Answer/Step-by-step explanation:
a. Corresponding angles => 3. angle 7 and angle 15
Rationale:
Both angles are found just on the same position on the transversal line s that cuts across the two lines. Thus, they correspond to each other.
b. Consecutive exterior angle => 4. angle 1 and angle 10
Rationale:
Both angles are exterior angles on the same side of the transversal line r that cuts across two straight lines
c. Alternate exterior angles => 1. angle 9 and angle 16
Rationale:
Both angles alternate each other as they lie on the exterior side of the transversal line q, opposite each other.
d. Alternate interior angles => 5. angle 2 and angle 11
Rationale:
Both angles are interior angles that lie alternately to each other on the transversal line r.
e. Consecutive interior angles => 2. angle 3 and angle 5
Rationale:
Both angles are interior angles that lie on the same side of the transversal line p.
Answer:
Step-by-step explanation:
Write an equation in the form of y=kx for the graph below. (k=y/x) K is in decimal
Form
Answer:
k = 3.5
Step-by-step explanation:
From the graph in the picture attached,
Relation between balloons height (y) is directly proportional to the time (x)
y ∝ x
y = kx
Where 'k' is a proportionality constant.
Now we substitute the point (8, 28) in the equation,
28 = k(8)
k = \(\frac{28}{8}\)
k = 3.5
k ≈ 3.5
Therefore, value of constant 'k' is 3.5
Which of the following pairs of lines are perpendicular?
y=3x-4 and y=-1/2 x-5
y=1/2 and y=2x-1
y=x and y=-x
Please help with this. 60 points for this!
Answer:
y=x y=-x
Step-by-step explanation:
Answer:
y= 12x4
Step-by-step explanation:
i have a degree for this stuff
Find the exact value of x
Answer:
\( \frac{1}{2} \times 25 \times 10 = 125 \)
\( \frac{1}{2} \times breath \times perpedicular \: hight\)
(7c + 2) - (-3c + 4)
1 point
A. 4c + -2
B. 10c + -2
C. 4c + 6
D. 10c + 6
Answer:
10c - 2
Step-by-step explanation:
Answer:
B. 10c + - 2
Step-by-step explanation:
(7c + 2) - (-3c + 4)
(7c + 2) - (-3c - 4)
7c + 2 + 3c - 4
10c + 2 - 4
10c - 2
Part of the graph of the function f(x) = (x – 1)(x + 7) is shown below.
Which statements about the function are true? Select three options.
The vertex of the function is at (–4,–15).
The vertex of the function is at (–3,–16).
The graph is increasing on the interval x > –3.
The graph is positive only on the intervals where x < –7 and where
x > 1.
The graph is negative on the interval x < –4.
Answer:
The vertex of the function is at (–3,–16)
The graph is increasing on the interval x > –3
The graph is positive only on the intervals where x < –7 and where
x > 1.
Step-by-step explanation:
The graph of \(f(x)=(x-1)(x+7)\) has clear zeroes at \(x=1\) and \(x=-7\), showing that \(f(x) > 0\) when \(x < -7\) and \(x > 1\). To determine where the vertex is, we can complete the square:
\(f(x)=(x-1)(x+7)\\y=x^2+6x-7\\y+16=x^2+6x-7+16\\y+16=x^2+6x+9\\y+16=(x+3)^2\\y=(x+3)^2-16\)
So, we can see the vertex is (-3,-16), meaning that where \(x > -3\), the function will be increasing on that interval
Given the equation: x^2+6x+8=0
By using the equation editor or uploading a picture, rewrite the equation in the form:
(x-h)^2=k
Answer:
Use the completing the square method
which is
(x+ (b/2))^2 - (b/2)^2 + c
x^2+6x+8 = 0
a = 1 b = 6 c = 8
b/2 = 3
(x+3)^2 - 9 + 8 = 0
becomes
(x+3)^2 -1 = 0
which becomes
(x+3)^2 = 1
ADDITIONAL:
i don’t know why they said (x-h) since there are no negatives in this
let me explain
(x-h) ^2 is the same as (x-h)(x-h) which leaves us with
x^2 - 2xh + h
but the equation we start with is
x^2 + 6x + 8 = 0
look at the signs
the middle term’s one is different
The area of a triangle can be found using the formula: Area 1/2 . base. height. Find the area of the triangle pictured below, where the measurements are given in meters (m) 8 m 13 m m2
Answer:
The area of the given triangle is 52 sq meters
Explanation:
Given that the area of a triangle can be found using the formula:
Area = 1/2 base . height.
