Answer:
A = 145cm
Step-by-step explanation:
A+B+C = 445cm
b = 1/2c
a = b+45 = 1/2c + 45
445 = c + (0.5c) + (0.5c + 45)
445 = 2c + 45
445 - 45 = 2c
400/2 = c
c = 200cm
a = 1/2c + 45 = 1/2*200 + 45 = 100 + 45 = 145cm
Given parallelogram ABCD, diagonals AC and BD intersect at point E.AE = 2x, BE = y + 10, CE = x + 2 and DE = 4y - 8. Find y.
The diagram below show the situation given in the problem:
We know that the diagonals of a parallelogram bisect each other, which means that AE=CE and BE=DE; using the second equality we have that:
\(\begin{gathered} y+10=4y-8 \\ 4y-y=10+8 \\ 3y=18 \\ y=\frac{18}{3} \\ y=6 \end{gathered}\)Therefore, the value of y is 6 and the answer is A.
Given the graph of f(x) above, find the following and write your answers using interval notation (Separate multiple intervals with a comma):
(a) Domain: 7
(b) Range:
(c) Interval(s) on which f(x) is increasing:
(d) Interval(s) on which f(x) is decreasing:
(e) Interval(s) on which f(x) is constant:
(f) Local maxima: 3
(g) Local minima: -5
Answer:
a) [-9,8)
b) [-5,5]
c) (-4,0), (1,6)
d) [-9,-4), (6,8)
e) [0,1]
f) just the y-value: 5; as a point: (-8,5)
g) just the y-value: -5; as a point: (-4,-5)
Step-by-step explanation:
a) Domain is all of the x-values that are defined in the function. The smallest x-value in the graph is -9, and the largest is 8. And all values in between are defined (have corresponding y-values). But notice that there's an open dot on (8,0).
b) Range is found the same way as Domain, but with the y-values. The smallest y-value of this function is -5, and the largest is 5.
For c-e, notice where the graph changes direction and draw a vertical line from the x-axis through the turning point. These lines are the boundaries between intervals of increasing/decreasing/constant. You should have vertical lines at x=-4, x=0, x=1, and x=6.
c) Interval(s) on which f(x) is increasing: Reading the graph from Left To Right, between which vertical lines is the graph going up?
d) Interval(s) on which f(x) is decreasing: Reading the graph from Left To Right, between which vertical lines is the graph going down?
e) Interval(s) on which f(x) is constant: Reading the graph from Left To Right, between which vertical lines is the graph staying flat?
f) Look for the highest non-infinity point on the graph
g) Look for the lowest non-infinity point on the graph
The table shows three unique functions.
x f(x) g(x) h(x)
-2
4
6
-3
-1
1
2
1
4-
2
1
1
55 752
6
8
1
Hit
6:
Mark this and return
-25
Which statements can be used to compare the
characteristics of the functions? Select two options.
Of(x) has an all negative domain.
g(x) has the greatest maximum value.
All three functions share the same range.
Oh(x) has a range of all negative numbers.
All three functions share the same domain.
Answer:
The statements that can be used to compare the characteristics of the functions are:
1. g(x) has the greatest maximum value.
2. All three functions share the same domain.
Explanation:
- The table shows the values of three functions - f(x), g(x), and h(x) - evaluated at different values of x.
- We cannot determine the domain of f(x) or h(x) from the given table but we can see that g(x) has a domain of all real numbers.
- We can see that g(x) has the highest maximum value among the three functions, which is 8.
- We cannot determine the range of f(x) or g(x) from the given table but we can see that h(x) has a range of all negative numbers.
- We cannot say anything about the domain or range of f(x) based on the given table.
- Therefore, the two statements that can be used to compare the characteristics of the functions are: g(x) has the greatest maximum value and all three functions share the same domain.
can some please help with 11 !!!!
really need help with this problem
Answer:
Step-by-step explanation:
tan30 = opp/adj = x/1
x = tan30 = ⅓√3 or approximately 0.577
f(x) = x2. What is g(x)?
Answer:
The Domain of g (x) = x2 is all the Real Numbers.
Step-by-step explanation:
The composed function is: (g º f) (x) = g (f (x)) = (√x)2. = x. Now, "x" normally has the Domain of all Real Numbers ... ... but because it is a composed function we must also consider f (x), So the Domain is all non-negative Real Numbers.
Quadrilateral ABCD has vertices A(-2,-2), B(1,1), C(0, 4) and D(-3, 5).
The figure is translated using the rule (x, y) --> (x + 2, y -1).
What are the coordinates of image A'B'C'D' after the translation?
A' Choose...
B' Choose...
C'
Choose...
#
D' Choose...
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>
Choose...
Choose...
Choose...
Choose...
