The solution to the limit expression \( \lim_{x \to 1} \frac{x^2 - 25}{x - 5} \) is 6
The limit expression is given as:
\( \lim_{x \to 1} \frac{x^2 - 25}{x - 5}\)
Express 25 as 5^2
\( \lim_{x \to 1} \frac{x^2 - 5^2}{x - 5}\)
Express the numerator as the difference of two squares
\( \lim_{x \to 1} \frac{x^2 - 25}{x - 5} = \lim_{x \to 1} \frac{(x - 5)(x +5)}{x - 5}\)
Evaluate the quotient
\( \lim_{x \to 1} \frac{x^2 - 25}{x - 5} = \lim_{x \to 1} (x +5)\)
Remove bracket
\( \lim_{x \to 1} \frac{x^2 - 25}{x - 5} = \lim_{x \to 1} x +5\\ \)
Substitute 1 for x
\( \lim_{x \to 1} \frac{x^2 - 25}{x - 5} = 1 +5\)
\( \lim_{x \to 1} \frac{x^2 - 25}{x - 5} = 6\)
Hence, the solution to the limit expression \( \lim_{x \to 1} \frac{x^2 - 25}{x - 5} \) is 6
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What's the surface area? L:9 W:7 H:5
In order to calculate the surface area, consider the following formula:
S = 2l·w + 2l·h + 2w·h
where
w: width = 7 m
l: length = 9 m
h: height = 5 m
replace the previous parameters into the formula for S:
S = 2(9 m)(7 m) + 2(9 m)(5 m) + 2(7 m)(5 m)
S = 126m² + 90m² + 70m²
S = 286m²
Hence, the surface are of the given figure is 286m²
If 125 kg of food is sufficient for 30 soldiers for 6 days, how long will the food last for 45 soldiers?
Answer:
30 = 6
45 = x
cross multiply
30x = 45*6
30x = 270
divide both sides by
30x/30 = 270/30
X = 9
9-6 = 3 days
50 POINTS AND I WILL MARK BRAINLIEST Find the volume please help
Answer:348
Step-by-step explanation:
For composite prisms, where the bases are a composite shape, the area of the bases is the sum of the areas of the parts it is made of. The volume of the composite prism is then given by multiplying the whole base area by the height of the prism.In math, volume is the amount of space in a certain 3D object. For instance, a fish tank has 3 feet in length, 1 foot in width and two feet in height. To find the volume, you multiply length times width times height, which is 3x1x2, which equals six. So the volume of the fish tank is 6 cubic feet.
Answer:
\( 1,205.8\: {ft}^{3} \)
Step-by-step explanation:
Given object is made up of cylindrical and conical parts.
Fir cylindrical part:
r = 16/2 = 8 ft
h = 4 ft
For conical part:
r = 16/2 = 8 ft
h = 6 ft
Volume of the object = Volume of cylinderical part + Volume of the conical part
\( = \pi {r}^{2} h + \frac{1}{3} \pi {r}^{2} h \\ \\ =\pi \times {8}^{2} \times 4 + \frac{1}{3} \times \pi \times {8}^{2} \times 6 \\ \\ = 64\pi \times 4 + \frac{1}{ \cancel3} \times 64\pi \times \cancel6 \\ \\ = 64\pi(4 + 2) \\ \\ = 64\pi \times 6 \\ \\ = 384\pi \\ \\ = 384 \times 3.14 \\ \\ = 1,205.8 \: {ft}^{3} \)
Divide.
A. 2
B. 3
C. 2 r1
D. 3 r1
Answer: D
Step-by-step explanation:
Graph the circle (x-2)^2 + (y-7)^2 = 4
Answer:
see attached
Step-by-step explanation:
You want the graph of the circle defined by the equation ...
(x-2)^2 + (y-7)^2 = 4.
Circle equationThe equation of a circle with center (h, k) and radius r is ...