The base of the give triangle is 13m, the height is 8m.
Using these,
Area = 1/2 * 13 * 8
= 52 square meters
If each 4 in. on the scale drawing below equals 5 feet, what is the actual area of the shape in square units?
Answer:
200
i just know its 200 no explanation
Can you help please on this
Answer:
5
Step-by-step explanation:
PLS HELP! weights (in pounds) of catfish caught in the river: 4.8 3 2.7 4.4 4.8 9.9 What is the outlier? A) 3 lbs B) 4.8 lbs C) 9.9 lbs D) none
The correct answer is C) 9.9 lbs as it is above the upper boundary 6.4865, it is the outlier in this dataset.
What is an outlier?An outlier is an observation that is much higher or lower than the other observations in a dataset.
In this case, the weights of the catfish range from 2.7 to 4.8 lbs, with one observation that is much higher at 9.9 lbs.
Therefore, 9.9 lbs is the outlier in this dataset.
To find the outlier in this dataset, we can calculate the interquartile range (IQR).
This is done by first calculating the first quartile (Q1) and third quartile (Q3).
The Q1 for this dataset =3.75
and the Q3= 4.675.
IQR= Q3 - Q1
= 0.925.
We then calculate the lower boundary as Q1 - (1.5 x IQR) = 2.3625.
The upper boundary is Q3 + (1.5 x IQR)= 6.4865.
Since 9.9 lbs is above this upper boundary, it is the outlier in this dataset.
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Two sides of a triangle have lengths 43 and 67. The angle included between these sides measures 27degrees°. To the nearest hundreth, what is the length of the third side?
The length of the third side of the triangle, to the nearest hundredth, is approximately 54.75 units.
1. We have a triangle with two known side lengths: 43 and 67 units.
2. The angle included between these sides measures 27 degrees.
3. To find the length of the third side, we can use the Law of Cosines, which states that \(c^2 = a^2 + b^2\) - 2ab * cos(C), where c is the third side and C is the included angle.
4. Plugging in the known values, we get \(c^2 = 43^2 + 67^2\) - 2 * 43 * 67 * cos(27).
5. Evaluating the expression on the right side, we get \(c^2\) ≈ 1849 + 4489 - 2 * 43 * 67 * 0.891007.
6. Simplifying further, we have \(c^2\) ≈ 6338 - 5156.898.
7. Calculating \(c^2\), we find \(c^2\) ≈ 1181.102.
8. Finally, taking the square root of \(c^2\), we get c ≈ √1181.102 ≈ 34.32.
9. Rounding to the nearest hundredth, the length of the third side is approximately 34.32 units.
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What is the equivalent expression of 3x^2-4x-3
Answer:
C. 3(x+1)(x-1)-4x
Step-by-step explanation:
3(x+1)(x-1)-4x
(x+1)(x-1)=x^2-1
3(x^2-1)-4x
3x^2-4x-3
pleas helppp i need this i will give brainly crown
Answer:
1. Signed
2. True, -(30/6)=-5, 30/-6=-5, hence they are equal
3. True
Step-by-step explanation:
Answer:
Question 5 is true
Question 4 is false
Step-by-step explanation:
I am not sure about the first question because numbers that are either positive or negative are called integers, however, this is not one of the options.
A company produced in the first quarter 6,905 pieces in the second quarter the same company produced 795 pieces more than in the first quarter under these conditions how many pieces did the company produce in the first semester?
Answer: 14,605 pieces.
Step-by-step explanation:
In the second quarter, the company produced 795 pieces more than in the first quarter.
So, the total pieces produced in the second quarter can be calculated as:
6905 + 795 = 7700
The total pieces produced in the first semester (two quarters) can be calculated as:
6905 + 7700 = 14,605
Therefore, the company produced 14,605 pieces in the first semester.
The number of pieces the company produced in the first semester was 14,605 pieces.
How many?The question asks to calculate how many pieces a company produced in the first semester, considering the production of two quarters.
In the first quarter, the company produced 6,905 pieces, as indicated in the question.
Already in the second quarter, the company produced 795 more pieces than in the first quarter, which means that the production in the second quarter was:
6,905 + 795 = 7,700 pieces.
