Answer:
Adele is incorrect
It's four tenths, six hundredths and 2 thousandths.
I think.
Please correct me if I'm wrong
Step-by-step explanation:
PLEASE HELP FAST! my two problems are in the photo.
Answer:
8.) x=115 degrees
9.) y=102 degrees
Step-by-step explanation:
8.) A triangles total degrees is 180, so 180-50=130. now the missing angles are congruent, so 130/2=65. and now we're working on the bottom right angle. which is 65. what we need can be added to the angle we just found to add up to 180, so reverse it. 180-65=115. so x=115 degrees.
9.) because y is congruent to the angle across from it, we can just assume y and 78 is equal to 180. 180-78=102. so y=102 degrees. Hope this helps!
what are the angle measures given the figure is a rhombus???
Answer:
∠ 1 = 136°
Step-by-step explanation:
The diagonals of a rhombus bisect the angles, thus other side of the diagonal to 22° is also 22°. Making the whole angle = 44°
Consecutive angles are supplementary, thus
∠ 1 + 44° = 180° ( subtract 44° from both sides )
∠ 1 = 136°
Find a in degrees.
a
6
√11
5
[?]°
Round to the nearest hundredth.
Answer: \(33.56^{\circ}\)
Step-by-step explanation:
\(\sin \alpha=\frac{\sqrt{11}}{6}}\\\\\alpha=\sin^{-1} \left(\frac{\sqrt{11}}{6}} \right)\\\\\alpha \approx 33.56^{\circ}\)
Answer:
33.56
Step-by-step explanation:
Will give brainliest!!
I need help with this please.
Answer:
C.
Step-by-step explanation:
Translate this phrase into an Algebraic expression
what is 57 more than 3 Ziana's score
Find the value of each variable
The missing sides of the special right triangles are listed below:
Case 1: y = √2 · 13, x = 13
Case 2: x = y = 15√2
Case 3: x = 6, y = 3√3
Case 4: x = 17√3, y = 17
Case 5: x = y = 10
Case 6: x = 50, y = 25
Case 7: x = y = 4√7
Case 8: x = 16√3, y = 8√3
Case 9: x = 11√3, y = 33
Case 10: x = 3√2, y = 2√6
Case 11: x = √10, y = 2√5
Case 12: x = 4√7, y = 8√21
How to find the length of missing sides
Herein we find twelve cases of special right triangles whose missing sides must be determined by using the following rules:
45 - 90 - 45 Right triangle
r = √2 · x = √2 · y
30 - 60 - 90 Right triangle
x = (1 / 2) · r
y = (√3 / 2) · r = √3 · x
Where:
x - Shortest leg.y - Longest leg. r - Hypotenuse.Case 1
y = √2 · 13
x = 13
Case 2
x = y = 15√2
Case 3
x = 3 / (1 / 2)
x = 6
y = 3√3
Case 4
x = 34 · (√3 / 2)
x = 17√3
y = 34 · (1 / 2)
y = 17
Case 5
x = y = 10
Case 6
x = 25√3 / (√3 / 2)
x = 50
y = 25√3 / √3
y = 25
Case 7
x = y = 2√14 · √2 = 2√28 = 4√7
Case 8
x = 24 / (√3 / 2)
x = 48 / √3
x = 16√3
y = 24 / √3
y = 8√3
Case 9
x = 22√3 · (1 / 2)
x = 11√3
y = 22√3 · (√3 / 2)
y = 33
Case 10
x = √18
x = 3√2
y = √6 / (1 / 2)
y = 2√6
Case 11
x = √10
y = √20
y = 2√5
Case 12
x = 4√21 / √3
x = 4√7
y = 4√21 / (1 / 2)
y = 8√21
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Find the next two terms in the sequence 42,37,32,27
Answer:
22-17
Step-by-step explanation: the sequence is going by -5
If you have an independent group design and ordinal data, which test do you use?
