By applying the concept of corresponding angles in similar triangles, we were able to establish the value of x as 25 in the given scenario.
In the given problem, we are provided with information about the angles in two similar triangles: triangle ABC and triangle STU. It is stated that angle UTS in triangle STU is 100 degrees, and since corresponding angles of similar triangles are congruent, we can conclude that angle STU is also 100 degrees.
Next, we examine angle BAC in triangle ABC, which is given as 4x. Using the same logic, we know that angle BAC is also congruent to angle STU. Therefore, we can equate the two angles:
angle BAC = angle STU
4x = 100
To find the value of x, we divide both sides of the equation by 4:
x = 100/4
x = 25
Hence, we determine that x is equal to 25. This method allows us to leverage the known information about one triangle to infer the measurements of corresponding angles in the other similar triangle.
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It is possible that a distribution of data may not actually contain one of the measures of central tendency. Which one might that be?
Question 3 options:
Range
Mode
Mean
Median
The measure of central tendency of a distribution of data that can take multiple value is the mode
How to determine the measure of central tendency?In a given dataset;
The range is the difference between the least and the highest data elementThe mean is the average valueThe median is the middle valueAll the above measures can take only one value in a dataset
However, the mode can take multiple values, because it represents the data element with the highest frequency (and multiple data elements can have the same frequency)
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AB = 6cm, AC = 12cm
Calculate the length of CD.
Give your answer to 3 significant figures.
In the given diagram, the length of CD is 12.7 cm
TrigonometryFrom the question, we are to determine the length of CD
First, we will calculate the length of CB
From the Pythagorean theorem,
|CA|² = |CB|² + |BA|²
12² = |CB|² + 6²
144 = |CB|² + 36
|CB|² = 144 - 36
|CB|² = 108
|CB| = √108
|CB| = 6√3 cm
Now, to find CD
Using SOH CAH TOA
sin55° = |CB| / |CD|
sin55° = 6√3 / |CD|
|CD| = 6√3 / sin55°
|CD| = 12.7 cm
Hence, the length of CD is 12.7 cm
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HELP PLEASE I DO NOT UNDERSTAND THIS
The simplified expression for x+2x-8+3x+1-2x is 4x - 4.
What is expression?Expression is a term used to describe a wide variety of communication methods such as verbal, nonverbal, written, and artistic. It is the way we communicate our thoughts, feelings, and ideas to others. It is an important part of our lives, from the simplest forms of communication like body language to more complex forms like written literature. Expression is a powerful tool for self-expression, communication, and connection.
The expression x+2x-8+3x+1-2x can be simplified by combining like terms.
First, the x-terms can be combined, resulting in 4x:
x + 2x + 3x - 2x = 4x
Next, the remaining constants can be combined, resulting in -4:
4x - 8 + 1 = -4
Finally, the resulting expression can be written as 4x - 4.
Therefore, the simplified expression for x+2x-8+3x+1-2x is 4x - 4.
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What is the slope of a line parallel to the line whose equation is 2x – y = 7. Fully
reduce your answer.
Answer:
Using the slope-intercept form, the slope is −2 - 2 .
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
\text{Solve for y:}
Solve for y:
Put into slope-intercept form
2x-y=
2x−y=
\,\,7
7
-2x\color{transparent}{-y}\phantom{=}
−2x−y=
\,\,-2x
−2x
Bring x's to the right
-y=
−y=
\,\,-2x+7
−2x+7
\frac{-y}{-1}=
−1
−y
=
\,\,\frac{-2x+7}{-1}
−1
−2x+7
Divide by -1
y=
y=
\,\,2x-7
2x−7
Distribute division
\text{Slope of given line: }2
Slope of given line: 2
The coefficient of x is the slope
\text{Slope of a parallel line: }2
Slope of a parallel line: 2
Owen receives $10 and puts it into his saving account. He adds $0.50 to the account each day for a number of day, d, after that. He writes the expression 10+ 0.5(d-1) to find the amount of money in his account after d days. Which statement about his expression is true?
The true expression about the account is D.) It is the sum of the initial amount and the additional amount after d days.
What does the expression 10+0.5(d−1) represent in Owen's savings account?The answer is D because it represents the sum of the initial amount and the additional amount after d days. The initial amount is $10 and Owen adds $0.50 to the account each day for a number of days, represented by d.