To know the company's total production in the first semester, just add the productions of the two quarters:
6,905 + 7,700 = 14,605 pieces
hello anyone pls help me I'm so stuck I'm scared pls help me I promise I give many points and I'll give the brainliest:(
Answer:
2 or3 ,5,7,11 I suppose please correct if wrong
Answer:
It is basically a question of probability so
Probability = Number of event
Number of sample space
Number of sample space = 12
Since the event needed is a prime number so first list the numbers 1 to 12 which is (1,2,3,4,5,6,7,8,9,10,11,12) so the prime numbers there are (2,3,5,7,11) so therefore the number of event will be 5
THEREFORE:
p = \(\frac{5}{12}\)
Step-by-step explanation:
sin theta =20 degrees opposite=45 find hyp
By trigonometric functions, the length of the hypotenuse is approximately equal to 131.571.
How to calculate the hypotenuse of a right triangle by trigonometric functions
In this problem we find the measure of an angle and its opposite side from a right triangle, whose representation is shown in the image attached below.
Trigonometric functions are transcendent expression that relates an angle of the right triangle with two sides of the same. We can find the measure of the hypotenuse by the definition of the sine function:
sin θ = h / r
Where:
θ - Angle of the right triangle.h - Length of the side opposite to the angle.r - Length of the hypotenuse.If we know that h = 45 and θ = 20°, then the length of the hypotenuse is:
r = h / sin θ
r = 45 / sin 20°
r ≈ 131.571
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Part A: The area of a square is (9x2 + 24x + 16) square units. Determine the length of each side of the square by factoring the area expression completely. Show your work. (5 points)
Part B: The area of a rectangle is (16x2 − 25y2) square units. Determine the dimensions of the rectangle by factoring the area expression completely. Show your work. (5 points)
Answer:
Part A
9x^2 + 24x + 16 = (3x + 4)(3x + 4)length of each side = 3x + 4 units.
Part B:
16x^2 - 25y^2= (4x + 5y )( 4x - 5y)
length = 4x + 5y and width = 4x - 5y
Using - your favorite statistics software package, you generate scatter plot which displays a linear form You find regression equation and the standard deviation for both variablesThe standard deviation for X is 1.34, and the standard deviation for y is 3.6. The regression equation is reported 4 1.891 What fraction of the variation in y can be explained by the variation in the values of x? (
The regression line is yˆ = 4 + 1.891x , the coefficient of determination of two variables or the fraction of the variation in y that can be explained by the variation in the values of x is 0.51..
Here the fitted regression equation of y on x is
yˆ = 4 + 1.891x ---(*)
where, x --> Independent variable
yˆ --> predicted value of the dependent variable
Now, b₁ = slope cofficient = 1.891 ~ 1.91
(estimated from least squares method)
We have given that,
Standard deviations for X = 1.34 = sₓ say
Standard deviations for Y = 3.6 = sᵧ say
we know, b₁ = r₀( sₓ/sᵧ ) where ro is corr(X,Y)
=> 1.91 = r₀ (3.6/1.34)
=> 1.91×1.34/ 3.6 = r₀
=> r₀ = 0.71944
Defining, R² = cofficient of determination of two variables = Proportion of variation in Y , explained by the variation in the value of X, through the regression model.
= (r₀)² = (0.71944)² = 0.505442
R² = 0.505442 ~ 0.51 (in two decimals)
Hence, the cofficient of determination is 0.51..
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Complete question:
Using your favorite statistics software package, you generate a scatter plot which displays a linear form. You find a regression equation and the standard deviation for both variables. The standard deviation for x is 1.34 , and the standard deviation for y is 3.6 . The regression equation is reported as y = 4 + 1.891x . What fraction of the variation in y can be explained by the variation in the values of x? (Enter your answer as a decimal between 1 and 2.)
515,060 to the nearest hundred thousand
Answer:
500,000
hope this helps
find sec \theta given point (7,\sqrt(15)
The exact value of the secant function of the point (x, y) = (7, √15) is equal to 8 / 7.
What is the exact value of a trigonometrical function?
Herein we have the coordinates of a point set on Cartesian plane, which represents the end of the hypotenuse of a right triangle. Now we must find the exact value of the secant function associated to the angle created by that point:
sec θ = 1 / cos θ
By definition of trigonometric functions and Pythagorean theorem:
sec θ = 1 / (x / r)
sec θ = r / x
sec θ = √(x² + y²) / x
If we know that x = 7 and y = √15, then the exact value of the secant function is:
sec θ = √(7² + 15) /7
sec θ = 8 / 7
The exact value of the secant function of the point (x, y) = (7, √15) is equal to 8 / 7.
