Answer:
Attached graph
Step-by-step explanation:
Ajutatima pls!!!!!Va dau Coroana!!!!!!
Answer:
cronana va de
Step-by-step explanation:
M(3,-4) is the midpoint between R(x,y) and S(6,0). Find the coordinates of R
Answer:
R = (0,-8)
Step-by-step explanation:
Let's look at the difference between S, and the midpoint M.
S(6,0) - M(3,-4) = N(3,4) This will help us find R(x,y)
Next, take M, and subtract N from it.
M(3,-4) - N(3,4) = (0,-8). This is the value of R.
I need help with geometry! I need to find x and y, please help asp
Check the picture below.
An report describes a survey of 251 adult Americans. Participants in the survey were asked how often they change the sheets on their bed and were asked to respond with one of the following categories: more than once a week, once a week, every other week, every three weeks, or less often than every three weeks. For this group, 11% responded more than once a week, 51% responded once a week, 26% responded every other week, 5% responded every three weeks, and 7% responded less often than every three weeks.
(a) Use the given information to make a relative frequency distribution for the responses to the question. How Often? Relative frequency
More than once a week Once a week Every other week Every three weeks Less often than
every three weeks
More than once a week: 0.11
Once a week: 0.51
Every other week: 0.26
Every three weeks: 0.05
Less often than every three weeks: 0.07
Relative Frequency Survey ResultsTo make a relative frequency distribution, follow these steps:
Count the number of occurrences of each category in the data. In this case, 11% of the 251 participants responded "more than once a week", so the number of occurrences for this category is 0.11 * 251 = 27.61 (rounded to 28). Similarly, 51% of the participants responded "once a week", so the number of occurrences for this category is 0.51 * 251 = 127.51 (rounded to 128). And so on for the other categories.
Divide the number of occurrences for each category by the total number of participants. In this case, the total number of participants is 251, so the relative frequency for "more than once a week" is 28 / 251 = 0.11. The relative frequency for "once a week" is 128 / 251 = 0.51. And so on for the other categories.
And that's it! These are the relative frequencies for each category in the data.
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A trail that wraps around a lake is 1 7/8 miles long. Mara completed one lap around the lake. If she ran 4/5 of the distance and walked the rest. How far did she run?
Answer:
1 1/2 miles
Step-by-step explanation:
The problem statement tells us Mara ran 4/5 of 1 7/8 miles.
Product with mixed numberThe procedure usually recommended for multiplying mixed numbers is to convert them to improper fractions first. Doing that, we find the product to be ...
\(\dfrac{4}{5}\times1\dfrac{7}{8}=\dfrac{4}{5}\times\dfrac{1\times8+7}{8}=\dfrac{4}{5}\times\dfrac{15}{8}\\\\=\dfrac{4\cdot3\cdot5}{5\cdot4\cdot2}=\dfrac{3}{2}=\boxed{1\dfrac{1}{2}}\)
Mara ran 1 1/2 miles.
Which relation describes the graph?
The relation that describes the graph {(-1, 3), (-2, 1), (-3, -3), (-4, -5)}
What is graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
The coordinates of given graph:
(-1, 3)(-2, 1)(-3, -3)(-4, 5)Hence, the relation is {(-1, 3), (-2, 1), (-3, -3), (-4, 5)}.
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Solve the inequalities below. Write the solution set in interval notation and graph the solution.
8x−12>158x-12>15
Solution:
Interval notation for the solution:
Step-by-step explanation:
Inequality Interval Notation Graph
Sajan Rai
Solve the inequalities below. Write the solution set in interval notation and graph the solution.
8x−12>158x-12>15
Solution:
Interval notation for the solution:
(-∞,5/8) U (5/8, ∞)
To graph the solution, we need to find the points that make the inequality true and shade the region that corresponds to these points. On the number line, we can start by finding x values that make the inequality equal to zero:
8x - 12 = 0
x = 12/8 = 3/2
and
15 - 8x = 0
x = 15/8 = 9/4
Next, we need to test values that are less than 3/2 and greater than 9/4 to determine the direction of the inequality. If the inequality is true for values less than 3/2, then we shade the region to the left of 3/2. If the inequality is true for values greater than 9/4, then we shade the region to the right of 9/4. In this case, since the inequality is "greater than," the shading goes to the right of 9/4 and to the left of 3/2.
3 upon 5 + 2 upon 7
Answer:
3
Step-by-step explanation:
3/7/7 which is 3/7 x 7 which is 21/7 which is 3
woule be amazing if you marked me brainliest
Answer:
\( \frac{3}{5} + \frac{2}{7} = \frac{31}{35} = 0.885\)
simple math! i'll mark you if you get it right
Answer:
5
Step-by-step explanation:
Brainly plsss
I need to use a double angle or half angle formula to simplify the given expression in the photo
According to the double-angle identity:
\(\cos (2C)=\cos ^2C-\sin ^2C\)So, let's solve (a):
(a) Given:
\(\cos ^2(30)-\sin ^2(30)=\cos (A)\)Comparing with the identity:
C = 30°
Then, 2C = 2*30 = 60°
Since
A = 2C, A = 60°
Answer: A = 60°.
(b) Given,
\(\cos ^2(2x)-\sin ^2(2x)=\cos (B)\)Comparing with the identity:
C = 2x
2C = 2*2x = 4x
Then,
B = 2C = 4x
Answer: B = 4x°.
In summary,
(a) A = 60°.
(b) B = 4x°.
F
G
H
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If the diameter of a circle is 16 cm and the
intercepted arc length is 6m, what is the
measure of the central angle in radians?
3
8
3
7T
3
T
3²7
The measure of the central angle is 0.75 radians
How to solve an equation?An equation is an expression that can be used to show the relationship between two or more numbers and variables using mathematical operators.
The area of a figure is the amount of space it occupies in its two dimensional state.
The length of an arc with an angle of Ф is given by:
Length of arc = (Ф/360) * (π * diameter)
The diameter is 16 cm and intercepted arc length is 6 cm, hence:
Length of arc = (Ф/360) * (π * diameter)
6 = (Ф/360) * (π * 16)
Ф = 42.97°
Ф = 42.97° * π/180 = 0.75 radian
The measure of the central angle is 0.75 radians
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Calculator
What is the volume of this figure?
Enter your answer in the box.
ft³
8 ft
25 ft
4 ft
20 ft
5 ft
The volume of the figure, by splitting it into two cuboids comes to be 3300 ft³.
What is the volume of a cuboid?The volume of a cuboid is the product of its three dimensions i.e. length, breadth, and height.
Let us split the given figure into two cuboids
The dimensions of one cuboid = 20 ft*25 ft *5ftThe dimension of the other cuboid = 4 ft*25ft * 8ftSo, the volume of the figure will be the sum of the volume of both the cuboids.
So, the volume of the cuboid with dimensions 20 ft x 25 ft x 5ft
= 20 x 25 x 5
=2500 ft³.
The volume of the cuboid with dimensions 4 ft x 25ft x 8ft
=4 x 25x 8
=800 ft³.
So, the volume of the figure = 2500 + 800 =3300 ft³.
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The coldest recorded temperature in the United States is
–
80°F, in Alaska. The warmest recorded temperature in the United States is 134°F, in California.
How much higher is the warmest recorded temperature than the coldest recorded temperature?
The warmest recorded temperature than the coldest recorded temperature is 54oF
How to determine the amount of temperature difference?The given parameters are:
Coldest recorded temperature = 80°F, in Alaska
Warmest recorded temperature = 134°F, in California
Next, we calculate the difference between these temperatures
Difference = Warmest recorded temperature - Coldest recorded temperature
Substitute the known values in the above equation
Difference = 134 - 80
Evaluate
Difference = 54
Hence, the amount of temperature difference is 54oF
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The iPhone battery capacity is normally distributed with a mean of 4 years and a standard deviation of 10 months.
a. What is the probability that a randomly selected battery will last more than 5 years?
b. What percentage of batteries will last between 5 and 6 years?
c. What percentage of batteries will last less than 4 years?
d. What percentage of batteries will last between 2.5 and 4.5 years?
Convert 506 minutes to hours and minutes.
Answer:
8 hours and 26 minutes
Step-by-step explanation:
To convert 506 minutes to hours and minutes, we can use the fact that there are 60 minutes in one hour.
First, we can divide 506 by 60 to find the number of hours:
506 ÷ 60 = 8 with a remainder of 26
This means that 506 minutes is equal to 8 hours and 26 minutes.
Therefore, the conversion of 506 minutes to hours and minutes is:
8 hours and 26 minutes
the value of eva's car is $9000 this value decreased by 15% work out the new value of evs car
Answer:
Step-by-step explanation:express the 15% as a fraction divided by 100.Multiply the result by $9000.
The result is $ 1350
Subtract the result from new price of the car.$9000-$1350
=$7650
The side of a triangle are in the ratio 4:4:3 what kind of triangle is it (b) calculate the smallest angle of the triangle to the nearest degree
The smallest angle of the equilateral triangle is 60 degrees
If the sides of a triangle are in the ratio 4:4:3, it implies that the lengths of the sides are proportional.
To determine the type of triangle, we examine the side lengths. Since all three sides are equal in length, we have an equilateral triangle.
For an equilateral triangle, all angles are equal. To calculate the smallest angle, we divide the total sum of angles in a triangle (180 degrees) by the number of angles, which is 3:
Smallest angle \(= \frac{180}{3} = 60\)\) degrees.
Therefore, the smallest angle of the equilateral triangle is 60 degrees (to the nearest degree).
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Find the measures of angles 1-10
Answer:
1) 78
2) 28
3) 74
4) 28
5) 74
6) 106
7) 74
8) 74
9) 78
10) 78
Marissa decides to save AND invest for retirement. She makes an initial deposit of $2000 in her savings account which earns 1.5% annually. Her contributions are $150 a month. Then, she makes an initial deposit of $1,000 in the US stock market through an index fund contributing $300 a month with a 6.8% return annually. What is the balance of Marissa’s retirement account after 30 years?
Using compound interest formula, her balance after retirement is $430797.77
What is Marissa's BalanceTo calculate the balance of Marissa's retirement account after 30 years, we need to determine how much her savings account and index fund will be worth after 30 years, taking into account the interest earned and her monthly contributions.
First, we'll calculate the balance of her savings account:
Initial deposit: $2000
Interest rate: 1.5%
Monthly contribution: $150
Number of months: 30 years * 12 months/year = 360 months
Using the compound interest formula, the balance of her savings account after 30 years will be:
2000*(1+0.015/12)^360 + 150*(((1+0.015/12)^360-1)/(0.015/12))
A = $71280.33
Next, we'll calculate the balance of her index fund:
Initial deposit: $1000
Interest rate: 6.8%
Monthly contribution: $300
Number of months: 30 years * 12 months/year = 360 months
Using the compound interest formula, the balance of her index fund after 30 years will be:
A = 1000*(1+0.068/12)^360 + 300*(((1+0.068/12)^360-1)/(0.068/12))
A = $359517.44
Then we can add the balance of both the savings account and the stock market to get the total balance of Marissa's retirement account.
Her balance = $71280.33 + $359517.44 = $430797.77
Please note that the above answer is an estimation, in reality there are other factors such as taxes, inflation, fees, and market conditions that should be considered in a real-world scenario.
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please help me i need this done today report cards are coming out this Friday i tried solving them but i can't please help mww
Answer:
A; 62.4 cm
Step-by-step explanation:
Write an equation for a polynomial with all the following features: The degree is 5, the polynomial has 4 terms and the graph of the polynomial crosses the vertical axis at y=12
we must apply the formula
\(y=x^2+bx\times c\)\(3.25x^5+4x^{4^{}}\text{ }+5.5x^{3\text{ }}+x^2\)now we apply the formula to find x,
\(\begin{gathered} h=\frac{b}{2(a)} \\ h=\frac{-4}{2(1)} \\ h=-2 \end{gathered}\)having already x now we apply the formula to find the vertex at y that intersects at point 12.
\(\begin{gathered} f(-2)=3.25(-2)^{5\text{ }}+4(-2)^{4^{}}+5.5(-2)^{3^{}}\text{ }+(-2)^{2^{}} \\ f(-2)=104-64-44-8 \\ =-12 \end{gathered}\)simplify ((a³ - 27) / (a - 3)) (a² - 3a + 9)
Answer:
\(a^{4}\)+9a²+81
Step-by-step explanation:
((a³ - 27) / (a - 3)) (a² - 3a + 9)
An inlet pipe on a swimming pool can be used to fill the pool in 15 hours. The drain pipe can be used to empty the pool in 20 hours. If the pool is \(\frac{1}{3}\) filled and then the inlet pipe and drain pipe are opened, how many more hours would it take to fill the pool? Round your answer to two decimal places, if needed.
_____________ hours
Answer:
40 hoursStep-by-step explanation:
Rate of filling is 1/15Rate of draining is 1/20If both lines are open the rate of filling is:
1/15 - 1/20 = 4/60 - 3/60 = 1/60 per hourSince tank is 1/3 full we need to fill the remaining 2/3 of it.
Time required:
2/3 : 1/60 = 2/3*60 = 40 hoursSomeone help me with this
a. Category with the greatest frequency is 20 - 24
b. 14 students
c. The percentage is 7%
What is frequency?Frequency is simply described as the number of times an event or observation happened in a given study or experiment that is carried out.
From the information given, we have that;
a. The category with the greatest frequency is the one with most words spelt, we have;
20 - 24
b. The number of students that spelt 35 - 39 words is traceable to
14 students
c. If the total number of students is 200
Then, the percent of students in the 35 - 39 category is;
14/200 × 100/1
Multiply the values
7%
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Suppose that a scarf company estimates that its monthly cost is
C(a)=500x2 + 300 and its monthly revenue is
R(x) = -0.523 +6002-200+300, where x is in thousands of
scarves sold. The profit is the difference between the revenue and the cost.
What is the profit function, P(x)?
The profit function is P(x) = -500.523x^2 + 600x - 200.
To find the profit function, P(x), we need to subtract the cost function, C(a), from the revenue function, R(x).
Given:
Cost function: C(a) = 500x^2 + 300
Revenue function: R(x) = -0.523x^2 + 600x - 200 + 300
Profit function, P(x), is obtained by subtracting the cost function from the revenue function:
P(x) = R(x) - C(a)
P(x) = (-0.523x^2 + 600x - 200 + 300) - (500x^2 + 300)
Simplifying the expression:
P(x) = -0.523x^2 + 600x - 200 + 300 - 500x^2 - 300
P(x) = -500x^2 - 0.523x^2 + 600x + 300 - 200 - 300
P(x) = -500x^2 - 0.523x^2 + 600x - 200
Combining like terms:
P(x) = (-500 - 0.523)x^2 + 600x - 200
Simplifying further:
P(x) = -500.523x^2 + 600x - 200
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What is the difference between math content and math skills
Answer
B
Step-by-step explanation:
Took quiz
The American Community Survey (ACS), part of the United States Census Bureau, conducts a yearly census similar to the one taken every ten years, but with a smaller percentage of participants. The most recent survey estimates with 90% confidence that the mean household income in the U.S. falls between $69,720 and $69,922. Find the point estimate for mean U.S. household income and the error bound for mean U.S. household income.
Answer:
The point estimate used was of $69,821.
The error bound is of $101.
Step-by-step explanation:
A confidence interval has two bounds, a lower bound and an upper bound.
A confidence interval is symmetric, which means that the point estimate used is the mid point between these two bounds, that is, the mean of the two bounds.
The error bound is half the difference between these two values.
In this question:
90% confidence that the mean household income in the U.S. falls between $69,720 and $69,922.
Point estimate:
(69720+69922)/2 = 69821
The point estimate used was of $69,821.
Error bound:
(69922 - 69720)/2 = 101
The error bound is of $101.
Please simplify 6p-2q+4r-2p+3s+5q
Answer:
\(6p - 2q + 4r - 2p + 3s + 5q\)
group the like terms together:
\( = (6p - 2p) + ( - 2q + 5q) + 4r + 3s\)
simplify:
\( = { \boxed{ \boxed{4p + 3q + 4r + 3s}}}\)
(Numerical problems) A car is running with the velocity of 72km/h. What will be it's velocity after 5s if it's acceleration is -2m/s square
Step-by-step explanation:
72km/h = 72,000m/3,600s = 20m/s.
Using Kinematics, we have
v = u + at
= (20m/s) + (-2m/s²)(5s)
= 10m/s.
Hence the velocity will be 10m/s. (or 36km/h)
How would I figure out a linear equation with two plot points with fractions? (1/3(6),3) and (1/2(19),-2) are my two plot points. I was able to graph them on Desmos, but I can't seem to figure out how I would go about figuring out the slope and y-intercept in this case... the fractions are what's throwing me off here. Please help!
Answer: \(m=\frac{-30}{79},\ y=5.40\)
Step-by-step explanation:
Given
Points are \(\left(6\frac{1}{3},3\right),\ \left(19\frac{1}{2},-2\right)\)
Convert mixed numeral to fraction
\(\left(6\frac{1}{3},3\right)\Rightarrow \left(\dfrac{19}{3},3\right)\\\\\left(19\frac{1}{2},-2\right)\Rightarrow \left(\dfrac{39}{2},-2\right)\)
Slope of the line is
\(\Rightarrow m=\dfrac{3-(-2)}{\dfrac{19}{3}-\dfrac{39}{2}}\\\\\Rightarrow m=\dfrac{5}{\dfrac{38-117}{6}}\\\\\Rightarrow m=\dfrac{-30}{79}\)
Equation of line
\(\Rightarrow \dfrac{y-3}{x-\dfrac{19}{3}}=\dfrac{-30}{79}\\\\\text{for y-intercept, put x=0}\\\\\Rightarrow \dfrac{y-3}{0-\dfrac{19}{3}}=\dfrac{-30}{79}\\\\\Rightarrow y-3=\dfrac{190}{79}\\\\\Rightarrow y=3+2.40\\\Rightarrow y=5.40\)