The test to use when there's an independent group design and ordinal data is the Kruskal Wallis test
Given: Independent group and ordinal data. To find which test to use.
What's the Kruskal Wallis test?
The Kruskal Wallis test is used when you have one independent variable with two or further situations and an ordinal dependent variable. In other words, it's thenon-parametric interpretation of ANOVA and a generalized form of the Mann- Whitney test system since it permits two or further groups.
The Kruskal Wallis test is used when you have one independent variable with two or further situations and an ordinal dependent variable. In other words, it's thenon-parametric interpretation of ANOVA and a generalized form of the Mann- Whitney test system since it permits two or further groups.
The null thesis for the Kruskal- Wallis test simply states that there are no methodical or harmonious differences among the treatments being compared.
How to calculate the Kruskal Wallis test?
The computation of the Kruskal- Wallis statistic requires
Combine the individualities from all the separate samples and rank order the entire group.Regroup the individualities into the original samples and cipher the sum of the species( T) for each sample. A formula is used to cipher the Kruskal- Wallis statistic which is distributed as a ki-square statistic with degrees of freedom equal to the number of samples minus one. The attained value must be lesser than the critical value for ki- forecourt to reject H0 and conclude that there are significant differences among the treatments.Hence as is mentioned for an independent group design and ordinal data so we use the Kruskal Wallis test.
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We can use the Kruskal Wallis test when we have an independent group design and ordinal data.
We are given an independent group design and ordinate data.
We need to tell which test to use on them.
The Kruskal Wallis test is used when you have one independent variable with two or more situations and one ordinal dependent variable. In other words, it is an interpretation of ANOVA table and a generalized form of the Mann- Whitney test system.
The null hypothesis for the Kruskal- Wallis test tells us that:
There are no methodical or harmonious differences among the treatments being compared.
Therefore, we can use the Kruskal Wallis test when we have an independent group design and ordinal data.
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what is the distance between (12,12) (-12,-12)
Answer:
\(24\sqrt{2}\) or 33.94112
Step-by-step explanation:
Use the distance formula to determine the distance between the two points.
\(d = \sqrt{(x_{2} -x_{1})^{2} + (y_{2} - x_{1})^{2} }\)
d = distance
\((x_{1}, y_{1})\) = coordinates of the first point
\((x_{2}, y_{2})\) = coordinates of the second point
Pls helppppppppp!!!!!!’
Answer:
it c
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
A small company manufactures a certain item and sells it online. The company has a business model where the cost C, in dollars, to make x items is given by the equation
C = 20/3x + 50band the revenue R, in dollars, made by selling x items is given by the equation R = 10x . The break-even point is the point where the cost and revenue equations intersect.
Graph the cost and revenue equations on the xy-coordinate plane provided. Select the "Line" tool. Plot two points, then a line will connect the points.
9514 1404 393
Answer:
see attached
Step-by-step explanation:
The break-even point is on both curves. The y-intercept can be used for the other point in each case.
The break-even point is where cost and revenue are the same:
20/3x +50 = 10x
50 = 10/3x . . . . . . . . subtract 20/3x
15 = x . . . . . multiply by 3/10
r = c = 10(15) = 150 . . . . for x = 10
Two points you can use for graphing the lines are ...
cost: (0, 50) and (15, 150)
revenue: (0, 0) and (15, 150)
RS bisects PQ at s. If PQ=10cm, then what Is PS?
A 3cm
B 5cm
C 4cm
D6cm
Answer:
5
Step-by-step explanation:
bisect means to divide equally in half
so you would divide 10 by 2
10/2 = 5
The length of PS is 5cm. A line is split into two equal parts by a bisector.
What is meant by bisect?A line is split into two equal parts by a bisector. Therefore, when we refer to the perpendicular bisector of a line segment AB, we mean that it bisects or divides AB into two equal halves.
When anything is divided into two equal or congruent portions, usually by a line, it is said to have been bisected in geometry. The line is then referred to as the bisector. Segment bisectors and angle bisectors are the sorts of bisectors that are most frequently taken into consideration.