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Find the value 10 4 exponent
Find the exact value of the expression. cos(160°) cos(10°) + sin(160°) sin(10°)
Answer:
Step-by-step explanation:
cos a cos b+sin a sin b=cos (a-b)
cos 160 cos 10+sin 160 sin 10=cos (160-10)
=cos 150
=cos (180-30)
=-cos 30
=-√3/2
The value of the given trigonometric expression is -0.8659.
What are trigonometric angles?Trigonometric angles are the angles in a right-angled triangle using which different trigonometric functions can be represented. Some standard angles used in trigonometry are 0º, 30º, 45º, 60º, 90º.
The given expression is cos(160°) cos(10°) + sin(160°) sin(10°).
Here, cos160° = -0.9396
cos10° = 0.9848
sin160° = 0.3420
sin10° = 0.1736
(-0.9396)×0.9848+0.3420×0.1736
= -0.8659
Therefore, the value of the given trigonometric expression is -0.8659.
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What is the area of this rectangle? Rectangle with width 5.1 cm and height 11.2 cm. Responses 16.3 cm2 16.3 cm, 2 32.6 cm2 32.6 cm, 2 57.12 cm2 57.12 cm, 2 571.2 cm2
The area of a rectangle with a width of 5.1 cm and a height of 11.2 cm is 57.12 cm².
To find the area of a rectangle, we multiply its length by its width. In this case, the width is given as 5.1 cm and the height (or length) is given as 11.2 cm.
Area = length × width
Area = 11.2 cm × 5.1 cm
Calculating the product, we get:
Area = 57.12 cm²
Therefore, the area of the rectangle is 57.12 cm².
The correct answer is: 57.12 cm².
It is important to note that when calculating the area of a rectangle, we should always include the appropriate unit of measurement (in this case, cm²) to indicate that we are dealing with a two-dimensional measurement. The area represents the amount of space covered by the rectangle's surface.
So, the area of a rectangle with a width of 5.1 cm and a height of 11.2 cm is 57.12 cm².
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If the linear equation 2x+3y=14 is rewritten in function notation as
f(y)=−32y+7,
what is the dependent variable?
If the linear equation 2x+3y=14 is rewritten in function notation as f(y)=−32y+7, the dependent variable is x
In the linear equation 2x+3y=14, we can solve for y by isolating it on one side of the equation:
2x + 3y = 14
3y = -2x + 14
y = (-2/3)x + 14/3
Now, we can write this equation in function notation by replacing y with f(y) and x with the independent variable, usually denoted by 'x'. Therefore, we have:
f(y) = (-2/3)x + 14/3
The function f(y) tells us the value of x for any given value of y. In other words, y is the independent variable, and x is the dependent variable.
Therefore, the dependent variable in the function f(y) = (-2/3)x + 14/3 is x. The value of x is determined by the value of y, which is the input to the function. This means that for any value of y, we can determine the corresponding value of x by plugging in y into the equation and solving for x.
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Write a numerical expression to represent the phrase "the sum of 25 and the cube of 9." Do not evaluate the expression.
Answer:
25 + 9^3
Step-by-step explanation:
In a sample, 76 people or 38% of the people in the sample said that the mayor should be prosecuted for misconduct. How many people were in the sample
Answer: 200
Step-by-step explanation:
given data:
In a sample 76 people or 38% voted the mayor to be prosecuted.
solution:
how many people were in that sample
if 38% = 76 people
therefore;
let
p = total number of people
76/p = 38/100
cross multiply both sides
38p = 7600
divide both sides by 38
38p /38 = 7600 /38
p = 200
the number of people in the sample original was 200.
Please help ill give you anything
Answer:
there you go . i couldnt write it so i took a screenshot of it . mark me brainliest plz
Is a linear model or a quadratic model a better fit?
30
25
20
Variable
15
.
10
5
0
0
5
10 15 20 25 30 35 40
Variable
o quadratic model
thony
o
linear model
Answer:
linear model
Step-by-step explanation:
linear graph will produce a straight line
In a poll of 2000 likely voters, 960 say that the US spends too little on fighting hunger at home. Find a 96% confidence interval for the true proportion of voters who feel this way. a.Find a point estimate for p, the population proportion who thought US spends too little on fighting hunger at home.b.Find a 96% confidence interval for p.