In conclusion the coordinates of the image quadrilateral A'B'C'D' after the translation are: A' = (0,-3) B' = (3,0) C' = (2,3) D' = (-1,4)
How to solve and what does coordinates mean?
To find the coordinates of the image of each vertex after the translation, we apply the given rule to each vertex:
Vertex A: (-2,-2) --> (-2+2,-2-1) = (0,-3)
Vertex B: (1,1) --> (1+2,1-1) = (3,0)
Vertex C: (0,4) --> (0+2,4-1) = (2,3)
Vertex D: (-3,5) --> (-3+2,5-1) = (-1,4)
Therefore, the coordinates of the image quadrilateral A'B'C'D' after the translation are:
A' = (0,-3)
B' = (3,0)
C' = (2,3)
D' = (-1,4)
In mathematics, coordinates are used to describe the position of a point in space. The most common system for assigning coordinates to points is the Cartesian coordinate system, which uses two or more numerical values to represent the position of a point relative to a fixed reference point, usually called the origin.
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helpppp...........................
Answer:
see explanation
Step-by-step explanation:
the sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
a hexagon has 6 sides , then
sum = 180° × (6 - 2) = 180° × 4 = 720°
12
the polygon has 5 sides , so
sum = 180° × (5 - 2) = 180° × 3 = 540°
sum the interior angles and equate to 540
y + 90 + 120 + 90 + 110 = 540
y + 410 = 540 ( subtract 410 from both sides )
y = 130
13
the polygon has 7 sides , so
sum = 180° × (7 - 2) = 180° × 5 = 900°
sum the interior angles and equate to 900
p + 90 + 141 + 130 + 136 + 123 + 140 = 900
p + 760 = 900 ( subtract 760 from both sides )
p = 140
Which expression is equivalent to \(8/x^6\)? Assume x> 0
An equivalent expression is given by (2 / x ^ 3) * sqrt (2)
We have the following expression
8 / x ^ 6
Rewriting we have
sqrt (8 / x ^ 6)
What is the expression?
The expression consists of numbers and arithmetic operators. It does not contain equality or inequality symbols.
sqrt (2 * 4 / ((x ^ 2) * (x ^ 2) * (x ^ 2)))
(2 / (x * x * x)) sqrt (2)
(2 / x ^ 3) * sqrt (2)
An equivalent expression is given by
(2 / x ^ 3) * sqrt (2)
Therefore an equivalent expression is given by (2 / x ^ 3) * sqrt (2).
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If the left-hand limit of is equal to the right-hand limit of as x approaches 10, the limit of as x approaches 10 is and the value of k is .
The limit of f(x) as x approaches 10 is 315 and The value of k is 250.
The function f(x) is a piecewise function, so we need to evaluate it separately for x < 10 and x >= 10.
\(f(x)= { \frac{(0.1x(2)+20x+15,x < 10)}{(0.25x(3)+k,x > 10)}\)
For x < 10, the function is equal to 0.1x^2 + 20x + 15. So the left-hand limit of f(x) as x approaches 10 is equal to 0.1(10)^2 + 20(10) + 15 = 315.
For x >= 10, the function is equal to 0.25x^3 + k. So the right-hand limit of f(x) as x approaches 10 is equal to 0.25(10)^3 + k = 250 + k.
Since the left-hand limit and the right-hand limit are equal, the limit of f(x) as x approaches 10 is also equal to 315, and the value of k is equal to 250.
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Find the area of the polygon
Answer:
14 square units
find the range of this equation
The range of the given equation is [-1, infinity).
We are given that;
Equation y= underroot(x+5)
Now,
The domain of this equation is the set of x values that make the expression under the square root non-negative.
That is, x+5 >= 0, or x >= -5. So the domain is [-5, infinity).
The range of this equation is the set of y values that are obtained by plugging in the domain values into the equation. Since the square root function is always non-negative, and we are subtracting 1 from it, the smallest possible value of y is -1, when x = -5. As x increases, y also increases, and there is no upper bound for y.
Therefore, by the range the answer will be [-1, infinity).
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25-40x = x - 10
solve this radical equation
the 25-40x is supposed to be in a square root
Find m∠MQN. help me on this one.
Answer:
Vertically opposite angles are always same.
Straight angle=180°
Angle MQN=70°
A television is on sale for 30% off. The sale price is $322. What is the original price of the television?
PLEASE HELP QUICK
Answer:
$460
Step-by-step explanation:
Let
x = original price of the television
Sale price = $322
Discount = 30%
x - 30% of x = 322
x - 0.3 * x = 322
x - 0.3x = 322
0.7x =322
x = 322/0.7
x = $460
x = original price of the television = $460
What is the value of the expression 2,160/30
Answer:
72
Step-by-step explanation:
Find the solutions of the equation in the interval [−2, 2]. Use a graphing utility to verify your results. (Enter your answers as a comma-separated list.)