A line that precisely divides a line segment connecting two locations in half at a 90 degree angle is known as a perpendicular bisector. Finding the midpoint and negative reciprocal of two points, then entering these values into the equation for a line, will get the perpendicular bisector of the two points.
Given,
Bisect = PQ/RS
Simplifying the above equation then we get,
= 10/2
= 5cm
Therefore, The length of PS is 5cm. A line is split into two equal parts by a bisector.
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i rlly need help with this somebody i will give brainlist
Answer:
the answer is 10
Step-by-step explanation:
I just puted value and calculated it's simple
Princess is making a portfolio for her math subject. She decorated it with circles made with different colored paper. If she used 15 pieces of circle with 20cm diameter each circle, what is the total area of all the circlces she used?
The total area of all the Circles used by Princess is 4710 square centimeters.
The total area of all the circles used by Princess, The formula for the area of a circle is given by:
A = πr²
where A represents the area and r is the radius of the circle. Since we are given the diameter of each circle (20 cm), we can calculate the radius by dividing the diameter by 2:
r = 20 cm / 2 = 10 cm
Substituting this value into the area formula, we have:
A = π(10 cm)²
Now, let's calculate the area of one circle:
A = 3.14 * (10 cm)² ≈ 314 cm²
Therefore, the area of one circle is approximately 314 square centimeters.
Since Princess used 15 circles, we can find the total area by multiplying the area of one circle by the number of circles:
Total area = 314 cm² * 15 = 4710 cm²
Hence, the total area of all the circles used by Princess is 4710 square centimeters.
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Given v = 60sinθ, what is the instantaneous voltage when θ = 30⁰?Question 11 options:6034.643051.96
30
Explanations:
Given the expression for the instantaneous voltage expressed as:
\(v=60\sin \theta\)Given the following parameter:
θ = 30⁰
Substitute the given parameter into the formula to have:
\(\begin{gathered} v=60\sin 30^0 \\ v=60(0.5) \\ v=30 \end{gathered}\)Therefore the instantaneous voltage when θ = 30⁰ is 30.
Given f(x) = 2x5 + 12, what is the value of (f-1 o f)(2)?
Answer:
2
Step-by-step explanation:
You are trying to find (f' o f)(2). This means that you need to put f(x) into f'(x) and solve for 2.
First, find f'(x). To do this, take the original function and switch the x and y values.
y = 2x⁵ + 12
x = 2y⁵ + 12
x - 12 = 2y⁵
(x - 12)/(2) = y⁵
y = ⁵√(x - 12)/(2)
Now, you need to put f(x) into the inverse function through the x-value. Simplify completely.
y = ⁵√((2x⁵ + 12) - 12)/(2)
y = ⁵√((2x⁵)/(2)
y = ⁵√x⁵
y = x
Now plug in the value given to you.
(f⁻¹ o f)(2) = 2
The answer is 2.
Solve the formula a(m+r) -t=s for a.
9514 1404 393
Answer:
a = (s +t)/(m +r)
Step-by-step explanation:
Add t, then divide by the coefficient of 'a'.
\(a(m+r)-t=s \qquad\text{given}\\\\a(m+r)=s+t \qquad\text{add $t$}\\\\\boxed{a=\dfrac{s+t}{m+r}} \qquad\text{divide by $m+r$}\)
What is the value of X?
The value of x when secant intersects is 25 degrees.
How to find angles when secant intersect?A secant is an extension of a chord in a circle which is a straight line segment of which the endpoints lie on the circle.
