Answer:
Step-by-step explanation:
This is a trick question, about the red marks again. those marks are important b/c they tell you that the lengths are the same, so that the angles MUST also be the same. That is , D and E are equal
so set up your equations with that info
180 = 84 +2p
now use your algebra skillz to solve
180-84 / 2 = p
96/2 = p
48 = p
see??
I need help with this equation
Equation: m - r = h
Since, h is found by the subtraction from heart rate r and maximum heart m.
By Benjemin
What is the ordered pair for letter R in the image to the left? A (5, 1) B.) (1,5) C. (5,0) D. (0,5)
Answer:
Your answer would be D. (0,5)
Step-by-step explanation:
What does rotating 90 degrees counterclockwise mean?
Answer:
Step-by-step explanation:
Rotations About The Origin
When rotating a point 90 degrees counterclockwise about the origin our point A(x,y) becomes A'(-y,x). In other words, switch x and y and make y negative.
How many years in a decade is a century?
Answer:
100 years is a century
Step-by-step explanation:
everything is on the picture
Answer:
I believe its A
Step-by-step explanation:
Sorry if im wrong
Help please!!!!!!!!!!!!!!!!!! marking brainliest for correct answer!!!!!!!!!!!
Step-by-step explanation:
angle 2 = 49
angle 1 = 131
angle 3 = 112
plz mark my answer as brainlist.hope this will be helpful to you ☺️.
Question 1
On page 179 of your textbook, what percent of group A are Blue squares? What percent of group B are Blue squares? What percent of group C are Blue squares?
The Percent of Blue sqaures out of the total for Group A is _ %.
The Percent of Blue sqaures out of the total for Group B is _ %.
The Percent of Blue sqaures out of the total for Group C is _ %.
Answer:
The Percent of Blue sqaures out of the total for Group A is 75%.
The Percent of Blue sqaures out of the total for Group B is 60%.
The Percent of Blue sqaures out of the total for Group C is 66.66666%.
what is 0.1562 rounded to the nearest hundredth place
14. section 7.3; problem 2: interpretation a. we are 90% certain that the difference in percentages of men and women experiencing food cravings fall within in the specified interval. b. we are 90% certain that the percentages of men and women experiencing food cravings both fall within in the specified interval. c. 90% of men and women feel that the difference report experiencing food cravings a percentage of the time, specified within the given interval. d. the specified interval represents 90% of the data for men and women having food cravings.
The correct interpretation is option (a). It states that we are 90% certain that the difference in percentages of men and women experiencing food cravings falls within the specified interval.
Your question is asking for the correct interpretation of a 90% confidence interval for the difference in percentages of men and women experiencing food cravings. Here are the interpretations of each statement:
a. We are 90% certain that the difference in percentages of men and women experiencing food cravings falls within the specified interval.
b. We are 90% certain that the percentages of men and women experiencing food cravings both fall within the specified interval.
c. 90% of men and women feel that the difference report experiencing food cravings a percentage of the time, specified within the given interval.
d. The specified interval represents 90% of the data for men and women having food cravings.
This interpretation accurately reflects the confidence interval for the difference in percentages between the two groups.
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Help!! Stuff about triangles
Answer:
3
Step-by-step explanation:
Since \(\angle A \cong \angle A\) by the reflexive property and \(\angle ABC \cong \angle ADE\) since they are both right angles, \(\triangle ABC \sim \triangle ADE\) by AA.
It follows that:
\(\frac{x}{9}=\frac{5}{9+6} \implies x=3\)
PLEASE HELP ME PLEASE AS SOON AS YOU CAN
EXPLAINATION = BRAINLIEST
THANK YOU SO MUCH
Answer:
35.18576
Step-by-step explanation:
use eqation E
Answer:
If the angle is in radians...
Area of sector =½r²¢
Where ¢ is theta.
Since Our angle is degree
We use
Area of Sector = ¢/360 x πr²
¢=theta
radius = Diameter/2
radius = 16/2 = 8m
Area = 126/360 x π x 8²
= 112π/5
=70.37
Picture attached help please!
