Answer:
B
Step-by-step explanation:
not sure tho
Pls help me solve whole page
What are the solutions to logs (x²+8)= 1+logg(x)?
x=-2 and x=-4
x-1 and x=8
x= 1 and x = -8
O x=2 and x=4
Step-by-step explanation:
Log(x²+8)=log 10+ log x
Log(x²+8)=log(10×x)
x²+8=10x
x² - 10x + 8=0
x is approximately to - 1 and - 8✅
The solutions to the given equation are x = -1 and x = 8.
Option A is the correct answer.
What is a solution?Solutions are the values of an equation where the values are substituted in the variables of the equation and make the equality in the equation true.
We also find the solution in a system of equations using the substitution or elimination method.
Example:
2x + 4 = 8
The solution is x = 2.
We have,
Using logarithmic properties, we can simplify the given equation:
logs(x² + 8) = 1 + log g(x)
logs(x² + 8) - log g(x) = 1
log[(x² + 8)/g(x)] = 1
(x² + 8)/g(x) = 10
x² + 8 = 10g(x)
Now we can solve for x by substituting the given answer options and solving for g(x):
For x = -2 and x = -4:
x = -2:
(-2)² + 8 = 12, which is not equal to 10 g(x) for any value of g(x).
So x = -2 is not a solution.
x = -4:
(-4)² + 8 = 24, which is also not equal to 10g(x) for any value of g(x).
So x = -4 is not a solution.
For x = -1 and x = 8:
x = -1:
(-1)² + 8 = 9, which is equal to 10g(x) when g(x) = 0.9.
So x = -1 is a solution.
x = 8:
(8)² + 8 = 72, which is equal to 10g(x) when g(x) = 7.2.
So x = 8 is a solution.
For x = 1 and x = -8:
x = 1:
(1)² + 8 = 9, which is equal to 10g(x) when g(x) = 0.9.
So x = 1 is a solution.
x = -8:
(-8)² + 8 = 56, which is not equal to 10g(x) for any value of g(x).
So x = -8 is not a solution.
Therefore,
The solutions to the given equation are x = -1 and x = 8.
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please help me with this
Answer:
F
Step-by-step explanation:
64x³ = -1
x³ = -1/64
x = ∛-1/∛64
x = -1/4
Answer:
x = - \(\frac{1}{4}\)
Step-by-step explanation:
64x³+1=0
Add 1 to both sides:
64x³=-1
Divide both sides by 64:
x³=-\(\frac{1}{64}\)
Find cubed root of both sides:
x=-\(\sqrt[3]{\frac{1}{64}}\)
Note that \(\sqrt[n]{\frac{a}{b}}=\frac{\sqrt[n]{a}}{\sqrt[n]{b}}\) :
x=-\(\frac{\sqrt[3]{1} }{\sqrt[3]{64} }\)
Evaluate:
x = - \(\frac{1}{4}\)
A skier skis along a circular ski trail that has a radius of 1.7 km. The skier starts at the East side of the ski trail and travels in the CCW direction. Let θ represent the radian measure of the angle the skier has swept out.
a) Write an expression (in terms of θ) to represent the skier's distance to the East of the center of the ski trail (in km).
b) Write an expression (in terms of θ) to represent the skier's distance to the North of the center of the ski trail (in km).
The skier's distance to the east of the center of the ski trail is
x = 1.25cosθ
The skier's distance to the north of the center of the ski trail is
y = 1.25sinθ
When radius 'r' and the angle θ are given, the coordinates (x,y) as shown
x = east direction
y = north direction
In this case we get,
x = r cosθ
y = r sinθ
Given r = 1.25 km
We get,
x = 1.25 cosθ in east direction
y = 1.25 sinθ in north direction
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Does standard deviation means independent events
Standard deviation does not mean independent events.
Does standard deviation means independent events?No, the standard deviation is a measure of the spread or variability of a set of data. It measures how much the individual data points in a dataset deviate from the mean or average of the dataset.
Independence, on the other hand, refers to the relationship between two or more events, where the occurrence of one event does not affect the probability of the other event occurring.
Standard deviation is not directly related to the concept of independence. However, when calculating the standard deviation of a dataset, it assumes that each data point is independent and identically distributed. This means that the value of one data point does not affect the value of another data point, and that each data point is drawn from the same underlying distribution.
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At Silver Gym, membership is $35 per month, and personal training sessions are $30 each. At Fit Factor,
membership is $85 per month, and personal training sessions are $20 each. In one month, how many
personal training sessions would Sarah have to buy to make the total cost at the two gyms equal?