(x -h)² +(y -k)² = r²
Comparing this to the given equation, we see ...
h = 2, k = 7, r² = 4
Then r = √4 = 2.
The circle will have its center at (2, 7) and will have a radius of 2. It is shown in the attached graph.
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Please help!!!!
I do not know how to resolve this.
Answer:
5/9
Step-by-step explanation:
A wave is traveling with a speed of 330 m/sec and has a frequency of 110 Hz. Determine its wavelength (λ).
λ= speed/frequency
frequency=speed/ λ
speed= λfrequency
Group of answer choices
3 km
11 m
11 km
3 m
Answer:
11
Step-by-step explanation:
11
A triangle LMN with ln = 12 cm,Nm= x cm, Nk = 6cm and Km 8cm
Calculate the value of
(i) x
(ii) o
The value of x is 9 cm, and angle O is 0 degrees.
To solve the triangle LMN and find the values of x and angle O, we can use the Law of Cosines and the Law of Sines. Let's go step by step:
(i) To find the value of x, we can use the Law of Cosines. According to the Law of Cosines, in a triangle with sides a, b, and c, and angle C opposite to side c, the following equation holds:
c^2 = a^2 + b^2 - 2ab * cos(C)
In our case, we want to find side NM (x), which is opposite to angle N. The given sides and angles are:
LN = 12 cm
NK = 6 cm
KM = 8 cm
Let's denote angle N as angle C, side LN as side a, side NK as side b, and side KM as side c.
Using the Law of Cosines, we can write the equation for side NM (x):
x^2 = 12^2 + 6^2 - 2 * 12 * 6 * cos(N)
We don't know the value of angle N yet, so we need to find it using the Law of Sines.
(ii) To find angle O, we can use the Law of Sines. According to the Law of Sines, in a triangle with sides a, b, and c, and angles A, B, and C, the following equation holds:
sin(A) / a = sin(B) / b = sin(C) / c
In our case, we know angle N and side NK, and we want to find angle O. Let's denote angle O as angle A and side KM as side b.
We can write the equation for angle O:
sin(O) / 8 = sin(N) / 6
Now, let's solve these equations step by step to find the values of x and angle O.
To find angle N, we can use the Law of Sines:
sin(N) / 12 = sin(180 - N - O) / x
Since we know that the angles in a triangle add up to 180 degrees, we can rewrite the equation:
sin(N) / 12 = sin(O) / x
Now, we can substitute the equation for sin(O) from the Law of Sines into the equation for sin(N):
sin(N) / 12 = (6 / 8) * sin(N) / x
Now, we can solve this equation for x:
x = (12 * 6) / 8 = 9 cm
So, the value of x is 9 cm.
To find angle O, we can substitute the value of x into the equation for sin(O) from the Law of Sines:
sin(O) / 8 = sin(N) / 6
sin(O) / 8 = sin(O) / 9
9 * sin(O) = 8 * sin(O)
sin(O) = 0
This implies that angle O is 0 degrees.
Therefore, the value of x is 9 cm, and angle O is 0 degrees.
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The figure for the given question is provided here :
{ (-2, 4), (0, 2), (-1, 3), (4, -2)}
The set of ordered pairs above:
DONE
Domain
-3
4
-1
5
Range
3
7
-2
The mapping diagram above:
DONE
y=x²
DONE
x
-3
-1
y
5
2
-1
The table above:
DONE ✔
The set of ordered pairs above: is a function.
The mapping diagram above: is a function.
y = x²: is a function.
The table above: is not a function.
What is a function?In Mathematics and Geometry, a function is a mathematical equation which is typically used for defining and representing the relationship that exists between two or more variables such as an ordered pair.
Based on the set of ordered pairs, mapping diagram, and the equation above, we can reasonably infer and logically deduce that it represent a function because the input values (domain, x-value, or independent values) are uniquely mapped to the output values (range, y-value or dependent values).
