how do i determine if the equation is always, never, or sometimes true

Answers

Answer 1
If there is an exception or counterexample whatsoever, then it is sometimes if there is no counterexample, then it is always true.
Answer 2
always true:holds true no matter what and you cannot think of a counterexample or a theorem proves it like anything times 2 is even
sometimes true; holds true under some circumstances like  anything times 3 is even
Never truer theorem disproves it or there are many counterexamples: negative times negative is negative

Related Questions

Which of the following would offer proof that a relation is a function?

the graphed line overlaps itself
every output has only one input
vertical line test
the graphed line is straight

Answers

That would be the vertical line test

Answer:

C just did this

Step-by-step explanation:

Rapid rental car company charges a $40 rental fee $15 for gas, and $0.25 per mile driven. For the same car, Capital Cars charges $5 for a rental and gas and $0.35 per mile. Find the number of miles for which the companies' charges will be the same. How much will the rental be

Answers

Sorry for taking so long.  Try typing in the whole question on google you will get lots of websites, it wasn't letting me post any here.

All the websites have $45 for the second sentence, but idk if they could help.

And when you figure it out let me know because it was really bothering me. lol

Write 9 as a power of the base 3

Answers

9 = 3^2
Since 3 squared equals 9, that is how 9 as a power of the base 3 should be written. 

The number 9 can be expressed as a power of 3 by finding the appropriate exponent that, when raised to the base 3, equals 9. This exponent is 2, making 9 written as a power of 3 to be 3².

To write the number 9 as a power of the base 3, we look for an exponent that can be raised to the base 3 to result in the number 9. This is achieved by recognizing that 3 squared (3²) equals 9. So, 9 expressed as a power of 3 is 3².

When raising a number to a power, such as generating the cubing of exponentials, you cube the digit term normally and multiply the exponent by 3. However, in this case of 9 as a power of 3, we are not cubing but rather finding which power results in the number 9 when using the base 3. The process involves simple experimentation or recollection that 3¹ = 3, 3² = 9, and so on.

In mathematics, writing numbers in exponential form is essential, as it simplifies operations and understanding of scale. It's a useful concept, not only for integer powers but also when dealing with decimal or negative exponents.

What is 3/16 plus 1/4?

Answers

The answer to this is 7/16.

To form 3 adjacent squares (as in the figure), 10 toothpicks are required. How many toothpicks are required to form 100 adjacent squares? ...?

Answers

Final answer:

To find out the number of toothpicks required to form 100 adjacent squares, one can use the formula 4 + 3(n - 1), resulting in 301 toothpicks.

Explanation:

To determine how many toothpicks are required to form 100 adjacent squares, we must first understand the pattern established by the initial set of squares. When forming three adjacent squares, 10 toothpicks are used. This is because the first square requires 4 toothpicks, and each subsequent square shares a side with the previous square, thus requiring only 3 additional toothpicks for each new square.

For n adjacent squares, the number of toothpicks required can be calculated with the formula: 4 + 3(n - 1), since the first square uses 4 toothpicks and each additional square uses 3 more toothpicks.

Now, let's apply this to 100 adjacent squares:

Start with the formula: 4 + 3(n - 1).Substitute n with 100 to find the total toothpicks for 100 squares: 4 + 3(100 - 1).Simplify the equation: 4 + 3(99) = 4 + 297.Add the values together: 4 + 297 = 301 toothpicks.

Therefore, 301 toothpicks are required to form 100 adjacent squares.

The relationship is that for each square, we need 4 toothpicks (1 new side for each square). So, for 100 adjacent squares, we require 400 toothpicks.

Let's analyze the pattern to determine the relationship between the number of squares and the toothpicks required. Consider the formation of 3 adjacent squares:

For the first square, we need 4 sides (4 toothpicks).

For the second square, we have 3 shared sides with the first square and 1 new side (3 + 1 = 4 toothpicks).

For the third square, we have 3 shared sides with the second square and 1 new side (3 + 1 = 4 toothpicks).

So, for 3 adjacent squares, we need a total of 12 toothpicks (4 + 4 + 4).

Now, let's generalize this pattern. For each additional square beyond the third, we are adding 4 toothpicks (1 new side for each square). Therefore, the toothpicks required to form n adjacent squares can be expressed as 4n.

For 100 adjacent squares:

Toothpicks=4×100=400

Hence, 400 toothpicks are required to form 100 adjacent squares.

The question probable may be:

To form 3 adjacent squares, 10 toothpicks are required. How many toothpicks are required to form 100 adjacent squares?

What are the approximate solutions of 7x^2 4x-9=0??

Answers

no solution 7x square and -3 cant equal you a positive or a negative answer

An insurance company charges a 35-year old non-smoker an annual premium of $118 for a $100,000 term life insurance policy. The premiums for 45-year olds and 55-year old no smokers are $218 and $563, respectively. Write a quadratic model for the premium p as a function of age a.

Answers

p=ma^2+ba+c, so you have 118=m35^2+35b+c 218=m45^2+45b+c 563=m55^2+55b+c so solving I get m=49/40 b=-88 c=13579/8 so its p=(49/40)a^2-88a+(13579/8)

Answer:

[tex]p=\dfrac{49}{40}a^2-88a+\dfrac{13579}{8}[/tex]

Step-by-step explanation:

Let premium p for age of a , (p,a)

# An insurance company charges a 35-year old non-smoker an annual premium of $118 for a $100,000 term life insurance policy.

(35,118)

# An insurance company charges a 45-year old non-smoker an annual premium of $218 for a $100,000 term life insurance policy.

(45,218)

# An insurance company charges a 55-year old non-smoker an annual premium of $563 for a $100,000 term life insurance policy.

(55,563)

Let quadratic model be p=Aa²+Ba+C

Substitute the points into equation

For point, (35,118)

[tex]118=35^2A+35B+C[/tex]

[tex]118=1225A+35B+C[/tex] -------------(1)

For point, (45,218)

[tex]218=45^2A+45B+C[/tex]

[tex]218=2025A+45B+C[/tex] -------------(2)

For point, (55,563)

[tex]563=55^2A+55B+C[/tex]

[tex]563=3025A+55B+C[/tex] -------------(3)

Solve system of equation and find out A, B and C using calculator.

[tex]A=\dfrac{49}{40},B=-88,C=\dfrac{13579}{8}[/tex]

Quadratic model:

[tex]p=\dfrac{49}{40}a^2-88a+\dfrac{13579}{8}[/tex]

A box of ground nutmeg weighs 1 1/3 ounce. If there are 20 teaspoons of nutmeg in the box, how much does one teaspoon of nutmeg weigh?
1/15 ounce
1/20 ounce
1/60 ounce
4/3 ounce

Answers

We can find out what the answer is by dividing the weight in ounces with the number of teaspoons.

1 1/3 = 4/3
(4/3)/20 = 4/60
4/60 = 1/15

The answer is 1/15 ounce

we know that

a) A box of ground nutmeg weighs [tex]1 1/3[/tex] ounces

b) There are [tex]20[/tex] teaspoons of nutmeg in the box

Step 1

Convert mixed number to an improper fraction

[tex]1\frac{1}{3} \ ounces= \frac{1*3+1}{3}= \frac{4}{3}\ ounces[/tex]

Step 2

By proportion

Find the weight of one teaspoon

[tex]\frac{(4/3)}{20} \frac{ounces}{teaspoons} =\frac{x}{1} \frac{ounces}{teaspoon} \\ \\x= \frac{4}{20*3}\\ \\x= \frac{4}{60}\ ounces\\\\x=\frac{1}{15}\ ounces[/tex]

therefore

the answer is the option

[tex]\frac{1}{15}\ ounces[/tex]

square root of 3400 please =]

Answers

58.31
hope this helps you
the square root of 3400 is 58.30951895... but if you round, it would be 58.

Find the range.

3 –9 7 –1 5 –4 2


2


16


8


–1

Answers

The range is the distance between the minimum data value and the maximum: [tex]\text{Maximum value}-\text{Minimum value}=\text{Range}[/tex]

[tex]\text{Given values: }3, -9, 7, -1, 5, -4, -2[/tex]
Your minimum value is -9.
Your maximum value is 7.

Therefore: [tex]\text{Range}\rightarrow\text{Maximum value}-\text{Minimum value}\rightarrow7-(-9)[/tex]
[tex]\rightarrow\text{Subtracting Negative Values}\rightarrow7+9=16[/tex]

**Subtracting a negative value [tex]-a[/tex] is like adding the product [tex](-1)(-a)[/tex], which would translate to the same thing as adding the product [tex](1)(a)[/tex], or adding [tex]a[/tex].

Answer:

the answer is 16

Write an equation with a variable on both sides of the equal sign that has infinitely many solutions. Solve the equation and explain why it has an infinite number of solutions.
I have no idea?

Answers

An equation will have infinite solutions if the variable cancels out in the solving process AND whats left holds True.

Example:
3x + 5 = 4x -(x-5)

After simplifying:
3x+5 = 3x +5

Subtract 3x from both sides
5 = 5

This is True so there are infinite solutions, meaning any possible number for "x" will still make the equation True.

1, 6, 11, 16, 21, . . .
Use inductive reasoning to predict the next term in the sequence.

A.26B.31C.36D.37 ?

Answers

The answer would be A. because you're just adding 5 each time. 

The graph shows the amount of gas remaining in the gas tank of mrs. lius car as she drives at a steady speed for 2 hours. How long can she drive before he car runs out of gas

Answers

Final answer:

To determine how long Mrs. Liu can drive before her car runs out of gas, one needs to analyze the slope of the graph that shows the rate of gasoline consumption, know the total capacity of the tank, and perform a calculation to estimate the remaining driving time assuming constant consumption.

Explanation:

The question asks to determine how long Mrs. Liu can drive her car before the gas tank is empty, based on the graph showing the amount of gas left as she drives at a steady speed for 2 hours. To answer this, we need to find the rate at which the gas is being used and then use it to estimate the time until the tank reaches empty.

To find the rate of gasoline consumption, you would typically look at the slope of the graph, which shows the decrease in gas over time. If the graph shows a linear decrease, the slope will give you the rate (e.g., gallons per hour). Suppose the graph indicates that the tank started full and decreased to half over 2 hours. In that case, the consumption rate is half the tank's capacity divided by 2 hours. If you know the total capacity of the tank, you can calculate the driving time until empty.

However, since the actual graph and numerical data are not provided here, we can only guide you through the process hypothetically. With the actual graph, you would:

Find the slope of the graph (gasoline used per hour).Determine the total capacity of the car's gas tank.Divide the remaining gasoline by the consumption rate to calculate the remaining driving time.

Remember, this calculation assumes a constant rate of consumption, which may not be accurate in real-life scenarios due to variations in driving conditions and car performances.

Coin can be tossed until a tail appears or until it has been tossed 3 times. Given that tail does not occur on the first toss, whats probability that the coin is tossed 3 times?

Answers

For the coin to be tossed three times given the first toss is not a tail, the second toss must not be a tail. Since the probability of not getting a tail is 1/2. Therefore, the probability that the coin is tossed three times is 1/2.


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

What is five and five eighths minus two and six sevenths minus five eighths?

Answers

the answer is 2 and 1/7.
5 5/8 -2 6/7 -5/8= 2 1/7

Π is the ratio of _______________ to _______________.

Answers

Π is the ratio of 22 to 7

Hope this helps!

Write an expression for calculation add 8 to the sum of 23and 10

Answers

Final answer:

The expression for adding 8 to the sum of 23 and 10 is (23 + 10) + 8. This is due to the commutative property of addition, which states that the order in which you add numbers does not change the result.

Explanation:

The question asks for an expression to calculate adding 8 to the sum of 23 and 10. The first step is to add 23 and 10 together, which equals 33. Then add 8 to that sum. You can represent this process mathematically as (23 + 10) + 8. So if you need to write an expression for adding 8 to the sum of 23 and 10, it would be (23 + 10) + 8. Remember, adding numbers together (a process called addition) is commutative, meaning you can add numbers in any order and still get the same result.

Learn more about Addition here:

https://brainly.com/question/29560851

#SPJ3

A kite has a perimeter of 108 feet. One of the longer sides measures 30 feet. What are the lengths of the other three sides?

Answers

Answer:

30 feet, 24 feet, 24 feet

Step-by-step explanation:

A kite is a quadrilateral with two pairs of congruent adjacent sides.

One of the longer sides measures 30 feet. According to the definition, the kite has two sides of length 30 feet. Let x feet be the length of another side.

The perimeter of the kite is

[tex]2\cdot 30+2\cdot x\ feet[/tex]

Since the kite has a perimeter of 108 feet, we have

[tex]2\cdot 30+2\cdot x=108\\ \\60+2x=108\\ \\2x=108-60\\ \\2x=48\\ \\x=24[/tex]

The length of two another sides is 24 feet. The kite has two sides of 30 feet and two sides of 24 feet.

Answer: Hello mate!

The kite has two equal-length long sides and two equal-length shorter sides. We also know that the perimeter is the addition of the four sides, where we have two long sides, L, and two short sides, S.

Then 2S + 2L = 108ft

S + L = 54 ft

if L = 30 feet

S + 30 ft = 54ft

S = 54ft - 30 ft = 24ft

Then the other long side also has 30ft length, and the two shorter sides have 24ft length.

What method would you choose to solve the equation 2x2 – 7 = 9? Explain why you chose this method.

Answers

Since there is a power of 2 and constants, without a variable power of 1, I would use square root method.
Move the 7 to the right and you get 2x^2 = 16
Then divide both sides by 2 and get x^2 = 8
Now take the square root of each side and get x = +-sqrt 8
sqrt 8 can be simplified since 2*4 = 8 and 4 is a perfect square.
Therefore the final answer is x = +-2sqrt2
I would use the square root property of equality. Because there is no x term, I would just add and divide to get x2 by itself. Then I would take the square root.

A high school basketball player attempted 36 free throws in a season. An analyst determined that the player successfully made 5 out of 6 of these free throws. How many free throws did the player successfully make that season in total?

Answers

He made five free throws because it said that he successfully made 5 out of 6 free shots

Answer: The number of successful throw made in that season in total is 30

Step-by-step explanation:

On average the player successfully made 5 out of 6 free throws .

Thus if number of free throws is x then number of successful throw will be [tex]\frac{5}{6}\times x[/tex] .

The basketball player attempted 36 free trials in a season .

Here x=36

Therefore No of successful throws [tex]=\frac{5}{6}\times 36=30[/tex]

Thus the number of successful throw made in that season in total is 30

Jane, Andre, and Maria pick apples.Andre pick three times as many pounds as maria. Jane picks two times as many pounds as Andre. The total weight of apples is 840 pounds. How many pounds does Andre pick?

Answers

504 pounds of apples is the answer

We know that
a=3m
j=2a
j+a+m=840

since we have values for our variables we can start putting them in:
2a+3m+m=840
2*3m+3m+m=840
6m+3m+m=840
10m=840
m=84

A=3*84
a=252
so the answer is Andre picked  pounds.

what is the length of a rectangle with width of 10in. and area 45in.^2

Answers

202.5, because 45^2 divided by 10 is 202.5

What value of x satisfied the equation -4x - 2 / 3 = -6

Answers

X=4 

-4x4=-16
-16-2=-18
-18/3=-6

for the sequencing of 3/16, 4/25, 5/36, 6/49

would it be (n+1)/(n^2)? ...?

Answers

The solution to the problem is as follows:


 increase the top by one each time. 

the bottom is incriments of square's 

ex: 4 squared is 16, 5 squared is 25. 

The next 2 numbers are: 7/64 and 8/81


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

The product of two numbers is 10 times the value of 9 and 8. which expression shows the two numbers?

Answers

10x(8+9)
or
10x17

hope this helps 

Suppose the sun casts a shadow off a 35-foot building. If the angle of elevation to the sun is 60 degrees, how long is the shadow to the nearest tenth of a foot?

Answers

60= 35_x then 1.732= 35_5 then x= 20.21 then 1.732_1.732 = 35_1.732 hope this helps :D

An automobile maker has an order for 7,500 new cars to be delivered in one week. Each car must be fitted with a new hood ornament that requires 1 hour and 15 minutes to install. Assuming the factory operates on a standard workweek shift (8 hours per day for 5 days), how many workers must be assigned this job to meet the deadline?
...?