Sarah would have to buy
equal.
personal training sessions to make the total cost at the two gyms
Answer:
5 sessions each
Step-by-step explanation:
Let the personal training sessions be x.
Then at Silver Gym Sarah would spend:
35 + 30xAnd at Fit Factor she would spend:
85 + 20xSince total costs are same, the amounts will be equal:
35+30x = 85 + 20x30x - 20x = 85 - 3510 x = 50x= 50/10x= 5So Sarah would buy 5 training sessions for each of the gyms.
And she would spend $185 at each.
Solve by Completing the Square
Matalea created a rectangle where the length was eight more than the width. She then determined that the area of a rectangle could be found by using the function A(x)= x2+8x where x is the width of the rectangle. If the area of the rectangle is 33 in^2, what is the width of the rectangle?
The width of the rectangle is calculated as: 11 inches
How to use completing the square?The formula for area of a rectangle is:
A = l*w.
Since the area is 33 in², then;
33 = x(x + 8) would be the equation to solve for x.
Now, you need to put the equation in standard form.
x² + 8x - 33 = 0.
To complete the square you need to add 33 to both sides.
Now you have x² + 8x = 33
Take the coefficient for the x term (8) and divide by 2. Now square it. That would be 4², so 16.
Now you have x² + 8x + 16 = 49
(x + 4)² = 49
Take the square root of both sides and you have;
x + 4 = 7.
Therefore, x = 3 (the short side) and 11 is the long side.
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Find Term 20 for the sequence a= 4 6 8 10......
4,6,8,10 are in A.P
a=4d=2\(\\ \rm\Rrightarrow a_n=a+(n-1)d\)
\(\\ \rm\Rrightarrow a_20=4+(20-1)2\)
\(\\ \rm\Rrightarrow a_20=4+19(2)\)
\(\\ \rm\Rrightarrow a_20=4+38\)
\(\\ \rm\Rrightarrow a_20=42\)
Someone please help, thank you
Step-by-step explanation:
everything can be found in the picture
Answers:
(a) \(n = 2(r+m)\)
(b) \(n = \frac{h^2}{9}\)
===========================================
Work Shown:
Part (a)
\(\frac{n}{2} - m = r\\\\\frac{n}{2} = r+m\\\\n = 2(r+m)\)
In the second step, I added m to both sides. Afterward, I multiplied both sides by 2 to fully isolate n.
------------------------
Part (b)
\(3\sqrt{n} = h\\\\\sqrt{n} = \frac{h}{3}\\\\n = \left(\frac{h}{3}\right)^2\\\\n = \frac{h^2}{3^2}\\\\n = \frac{h^2}{9}\\\\\)
First I divided both sides by 3. After that, I squared both sides. The (h/3) squares to (h^2)/9.
QUICK WHATS THE ANSWER!!!!
Answer:
It’s triangular prism
Step-by-step explanation:
what is the value of the expression shown below
2 3/5 - 1 3/5
^ ^
TWO THREE-FIFTHS MINUS ONE THREE-FIFTHS
THE NUMBERS ARE MIXED FRACTIONS
Answer:
1
Step-by-step explanation:
1. One way to do this is converting both into improper fractions. To do this, multiply the whole number by the denominator and add that to the numerator.
2 3/5 --> 2*5 is 10 --> 10+3 is 13. --> 13/5
2. This leaves us with 13/5 - 8/5
3. Subtract the numerators
13/5 - 8/5 = 5/5
4. Simplify. If the numerator is the same number as the denominator, it's a whole number.
5/5 = 1
Fill in the missing values below one at a time to find the quotient when x^3 - x^2 - 3x + 2 is divided by x - 2.
Therefore, the quotient when x³ - x² - 3x + 2 is divided by x - 2 is x² - 2x - 5 with a remainder of -3.
To find the quotient when x³ - x² - 3x + 2 is divided by x - 2, we will use the long division method. Here is the solution:
Step 1: The first term of the quotient is x². Multiply x² by x - 2 to get x³ - 2x². Subtract this product from x³ - x² to get: x² - 3x² = -2x²
Step 2: Bring down the next term of the dividend, which is -3x. The new dividend is -2x² - 3x.
Step 3: The second term of the quotient is -2x. Multiply -2x by x - 2 to get -2x² + 4x. Subtract this product from -2x² - 3x to get -5x.