The value of x for the given trigonometric function is (15/18)π.
What is a trigonometric function?The fundamental 6 functions of trigonometry have a range of numbers as their result and a domain input value that is the angle of a right triangle.
The trigonometric function is very good and useful in real-life problems related to the right angle.
As per the given,
secx = (-2√3)/3
1/cosx = -2/√3
cosx = -√3/2
x = 150° = (15/18)π
Thus, x goes into the second quadrant as shown below.
Hence"The value of x for the given trigonometric function is (15/18)π".
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When babies are born, their lengths are recorded. Maddy is 18 1/2 inches. Her twin, Alex, is 20 3/4 inches. How much longer than Maddy is Alex?m
Answer:
2 1/4 inches longer
THE CORRECT ANSWER IS 2 1/4. hope this help
What is the common denominator of y+y=3/3 in the complex fraction y + y-3/3/5/9+2/3y? Options: 3y(y-3), y(y-3), 3y, 3
We currently have two fractions: y / 1 and (y - 3) / 3.
In both cases, we are only concerned with the denominator. Yes, the numerator will change when we change the denominator, but that will not affect the answer to this question.
As such, we need to find the least common multiple of 1 and 3. That is 3. Therefore, the common denominator is 3.
Hope this helps!
Please i need help
50 points
Answer:
What did you need halp with
Step-by-step explanation:
Answer:
x=65
I put a pdf with the work below. hope it helps!
Step-by-step explanation:
A number n is divided by 9 is 3. What is the remainder when 3n + 5 is divided by 9?
Answer:
9.55555555.......
Step-by-step explanation:
n is 27 because 27÷9=3. 3n is 81 because 27×3=81. 81+5=86 and 86÷9 is 9.55555555555.....
Answer:
5
Step-by-step explanation:
A number n is divided by 9 is 3
n/9 = 3n = 3*9 = 27Find the remainder when 3n + 5 is divided by 9.
3n + 5 = 3*27 + 5 = 9*9 + 5As we see the resultant number, when divided by 9 will leave a remainder of 5
So the answer is 5.
what is 3/5 divided by 6/7 in KCF
g is a trigonometric function of the form � ( � ) = � cos ( � � + � ) + � g(x)=acos(bx+c)+dg, left parenthesis, x, right parenthesis, equals, a, cosine, left parenthesis, b, x, plus, c, right parenthesis, plus, d. Below is the graph of � ( � ) g(x)g, left parenthesis, x, right parenthesis. The function has a maximum point at ( 3.5 , − 4 ) (3.5,−4)left parenthesis, 3, point, 5, comma, minus, 4, right parenthesis and a minimum point at ( − 1 , − 5 ) (−1,−5)left parenthesis, minus, 1, comma, minus, 5, right parenthesis. Find a formula for � ( � ) g(x)g, left parenthesis, x, right parenthesis. Give an exact expression. � ( � ) = g(x)=g, left parenthesis, x, right parenthesis, equals A graph of a trigonometric wave on an x y coordinate plane. The x axis scales by two and the y axis scales by one. There is a point on the graph at the minimum at (negative one, negative five) and a point on the maximum next to the mentioned point at (three and one half, negative four).
The exact expression for g(x) is 2.25cos((2π/4.5)×(x-3.5)) - 4.
Describe Function?A function can be represented using a formula or an equation, and it can be graphed on a coordinate plane. The input values are typically represented on the x-axis and the output values on the y-axis.
From the given information, we know that the function g(x) has a maximum point at (3.5, -4) and a minimum point at (-1, -5).
The general form of a cosine function is f(x) = A×cos(Bx + C) + D, where A is the amplitude, B is the period, C is the phase shift, and D is the vertical shift.
Since the function has a maximum point at (3.5, -4), we know that the graph has been shifted to the left by 3.5 units. Therefore, we can write the function as g(x) = A×cos(B(x - 3.5)) + D.
Similarly, since the function has a minimum point at (-1, -5), we know that the graph has been shifted upwards by 1 unit. Therefore, we can write the function as g(x) = A×cos(B(x - 3.5)) - 4.
To determine A and B, we can use the fact that the period of the function is 4.5 units (the distance between the maximum and minimum points). Therefore, we have B = 2*pi/4.5.
To determine A, we can use the fact that the amplitude is half the distance between the maximum and minimum points, which is 0.5*(5-(-4)) = 4.5. Therefore, we have A = 4.5/2 = 2.25.