The missing lengths in the triangles are h = 3/2√2 and b = 4√3
How to determine the missing lengthsTriangle a and b
From the question, we have the following parameters that can be used in our computation:
A special right triangle
For a right triangle with an angle of 45 degrees
The measure of the leg is
h = Hypotenuse/√2
So, we have
h = 3/√2
Evaluate
h = 3/2√2
For the other triangle, we have
sin(60) = b/6
So, we have
b = 6/sin(60)
Evaluate
b = 4√3
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Question 2 0/1 pt 100 99 Suppose y = anx" on an open interval I that contains the origin. Express the following as a simplified power series in 2 on I. n=0 (5+ – 4x)y" + (2x)y' + 3y M8 an +2 + 10 an +1 + an."
The expression can be expressed as a simplified power series in 2 on interval I as:
n=0 2^n*t^n [an+2 + 10an+1 + an]
To express the given expression as a simplified power series in 2 on interval I, we need to find the derivatives of y and substitute them into the expression.
First, we find the derivatives of y:
y' = an(nx^(n-1)) = nanx^(n-1)
y" = nan(n-1)x^(n-2)
Substituting y', y", and y into the given expression, we get:
(5 - 4x)(nan(n-1)x^(n-2)) + (2x)(nanx^(n-1)) + 3(anx^n)
= 5nan(n-1)x^n - 4nan(n-1)x^(n+1) + 2nanx^(n+1) + 3anx^n
Now we can express this as a power series in 2 by substituting x = 2t:
= 5nan(n-1)(2t)^n - 4nan(n-1)(2t)^(n+1) + 2nan(2t)^(n+1) + 3an(2t)^n
= 5nan(n-1)2^n*t^n - 8nan(n-1)2^(n+1)t^(n+1) + 2nan2^(n+1)t^(n+1) + 3an2^n*t^n
= 2^n*t^n [5nan(n-1) - 8nan(n-1)2t + 2nan(2t) + 3an]
= 2^n*t^n [an+2 + 10an+1 + an]
Therefore, the given expression can be expressed as a simplified power series in 2 on interval I as:
n=0 2^n*t^n [an+2 + 10an+1 + an]
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one lot must be ten meters longer than it is wide, and the total area must be 1656 m2. what are the length and width of the lot
The length and width of the lot are 46m and 36m respectively
Let the width of the lot be x,
therefore, length=x+10 (as the lot must be 10m longer than it's wide)
Now, according to the question:
Area of the lot= 1656 m²
Area of a rectangle is given by the product of it's length to width, that is:
⇒ Length × Width= 1656 m²
⇒ (10+x).x= 1656
⇒ 10x+x²= 1656
⇒ x²+10x-1656=0
⇒x²+46x-36x-1656=0
⇒x(x+46)-36(x+46)=0
⇒(x-36)(x+46)=0
⇒x=36 or x=-46(which can be ignored)
∴ x=36 and 10+x=46
So, the length of the lot is 46m and the width is 36m.
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i need help with #3 & #4
Step-by-step explanation:
Q3, B
Q4, I'm not too sure about this one but I think its D
100 POINTS AND BRAINLIEST!! PRE CALC!
The trigonometric relation cos (π/3 + x) + cos (π/3 - x) is equivalent to:
a. cos 2x
b. cos x
c. sin x
d. 1/2 cos x
Please explain your answer :)
Answer:
b
Step-by-step explanation:
use cos(r + s ) = cosrcoss - sinrsins to expand.
cos pi/3 cosx - sin pi/3 sinx + cos pi/3 cosx + sin pi/3 sinx
the two in bold cancel out.
cospi/3 cosx + cospi/3 cosx
pi = 180° in trigonometry.
cos 180/3 cosx + cos 180/3 cosx
1/2 cosx + 1/2 cosx
= cos x
Hence
cos(π/3+x)+cos(π/3-x)2cosπ/3(cosx)2(1/2)(cosx)cosx7+5-3*2(6*7)/4
• convert the above specified infix expression into
postfix expression
• Evaluate the resulted postfix expression
• convert the specified infix expression into prefix
expres
The postfix expression of "7+5-3*2(6*7)/4" is "7 5 + 3 2 * 6 7 * 2 * - 4 /". Evaluating the postfix expression gives the result of the expression. The prefix expression for the given infix expression is "/ - + 7 5 * 3 * 2 ( * 6 7 ) 4".