Step 4: Bring down the last term of the dividend, which is +2. The new dividend is -5x + 2. Step 5: The third term of the quotient is -5. Multiply -5 by x - 2 to get -5x + 10. Subtract this product from -5x + 2 to get -3.
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There were 16 skittles in a bag there were 3 yellow, 4 red, 2 purple, 6 orange, and 1 green. What is the probability of pulling a red skittle (simplify your answer). The probability of a red is /
Answer:
1 out of 8, or 12.5 percent.
Step-by-step explanation:
There were 2 red skittles out of 16 total skittles, and then we divide the numbers by 2, then we get 1 out of 8. Converting it into a percentage, there is a 12.5% chance of pulling out a red skittle.
Jacob needs 48 ounces of tomatoes for the spaghetti sauce. He is choosing between two brands of tomatoes. Find the unit rate for each brand. Round to the nearest cent (hundredth).
Brand A costs
per ounce.
Brand B costs
per ounce.
Answer:
Brand A Costs 37.38 per ounce and Brand B cost 31.19 per ounce hope this helped ^-^
How many solutions does the following equation have? 1/4(8x - 4) = 2x + 1
Answer: There are no solutions.
Step-by-step explanation:
1/4(8x - 4) = 2x + 1
2x - 1 = 2x + 1
-1 = 1
The two figures are congruent. Find the measure of the requested side or angle
angle A = 63.7°, B= 26.3°, D= 49° , then angle C = 221
What are congruent shapes?Two shapes that are the same size and the same shape are congruent.Congruent shapes are shapes that are exactly the same.
The corresponding sides are the same and the corresponding angles are the same.
This means the corresponding angles of the two shapes are equal.
With this, angle A = 63.7°, angle B= 26.3° , angle D =49°
The sum of angles in a quadrilateral is 360°
therefore angle C = 360-(63.7+49+26.3)
C = 360-139
C = 221°
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Analyze the graph of the function f(x) to complete the statement. On a coordinate plane, a curved line, labeled f of x, with a minimum value of (0, negative 3) and a maximum value of (negative 2.4, 17), crosses the x-axis at (negative 3, 0), (negative 1.1, 0), and (0.9, 0), and crosses the y-axis at (0, negative 3). f(x)<0 over and what other interval?
The interval where function f(x) is negative and greater than 0 is (-∞, -3) U (-1.1, 0)
We have,
The function f(x) crosses the x-axis at (-3, 0), (-1.1, 0), and (0.9, 0), it means that f(x) is negative for x values less than -3, between -1.1 and 0.9, and greater than 0.
Therefore, we can say that:
f(x) < 0 for x < -3 and -1.1 < x < 0.9
And,
The function f(x) has a minimum value of (0, -3) and a maximum value of (-2.4, 17).
This means that f(x) is positive for x values greater than -2.4. Therefore, we can say that:
f(x) > 0 for x > -2.4
Now,
Combining these inequalities, we can say that f(x) is negative over the intervals (-∞, -3) and (-1.1, 0.9), and positive over the interval (-2.4, ∞).
So,
The interval where f(x) is negative and greater than 0 is:
(-∞, -3) U (-1.1, 0)
Thus,
The interval where f(x) is negative and greater than 0 is (-∞, -3) U (-1.1, 0)
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If a point Cis inside ZAVB, then m/AVC + mACVB =
The sum of the measure of angles ∠AVC + ∠CVB is C. ∠AVB.
What is an angle bisector?An angle bisector is a line segment that divides an angle into two equal parts.
The angle addition postulate states, if a line segment is in between an angle sum of two smaller angles created by the line segment, is equal to the measure of the larger angle.
The measure of angle AVB is 62°.
The measure of the angle AVC is 39° and the measure of the
angle CVB is 23°.
As the point, C is inside ∠AVB, ∠AVC + ∠CVB = ∠AVB.
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You own Company X. When you started the company, you initially invested $12,000.
You also borrowed $12,000 through a five-year (long-term) loan, of which you have
paid back $2,018. You have retained $1,291 in earnings to be reinvested in the
company, and you decided to put $1,000 of it aside for a long-term investment. The
company owns land and a building worth $8,878 and equipment worth $4,230. As of
today, the company has $8,250 in cash, $1,225 in inventory, and is due to receive
accounts worth $675. However, the company owes its suppliers $485 and has a
$500 loan to pay off in the next six months.
You invested $12,000 in the company when you originally started it. Additionally, you borrowed $12,000 for a five-year (long-term) loan and paid back $2,018 of it.