In this context, we can reasonably infer and logically deduce that the table does not represent a function because the input value (-1) has more than output values (2 and 4 respectively).
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Using the information in the Box-and-Whisker plot shown, below what value is three quarters of the data?
A. 7
B. 10
C. 12
D. 17
Answer:
Step-by-step explanation:
A
an integer divided from an integer is an integer
Answer:
YES
Step-by-step explanation:
Answer:
Yes
Step-by-step explanation:
Ashburn Company issued 15-year bonds two years ago at a coupon rate of 8.9 percent. The bonds make semiannual payments. If these bonds currently sell for 113 percent of par value, what is the YTM?
Using an online finance calculator, the yield to maturity (YTM) of the Ashburn Company's bond at a coupon rate of 8.9 percent paying semiannual interest and selling at 113% of par value is 7.45%.
What is the yield to maturity?The Yield to maturity (YTM) is the total return, expressed as an annual rate, anticipated by a bondholder on a bond if it is held until its maturity date.
The maturity date refers to the date when the principal of a fixed investment is repaid at the maturity value.
The yield to maturity can also be computed using the following formula:
YTM = [(Face value/Bond price)1/Time period]-1.
Face (par) value = $100
Bond current price = $113 ($100 x 113%)
Annual coupon rate = 8.9%
Coupon frequency = Semi-annually
Years to maturity = 15 years
Result:
Yield to maturity (YTM) = 7.45%
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What should be subtracted from minus 3 / 4 so has to get 5 / 6 ?
Answer:
Step-by-step explanation:
Step 1:First Make 3/4 and 5/6 into like fractions.Find the L.C.M of 4 and
6,which is 12.
3*3/4*3=9/12
5*2/6*2=10/12
Step 2:Subtract 9/12 from 10/12,which is 1/12.
Two towers make up the Vertical Forest. One is 76 meters tall, and the other is 111 meters tall. How many feet taller is the higher tower? (Hint: 1 meter = 3.28 feet)
Answer: 114.8
Step-by-step explanation: first multiply 76 times 3.28 (249.28) then multiply 11 by 3.28 (364.08) and subtract to get your awnser
Marilyn spent $196 on concert tickets and Jocelyn spent $140. All the tickets cost
the same amount and each girl bought more than one ticket. You have $35. Can you
afford to buy a ticket?
Answer: yes
Step-by-step explanation:
The greatest common factor of 196 and 140 is 28. The ticket is $28 and thats less than $35, so you can afford to buy a ticket. Also 196/28 = 7 and 140/28 = 5, and thats more than one ticket. So yes, you can afford to buy a ticket.
i might be wrong.
Find k if y = 64 and x = 16
Answer:
Can you give a picture of what we are answering
Step-by-step explanation:
Jason is solving a homework problem.
Arianna buys 4 boxes of granola bars. Each box contains 12 granola bars. Arianna eats 8 bars.
Jason writes a numerical expression to represent the situation. His expression, (12- 8) 4, has a mistake.
Complete the explanation of Jason's mistake.
and then subtracted 8 from this
Jason subtracted 8 from 12 when he should have multiplied 12 x
amount.
Enter an expression to show how many granola bars are left, and then solve it.
(12 x
- 8=
8=
Answer:
There are 54 granola bars left.
Write an equation in slope-intercept form of the line that passes through (-5, 5) and (5, - 5).
An equation is
Answer:
y=-5x+5
Step-by-step explanation:
Which number equals 3 4 exponent -2
The answer for the above expression is 16/9.
What is an expression?An expression is a combination of numbers, variables, and mathematical operations, such as addition, subtraction, multiplication, division, exponentiation, and root extraction, that represents a mathematical quantity or a mathematical statement. An expression can be as simple as a single number or variable, or it can be a complex combination of several numbers, variables, and operations.