To convert the infix expression "7+5-3*2(6*7)/4" into postfix expression, we follow the rules of operator precedence and associativity. The postfix expression is obtained by placing operators after their operands.
The postfix expression for the given infix expression is:
"7 5 + 3 2 * 6 7 * 2 * - 4 /"
To evaluate the postfix expression, we use a stack data structure. We scan the postfix expression from left to right and perform the corresponding operations.
Starting with an empty stack, we encounter the operands "7" and "5". We push them onto the stack. Then we encounter the operator "+", so we pop the last two operands from the stack (5 and 7), perform the addition operation (7 + 5 = 12), and push the result back onto the stack.
We continue this process for the remaining operators and operands in the postfix expression. Finally, after evaluating the entire expression, the result left on the stack is the final answer.
To convert the infix expression into prefix expression, we follow similar rules but scan the expression from right to left. The prefix expression is obtained by placing operators before their operands.
The prefix expression for the given infix expression is:
"/ - + 7 5 * 3 * 2 ( * 6 7 ) 4"
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wanda is trying to locate the fermat point $p$ of $\triangle abc$, where $a$ is at the origin, $b$ is at $(8,-1)$, and $c$ is at $(5,4)$ (the fermat point is the point such that the sum of its distances from the vertices of a triangle is minimized). she guesses that the point is at $p
Wanda's guess that the Fermat point $P$ of $\triangle ABC$ is at $P(4, 1)$ is incorrect.
The Fermat point, also known as the Torricelli point, of a triangle is the point at which the sum of its distances from the vertices is minimized. To locate the Fermat point, Wanda needs to consider the angles of the triangle. In this case, she can start by constructing the equilateral triangle $\triangle ABD$ using side $AB$ as the base. Point $D$ will be at $(16, -1)$, forming an equilateral triangle with side lengths equal to $AB$. Next, Wanda should draw the line segments connecting points $C$ and $D$, and $B$ and $C$. The intersection of these line segments will be the Fermat point $P$. By analyzing the angles and distances, Wanda can determine the correct coordinates of the Fermat point.
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Amy must form a three-letter arrangement using only letters from the word dice. She cannot use a letter more than once in the arrangement. (Her arrangement doesn't need to be a valid word.)
There are four possible three-letter arrangements that Amy can form using the letters from the word "dice" without repeating any letters. To form a three-letter arrangement using only letters from the word "dice" without repeating any letters, we can use the formula for combinations.
The formula is given by nCr = n! / (r!(n-r)!), where n is the total number of items and r is the number of items to be chosen.
In this case, n = 4 (the total number of available letters) and r = 3 (the number of letters to be chosen for the arrangement).
5. Substituting these values into the formula, we get \(4C_{3}\) = 4! / (3!(4-3)!) = 4! / (3!1!) = (4 * 3 * 2) / (3 * 2 * 1) = 4.
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Nicole measured some distances on a map of Lassen Volcanic National Park. The scale on the map is 34
inch = 2 miles. What is the actual distance from Raker Peak to Hat Mtn?
Responses
A 4 miles4 miles
B 223
miles2 2 3 miles
C 214
miles2 1 4 miles
D 212
miles2 1 2 miles
E 3 miles
Performing a change of scale we will see that the actual distance is 4 miles.
What is the actual distance from Raker Peak to Hat Mtn?We know that the scale is:
3/4 inch = 2 miles.
And the distance that Nicole found on the map is (1 + 1/2) inches.
We can rewrrite the scale as:
1 inch = (4/3)*2 miles
1 inch = (8/3) miles.