What does "company" mean?Businesses, a noun in plural. a group of people who are connected or who have joined together. a guest or guests: We're having people over for dinner. a collection of individuals together for social purposes. association, camaraderie, and fellowship She is a lot of joy to be around.
The Old French word "compagnie," which was first used in the Salic code and meaning "one who eats bread with you," is where the English word "company" originates. To describe a "society, friendship, closeness, or body of troops," it was first used in 1150.
You invested $12,000 in the company when you originally started it. Additionally, you borrowed $12,000 for a five-year (long-term) loan and paid back $2,018 of it.
Total Amount to be when start the company is $12000 + $12000
= $24000
Out of which company owns land and a building worth $8,878 and equipment worth $4,230 and have retained $1,291 in earnings to be reinvested in the company, and you decided to put $1,000 of it aside for a long-term investment.
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please help OwO
cause I'm confused
Answer:
x = 1
Step-by-step explanation:
Let Rocco's number of lawns = x
Carly mowed 2 more lawns per week than did Rocco.
That is represented as x + 2
She did this for 6 weeks 6 ( x + 2)
And the result after 6 weeks was a total of 18 lawns
6(x + 2) = 18 Remove the brackets
6x + 12 = 18 Subtract 12 from both sides
6x = 18 - 12
6x = 6 Divide by 6
x = 6/6
x = 1
Therefore Rocco mowed 1 lawn a week.
Answer:
what I said was wrong, mods please delete sorry
Step-by-step explanation:
Identify the type of angle this is
Answer:
parell line
Step-by-step explanation:
Answer:
hello please follow me
Step-by-step explanation:
Answer is Linear Pair
In a class of 80 Students, 30 offered mathematics, 20 offered Accountancy and 40 offered Economics. Those who offered both mathematics and accountancy are more than those who offered both Accountancy and Economics by 2. No student offered all the subjects and none offered both mathematics and Economics. Find the number of students who offered Accountancy only?
The number of students who offered Accountancy only is 10.
Let's represent the number of students who offered Mathematics as M, the number of students who offered Accountancy as A, and the number of students who offered Economics as E.
From the given information:
M = 30 (Number of students who offered Mathematics)
A = 20 (Number of students who offered Accountancy)
E = 40 (Number of students who offered Economics)
We are also given the following conditions:
M ∩ A > A ∩ E by 2
M ∩ E = 0
We know that the total number of students is 80, so:
M + A + E = 80
Now, let's solve for the number of students who offered Accountancy only.
We can start by substituting the given values into the equation:
30 + 20 + 40 = 80
Now, we need to find the value of A ∩ E (Number of students who offered both Accountancy and Economics).
Since none offered both Mathematics and Economics, we can subtract M from A:
A - M = A ∩ E
20 - 30 = A ∩ E
-10 = A ∩ E
Since A ∩ E cannot be a negative number, we know that A ∩ E = 0.
Now, let's use the first condition: M ∩ A > A ∩ E by 2.
Substituting the values, we have:
M ∩ A - A ∩ E = 2
M ∩ A - 0 = 2
M ∩ A = 2
Now, we can substitute the values of M ∩ A and M into the equation M + A + E = 80:
30 + A + 40 = 80
A + 70 = 80
A = 10
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Solve 2x^2 - 3x + 6 = 0.
Answer:
\(\displaystyle x=\frac{3 \pm i\sqrt{39}}{4}\)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Standard Form: ax² + bx + c = 0FactoringQuadratic Formula: \(\displaystyle x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}\)Algebra II
Imaginary Numbers: i = √-1Step-by-step explanation:
Step 1: Define
2x² - 3x + 6 = 0
Step 2: Solve for x
[Quadratic] Identify Variables [Standard Form]: a = 2, b = -3, c = 6Substitute in variables [Quadratic Formula]: \(\displaystyle x=\frac{3 \pm \sqrt{(-3)^2-4(2)(6)}}{2(2)}\)[√Radical] Evaluate exponents: \(\displaystyle x=\frac{3 \pm \sqrt{9-4(2)(6)}}{2(2)}\)[√Radical] Multiply: \(\displaystyle x=\frac{3 \pm \sqrt{9-48}}{2(2)}\)[√Radical] Subtract: \(\displaystyle x=\frac{3 \pm \sqrt{-39}}{2(2)}\)Multiply: \(\displaystyle x=\frac{3 \pm \sqrt{-39}}{4}\)Factor: \(\displaystyle x=\frac{3 \pm \sqrt{-1}\sqrt{39}}{4}\)Simplify: \(\displaystyle x=\frac{3 \pm i\sqrt{39}}{4}\)why are inverse realashinships between operations used to solve twop step inqualites
Inverse relationships between operations are used to solve two-step inequalities because they allow us to isolate the variable on one side of the inequality.