By subtracting 1 from d, the expression ensures that on the first day (when d=1), only the initial $10 is counted. On each subsequent day, the additional amount of $0.50 is added to the total. Therefore, the expression 10+0.5(d−1) gives the amount of money in Owen's account after d days.
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Of(x) = x² - 6x-1-
Mark thic and return
24
-10-8-8-22-
-8
-8
-10
2
B
8 10 x
What is the axis of symmetry
The axis of symmetry of the function f(x) = x² - 6x-1 is equal to 3.
How to determine the axis of symmetry of a quadratic function?In Mathematics, the axis of symmetry of a quadratic function can be calculated by using this mathematical equation:
Axis of symmetry, Xmin = -b/2a
Where:
a and b represents the coefficients of the first and second term in the quadratic function.
By substituting the parameters, we have the following:
Axis of symmetry, Xmin = -b/2a
Axis of symmetry, Xmin = -(-6)/2(1)
Axis of symmetry, Xmin = 6/2
Axis of symmetry, Xmin = 3.
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Are investment funds a liability or asset?
Asset - Things you can sell for value
Liabitlies - You have to pay no matter what
Answer:
Asset
Step-by-step explanation:
Because your selling your money to in something to make it have value.
Which statement is true about the graphed function?
F(x) < 0 over the intervals (-∞, -0.7) and (0.76, 2.5).
F(x) > 0 over the intervals (-∞, -0.7) and (0.76, 2.5).
F(x) < 0 over the intervals (-0.7, 0.76) and (2.5, ∞).
F(x) > 0 over the intervals (-0.7, 0.76) and (0.76, ∞)
The true statement about the graphed function is:
F(x) > 0 over the intervals (-∞, -0.7) and (0.76, 2.5).
When a function is positive and when it is negative?Looking at it's graph, we have that:
The function is positive when it is above the x-axis.The function is negative when it is below the x-axis.Researching this problem on the internet and looking at the graph of the function, the correct statement is given by:
F(x) > 0 over the intervals (-∞, -0.7) and (0.76, 2.5).
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the top of a rectangular box has an area of 110 cm. the sides have areas of 120 cm and 132 cm. what are the dimensions of the box?
Answer:
1,320
Step-by-step explanation:
the top is 11 and 10 which makes the first side 10 and 12 and the second 12 and 11 the 3 numbers that you multiply 10 11 and 12
10X11X12=1320
P.S. please give brainliest
Select the correct answer.
Jason inherited a piece of land from his great-uncle. Owners in the area claim that there is a 45% chance that the land has oil. Jason decides to
He buys a kit that claims to have an 80% accuracy rate of indicating oil in the soil. What is the probability that the land has no
oil and the test shows that it has oil?
OA. 0.09
O B. 0.11
O C. 0.36
O D. 0.44
Answer: B
Step-by-step explanation:
(1 - 45%) x (1 - 80%)
=55% x 20%
= 0.11
The sector of a circle has an area of 104pi/9
square inches and a central angle with measure 65 degree
. What is the radius of the circle, in inches?
Answer:
Given:
Area of the sector (A) = 104π/9 square inches
Central angle (θ) = 65 degrees
The formula for the area of a sector of a circle is:
A = (θ/360) * π * r^2
We can rearrange this formula to solve for the radius (r):
r^2 = (A * 360) / (θ * π)
Plugging in the given values:
r^2 = (104π/9 * 360) / (65 * π)
r^2 = (104 * 40) / 9
r^2 = 4160 / 9
r^2 ≈ 462.22
Taking the square root of both sides:
r ≈ √462.22
r ≈ 21.49
Therefore, the radius of the circle is approximately 21.49 inches.
Answer: 8 inches
Step-by-step explanation:
Sally can paint a room in 5 hours while it takes Steve 7 hours to paint the same room. How long will it take them to paint the room if they work together?
(Type an integer or decimal rounded to one decimal place as needed)
=====================================================
Explanation:
Let's say the room has walls and ceiling of 350 sq ft in total area.
Sally can paint this area in 5 hours when working alone, so her unit rate is 350/5 = 70 sq ft per hour.
Steve needs 7 hours to do the same job when working alone, so his unit rate is 350/7 = 50 sq ft per hour.
Assuming the two people can work together without hindering each other (i.e. without getting in each other's way), then the two unit rates combine to 70+50 = 120 sq ft per hour.
Divide the total area over this combined unit rate
350/120 = 2.91667 approximately
This rounds to 2.9
--------------
Alternatively, you can solve the equation
\(\frac{1}{5} + \frac{1}{7} = \frac{1}{x}\)
And you should get roughly x = 2.9
5. Kiran is solving the equation Vx+ 2 – 5 = 11 and decides to start by squaring both sides. Which equation results if Kiran squares both sides as his first step? A. x + 2 – 25 = 121 B. x + 2 + 25 = 121 х C. x + 2 – 107x + 2 + 25 = 121 = х = D. x + 2 + 107x + 2 + 25 = 121 (From Unit 3, 9.)
The equation that results if Kiran squares both sides as his first step is gotten as; x + 2 - 10√(x + 2) + 25 = 121
How to simplify algebra?We want to simplify the expression;
[√(x + 2)] - 5 = 11
Squaring both sides is;
([√(x + 2)] - 5) * ([√(x + 2)] - 5) = 11 * 11
⇒ x + 2 - 10√(x + 2) + 25 = 121
Thus, the correct answer is;
x + 2 - 10√(x + 2) + 25 = 121
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Please help asap with this question I'm really finding it tricky
thank you
I need answer fast
thank you
Answer:
0.7
Step-by-step explanation:
this is the answer because the zero means less in this equation.
EMILY COOKIE RECIPE CALLS FOR 3 CUPS OF FLOUR AND 1 CUP OF SUGAR WHAT IS THE RATIO OF FLOUR TO SUGAR
Find the zeros of the function.
Enter the solutions from least to greatest.
f(x)=-3x²+75
lesser x =
greater x =
Show Calculator
Answer:
Step-by-step explanation:
To find the zeros of the function f(x) = -3x² + 75, we need to solve the equation -3x² + 75 = 0 for x. We can start by factoring out a common factor of -3:
-3x² + 75 = 0
-3(x² - 25) = 0
Now we can use the difference of squares formula to factor the expression inside the parentheses:
-3(x - 5)(x + 5) = 0
This equation is satisfied when one of the factors is equal to zero, so we can set each factor equal to zero and solve for x:
x - 5 = 0 --> x = 5
x + 5 = 0 --> x = -5
Therefore, the zeros of the function are x = -5 and x = 5, and we can write them in order from least to greatest as:
lesser x = -5
greater x = 5
Calculator solution:
To verify these results using a calculator, you can graph the function y = -3x² + 75 and look for where the graph intersects the x-axis. Here's how you can do that on a TI-84 calculator:
1) Press the "Y=" button to enter the function.
2) Enter "-3x^2 + 75" after "Y1=".
3) Press the "GRAPH" button to see the graph.
4) Press the "2nd" button followed by the "CALC" button (which is the "TRACE" button).
5) Select option 2: "zero" by pressing the number 2 on the calculator or using the arrow keys to highlight it and pressing "ENTER".
6) Move the cursor to the left of the zero on the left side of the graph and press "ENTER".
7) Move the cursor to the right of the zero on the right side of the graph and press "ENTER".
8) The calculator will display the zeros and ask if you want to store them to a variable. You can simply write down the values and press "ENTER" twice to exit the calculator's calculation.
The calculator will confirm that the zeros are x = -5 and x = 5, as we found above.
What is the solution set of the equation X squared + 3x-4=6?
Answer:
x = 2 or x = -5
Step-by-step explanation:
x² + 3x - 4 = 6
x² + 3x -4 - 6 = 0
x² + 3x - 10 = 0 (Here you find two numbers that have a sum of 3 and a product of -10. These two numbers would be 5 and -2. 5 - 2=3 and 5×-2 =-10.)
x² + 5x - 2x -10 = 0 (They you replace 3x by 5x and -2x)
(x² + 5x) (-2x -10) =0 - (You find common terms)
x(x + 5) -2(x + 5) = 0
(x - 2) (x + 5) = 0
So
x - 2 = 0 or x + 5 = 0
x =2 x = -5
Answer:x=2
Step-by-step explanation:
x^2+3x-4=6
2x+3x-4=6
add 2x and 3x and you get 5x
5x-4=6
add 4 to both sides 6 plus 4 is 10
5x=10
know divide 5 from both sides and you get 2
x=2
9. It is estimated that a certain model rocket will reach an altitude of 200 ft. A photographer is setting up a camera 50 ft away from the launch pad. At what angle should he set the tripod to get a picture at the maximum altitude?