According to the given information:
The expression "\((\frac{3}{4} )^{2}\)" represents the fraction "3/4" raised to the power of "-2". In mathematical notation, this is written as "\((\frac{3}{4} )^{-2}\)".
To calculate this value, we can use the rule that a negative exponent is equivalent to taking the reciprocal of the base raised to the positive exponent. Therefore, "\((\frac{3}{4} )^{-2}\)" is equal to the reciprocal of "3/4" raised to the power of "2", or "\(\frac{1}{(\frac{3}{4} )^{2}}\)".
Evaluating this expression, we get:
\((\frac{3}{4} )^{-2}\)= \(\frac{1}{(\frac{3}{4} )^{2}}\) = \(\frac{1}{(\frac{9}{6})^{2} }\)= 16/9
So, "\((\frac{3}{4} )^{-2}\)" is equal to 16/9.
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Find the surface area of the pyramid.
A drawing of a square pyramid. The length of the base is 4.5 meters. The height of each triangular face is 6 meters.
The surface area of the pyramid is 74.25 square meters.
What is surface area?Surface area is the total area that the surface of an object occupies. It is the sum of the areas of all the faces, sides, and curved surfaces of an object. Surface area is usually measured in square units, such as square meters, square feet, or square centimeters.
What is pyramid?A pyramid is a polyhedron with a polygonal base and triangular faces that meet at a common vertex (known as the apex). Pyramids are named according to the shape of their base.
In the given question,
The area of the base is simply the area of a square, which is:
Area of base = length x width = 4.5m x 4.5m = 20.25 square meters
To find the area of each triangular face, we first need to find the length of the slant height (the height of the triangle).
We can use the Pythagorean theorem to do this:
h²= (1/2 x base)² + height²
h² = (1/2 x 4.5)² + 6²
h² = 2.25 + 36
h² = 38.25
h = √38.25
h = 6.18 meters (rounded to two decimal places)
Now that we know the slant height, we can find the area of each triangular face:
Area of one triangular face = (1/2 x base x height) = (1/2 x 4.5 x 6) = 13.5 square meters
Since there are four triangular faces on a square pyramid, we need to multiply this by 4 to find the total area of the triangular faces:
Total area of triangular faces = 4 x 13.5 = 54 square meters
Finally, we can find the surface area of the pyramid by adding the area of the base and the area of the triangular faces:
Surface area = Area of base + Total area of triangular faces
Surface area = 20.25 + 54
Surface area = 74.25 square meters
Therefore, the surface area of the pyramid is 74.25 square meters.
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Find the probability that a randomly
selected point within the square falls in the
red-shaded circle.
6
18
18
P =
The probability of landing on the red shaded circle is 6/18
Concept of probabilityProbability simply measures the chances at which an event could occur in a sample or population.
Mathematically, Probability is calculated thus:
P(X) = required outcome/ Total possible outcomesHere ,
Required = red circle = 6Entire circle = 18P(red circle ) = 6/18
Therefore, the probability is 6/18
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Mrs. Galicia sells online math and reading games. His revenue for each game (in dollars) is modeled by the given equations, where x is the number of days since the games went on sale.
Math Game: M(d)=2x^2+8x+2
Reading Game: R(d)=3x+5
Solve the system algebraically. After how many days is the revenue for each game the same? Show your work and explain your answer.
Graph this system to show the solutions. Label each axis appropriately.
Answer:
In the middle of a day
Step-by-step explanation:
1) Make it an actual equation
\(3x+5=2x^{2} +8x+2\)
2) Cancel integers
\(3x + 3 = 2x^{2} + 8x\)
3) Get rid of no exponent variables
\(0 = 2x^{2} + 5x - 3\)
4) Factor :D
\((2x - 1)(x+3)\)
5) Solve
2x - 1 = 0
x + 3 = 0
They will meet at -3 days (Which doesn't exist!!!) and 1/2 a day.