A two-step inequality involves two operations that need to be undone in reverse order to solve for the variable. Inverse relationships between operations are used to "undo" these operations, leading to an isolated variable.
For example, consider the inequality 2x + 5 > 11. The first operation being performed on x is multiplication by 2, and the second operation is adding 5. To solve for x, we need to undo these operations in reverse order.
The inverse relationship of multiplication by 2 is division by 2, and the inverse relationship of adding 5 is subtracting 5. Therefore, we can solve the inequality as follows:
2x + 5 > 11
2x > 6 (subtract 5 from both sides)
x > 3 (divide both sides by 2)
Here, we first subtracted 5 from both sides to undo the addition of 5, and then divided both sides by 2 to undo the multiplication by 2.
Inverse relationships between operations are used in two-step inequalities because they help to simplify the equation by undoing the operations one by one, leading to an isolated variable.
By using inverse relationships between operations, we can efficiently and systematically solve two-step inequalities and isolate the variable to find the solution set.
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Julie wants to show that a quadrilateral with vertices J(2, 3), K(2,7), L(-2,7), M(-2,3) is a square. Using the distance formula, what should she find the length of each side to be?
Answer: 4
Step-by-step explanation:
The score below represents Akilahs science exam score 20 90 25 100 85 30 what is the MAD of her test
Answer:
The mean absolute deviation (MAD) of the dataset is 33.333.
Step-by-step explanation:
The mean absolute deviation (MAD) of a dataset is the average distance between each data point and the mean. It gives us an idea about the variability in a dataset.
These are the steps to calculate the mean absolute deviation.
Step 1: Calculate the mean.
\(Mean = \frac{20+90+25+100+85+30}{6} =\frac{175}{3}\approx58.333\)
Step 2: Calculate how far away each data point is from the mean using positive distances. These are called absolute deviations.
\(|20-\frac{175}{3} |=\frac{115}{3}\\\\|90-\frac{175}{3} |=\frac{95}{3}\\\\|25-\frac{175}{3} |=\frac{100}{3}\\\\|100-\frac{175}{3} |=\frac{125}{3}\\\\|85-\frac{175}{3} |=\frac{80}{3}\\\\|30-\frac{175}{3} |=\frac{85}{3}\)
Step 3: Add those deviations together.
\(\frac{115}{3}+\frac{95}{3}+\frac{100}{3}+\frac{125}{3}+\frac{80}{3}+\frac{85}{3}=\frac{600}{3}=200\)
Step 4: Divide the sum by the number of data points.
\(MAD=\frac{200}{6} =33.333\)
In January 2019, United Airlines (UAL) had a market capitalization of $22.9 billion, debt of $13.4 billion, and cash of $4.0 billion. United Airlines had revenues of $41.3 billion. Southwest Airlines (LUV) had a market capitalization of $27.5 billion, debt of $3.4 billion, cash of $3.7 billion, and revenues of $22.0 billion. a. Compare the market capitalization-to-revenue ratio (also called the price-to-sales ratio) for United Airlines and Southwest Airlines. b. Compare the enterprise value-to-revenue ratio for United Airlines and Southwest Airlines. c. Which of these comparisons is more meaningful? Explain.
Answer:
sorry dont know Hope u understood
What’s the answer for this one please show work!
Answer:
∠ MON = 51°
Step-by-step explanation:
∠ LON is composed of the 2 angles LOM and MON , that is
∠ LOM + ∠ MON = ∠ LON
42° + ∠ MON = 93° ( subtract 42° from both sides )
∠ MON = 51°
Answer:
<MON= 51°
Step-by-step explanation:
Look at the diagram and locate LON. You can see that LON is the angle of the complete line. Now LOM is given which is the angle of a part of the lines. So that means that to find MON we can minus LON with LOM.
<MON= <LON - <LOM
= 93-42
<MON= 51°
Feel free to ask any doubt you have!
is (6,-7) a solution to y+3=1/2(x+2)
At Sunshine Bookstore, the total cost of a carton of 16 dictionaries is $468. At Barker’s Books, the same dictionaries cost $28.75 each. How much money will you save on each dictionary if you buy them at Barker’s Books?
Answer:$41.24
Step-by-step explanation:
when you do mathmatics with $468 and $28.75 you get $41.24! have a good day! <3