Then the actual distance will be:
distance = (1 + 1/2) inches = (1 + 1/2)*(8/3) miles = 4 miles.
The correct option is A.
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for th below two machines and based on CC analysis which machine we should select? MARR =10% Answer the below question: A- the CC for machine A= QUESTION 8 For th below two machines and based on CC analysis which machine we should select? MARR =10% Answer the below question: B- the CC for machine B=
We need to compare the cash flows of machines A and B using the concept of Capital Cost (CC) analysis and a minimum acceptable rate of return (MARR) of 10%.
For machine A, the CC is not provided in the question. To determine the CC for machine A, we need additional information such as the initial investment cost and the expected cash inflows and outflows over the machine's useful life. Similarly, for machine B, the CC is not provided in the question.
We need additional information about the initial investment cost and the expected cash inflows and outflows over the machine's useful life to calculate the CC for machine B. Without the CC values, we cannot determine which machine to select based on CC analysis. To make a decision, we need more information.
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The area of a circle is 121 pi squared meters find the area of the sector whose central angle is 28°
The circle's circumference is equal to 4 * 11 or 44 cm for a square.
What is perimeter ?It is the length of any two-dimensional geometric shape's boundary or outline.
Depending on the size, the perimeter of several figures can be the same. Consider a triangle built of an L-length wire, for instance.
If all the sides are the same length, the same wire can be used to create a square.
The length that the shape's perimeter covers is known as the perimeter.
Hence, the perimeter's units will be the same as its length units.
Perimeter is one-dimensional, as we can say. As a result, it can be measured in metres, kilometres, millimetres, etc.
Inches, feet, yards, and miles are some more perimeter measurement units that are recognised on a global scale.
The perimeter of the square = 4*11 = 44 cm
The radius of the circle = 44*7/44 = 7 cm.
Area of the circle = (22/7)*7*7 = 154 cm^2
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Consider the following: X 29 63 67 103 113 Y 205 221 176 123 112 1) What is slope of the regression line predicting Y from X,rounded to 2 decimal places? 2) What is the intercept of the regression line predicting Y from X, rounded to 2 decimal places? 3) What is the correlation between X and Y, rounded to 2 decimal places?
The slope is approximately -1.28, the intercept is approximately 263.93, and the correlation is approximately -0.92.
To find the slope of the regression line predicting Y from X, we use the formula:
slope = \((nΣ(XY) - ΣXΣY) / (nΣ(X^2) - (ΣX)^2)\)
First, we calculate the necessary summations:
ΣX = 29 + 63 + 67 + 103 + 113 = 375
ΣY = 205 + 221 + 176 + 123 + 112 = 837
ΣXY = (29205) + (63221) + (67176) + (103123) + (113*112) = 71450
\(ΣX^2 = (29^2) + (63^2) + (67^2) + (103^2) + (113^2) = 48114\)
Using these values, we can calculate the slope:
slope = (571450 - 375837) / (5*48114 - (375^2))
= -1.28 (rounded to 2 decimal places)
Next, we find the intercept of the regression line using the formula:
intercept = (ΣY - slope * ΣX) / n
intercept = (837 - (-1.28 * 375)) / 5
= 263.93 (rounded to 2 decimal places)
Lastly, to determine the correlation between X and Y, we calculate the correlation coefficient using the formula:
correlation = \((nΣXY - ΣXΣY) / √((nΣX^2 - (ΣX)^2)(nΣY^2 - (ΣY)^2))\)
correlation =\((571450 - 375837) / √((548114 - (375^2))(5210457 - (837^2)))\)
= -0.92 (rounded to 2 decimal places)
Therefore, the slope of the regression line predicting Y from X is approximately -1.28, the intercept is approximately 263.93, and the correlation between X and Y is approximately -0.92.
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help me get the solution pls..
Answer:
R+56°+29°= 180°
R = 95°
Step-by-step explanation:
Hope it helps you!
Find the distance between the two given points in simplest form.
5. H(-3, 6) & C(-3, -3)
HC =??
6. E(9, -2) & G(10, -1)
an is 20.
