Answer:
1 1/3
Step-by-step explanation:
Choose all of the statements that contain enough information to determine that triangle ABC is an equilateral triangle.
A. ZA ZB
B. ZA ZB ZZC
C. MZA + m2C = 90°
D. AB = BC
E. AB = BC = AC
Answer: B
Step-by-step explanation:
what is the lenght of something that has a base of 6 and a height of 15
Answer:
it would just be 6
Step-by-step explanation:
base and lenght are the same thing
solve for b (exact values) i got 2 sqrt 3 / 3 = b but i’m not sure if it’s right :(
Answer:
tan30°= opp÷adj = b÷1/2 =0.577=b÷0.5 then, b=0.2885
Find the difference of 3 1/2 - 1 1/9 * help this is due in 1 hour
Answer:
the answer is 2.38
Step-by-step explanation:
Answer:
2 7/18 if you need it in fraction form.
Suppose IQ scores were obtained for 20 randomly selected sets of twins. The 20 pairs of measurements yield x = 96.62, y= 94.75, r=0.879, P-value = 0.000, and ŷ = -2.59 + 1.01x, where x represents the IQ score of the twin born first. Find the best predicted value of ý given that the twin born first has an IQ of 109?
Answer:the best predicted value of ý when the twin born first has an IQ of 109 is 107.50
Step-by-step explanation:
Given the regression equation:
ŷ = -2.59 + 1.01x
We need to predict the value of ý when x (IQ score of the twin born first) is 109.
So we substitute x = 109 into the regression equation:
ŷ = -2.59 + 1.01(109)
ŷ = -2.59 + 110.09
ŷ = 107.50
Therefore, the best predicted value of ý when the twin born first has an IQ of 109 is 107.50.
Leila runs at 12 miles per hour. Find the number of miles she can travel if she runs for 1 1/2 hours.
Answer:
18 milesStep-by-step explanation:
Distance = speed * time
d = 12 *1 1/2 = 12*1.5 = 18\(▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪\)
Speed = 12 mph
Time = 1 1/2 hour = 1.5 hour
\(distance = speed \times time\)\(d = 12 \times 1.5\)\(d = 18 \: \: miles\)She can travel 18 miles in 1 1/2 hours
How do I solve this?
The value of cos(θ), is 0.280
The value of tan(θ), is 3.429.
The value of sec(θ), is 3.571.
What are the values of cos(θ), tan(θ), and sec(θ)?
We can use the Pythagorean identity: sin²(θ) + cos²(θ) = 1 to find the value of cos(θ):
cos²(θ) = 1 - sin²(θ)
cos²(θ) = 1 - (24/25)²
cos²(θ) = 1 - 576/625
cos²(θ) = 49/625
Since 0 ≤ θ ≤ π/2, we know that cos(θ) is positive. Therefore:
cos(θ) = √(49/625)
cos(θ) = 7/25
cos(θ) ≈ 0.280
To find the value of tan(θ), we can use the relationship:
tan(θ) = sin(θ) / cos(θ)
tan(θ) = (24/25) / (7/25)
tan(θ) = 24/7
tan(θ) ≈ 3.429
Finally, to find the value of sec(θ), we can use the relationship:
sec(θ) = 1 / cos(θ)
sec(θ) = 1 / (7/25)
sec(θ) = 25/7
sec(θ) ≈ 3.571
Therefore, rounding to three decimal places:
cos(θ) ≈ 0.280
tan(θ) ≈ 3.429
sec(θ) ≈ 3.571
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three sphere of radius 4cm each fit inside a tube calculate the percentage of the tube.
Answer:
66.6% (see below)
Step-by-step explanation:
Each sphere 4/3\(\pi\)r²=4/3\(\pi\)(4²)=268.08cm³
Assuming the tube is the same width and height as the three spheres,
V=\(\pi\)r²h=\(\pi\)(4²)24=1206.37
The three spheres are 268.08*3=804.24cm³
The tube is 1206.37cm³
I’m not sure if your question is asking the percentage of the tube that’s filled, or the percentage that’s unfilled.
Filled: 804.24÷1206.37=0.66666=66.6%
Unfilled: 1206.37-804.24=402.13
402.13÷106.37=0.33333=33.3%
Answer:
Percentage of Tube Unfilled : 33 and 1/3%
Step-by-step explanation:
It's most likely that we want to calculate the percentage of the tube unfilled, as the tube itself wouldn't be provided otherwise. We can start by calculating the volume of the tube --- (1)
The volume of a cylinder is represented by πr²h. Substituting we would receive π(4)²h. h is represented by 3 times the diameter of each sphere, as it is aligned such. Diameter = 2 * r = 2 * 4 = 8, so h = 3 * 8 = 24. Therefore Tube Volume = π(4)²(24) = π(16)(24) = 384π.
Now let's solve for the volume of a sphere, multiplying by three to receive the total volume of all 3 spheres --- (2)
Volume of 1 Sphere : 4 / 3πr³ = 4 / 3π(4)³ = 4 / 3π * 64 = 256 / 3π
Volume of all 3 Spheres : 256 / 3π * 3 = 256π
And now the volume of the tube that is unfilled, will be 384π - 256π = 128π. The total volume of the tube is 384π, so the percentage of the unfilled tube will be 128π / 384π or 128 / 384 = 0.333333333 * 100 = 33.33333...%. Therefore the percentage of the tube that is not filled will be 33.33% approximately, or 33 and 1/3% in exact terms.
Bank A is offering a loan with a simple interest rate of 8% for 2 years. Bank B is offering a loan with a simple
interest rate of 6. 5% for 3 years
兩
$5400
a. Assuming the monthly payments are equal, what is the monthly payment for the four wheeler from Bank A?
from Bank B?
Bank A: $
Bank B: $
a
b. Give reasons for why a person might choose Bank A and why a person might choose Bank B for a loan to buy
the four wheeler. Explain your reasoning.
The monthly payment for the four wheeler from Bank A would be = $261 and from Bank B would be =$268.9
The reason why someone should chose bank A over bank B is that the monthly interest payment is lower than bank B.
What is simple interest?Simple interest is defined as the amount of money that an individual receives due to an investment my in account for a period of time.
For bank A;
The principal amount = $5400
The rate of the investment= 8%
The time for the investment = 2 years.
Simple interest = 5400× 8×2/100
= 86400/100
= $864
The total amount = 5400 + 864 = $6264
The monthly payment for the 2years (that is, 24 months) =
6264/24 = $261.
For bank B;
The principal amount = $5400
The rate of the investment= 6.5%
The time for the investment = 3 years.
Simple interest = 5400× 6.5×3/100
= 105300/100
= $1,053
The total amount = 5400 + 1,053 = $6,453
The monthly payment for the 3years (that is, 36 months) =
6,453/24 = $268.9.
Since, the monthly interest payment for bank A is less than bank B, it will be wiser for an individual to choose bank A.
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Find f(2) if f(x) = (x + 1)2.
09
W
06
05
Does anyone know how to solve these types of triangles?
Answer:
x= 101
Step-by-step explanation:
Exterior angle of triangle states that the exterior angle of a triangle is the sum of the 2 opposite interior angles. This is abbreviated as 'ext. ∠ of ∆'. Thus using the exterior angle theorem,
x°= 64° +37° (ext. ∠ of ∆)
x°= 101°
x= 101
_____
Alternative method:
Let the third angle in the triangle be y°.
Since the sum of the angles in a triangle is 180°,
y° +64° +37°= 180° (∠ sum of ∆)
Simplify:
y° +101°= 180°
y°= 180° -101°
y°= 79°
The sum of the angles on a straight line is 180°.
x° +y°= 180° (adj. ∠s on a str. line)
Substitute y°= 79°:
x° +79°= 180°
x°= 180° -79°
x°= 101°
x= 101
what's 700.00divided by 120
Answer:
\(\Large \boxed{\frac{35}{6} }\)
Step-by-step explanation:
\(\displaystyle \frac{700}{120}\)
Reduce and simplify the fraction to lowest terms.
\(\displaystyle \frac{20(35)}{20(6)}\)
\(\displaystyle \frac{35}{6}\)
factorise x^2-4 in maths
Answer:
(x-2)(x+2)
Step-by-step explanation:
use the difference of squares
x²-4 = x²-2² = (x-2)(x+2)
if the level of significance of a hypothesis test is raised from 0.05 to 0.1, the probability of a type ii error will
As the level of significance increases, the probability of making a type II error decreases.
What is probability?
Probability is a measure of the likelihood or chance of an event occurring. It is a number between 0 and 1, with 0 representing an impossible event and 1 representing a certain event. The probability of an event is calculated by dividing the number of ways the event can occur by the total number of possible outcomes.
If the level of significance of a hypothesis test is raised from 0.05 to 0.1, the probability of a type II error will decrease.
Type II error occurs when we fail to reject a null hypothesis that is actually false. It is the probability of accepting a false null hypothesis. By increasing the level of significance, we are making it easier to reject the null hypothesis, which in turn decreases the probability of accepting a false null hypothesis.
Hence, as the level of significance increases, the probability of making a type II error decreases.
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3
Drag the tiles to the boxes to form correct pairs. Not all tiles will be used.
The table shows the mode of transportation to school for families with a specific number of children.
Mode of Transportation
Car
Number of
Children
0.284
1-2
63
38
3+
25
49
Total
88
87
A family from the survey is selected at random. Match the probability to each event.
0.662
Bus
0.203
0.249
101
74
175
0.624
P (3+ Children Bus)
Total
P(1-2 Children Car) - P (3+ Children Car)
Reset
P (Car 1-2 Children)
0.563
P (Bus 1-2 Children) - P (Bus 3+ Children)
▸
Next
The probability of number of 1-2 Children in car and 3 plus children in car is 0.203.
What is probability?The possibility of the result of any random event is known as probability. This phrase refers to determining the likelihood that any given occurrence will occur.
The probability of P(1-2 children| car). P (3 plus children| car) is given by:
P = 63/88 × 25/88
P=0.203
The probability of P(Bus| 1-2 children). P (Bus | 3 plus children) is given by:
P = 38/101 × 49/74
P=0.249
The probability of P(Car |1-2 Children) is given by:
P= 63/101
P=0.624
The probability of P(3 plus children | Bus)is given by:
P=49/87
P=0.563
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Answer: The picture below
Step-by-step explanation: Correct on Edmentum, if you give me a low rating than you are mean :(
HELP PLEASE HELP HELP PLESAE HELP!
Answer:
15
Step-by-step explanation:
which hypothesis or hypotheses about the relation between life satisfaction and job satisfaction has received the most empirical support?
Recent research has confirmed the Spillover Hypothesis by demonstrating a favourable association between life and job happiness.
According to the spillover hypothesis, behaviour or affect in a family system might flow immediately from one place or connection to another. Transfer takes place in the same valence, which means that one subsystem's negative affect is connected to another's negative affect, or stress at work spills over and intensifies stress at home. The compensatory hypothesis offers a different perspective by arguing that transfer between family subsystems occurs in the opposite valence, leading a person to seek fulfilment in one relationship or environment in order to make up for shortages in another.
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Can somebody please help me with this? Show work. It’s due today
Answer: The surface area of the rectangular box = the amount of wrapping paper needed to cover the rectangular box = 394.24 in.²
Step-by-step explanation:
Surface area = 2(wl + hl + hw).
Volume = Length x Width x Height
Given the following:
Volume = 476.16 in.³
Length = 4.8 in.
Width = 8 in.
Find the height (h) using the volume formula:
476.16 = 4.8 × 8 × h
476.16 = 38.4 × h
476.16/38.4 = h
h = 12.4 in.
Surface area = 2(wl + hl + hw) = 2(8 × 4.8 + 12.4 × 4.8 + 12.4 × 8) = 394.24 in.²
The amount of wrapping paper needed to cover the rectangular box = Surface area = 394.24 in.²
D 2
y(t)+2Dy(t)+10y(t)=4
y(0)=0Dy(0)=−1
Determine the total solution using Laplace Transform Method or Classical Method (30pts.)
The total solution to the given differential equation, y(t) + 2Dy(t) + 10y(t) = 4, with initial conditions y(0) = 0 and Dy(0) = -1, can be determined using the Laplace transform method.
The solution involves finding the Laplace transform of the differential equation, solving for the Laplace transform of y(t), and then applying the inverse Laplace transform to obtain the solution in the time domain.
To solve the given differential equation using the Laplace transform method, we first take the Laplace transform of both sides of the equation. Applying the linearity property and the derivative property of the Laplace transform, we get the transformed equation: [sY(s) - y(0)] + 2sY(s) + 10Y(s) = 4/s,
where Y(s) represents the Laplace transform of y(t) and y(0) is the initial condition. Rearranging the equation, we find:
Y(s) = (4 + y(0) + s) / (s^2 + 2s + 10).
Next, we need to find the inverse Laplace transform of Y(s) to obtain the solution y(t). We can do this by recognizing the denominator of Y(s) as the characteristic equation of the homogeneous equation associated with the given differential equation.
The roots of this characteristic equation are complex conjugates, given by -1 ± 3i. Since the roots have negative real parts, the inverse Laplace transform of Y(s) involves exponential terms multiplied by sinusoidal functions.
After some algebraic manipulation, we can express the solution in the time domain as: y(t) = (2/3)e^(-t)sin(3t) - (4/3)e^(-t)cos(3t).
Therefore, the total solution to the given differential equation, subject to the initial conditions y(0) = 0 and Dy(0) = -1, is given by the above expression.
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pls help me asap
Find the mean and standard deviation for the set of data.
{17, 20, 4, 15, 12, 6, 14, 13, 16}
Answer:
Standard deviation = 5.1
Mean = 13
Median = 14
Step-by-step explanation:
The sample standard deviation measures the spread of a data distribution of the sample. It is usually used to estimate the population standard deviation
The mean of a set of numbers is the sum divided by the number of terms.
Arrange the data in an ascending order and the median is the middle value. If the number of values is an even number, the median will be the average of the two middle numbers.
a vet-med researcher carries out a hypothesis test to evaluate the claim that, in a population of dogs, 85% are good dogs. she obtains an independent sample of 120 dogs, and finds that 94 of these are good dogs. what is closest to the p-value for this result?
The closest answer to the p-value for this result is 0.0124.The p-value for this result, we need to first calculate the test statistic. Since we are testing a proportion, we will use the z-test.
The formula for the z-test is:
z = (p - P) / sqrt(P * (1 - P) / n)
where p is the sample proportion, P is the hypothesized population proportion, n is the sample size, and sqrt is the square root function. In this case, our sample size is n = 120, and our hypothesized population proportion is P = 0.85. Our sample proportion is p = 94/120 = 0.783.
Plugging in these values, we get:
z = (0.783 - 0.85) / sqrt(0.85 * 0.15 / 120) = -2.24
The p-value, we need to look up the area to the left of this value on the standard normal distribution. Using a table or calculator, we can find that this area is approximately 0.0124.
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Autum school holding a voleturing challeng. Students are encouraged to volunteer for at least 1 1/2 hours per week. Volenteers abou the same amount each week. During a 3- week period she volunteers for 6 3/4 hours. Autumn wants to compare her volunteers rate with the challenge rate
Given :
Challenge given is to volunteer for about 1 1/2 hours per week .
Autum did at a rate of 6 3/4 hours per week .
To Find :
The comparison ( ratio ) her volunteers rate with the challenge rate .
Solution :
Simplifying challenge rate in in normal fraction , \(1\dfrac{1}{2}=\dfrac{2+1}{2}=\dfrac{3}{2}\) .
Also , simplifying her rate , \(6\dfrac{3}{4}=\dfrac{(6\times 4)+3}{4}=\dfrac{27}{4}\) .
Now , ratio of his work by challenge is :
\(R=\dfrac{\dfrac{27}{4}}{\dfrac{3}{2}}\\\\\\R=\dfrac{27\times 2}{4\times 3}\\\\R=\dfrac{9}{2}\)
Therefore , the ratio is 9/2 or 4 1/2 .
Hence , this is the required solution .
Autumn volunteered 3/4 hours per week more than the least hours per week of volunteering.
Given that,
Autumn school holding a valeting challenge. Students are encouraged to volunteer for at least 1 1/2 hours per week. Volunteers about the same amount each week. During a 3- week period she volunteers for 6 3/4 hours.
Rate of change is defined as the change in value with respect to time is called rate of change.
Here,
Autumn wants to compare her volunteer rate with the challenge rate,
So
Extra hours of volunteering = 6 3/4 - 3 [ 1 1/2] = 2 1/4
Rate of volunteering per week = [2 1 / 4] / 3 = 3 / 4
Thus, Autumn volunteered 3/4 hours per week more than the least hours per week of volunteering.
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Jamier's Trampoline Park charges $9 to get in and $4 an hour to jump. Alondra's Trampoline Park does not charge a fee to get in, but charges $7 an hour to jump? How many hoursmust you jump in order for the cost to be the same?
Answer:
9+4x = 7x;
9 = 7x-4x;
9 = 3x;
x = 3;
So you need to be there 3 hours to achieve the same cost;
Type the missing numbers.
-30
-25
-20
-15
-10
-5
Answer:
well isn't it pattern so wouldn't it be -35,-40,-45
Use the equation x2 - 10x = 11 to fill in the table below.
a) What number is added to both sides so the left side is a perfect square trinomial?
b) After adding the answer from part a) and factoring the left side, what is being squared on the left side?
Answer:
a) 25
b) the square root of 36 should be done
Step-by-step explanation:
x² - 10x = 11
take half of 10 and square it
x² - 10x + 25 = 11 + 25
(x-5)² = 36
x-5 = \(\sqrt{36}\)
x - 5 = 6 and x - 5 = -6
x = 11 and x = -1
The length of a rectangle is twice as long as it's with the with is 104 inches find the perimeter of the rectangle
Answer:
624 inches
Step-by-step explanation:
According to the scenario, calculation of the given data are as follows,
Width = 104 inches
So, Length = 104 × 2 = 208 inches
Now, we can calculate the perimeter of rectangle by using following formula,
Perimeter of rectangle = 2 ( length + width)
By putting the value, we get
Perimeter of rectangle = 2 ( 208 + 104)
= 624 inches
Please Help 100 POINTS!!!
Answer:
B
Step-by-step explanation:
Answer:
B. \(\frac{x^2}{3^2} +\frac{y^3}{2^2} =1\)
Step-by-step explanation:
What are the conditional proportions of people that were using their phones in the afternoon and the evening
The conditional proportions of people using their phones in the afternoon and the evening can be summarized as follows: A significant proportion of individuals use their phones both in the afternoon and evening, indicating a consistent pattern of phone usage throughout the day.
In the afternoon, many people rely on their phones for various purposes such as work, communication, entertainment, and staying connected to social media. With the advancements in technology and increased accessibility to smartphones, it has become common for individuals to utilize their phones during this time. Whether it's checking emails, browsing the internet, or engaging in social media activities, the afternoon serves as a convenient time for phone usage.
Moving on to the evening, phone usage remains prevalent as individuals unwind and engage in leisure activities. During this time, people often use their phones for entertainment purposes, such as streaming videos, playing games, or engaging in social interactions through messaging apps or social media platforms. The evening also offers a time for catching up on news, reading, or engaging in personal hobbies, which may involve the use of mobile devices.
Overall, the conditional proportions reveal that phone usage is not limited to a specific time of day but rather extends throughout the afternoon and evening. This emphasizes the significant role that smartphones play in our daily lives, providing us with a range of functionalities and opportunities for connectivity and entertainment.
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an exam has 12 problems. how many ways can (integer) points be assigned to the problems if the total of the poitns is 100 and each problem is worth at least five points
The number of ways integer points can be assigned to the 12 problems, given that the total points is 100 and each problem is worth at least five points, can be calculated using a combinatorial approach.
To determine the number of ways, we can use the concept of stars and bars, which is a combinatorial technique used to distribute indistinguishable objects into distinguishable groups. In this case, the stars represent the total points (100) and the bars represent the dividers between the problems.
Since each problem is worth at least five points, we can consider a minimum of five points already assigned to each problem. This means we need to distribute the remaining points (100 - 12*5 = 40 points) among the 12 problems.
Using the stars and bars approach, we have 40 stars (representing the remaining points) and 11 bars (representing the dividers between the 12 problems). The number of ways to arrange these stars and bars is equivalent to the number of ways to assign points to the problems.
The answer, therefore, can be calculated using the formula for combinations with repetition: C(n + k - 1, k - 1), where n is the number of stars (40) and k is the number of bars (11).
Hence, the number of ways to assign integer points to the problems is C(40 + 11 - 1, 11 - 1) = C(50, 10).
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How many 1/4 cubes does it take to fill a box with a volume of 5. 25
Answer:
Each cube with side lengths of 1/4 have a volume of (1/4)3 which means each cube's volume is 0.015625 cubic units. To find how many cubes are needed to fill the prism, and division by 5• 25