The secants BG and DG intersect at G. Therefore, using secant rule,
55° = 1 / 2 (100 + 35 - x)55°
= 1 / 2 (135 - x)55°
= 135 / 2 - x / 255
= 67.5 - x / 2
subtract 67.5 from both sides of the equation
55 - 67.5 = - x / 2-12.5
= - x / 2
cross multiply
-12.5(2) = - x
divide both sides by -1
x = 25 degrees
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Can someone help me with this
Answer:
b) 8
I assume the question is suggesting that you cant "cut" any of the cubes
so that the "division" has to result in an integer
Step-by-step explanation:
7 85.71428571
8 75
9 66.66666667
10 60
please help me with this question
8x+2=10 can someone solve this
Answer:
x = 1
Step-by-step explanation:
Subtract 2 from both sides
8x = 8
Divide both sides by 8
X = 1
Answer:
x = 1
Step-by-step explanation:
Move all terms that don't contain x to the right side and solve.
Which of the following is the slope of a line that passes through the points (-5, 2) and
(10,11)?
Answer:
slope is 0.6
Step-by-step explanation:
y1-y2 2-11
x1-x2 -5-10
equals
-9 over 15
simplify
3/5, decimal form is 0.6
hoped this helped
What is the simplified base for the function f(x) = 2(7272x)?
02
O 3
O 9
O 18
Answer:
C.9
Step-by-step explanation:
The simplified base for the function given is 9.
What is a function?A function in math is a rule or expression that defines a relationship between one variable (the input or independent variable) and another variable (the output or dependent variable). A function assigns to each input exactly one output.
Given that, a function f(x) = 2(∛27)²ˣ, we need to find its simplest base,
So,
f(x) = 2(∛27)²ˣ
= 2(3)²ˣ [∵ 3³ = 27, ∴ ∛27 = 3]
= 2(3²)ˣ
= 2(9)ˣ
Hence, the simplified base for the function given is 9.
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Can anyone help me? I'm pretty puzzled
Angle 1 + Angle 2 = 180°
(7x)° + (x + 20)° = 180°
(8x + 20)° = 180°
8x = 180 - 20
8x = 160
x = 160/8
x = 20
7(20) = 140° and 20 + 20 = 40°
Answer: 40° and 140°
Tammy accidentally wrote a check for more money than she had in her checking account. When she got her statement, she saw that her balance was -125 . If she deposits 1/5 of the money owed into her account, what will be her new balance?
Answer:
-100
Step-by-step explanation:
1/5 of -125 will be -25.
So, if she deposits 1/5 of what she owes, then she will deposit $25.
Her balance will then become -100 because she paid back 25.
Her new balance is -100
how many of them contain beads of at least two different colors? (hint: calculate how many beads contain exactly 1 color, and subtract from the first answer.)
To determine the number of beads that contain at least two different colors, subtract the number of beads that contain only one color from the total number of beads.
1. Calculate the number of beads that contain exactly one color:
Let's assume there are n colors available.For each color, there are n beads of that color.So, the total number of beads of only one color is n * n.2. Calculate the total number of beads:
If we assume there are m beads in total, where each bead can be of any color.The total number of beads is m.3. Subtract the number of beads that contain only one color from the total number of beads to find the number of beads with at least two different colors:
The number of beads with at least two different colors = Total number of beads - Number of beads with exactly one color.Number of beads with at least two different colors = m - n * n.Let's take an example to illustrate this:
Suppose there are 4 different colors available (n = 4), and there are a total of 100 beads (m = 100).
Calculate the number of beads that contain exactly one color:
Number of beads with exactly one color = n * n = 4 * 4 = 16.
Calculate the number of beads with at least two different colors:
Number of beads with at least two different colors = Total number of beads - Number of beads with exactly one color.
Number of beads with at least two different colors = 100 - 16 = 84.
So, in this example, there are 84 beads that contain at least two different colors.
In general, to find the number of beads that contain at least two different colors, subtract the number of beads with exactly one color from the total number of beads, using the formula derived in steps 1 and 2.
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A ceiling fan manufacturer claims that 89% of homes in the South have ceiling fans. A random sample of 100 Southern homes was surveyed, and 85 had ceiling fans. Let p hat = the proportion of the sample homes that have ceiling fans.