---------------------
I didn't use graphing, nor did I double check my work but I'm quite sure its correct, i'll edit this answer with a graph for brainliest tho :>
-----------------
Edit: Eh i'll add a graph cause i'm nice ;-;
Write down three integers,all less than 25,whose range is 8 and mean is 11.
let
x------> the first integer
y------> the second integer
z-----> the third integer
x < y < z < 25
we know that
Median=13
Median=(x+y+z)/3
13=(x+y+z)/3
x+y+z=39------> equation 1
range=10
The range is the difference between the largest number within the set and the smallest number in the set
so
range=z-x
z-x=10------> z=x+10-----> equation 2
to find the solution we will assume different values of x (See the attached table)
terms
x < y < z < 25
z=x+10
y=39-z-x
The solution can be
7,15,17
8,13,18
9,11,19
according to census the total number of male and female was 88,51,84,692, if number of male was 45,40,34,570what was the number of number of female population
According to census the total number of male and female was 88,51,84,692, if number of male was 45,40,34,570 the number of female population is 43,11,50,122.
To find the wide variety of girl population, we will subtract the quantity of male population from the full population.
Total population = 88,51,84,692
Number of male = 45,40,34,570
Number of female = Total population - Number of male
= 88,51,84,692 - 45,40,34,570
= 43,11,50,122
Therefore, the number of female population is 43,11,50,122.
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A quadratic equation, y = ax^2 - 6x + 10, has exactly one real root. Calculate the value of a.
Answer:
a = 0.9
Step-by-step explanation:
For the quadratic equation \(\boxed{ax^2 + bx + c = 0}\) to have exactly one real root, the value of its discriminant, \(\boxed{b^2 - 4ac}\), must be zero.
For the given equation:
\(y = ax^2 - 6x + 10\),
• a = a
• b = -6
• c = 10.
Substituting these values into the formula for discriminant, we get:
\((-6)^2 - 4(a)(10) = 0\)
⇒ \(36 - 40a = 0\)
⇒ \(36 = 40a\)
⇒ \(a = \frac{36}{40}\)
⇒ \(a = \bf 0.9\)
Therefore the value of a is 0.9 when the given quadratic has exactly one root.
The table and graph both represent the same relationship.
Answer:
your answer will be second opinion
Step-by-step explanation:
y= 2x
hope it helps you
have a wonderful day!!!
Plzzz be serious and be fast to
Answer:
i think its c
Step-by-step explanation:
Answer:
I believe it's C... I may be wrong though
Step-by-step explanation:
hav a good day :D
The sum of three consecutive integers equals 39 more than the least of the integers. Find the integers
Answer: 12, 13, 14
Explanation: This was on my test last week and this is the correct answer.
Answer:
18, 19, 20
Step-by-step explanation:
We can have the lowest number be \(x\), and the second and third numbers be \(x+1\) and \(x+2\). Now we have the equation \(x+x+1+x+2=x+39.\)
\(3x+3=x+39\\\\2x=36.\)
x=18, so the numbers are 18, 19, and 20.
Change 42 1/2 % to a fraction.
42 1/2 ( aka 85/2) as a percent is 4250%.
To convert a percentage to a fraction, we can write the percentage as a fraction with a denominator of 100 and then simplify.
42 1/2 % can be written as:
42 1/2 % = 42.5/100
To simplify this fraction, we can divide the numerator and denominator by their greatest common factor, which is 2.
42.5/100 = (42.5 ÷ 2) / (100 ÷ 2) = 21.25/50
Next, we can simplify this fraction by dividing both the numerator and denominator by their greatest common factor, which is 25.
21.25/50 = (21.25 ÷ 25) / (50 ÷ 25) = 17/40
Therefore, 42 1/2 % is equal to 17/40 as a fraction in its simplest form.
Brainliest?
Besides 40 and 1, what is one factor of 40?
Answer:
Step-by-step explanation:
40 x 1 = 40
20 x 2 = 40
10 x 4 = 40
8 x 5 = 40