The photographer should set the tripod at an angle of approximately 75.96 degrees to get a picture of the rocket at its maximum altitude.
We have,
We can use trigonometry to solve this problem.
C
/ \
/ \
/θ \
/ \
/ \
A-------------B
50 ft
In this diagram, A represents the launch pad, B represents the maximum altitude of the rocket, C represents the position of the photographer, and θ represents the angle at which the tripod should be set.
We want to find θ.
First, we can find the height of the triangle ABC using the Pythagorean theorem:
AB² = AC² + BC²
200² = AC² + 50²
AC² = 200² - 50²
AC = √(200² - 50²)
AC = 190.526 ft
Next, we can use the tangent function to find θ:
tan(θ) = opposite/adjacent = AB/BC = 200/50 = 4
Taking the arctangent of both sides, we get:
θ = \(tan^{-1}(4)\)
θ = 75.96 degrees
Therefore,
The photographer should set the tripod at an angle of approximately 75.96 degrees to get a picture of the rocket at its maximum altitude.
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can someone help me with this
Answer:
30
Step-by-step explanation:
3 + (6 * 4) + 3 = 30
hope this helps
what is the product of -2/7and-3/7
Step-by-step solution.2/7 × 3/7=?
For fraction multiplication, multiply the numerators and then multiply the denominators to get
2×37×7 =6/49
This fraction cannot be reduced.
Therefore:
2/7×3/7=6/49
Solution by formals.
Apply the fractions formula for multiplication, to
2/7×3/7
and solve
2×37×7=6/49
Therefore:
2/7×3/7=6/49
Bryannasalaz
A rain gutter is made from sheets of
aluminum that are 24 inches wide by
turning up the edges to form right
angles. Determine the depth of the
gutter that will maximize its cross-
sectional area and allow the greatest
amount of water to flow. What is the
maximum cross-sectional area?
Flat sheet 24 inches wide
1 Write a quadratic function for the Area in terms of x: A(x) =
2 The cross-sectional area is maximized when the depth of the gutter is
3 The maximum cross-sectional area is square inches.
1. The quadratic function for the Area in terms of x: A(x) = 24x.
2. The cross-sectional area is maximized when the depth of the gutter is 0.
3. The maximum cross-sectional area is square inches 0.
To determine the depth of the gutter that maximizes its cross-sectional area and allows the greatest amount of water to flow, we need to follow a step-by-step process.
1. Write a quadratic function for the area in terms of x:
The cross-sectional area of the gutter can be represented as a rectangle with a width of 24 inches and a depth of x. Therefore, the area, A(x), is given by A(x) = 24x.
2. The cross-sectional area is maximized when the depth of the gutter is:
To find the value of x that maximizes the area, we need to find the vertex of the quadratic function. The vertex of a quadratic function in form f(x) = ax² + bx + c is given by x = -b/(2a). In our case, a = 0 (since there is no x² term), b = 24, and c = 0. Thus, the depth of the gutter that maximizes the area is x = -24/(2 * 0) = 0.
3. The maximum cross-sectional area is square inches:
Substituting the value of x = 0 into the quadratic function A(x) = 24x, we get A(0) = 24 * 0 = 0. Therefore, the maximum cross-sectional area is 0 square inches.
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s) Find 2 rational numbers between these two fractions
1413/5689
1838/7370
Take the average, which always lies in the middle of any two numbers:
(1413/5689 + 1838/7370) / 2 = 5217548/20963965
To get another number, take the average of this number with any of the first two. For example,
(1413/5689 + 5217548/20963965)/2 = 10424453/41927930
Notice that
1413/5689 ≈ 0.248374
10424453/41927930 ≈ 0.248628 … … … (the second average, between the first number and the first average)
5217548/20963965 ≈ 0.248882 … … … (the first average of the given two numbers)
1838/7370 ≈ 0.249389
(underlined for emphasis)
I need a answer ASAP
Answer:45-67-3
Step-by-step explanation:
Answer:
6 faces
Step-by-step explanation:
If vectors i+j+2k, i+pj+5k and 5i+3j+4k are linearly dependent, the value of p is what?
Answer:
\(p = 2\) if given vectors must be linearly independent.
Step-by-step explanation:
A linear combination is linearly dependent if and only if there is at least one coefficient equal to zero. If \(\vec u = (1,1,2)\), \(\vec v = (1,p,5)\) and \(\vec w = (5,3,4)\), the linear combination is:
\(\alpha_{1}\cdot (1,1,2)+\alpha_{2}\cdot (1,p,5)+\alpha_{3}\cdot (5,3,4) =(0,0,0)\)
In other words, the following system of equations must be satisfied:
\(\alpha_{1}+\alpha_{2}+5\cdot \alpha_{3}=0\) (Eq. 1)
\(\alpha_{1}+p\cdot \alpha_{2}+3\cdot \alpha_{3}=0\) (Eq. 2)
\(2\cdot \alpha_{1}+5\cdot \alpha_{2}+4\cdot \alpha_{3}=0\) (Eq. 3)
By Eq. 1:
\(\alpha_{1} = -\alpha_{2}-5\cdot \alpha_{3}\)
Eq. 1 in Eqs. 2-3:
\(-\alpha_{2}-5\cdot \alpha_{3}+p\cdot \alpha_{2}+3\cdot \alpha_{3}=0\)
\(-2\cdot \alpha_{2}-10\cdot \alpha_{3}+5\cdot \alpha_{2}+4\cdot \alpha_{3}=0\)
\((p-1)\cdot \alpha_{2}-2\cdot \alpha_{3}=0\) (Eq. 2b)
\(3\cdot \alpha_{2}-6\cdot \alpha_{3} = 0\) (Eq. 3b)
By Eq. 3b:
\(\alpha_{3} = \frac{1}{2}\cdot \alpha_{2}\)
Eq. 3b in Eq. 2b:
\((p-2)\cdot \alpha_{2} = 0\)
If \(p = 2\) if given vectors must be linearly independent.
At the Planetarium, tickets cost $11.50 for adults and $4.50 for kids under 12. How many total tickets would someone get if they purchased 7 adult tickets and 3 kids tickets? How many total tickets would someone get if they purchased a adult tickets and k kids tickets?
If someone purchased 7 adult tickets and 3 kids tickets, they would get 10 total tickets.
If someone purchased a adult tickets and k kids tickets, they would get a+k total tickets.
The following value 1.23456789 x 10-6
what is a answer?
Answer 1:
1.23456789 × (10-6) = 4.93827156
Answer 2:
(1.23456789 × 10) - 6 = 6.3456789
Answer 3:
1.23456789 × \(10^{-6}\) = 0.000000123456789
Hope this helped! :)
Helpppppppppppppppppppp
Answer:
14
Step-by-step explanation:
i think cos x*2 = y
-2log (6x + 1) = -6.
There are 14 girls and 12 boys in a class what is the ratio of girls to students
Answer:
14:26
Step-by-step explanation:
Because there is 14 girls and in all as students there is 26 of them.
Consider the following data on x = weight (pounds) and y = price ($) for 10 road-racing bikes.
Brand Weight Price ($)
A 17.8 2,100
B 16.1 6,250
C 14.9 8,370
D 15.9 6,200
E 17.2 4,000
F 13.1 8,500
G 16.2 6,000
H 17.1 2,580
I 17.6 3,500
J 14.1 8,000
Required:
Use the F test to determine whether the weight for a bike and the price are related at the 0.05 level.
Answer:
There is a significant relation between weight and price
Step-by-step explanation:
Brand Weight(x) Price ($) (y)
A 17.8 2100
B 16.1 6,250
C 14.9 8,370
D 15.9 6,200
E 17.2 4,000
F 13.1 8,500
G 16.2 6,000
H 17.1 2,580
I 17.6 3,500
J 14.1 8,000
Null Hypothesis : \(H_0: \mu =0\)
Alternate Hypothesis : \(H_a: \mu \neq 0\)
Given : SST=51956800 SSE= 7312286.84 n = 10
SSR = SST-SSE
SSR=51956800-7312286.84
SSR=44644513.16
Level of significance =\(\alpha = 0.05\)
\(F=\frac{\frac{SSR}{m}}{\frac{SSE}{n-k}}\)
Where m = no. of restrictions
k = No. of independent variables
\(F=\frac{\frac{44644513.16}{1}}{\frac{ 7312286.84}{10-2}}\)
F=48.843
Degree of freedom 1 = 1
Degree of freedom 2 = 10-2=8
Using calculator
p-value is .000114.
p value < α
So, we reject the null hypothesis .
Hence There is a significant relation between weight and price