The probability that 85% or fewer homes in the South have ceiling fans is 0.098. Does this result provide convincing evidence against the manufacturer’s claim?
Options:
Yes, it is expected that at least 85 homes have ceiling fans.
Yes, the probability of seeing the sample result is so far from what is expected that the probability of it occurring by chance alone is very unlikely.
No, the difference between the sample result and what is expected is not extreme enough.
No, there is a very small chance of seeing the sample result. It is unlikely to occur by chance alone.
Answer:
No, the difference between the sample result and what is expected is not extreme enough.
Step-by-step explanation:
See attached picture
) Let SL(2, R) be the set of 2 x 2 matrices with entries in R and determinant +1. Prove that SL(2, R) is a group (called the special linear group) under matrix multiplication in the following steps:
(a) Show that SL(2, R) is closed under matrix multiplication. That is, if A and B are in
SL(2, R), then AB € SL(2, R).
(b) Verify that SL(2, R) has an identity element I. Show that I SL(2, R) and that AI IA A for all AE SL(2, R). =
(c) Show that every element of SL(2, R) has an inverse. That is, given A e SL(2, R), there is a matrix A-1 € SL(2, R) such that AA-1 A-¹A = I.
(d) Show that SL(2, R) is nonabelian by giving an example of matrices A and B in SL (2, R) such that AB BA (note this also demonstrates that the general linear group GL(2, R) is nonabelian).
To prove that SL(2, R) is a group under matrix multiplication, we need to show the following properties:
We know that SL(2, R) satisfies all the properties of a group, namely closure, identity, inverse, and nonabelian property, making it a group under matrix multiplication
(a) Closure: If A and B are in SL(2, R), then AB is also in SL(2, R).
(b) Identity: There exists an identity matrix I in SL(2, R) such that AI = IA = A for all A in SL(2, R).
(c) Inverse: For every A in SL(2, R), there exists a matrix A^(-1) in SL(2, R) such that AA^(-1) = A^(-1)A = I.
(d) Nonabelian: There exist matrices A and B in SL(2, R) such that AB ≠ BA, demonstrating that SL(2, R) is nonabelian.
Let's prove these properties step by step:
(a) Closure:
Let A and B be matrices in SL(2, R). Since A and B are in SL(2, R), they have determinant +1, which means det(A) = det(B) = 1. We can calculate the determinant of the product AB as follows:
det(AB) = det(A)det(B)
Since det(A) = det(B) = 1, we have det(AB) = 1 * 1 = 1. Thus, AB has determinant +1, and therefore AB is in SL(2, R). Hence, SL(2, R) is closed under matrix multiplication.
(b) Identity:
The 2x2 identity matrix I = [1 0; 0 1] has determinant +1, which means I is in SL(2, R). For any matrix A in SL(2, R), we have:
AI = A and IA = A
Therefore, I is the identity element in SL(2, R).
(c) Inverse:
For any matrix A in SL(2, R), since det(A) = 1, A is invertible. The inverse of A, denoted as A^(-1), also has determinant +1. Thus, A^(-1) is in SL(2, R). We have:
AA^(-1) = A^(-1)A = I
Therefore, every element A in SL(2, R) has an inverse A^(-1) in SL(2, R).
(d) Nonabelian:
To show that SL(2, R) is nonabelian, we need to find matrices A and B in SL(2, R) such that AB ≠ BA.
Let A = [1 1; 0 1] and B = [1 0; 1 1]. Both A and B have determinant +1 and thus belong to SL(2, R). We can calculate the product AB and BA as follows:
AB = [1 1; 1 1]
BA = [2 1; 1 1]
Since AB ≠ BA, we have shown that SL(2, R) is nonabelian.
Therefore, SL(2, R) satisfies all the properties of a group, namely closure, identity, inverse, and nonabelian property, making it a group under matrix multiplication.
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how do I get on the leaderboard
I have 1900 something points way more than these people. Is it about how many questions you ask?
Answer:
No its about how many you get PER DAY
Step-by-step explanation: