Answer:
b = d/2ac
Step-by-step explanation:
Which sentence is true about a right triangle?
A. One angle measures 90°.
B. All angles measure 90°.
C. All angles measure more than 90°.
Thing
D. All angles measure less than 90°.
E.
One angle measures more than 90°.
Answer:
a. One angle measures 90 degrees.
Find the measure of each angle indicated. Round to the nearest whole degree.
SHOW WORK
On average, Amadou drinks 2/3 of a 10-ounce glass of water in 1 1/4 hours. How many glasses of water does he drink in one hour? Enter your answer as a whole number, proper fraction, or mixed number in simplest form.
Answer:
Rate = Amount / Time
R = (2/3 * 10) / (5/4) oz/hr
R = (80 / 15) oz / hr = 16 / 3 oz / hr = 5 1/3 oz / hr
Check:
5 1/3 * 5/4 = 16 / 3 * 5 / 4 = 80 / 12 = 20 / 3 = 6 2/3 oz in 1 1/4 hr
2/3 * 10 = 20 / 3 = 6 2/3 oz in 1 1/4 hr
In one hour, Amadou drinks \(4\frac{7}{12}\) ounces of water.
What is a fraction?A fraction is written in the form of p/q, where q ≠ 0.
Fractions are of two types they are proper fractions in which the numerator is smaller than the denominator and improper fractions where the numerator is greater than the denominator.
Given, Amadou drinks 2/3 of a 10-ounce glass of water in 1 1/4 hours,
So, Amadou drinks (2/3)×10 = 5/3 ounces of water in 11/4 hours.
∴ In 1 hour he drinks (5/3)/(11/4) ounces of water.
= 55/12 ounces.
= \(4\frac{7}{12}\) ounces.
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Which expression is equivalent to (2x + 3)2 – 5?
square root of 5 times square root of 8
Answer:
6.32455532034
Rounded: 6.32
Hope this helps! :)
Witch value of x makes the equation 24x+16=-2(6x-8) true?
Answer:
X = 0
Step-by-step explanation:
Because if X equaled 0 then both sides would be equaled to 16.
share what you know about the properties of multiplication...!
Answer:
- changing the order of the numbers we are multiplying, does not change the product
Step-by-step explanation:
7 x 8 x 11 x 2 = 11 x 7 x 2 x 8
1232 = 1232
Hope it helps!
If Sam drives his car 171 miles in 9 hours, what is his speed
Find a power series representation for the function and determine the interval of convergence 3. f(x)= 4. f(x) = 1-4x2 4 5. f(x) =- 3-x 6, f(x)= 2x + 3 7. f(x) = r16 + 16 8. f(x)= 2x2 1 9. f(x) = x-1 r2 x + a 10. f(x) =-+ a2, a > 0
1. f(x) =\(1 - 4x^2 + 8(x^2)^2/2! - ...\) this represents a power series representation for the function f(x) = \(1 - 4x^2.\)
2.f(x) = \(-3 - x^6 + (x^6)^2/2! - ...\) this represents a power series representation for the function f(x) =\(-3 - x^6.\)
1. For the function f(x) =\(1 - 4x^2,\) we can express it as a power series by expanding the terms around x = 0. We can rewrite the function as f(x) =\(1 - 4x^2 = 1 - 4(x^2) = 1 - 4(x^2)^1.\)
By using the binomial series expansion, we have:
f(x) = \(1 - 4(x^2)^1 = 1 - 4(x^2)(1) + 4(1)(-1)(x^2)^2/2! + ...\)
Simplifying the terms, we get:
f(x) =\(1 - 4x^2 + 8(x^2)^2/2! - ...\)
The interval of convergence can be determined by considering the values of x for which the series converges. In this case, the power series representation of f(x) will converge for values of x within the interval (-1, 1). The endpoints x = -1 and x = 1 are excluded from the interval of convergence.
2. For the function f(x) = -\(3 - x^6,\)we can similarly express it as a power series by expanding the terms around x = 0. We can rewrite the function as f(x) =\(-3 - x^6 = -3 - (x^6)^1.\)
Expanding the series using the binomial series expansion, we have:
f(x) =\(-3 - (x^6)^1 = -3 - (x^6)(1) + (1)(-1)(x^6)^2/2! + ...\)
Simplifying the terms, we get:
f(x) = \(-3 - x^6 + (x^6)^2/2! - ...\)
The interval of convergence for this power series representation is the set of values of x for which the series converges. In this case, the power series representation will converge for all values of x since there are no terms dependent on x. Therefore, the interval of convergence is (-∞, ∞).
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Lots of points + brainlyist. Pls.
The interpretation of the given compound interest expression is:
2400 is the amount of initial deposit
1.03 is the amount
12t is the number of times the account has compounded since it opened
How to Interpret Compound Interest Problems?The formula for compound interest is:
A = P(1 + (r/t))^(nt)
Where:
A = final amount
P = initial principal balance
r = interest rate
n = number of times interest applied per time period
t = number of time periods elapsed
We are given the equation as:
S = 2400(1.03)^(12t)
Thus:
2400 is the amount of initial deposit
1.03 is the amount
12t is the number of times the account has compounded since it opened
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pls help :(
read and answer the question
Answer: Your answer should be C) 171! Hope this helps you!
Step-by-step explanation:
i’ll give brainliest for this one question to be explained throughly.
brad made a graph showing how many students were absent from school every day last week.
use the graph to answer the questions.
4. Is the relation represented by the graph a function? Why or why not?
Answer:
The relation represented by the graph is not a function
Step-by-step explanation:
A function by definition is "a relation from a set of inputs to a set of outputs". For this graph there's no constant rate of change, you can't form a line with the points, and you can't write an equation or inequality from the points. There's no sort of relationship between the number of days and the number of students who are absent, so it's not a function.
Answer:
1. 1,7 2,10 3,5 4,7 5,9
2. 5
3. 2 10 Students were absent on day 2.
4.The graph is a function because each x-value is paired with a single y-value.
a bin of candy holds 10 1/2 lbs. how many 3/4 lb boxes of candy can you put in the bin
You can put 14 boxes of candy weighing 3/4 lb each in the bin.
To determine how many 3/4 lb boxes of candy can fit in a bin, we divide the total weight of the bin by the weight of each box.
First, let's convert the mixed number 10 1/2 lbs to an improper fraction.
10 1/2 lbs = (10 * 2 + 1) / 2 = 21/2 lbs
Next, we divide the total weight of the bin (21/2 lbs) by the weight of each box (3/4 lb):
(21/2 lbs) / (3/4 lb) = (21/2) * (4/3) = (21 * 4) / (2 * 3) = 84/6 = 14
As a result, you can fill the bin with 14 boxes of sweets that each weigh 3/4 lb.
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Ingrid wants to buy a $17,000 car in 6years. How much money must she deposit at the end of each quarter in an account paying 5.5% compounded quarterly so that she will have enough to pay for her car?
Ingrid needs to deposit approximately $558.95 at the end of each quarter to have enough money to buy the $17,000 car in 6 years.
To calculate the amount Ingrid needs to deposit at the end of each quarter, we can use the future value of an annuity formula. The future value (FV) of an annuity is given by the formula:
FV = P * ((1 + r/n)(n*t) - 1) / (r/n)
Where:
P is the periodic deposit
r is the annual interest rate (as a decimal)
n is the number of compounding periods per year
t is the number of years
In this case, Ingrid wants to accumulate $17,000 in 6 years, with a quarterly compounding rate of 5.5% (0.055) and 4 compounding periods per year. Plugging these values into the formula:
17,000 = P * ((1 + 0.055/4)²⁴ - 1) / (0.055/4)
By solving this equation, we find that Ingrid needs to deposit approximately $558.95 at the end of each quarter to accumulate enough money to pay for her car.
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Which equation for the circle with center (4,8) and radius2?
The equation for a circle with center located at (a,b) and radius r is given by:
(x - a)² + (y - b)² = r²
Therefore, if a circle has radius r = 2 and is centered at (3,2), its equation is given by:
Option D: (x - 3)² + (y - 2)² = 4
slope intercept form calculator with slope and y-intercept
The equation of a line is typically written as y=mx+b where m is the slope and b is the y-intercept.
If you know the slope (m) any y-intercept (b) of a line, this page will show you how to find the equation of the line.
Fill in the slope of the line...
The slope is ____
Example: The slope is 3
...and the y-intercept.
The y-intercept is ____
Example: The y-intercept is -7
The required answer is the y = 3x - 7.
The slope-intercept form of a linear equation is written as y = mx + b, where m represents the slope and b represents the y-intercept. To find the equation of a line when you know the slope and y-intercept, simply substitute the values into the equation.
step-by-step explanation:
1. Start with the equation y = mx + b, where m is the slope and b is the y-intercept.
2. Identify the given slope and y-intercept values.
3. Substitute the given values into the equation.
- Replace the variable m with the given slope value.
- Replace the variable b with the given y-intercept value.
4. Simplify the equation by performing any necessary calculations.
For example, the slope is 3 and the y-intercept is -7. substitute these values into the equation:
y = 3x - 7.
The equation of the line, given the slope of 3 and the y-intercept of -7, is y = 3x - 7.
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50/100 as a decimal and percent
help me please!!!!!
Calculate a confidence interval for the population proportion of adults who have read a book in either print or digital format in the preceding 12 months. Provide the interval in the form of (lower bound,upper bound). Give the bounds to four decimal places
We can say with 95% confidence that the true proportion of adults who have read a book in either print or digital format in the preceding 12 months lies between 0.
to calculate the confidence interval for the population proportion of adults who have read a book in either print or digital format in the preceding 12 months, we need to know the sample proportion, sample size, and confidence level. let's assume that a random sample of n adults was selected and p is the sample proportion of adults who have read a book in either print or digital format in the preceding 12 months. we will use the formula:
(lower bound, upper bound) = (p - z*sqrt((p*(1-p))/n), p + z*sqrt((p*(1-p))/n))
where z is the z-score corresponding to the desired confidence level. for example, if we want a 95% confidence interval, z = 1.96. if we want a 99% confidence interval, z = 2.58.
let's assume that a sample of 500 adults was selected and 300 of them reported having read a book in either print or digital format in the preceding 12 months. then the sample proportion is:
p = 300/500 = 0.6
if we want a 95% confidence interval, the z-score is 1.96. substituting these values into the formula, we get:
(lower bound, upper bound) = (0.6 - 1.96*sqrt((0.6*(1-0.6))/500), 0.6 + 1.96*sqrt((0.6*(1-0.6))/500))
simplifying this expression, we get:
(lower bound, upper bound) = (0.5516, 0.6484) 5516 and 0.6484.
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You need to strengthen a 22% alchohol solution with a pure alcohol solution to obtain a 40% solution. How much pure alcohol should you add to 100 milliliters of the 22% solution?
To obtain a 40% alcohol solution from a 22% solution, you need to add 18% more alcohol.
How to find this?
100 ml of 22% alcohol solution contains 22 ml of pure alcohol and 78 ml of other ingredients.
Therefore, to obtain a 40% solution, you need 40 ml of pure alcohol in every 100 ml of solution.
So, 18 ml of pure alcohol should be added to 100 ml of 22% solution to obtain 40% solution.
Another way to calculate this is:
You can calculate the amount of pure alcohol you need to add by multiplying the initial volume of the solution (100ml) by the percentage increase in alcohol content (18%) .
100ml * 18% = 18ml
So you would need to add 18ml of pure alcohol to 100ml of 22% alcohol solution to obtain a 40% alcohol solution.
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help!!
A $40,000 does it with a 1.5% interest rate compounded quarterly for 6 years.
Answer: The total amount at the end of 6 years would be $47,971.27.
Step-by-step explanation:
1. Calculate the quarterly interest rate (1.5/4) = 0.375%
2. Calculate the number of quarters (6 years * 4 quarters) = 24 quarters
3. Calculate the amount after 6 years = $40,000 * (1 + 0.00375)^24 = $47,737.91
The fluctuation of water depth at a pier is shown in the figure below. One of the following values gives the positive difference, in feet, between the greatest water depth and the least water depth shown in this graph. Which value is it? F. 3G. 6H. 9J. 12K. 19
The greatest water depth is 12 feet
The least water depth is 6 feet
The positive difference is
12 - 6 = 6 feet
The answer is G
what is a congruent polygon
A congruent polygon refers to two or more polygons that have the same shape and size. There must be an equal number of sides between two polygons for them to be congruent.
Congruent polygons have parallel sides of equal length and parallel angles of similar magnitude. When two polygons are congruent, they can be superimposed on one another using translations, rotations, and reflections without affecting their appearance or dimensions. Concluding about the matching sides, shapes, angles, and other geometric properties of congruent polygons allows us to draw conclusions about them.
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EXPERT NEEDED!! please help me with these! much appreciated
The value of a is -4 from the given system of linear equations.
The system of given equations are ax+12y=-6 and 2x-6y=4.
What is a linear system of equations?A system of linear equations consists of two or more equations made up of two or more variables such that all equations in the system are considered simultaneously. The solution to a system of linear equations in two variables is any ordered pair that satisfies each equation independently.
Here, ax+12y=-6 -------(I) and 2x-6y=4 -------(II)
Given, no solution for the system
So, (a1/a2) = (b1/b2) ≠ (c1/c2)
Now, a/2 = 12/(-6)
a=-4
Hence, the value of a is -4 from the given system of linear equations.
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A 40 foot ladder is set against the side of a house so that it reaches up 24 feet.
If Lily grabs the ladder at its base and pulls it 4 feet farther from the house,
how far up the side of the house will the ladder reach now? (The answer is not
20 ft.) Round to the nearest tenth of a foot.
Answer:17.4 ft
Step-by-step explanation:
When the ladder is pulled 4 feet farther from the house, it will reach up 32 feet along the side of the house.
What is Trigonometry?Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.
We can use the Pythagorean theorem to solve this problem. Let's call the distance that the ladder reaches up the side of the house "x".
According to the problem, we know that the ladder is 40 feet long and reaches up 24 feet when it's set against the side of the house.
So, we can set up the following equation:
40² = 24² + x²
Simplifying this equation, we get:
1600 = 576 + x²
1024 = x²
Take square root on both sides
x = 32
Hence, when the ladder is pulled 4 feet farther from the house, it will reach up approximately 32 feet along the side of the house.
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f(x) = 3^x; find f(0)
Answer:
f(0)=1
Step-by-step explanation:
The question asks us to find f(0). We want to find what f(x), or y is, when x is equal to 0.
f(x)=3^x
Therefore, we can substitute 0 in for x.
f(0)=3^0
Evaluate the exponent, 3^0.
Any number raised to the power of zero is equal to 1.
f(0)=1
Answer:
1
Step-by-step explanation:
f(0) = 3^0
f(0) = 1
anything to the 0th power = 1
Last week, Thomas ran 5 1/4 miles. This week, he planes to run 1/2 as far as he ran last week. How many miles does Thomas plan to run this week?
Answer:
2.625
Step-by-step explanation:
Last week Thomas ran 5 1/4 miles
This week he plans to run 1/2 miles as far
Therefore the number of miles he plans to run cann be calculated as follows
= 5 1/4 × 1/2
= 21/4 × 1/2
= 21/8
= 2.625
Hence Thomas plans to run 2.625 miles
the test in an if function must evaluate to either a true or a false.
Yes, the test in an "if" function must evaluate to either a True or a False value.
An "if" function, also known as a conditional statement, is used to perform specific actions based on whether a certain condition is met or not. The test or condition within the "if" function needs to be evaluated as either True or False in order for the program to decide which action to execute. If the test evaluates to True, the program will perform the action within the "if" block, and if it evaluates to False, it will either execute the action in the "else" block (if present) or simply skip the "if" block.
When using an "if" function in programming, it is essential for the test or condition within the statement to result in a boolean value, which is either True or False. This is because the program needs to determine whether the condition is met or not, so it can decide which set of actions to execute. If the condition evaluates to True, the code within the "if" block will be executed, while if it evaluates to False, the code within the "else" block (if present) will be executed, or the "if" block will be skipped altogether.
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I don't get what to do with this!
Answer:
76+76=152
Step-by-step explanation:
Find a formula for the nth partial sum of the series and use it to determine if the series converges or diverges. If a seres converges, find its sum
[infinity]
Σ (In √n+1 - in √n)
n = 1
Sn=
(type an exact answer, using radicals as needed)
The sum of the series is____
(type an integer or a fraction.)
The formula for the nth partial sum of the series is equal to Sn = ln √(n+1), and the series diverges.
Get a formula for the nth partial sum of the series, by writing out the first few terms,
S₁ = (ln √2 - ln √1)
= ln √2
S₂ = (ln √3 - ln √2) + (ln √2 - ln √1)
= ln √3 - ln √1
S₃= (ln √4 - ln √3) + (ln √3 - ln √2) + (ln √2 - ln √1)
= ln √4 - ln √1
Pattern here expressed the nth partial sum is equal to
ln √(n+1) - ln √1.
Simplify this to,
ln (√(n+1)/√1)
= ln √(n+1).
nth partial sum is equal to,
Sn = ln √(n+1)
Series converges or diverges,
Take the limit of the nth partial sum as n approaches infinity we have,
\(\lim_{n \to \infty}\) ln √(n+1)
= ln ∞
= ∞
Here, the limit of the nth partial sum diverges to infinity, the series itself diverges.
⇒the series does not have a sum.
Therefore, the nth partial sum of the series is Sn = ln √(n+1), and the series diverges.
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