must perform a two-step mathematical operation:
We must add all the values.We must divide the previous result by the number of values we have.Below is the example with the values in the table.
High temperature:
1 + 3 + 2 + 2 + 5 + 1 = 1414/6 = 2.3Low temperature:
3 + 1 + 3 + 4 + 4 + 2 = 1717/6 = 2.8Learn more about average in: https://brainly.com/question/2426692
Question
Which number line represents the solution to the inequality 5 − 3x ≤ 11?
-10 = -b/4. What is the answer, I can't find it.
Answer:
b is 40
Step-by-step explanation:
Answer:
I think b = 40
Step-by-step explanation:
A parabola is the collection of points (x, y) whose distance from (3, 4) is the same as the distance from the line y = 2. Which form does the equation of the given parabola fit? A. (x−h)2=4c(y−k)
B. (y−k)2=4c(x−h)
Find h, k and c.
Sketch the parabola.
The equation of the given parabola fits the form (y−k)²=4c(x−h).
How can we determine that the equation of the given parabola fits the form (y−k)²=4c(x−h)?The question specifically asks for the form of the equation that fits the given parabola. Based on the provided options A and B, the equation (y−k)²=4c(x−h) matches the form required.
The parameters h, k, and c in the equation represent the vertex coordinates (h, k) and the focal length. To find the specific values of h, k, and c, further analysis and calculations are needed using the information given in the question, such as the distances between the vertex, focus, and directrix.
These calculations would allow for the determination of the exact equation and the sketching of the parabola.
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which equation of the least squares regression line most closely matches the data set?
The equatiοn οf the least squares regressiοn line which mοst clοsely matches the data set is y = 3.5 x + 43.8
Hοw tο sοlve fοr the data set?Tο sοlve fοr the data set, lets lοοk at the table,
X 1190 1992 1994 1996 1998
Y 45 51 57 61 75
Let the equatiοn that shοws the abοve data be
y = b + a x ---------(1)
Where, a = Σy Σx² - Σx Σxy
And, b = (Σxy - Σx Σy) / n Σx² -(Σx)²
By the abοve table,
Σx=20
Σxy = 1296
Σx² = 120
Σy=289
By substituting these values in the abοve value οf a and b,
We get b = 43.8 and a = 3.5
Substitute this value in equatiοn (1)
We get, the equatiοn that shοws the given data is,
y = 3.5 x + 43.8
Therefοre, οptiοn 3 is cοrrect.
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Which statement is true?
Answer:
D
Step-by-step explanation:
we can measure rate by using rise over run
object 1: 3/2
object 2: 2/3
subtract and get answer
Answer:
d is right
Step-by-step explanation:
Cedarburg's zoo has two elephants. The male elephant weighs 3 3/4 tons and the female
elephant weighs 7/12 of a ton. How much more does the male weigh than the female?
Answer:
3.16666667 tons
Step-by-step explanation:
hope this helps have a good evening
Round 54,878 to the nearest ten thousand.
Answer:
50,000
Step-by-step explanation:
hope this helps c:
An aquarium can be modeled as a right rectangular prism and it can hold 540 cubic inches of water when it is full. Its width is 6 in and height is 5 in. Find the length of the aquarium in inches. Round your answer to the nearest tenth if necessary.
The required length of the right rectangular prism is 18 in whose volume is 540 cu. in
What is a rectangular prism?Having six faces, a rectangular prism is a three-dimensional shape (two at the top and bottom and four are lateral faces). The prism's faces are all rectangular in form. There are three sets of identical faces as a result. A rectangular prism is often referred to as a cuboid because of its form. A rectangular prism may be found in everyday objects like a geometry box, notebooks, diaries, and rooms.
Rectangular prism characteristics
There are 6 faces, 12 edges, and 8 vertices on a rectangular prism.The rectangular prism's top and bottom are always rectangles.It has three dimensions, or length, breadth, and height, much like a cuboid.opposing face pairs are identical or coincidentThe lateral sides of a right rectangular prism are rectangle-shaped.The lateral faces of an oblique rectangular prim are parallelograms.Its cross-section is rectangular in shape.It has a perfect cuboid appearance.There are two categories into which rectangular prisms can be divided. These are:
Right Rectangular PrismOblique Rectangular PrismA rectangular prism is a prism with rectangular bases. A right rectangular prism is a prism with six rectangle-shaped faces with angles that are all right angles.
Vertices of a rectangular prism = 8
Edges of a rectangular prism = 12
Faces of a rectangular prism= 6 (including bases)
total volume of the prism = 540 cubic inches.
Width = 6 in
Height = 5 in
We know volume is length * breadth* height
⇒ 540 = 5*6* length
⇒length = 18 in
The required length of the right rectangular prism is 18 in.
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In the figure, AOB and COD are straight lines. Find x and y.
E
A
20
65
B
The image of the straight lines is missing so i have attached it.
Answer:
x = 20°
y = 120°
Step-by-step explanation:
From the image attached, we can say that;
3x + (7x - 20) = 180
This is because sum of angles on a straight line is 180°
Thus;
3x + 7x - 20 = 180
10x = 180 + 20
10x = 200
x = 200/10
x = 20°
Also,3x + y = 180
Because sum of angles on a straight line is 180°. Thus;
3(20) + y = 180
60 + y = 180
y = 180 - 60
y = 120°
1. The heights of American adult males are normally distributed with a mean of 177 cm and a standard deviation of 7.4 cm. Use the Empirical Rule to find the range of heights that contain approximately(a) 68% of the data cm -- cm(b) 95% of the data cm -- cm(c) 99.7% of the data cm -- cm
Can someone please exlpain how to do this???
Answer:
40. A c=60
41 B z= 40
Step-by-step explanation:
The sum of the angles in a triangle is 180
40. 61+59+c = 180
Combine like terms
120+c = 180
c = 180-120
c =60
41. 90+50+z = 180
140 +z = 180
z = 180-140
z = 40
Determine the measure of the interior angle at vertex F
Answer:
72
Step-by-step explanation:
The interior angles of a 6 sided figure add to (n-2) * 180
where n is the number of sides
(6-2) *180
4*180
720
2x+4x+4x+4x+4x+2x = 720
20x = 720
Divide by 20
20x/20 = 720/20
x =36
We want <F
<F = 2x = 2*36 = 72
A company makes cones out of solid foam. Each cone has a height of inches, and its base has a radius of inches. How much foam is needed to make cones?
The total foam needed to make n cones is (n/3)πr^2h cubic inches.
What is the total volume of foam required to manufacture a certain number of cones with a given height and base radius?The volume of a cone can be calculated using the formula:
V = (1/3)πr^2h
where r is the radius of the base, h is the height, and π is the mathematical constant pi.
In this case, the height of each cone is given as h inches, and the radius of the base is given as r inches. So, the volume of each cone can be calculated as:
V = (1/3)πr^2h
Now, let's assume that the company wants to make n cones. Then, the total amount of foam needed to make these cones would be:
Total foam needed = n × V
Substituting the expression for V, we get:
Total foam needed = n × (1/3)πr^2h
Therefore, the total foam needed to make n cones is (n/3)πr^2h cubic inches.
Note that the given values of h and r are necessary to compute the total foam required.
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Which of the following will have a unit rate of 50 miles per hour
Answer:
Option J
Step-by-step explanation:
Given the following question:
In order to find the answer, we simply divide the miles by the hours to find the answer.
\(\frac{m}{h}\)
Option F:
\(210\div4=52.5\)
\(=52.5\)
Option G:
\(300\div5=60\)
\(=60\)
Option H:
\(250\div4=62.5\)
\(=62.5\)
Option J:
\(175\div3.5=50\)
\(=50\)
In order to have a unit rate of 50 miles per hour you will have to drive "175 miles in 3.5 hours" or option J.
Hope this helps.
Simply divide the Miles and Hours in each choices until you get the 50 miles per hour.
\(175 \div 3.5 = 50 \: miles\)
what are the vertices of this ellipse? graph (-4, 2) and (4, 2) (2 , 2) and (2 , 2) (-5, 5) and (-5, -1) (-9, 2) and (-1, 2)
The vertices of the ellipse are (-4,2) and (4,2), since these points lie on the major axis of the ellipse which is horizontal.
Two of the focuses given in the issue, (−4,2) and (4,2), are both situated on a similar even line. This implies that the significant hub of the oval should be level. Two different focuses given in the issue, (2,2) and (- 9,2), are likewise situated on this level line. Thusly, the focal point of the oval is the midpoint between the focuses (- 4,2) and (4,2), which is (0,2).
The other two focuses given in the issue, (−5,5) and (−5,−1), are situated on an upward line that goes through the focal point of the oval. This implies that the minor pivot of the oval should be vertical.
The vertices of the oval are the places where the significant hub meets the circle. Since the significant hub goes through the focuses (−4,2) and (4,2), the vertices of the oval are (- 4,2) and (4,2).
In this way, the vertices of the oval are (- 4,2) and (4,2).
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The tree diagram represents the sample space for the repeated experiment of a coin being tossed 4 times.
Determine P(at least 2 heads).
0.8125
0.6875
0.4375
0.0625
The probability of obtaining at least 2 heads is 0.6875.
option B.
What is the probability of getting at least 2 heads?
The probability of obtaining at least 2 heads in 4 coin tosses can be calculated by adding the probabilities of getting exactly 2 heads, exactly 3 heads, and exactly 4 heads. This can be done using the binomial distribution formula:
P(X >= 2) = P(X = 2) + P(X = 3) + P(X = 4)
Where;
X is the number of heads in 4 coin tossesEach coin toss has a probability of 0.5 of landing heads.
P(X = 2) = 4C2 x (0.5)^2 x (0.5)^2 = 6 x 0.25 x 0.25 = 0.375
P(X = 3) = 4C3 x (0.5)^3 x (0.5)^1 = 4 x 0.125 x 0.5 = 0.25
P(X = 4) = 4C4 x (0.5)^4 = 1 x 0.0625 = 0.0625
The total probability is calculated as follows;
P(X >= 2) = 0.375 + 0.25 + 0.0625 = 0.6875
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Answer:
The probability of obtaining at least 2 heads is 0.6875.
option B.
Step-by-step explanation:
Find the scale factor of the dilation. Then tell whether the dilation is a reduction or an enlargement
Answer:
The answer is "\(\frac{3}{7}\)"
Step-by-step explanation:
Please find the complete question:
The dilation scale factor will be the same:
\(=\frac{\text{Picture to Center Gap}}{\text{Related pre-image distance to the middle}}\)
Throughout the picture, the distance is \(CP'=6\), while the equivalent distance is \(CP=14\). The factor of scale is then\(=\frac{CP'}{CP} =\frac{6}{14} =\frac{3}{7}\)
The decrease because if a factor of scale is below 1 and a factor of scale is higher than 1. Dilation is a reduction since \(\frac{3}{7}<1\), therefore the scale factor is \(\frac{3}{7}\).
The scale factor of the given dilation is; 6/14 and the dilation is a reduction
Transformations
The image of the object undergoing transformation is missing and so i have attached it.
From the attached object, we se that CP = 14.
Also CP' = 6
Thus; Scale factor is 6/14
Now, reduction is reducing the dimensions while enlargement is increasing the dimensions by a scale factor.
Since the denominator of the scale factor is greater than the numerator, then there is a reduction.
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khloe walks from school 20 miles due west, 8 miles due north, and 3 miles due east how far is khloe from school?
The approximate distance between Khloe and school is given by 18.78 miles.
Representing Khloe's movements on a coordinate plane.
Let us assume that Khloe's starting point (her school) is at the origin (0,0).
She walks 20 miles due west,
which means she moves 20 units to the left on the x-axis. Her new position is (-20,0).
She then walks 8 miles due north,
which means she moves 8 units up on the y-axis.
Her new position is (-20,8).
Finally, she walks 3 miles due east,
which means she moves 3 units to the right on the x-axis.
Her new position is (-17,8).
Distance between Khloe's final position and her starting point (the school),
Use the Pythagorean theorem,
Distance = √((change in x)^2 + (change in y)^2)
⇒Distance = √((-17-0)^2 + (8-0)^2)
⇒Distance = √(289 + 64)
⇒Distance = √353
⇒Distance ≈ 18.78 miles
Therefore, Khloe is approximately 18.78 miles away from her school.
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Marjane wants to create a set of data with 6 values. She wants the mode to be as good as the median to represent the data set. Which set of data best represents what Marjane could create?
24, 24, 25, 29, 29, 29
24, 25, 26, 27, 30, 30
24, 25, 25, 25, 26, 26
24, 24, 25, 26, 26, 27
As per the median, the set of data that fulfilling Marjane's requirement is 24, 25, 25, 25, 26, 26 (option c).
In statistics, data is a collection of numbers or values that represent a particular phenomenon. One way to measure central tendency, or the typical or representative value of the data, is through the median and the mode.
The median is the middle value when the data is arranged in numerical order, and the mode is the value that appears most frequently.
The third set of data is 24, 25, 25, 25, 26, 26.
The median is the middle value, which is also (25+25)/2 = 25.
The mode is the value that appears most frequently, which is 25.
Therefore, the mode and median are the same, fulfilling Marjane's requirement.
Therefore, the correct option is (c).
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Simplify 5 · P · 2.
A. 10P
B. 52P
C. 7P
Answer:
Step-by-step explanation:
5 x 2 = 10
Pretty sure this is right but I'm not 100 percent sure!
Answer: 10P ==> A
Step-by-step explanation:
5 · P · 2= 5 · 2 · P ==> Commutative property of multiplication
5 · 2 · P=
10 · P=10P ==> A
ANSWER FOR BRAINLIST AND HEARTS 30 POINTS!
Calculate the length between the following
points using the distance formula.
Help please
Answer:
S^2 = ((9 - (-3))^2 + ((3 - (-2))^2 = 12^2 + 5^2 = 169
S = (169)^1/2 = 13
Can someone please help I need this fast
Answer:
11
Step-by-step explanation:
Let's solve your equation step-by-step.
2(x-4)+3=17
(2x-2·4)+3=17
(2x-8)+3=17
2x-5=17
(2x-5)+5=17+5
2x-5+5=22
2x=22
\(\frac{2x}{2}\)=\(\frac{22}{2}\)
x=2·11/2
x=11