Answer:
a. 0.48
b. The 96% confidence interval for p is (0.457, 0.503).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of \(\pi\), and a confidence level of \(1-\alpha\), we have the following confidence interval of proportions.
\(\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}\)
In which
z is the zscore that has a pvalue of \(1 - \frac{\alpha}{2}\).
In a poll of 2000 likely voters, 960 say that the US spends too little on fighting hunger at home.
This means that \(n = 2000, \pi = \frac{960}{2000} = 0.48\).
This is the answer for question a.
96% confidence level
So \(\alpha = 0.04\), z is the value of Z that has a pvalue of \(1 - \frac{0.04}{2} = 0.98\), so \(Z = 2.056\).
The lower limit of this interval is:
\(\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.48 - 2.056\sqrt{\frac{0.48*0.52}{2000}} = 0.457\)
The upper limit of this interval is:
\(\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.48 + 2.056\sqrt{\frac{0.48*0.52}{2000}} = 0.503\)
The 96% confidence interval for p is (0.457, 0.503).
BRAINLIEST!! HELP! 30 POINTS!
Let theta equal 17pi/12
Part A: Determine tan θ using the sum formula. Show all necessary work in the calculation. (5 points)
Part B: Determine cos θ using the difference formula. Show all necessary work in the calculation. (5 points)
The tan θ and cos θ values of 17π/12 are illustrations of trigonometry ratios
The values of tan θ and cos θ are 2 + √3 and (√2 - √6)/4, respectively
Part A: tan θ using the sum formulaWe have:
θ = 17π/12
Express as sum
θ = 9π/12 + 8π/12
Simplify
θ = 3π/4 + 2π/3
The above becomes
tan(17π/12) = tan(3π/4 + 2π/3)
Using the sum formula, we have:
tan(A + B) = [tan(A) + tan(B)]/[1 - tan(A)tan(B)]
Substitute known values
tan(3π/4 + 2π/3) = [tan(3π/4) + tan(2π/3)]/[1 - tan(3π/4)tan(2π/3)]
Evaluate the expression
tan(3π/4 + 2π/3) = [-1 - √3]/[1 - (-1)(-√3)]
Evaluate the product
tan(3π/4 + 2π/3) = [-1 - √3]/[1 - √3]
Rationalize
\(tan(\frac{3\pi}4 + \frac{2\pi}3) = \frac{-1 - \sqrt3}{1 - \sqrt3} * \frac{1 + \sqrt3}{1 + \sqrt3}\)
Evaluate the product
\(tan(\frac{3\pi}4 + \frac{2\pi}3) = \frac{-(1 + \sqrt3)^2}{1 - 3}\)
This gives
\(tan(\frac{3\pi}4 + \frac{2\pi}3) = \frac{-(1 + 3 + 2\sqrt 3)}{-2}\)
\(tan(\frac{3\pi}4 + \frac{2\pi}3) = \frac{-(4 + 2\sqrt 3)}{-2}\)
Divide
\(tan(\frac{3\pi}4 + \frac{2\pi}3) = 2 + \sqrt 3\)
So, we have:
tan(17π/12) = 2 + √3
Part B: cos θ using the difference formula.We have:
θ = 17π/12
Express as difference
θ = 9π/4 - 5π/6
The above becomes
cos(17π/12) = cos(9π/4 - 5π/6)
Using the difference formula, we have:
cos(A - B) = cos(A)cos(B) + sin(A)sin(B)
So, we have
cos(17π/12) = cos(9π/4)cos(5π/6) + sin(9π/4)sin(5π/6)
Evaluate
\(cos(\frac{17\pi}{12}) = \frac{\sqrt 2}{2} * - \frac{\sqrt 3}{2} + \frac{\sqrt 2}{2} * \frac 12\)
Evaluate
\(cos(\frac{17\pi}{12}) = \frac{\sqrt 2}{2} (- \frac{\sqrt 3}{2} + \frac 12)\)
Evaluate the difference
\(cos(\frac{17\pi}{12}) = \frac{\sqrt 2}{2} (\frac{1 - \sqrt 3}{2})\)
Expand
cos(17π/12) = (√2 - √6)/4
Hence, the values of tan θ and cos θ are 2 + √3 and (√2 - √6)/4, respectively
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