EG=??
The distance between the two given points in simplest form is
5. \(\text { Distance }=\sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}\)
The distance between two points with coordinates
(-3,6) and (-3,-3) is:
HC =9.00 units
(results are in decimal form, rounded to the nearest 100th)
6. \(\text { Distance }=\sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}\)
The distance between two points with coordinates
(9,-2) and (10,-1) is:
EG =1.41 units
(results are in decimal form, rounded to the nearest 100th)
In this question, we are given two points and we need to find the distance between them in radical form. Therefore, we need to find the distance keeping the square root sign. For this we will generally use the distance formula. The distance between two points \($ \left( {{x}_{1}},{{y}_{1}} \right)\text{ and }\left( {{x}_{2}},{{y}_{2}} \right) $\) is given by the formula, \($ d=\sqrt{{{\left( {{x}_{2}}-{{x}_{1}} \right)}^{2}}+{{\left( {{y}_{2}}-{{y}_{1}} \right)}^{2}}} $\) . We will solve the squares and add them but we will not solve the square root so that it remains in radical form.
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Solve:
10+6X = 15+9x-3x
an 8 sided regular polygon (regular octagon) is inscribed in a circle whose radius is 16 feet. find the area of the polygon.
The area of the regular octagon inscribed in a circle with a radius of 16 feet can be found using the formula A = (2 + 2sqrt(2))r^2, where r is the radius of the circle. Plugging in the value for r, we get:
A = (2 + 2sqrt(2))(16)^2
A = (2 + 2sqrt(2))(256)
A = 660.254 ft^2
Therefore, the area of the regular octagon is approximately 660.254 square feet.
To derive the formula for the area of a regular octagon inscribed in a circle, we can divide the octagon into eight congruent isosceles triangles, each with a base of length r and two congruent angles of 22.5 degrees. The height of each triangle can be found using the sine function, which gives us h = r * sin(22.5). Since there are eight of these triangles, the area of the octagon can be found by multiplying the area of one of the triangles by 8, which gives us:
A = 8 * (1/2)bh
A = 8 * (1/2)(r)(r*sin(22.5))
A = 4r^2sin(22.5)
We can simplify this expression using the double angle formula for sine, which gives us:
A = 4r^2sin(45)/2
A = (2 + 2sqrt(2))r^2
Therefore, the formula for the area of a regular octagon inscribed in a circle is A = (2 + 2sqrt(2))r^2.
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The image of the point ( 3 , − 5 ) (3,−5) under a translation is ( 8 , − 4 ) (8,−4). Find the coordinates of the image of the point ( − 4 , − 6 ) (−4,−6) under the same translation.
Answer:
(1,-5)
Step-by-step explanation:
first find the rule of the first translation
it went from (3,-5) to (8,-4)
meaning 5 was added to the x value to get from 3 to 8 and 1 was added to the y value to get from -5 to -4
so the rule is (x+5, y+1)
apply that to the next point (-4,-6) where -4 is the x value and -6 is the y value
-4+5=1
-6+1=-5
(1,-5) is the coordinate
PLS HELP ME WITH MY HOMEWORK LETTER D IS CITY P IS ABOVE SEA LEVEL AND CITY R IS BELOW SEA LEVEL
Answer:
I think its D.
Step-by-step explanation:
P is at sea level and R is below. Q is at sea level, so it's not above or below.
need help with this one
The missing values of a, b, c and d in the table can be filled as shown in the image attached.
How to find the missing values of a, b, c and d in the table?To find the missing values of of a, b, c and d in the table, we have to factor the polynomials as follow:
No. 1
x² - 6x + 8 = (x - 4)(x - 2)
Thus, a = 1, b = -4, c = 1 and d = -2
No. 2
3x³ - 6x² - 24 = 3x(x - 4)(x + 2)
Thus, a = 1, b = -4, c = 1 and d = 2
No. 3
2x² - 2x - 24 = (x - 4)(2x + 6)
Thus, a = 1, b = -4, c = 2 and d = 6
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