Substituting these values into the equation for g(x), we have:
g(x) = 2.25cos((2π/4.5)×(x-3.5)) - 4
Therefore, the exact expression for g(x) is:
g(x) = 2.25cos((2π/4.5)×(x-3.5)) - 4.
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Jason has $8.69 to spend on beans. Write an equation to represent the situation and solve the equation to find the number of cans Jason can
buy.
An equation to represent the situation and solve the equation of the number of cans of beans Jason can buy is x = 8.69/0.61 and x = 14.
What is an equation?An equation is a statement in mathematical terms that show that two or more algebraic expressions are equal or equivalent.
Algebraic expressions are formed with variables, constants, values, and numbers, in addition to mathematical operands without the equal sign (=).
The total budget on beans = $8.69
The unit price for a can of beans = $0.61
Let the number of cans of beans = x
Equation:x = 8.69/0.61
x = 14.2
x = 14
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Question Completion:The price of a can of beans is $0.61
The sum of 2 consecutive odd numbers is 36. Write an equation to represent this problem. Then find the two numbers. Smaller Number: 1 Larger Number: :: X-1 :: X :: X+1 H: X+2 :: 2 :: 36 :: 21 :: 9 * 19 11 :: 15 ** 17
Let x represent the smaller odd number.
The difference between 2 consecutive odd numbers is 2
This means that the larger odd number would be x + 2
Given that the sum of the two consecutive odd numbers is 36, it means that
\(\begin{gathered} x\text{ + x + 2 = 36} \\ 2x\text{ + 2 = 36} \\ 2x\text{ = 36 - 2} \\ 2x\text{ = 34} \\ x\text{ = }\frac{34}{2} \\ x\text{ = 17} \end{gathered}\)Therefore,
the small odd number is 17
the larger odd number is 17 + 2 = 19
12. *
12. The Earth is estimated to be 4,540,000,000
years old. What is the Earth's age in scientific
notation?
a) 4.54 x 10°
b) 4.54 x 10-14
c) 4.54 x 1011
d) 4.54 x 1010
A
С
D
Please help
Answer:
4.54 x 1010
Hope this helps!
please i’ll fail if i don’t get this right. please i’ll give brainlyist The current temperature of 15°F below zero is 18°F below the high temperature of the day. What is the high temperature for the
day?
OA. 5°F
ов. 33°F
OC. 3°F
OD. 33°F
Answer:
I think its C
Step-by-step explanation:
A university is interested in determining the average statistics anxiety score for all undergraduate students in the U.S. For a random sample of 33 undergraduate students, it is found that the average average statistics anxiety score is 39.4 with a standard deviation of 0.9. Assume that the statistics anxiety scores for all undergraduate students in the U.S is normally distributed. A 98% confidence interval for the true mean statistics anxiety score μ is closest to.
The 98% confidence interval for the true mean statistics anxiety score (μ) is approximately (39.037, 39.763).
To calculate the 98% confidence interval for the true mean statistics anxiety score (μ) for all undergraduate students in the U.S., we can use the formula:
Confidence interval = sample mean ± (critical value * standard error)
First, we need to find the critical value associated with a 98% confidence level. Since we are assuming a normal distribution, we can use the Z-table or a statistical software to find this value. For a 98% confidence level, the critical value is approximately 2.33.
Next, we calculate the standard error (SE) using the formula:
SE = standard deviation / √sample size
In this case, the standard deviation is 0.9 and the sample size is 33. Plugging these values into the formula, we get: SE = 0.9 / √33 ≈ 0.156
Now, we can calculate the confidence interval:Confidence interval = 39.4 ± (2.33 * 0.156)
Simplifying the expression:Confidence interval ≈ 39.4 ± 0.363
This gives us the interval (39.037, 39.763). This means we are 98% confident that the true mean statistics anxiety score for all undergraduate students in the U.S. falls within this interval.
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Given the individual rates of workers, to find the combined rate of all the individuals working together you must
the individual rates.
Fill in the blank
To find the combined rate of all the individuals working together, you must add the individual rates.
How to calculate combined rate of individuals working together?When calculating the combined rate of individuals working together, you need to add up the individual rates. Each worker contributes their own rate of work or productivity, and by adding these rates together, you can determine the combined rate at which they are working collectively.
This allows you to assess the overall efficiency and output of the team or group. By summing up the individual rates, we have better understanding of the overall productivity and performance of the group.
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A shampoo company conducted a survey and found that 3 out of 8 people use their brand of shampoo. Which proportion could be used to
find the expected number of users n in a city of 75,000 people?
75.000
Answer:yes
Step-by-step explanation:yes
Answer:
3/8 = x/75,000
Step-by-step explanation:
We are looking for x, the number of people in a city of 75,000 that use the shampoo.
3 is to 8 as x is to 75,000
3/8 = x/75,000