Answers

time to fit 7500 cars = 7500 * 1.25 hoursnumber of hours available in week = 40 hoursnumber of workers needed = 7500* 1.25 / 40 = 234.4number required = 235

Answer:

235 workers

Step-by-step explanation:

Factory operates on a standard work week shift for 5 days = 8 hours per day

In one week working hours are = 8 × 5 = 40 hours.

Company has an order for 7,500 new cars to be delivered in one week.

One car requires time to be fitted with a new hood ornament that requires to install = 1 hour and 15 minutes ( 1.25 hours )

In 40 hours (one week) cars will install with one worker = [tex]\frac{40}{1.25}[/tex] = 32 cars

To fulfill the order of 7,500 cars, Company needs workers = 7,500 ÷ 32 = 234.375 ≈ 235 workers.

235 workers must be assigned this job to meet the deadline.

PLEEEEEEEEEEEEEEEAAAAAAAAAAAAAAAASE HELP ME!!!!
Which is the equation of the given line?
A. x=-3
B. x=3
C. y=-3
D. y=3

Answers

b x=3 that is the answer

how to solve sin(pi/2) without a calculator ...?

Answers

By the definition of the functions of trigonometry, the sine of  is equal to the -coordinate of the point with polar coordinates , giving . Similarly, , since it is the -coordinate of this point. Filling out the rest trigonometric functions then gives


In a sample of students, 12 out of 24 students in a class wanted a sandwich for lunch. using the data from the sample, predict how many students would want sandwiches for lunch in a school of 400

Answers

200 students would want sandwiches for lunch in a school of 400 because half of 400 is 200.

Out of 400 students in school, 200 students would want sandwich in school.

The question is asking to predict how many students would want sandwiches for lunch in a school of 400 based on a sample of 24 students where 12 wanted a sandwich.

Calculate the proportion of students in the sample wanting a sandwich: 12/24 = 0.5

Apply the proportion to the larger school: 0.5 x 400 = 200 students.

Other Questions
Identify the one ILLOGICAL comparisons among the following examplesA) we wondered if parakeets were more popular as pets than parrots.B) Tim's parrot learned to speak more quickly than Mr. Riley's.C) A parrot's father are more colorful than a parakeet.D) this pet store is said to be better than the one across town. how many meters are the in 1 kilometers ???:( A 12.8 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter with a heat capacity of 5.65 kJ/C. Using the information below, determine the final temperature of the calorimeter if the initial temperature is 25.0C. The molar mass of ethanol is 46.07 g/mol. delta H rxn = -1235C2H5OH + 3O2 -> 2CO2 +3H2O A sum of money is invested at 12% compounded quarterly. About how long will it take for the amount of money to double?Compound interest formula: V(T)=P(1+r/n)^ntt = years since initial depositn = number of times compounded per yearr = annual interest rate (as a decimal)P = initial (principal) investmentV(t) = value of investment after t yearsp.S: Please explain, I have a couple problems like this so having an example to go off of would be nice. :) x Thanks Read the excerpt from Act III, scene i of Romeo and Juliet.Tybalt: Boy, this shall not excuse the injuries40That thou hast done me; therefore turn and drawRomeo: I do protest I never injur'd thee,But love thee better than thou canst devise,Till thou shalt know the reason of my love:And so, good Capulet, which name I tender45As dearly as my own, be satisfied.a.Why is this an example of dramatic irony?because Tybalt is usually a peace-loving characterb.because Romeo does not really feel kindness toward Tybaltc.because Tybalt is unaware that Romeo has married a Capuletd.because the audience is relieved to know that a dual will not occur "Compounding frequency" refers to: Which distribution has the greatest spread? MeanStandard DeviationDistribution 1220.2Distribution 2210.8Distribution 3191.2Distribution 4203.2 distributive property Chloric acid, HClO3, contains what percent hydrogen by mass? An equation for this problem- The cable company charges a monthly fee of $45. Each movie rental is $1.99. You owe $68.88/ How many movies did you rent? Two pounds of dried cranberries cost $5.04, 3 pounds of dried cranberries cost $7.56, and 7 pounds of dried cranberries cost $17.64. Write an equation that gives the cost y of x pounds of dried cranberries? Please explain how you got your answer! The surface of water can act like a sort of skin due to a property of liquids calleda.viscosity.b.surface tension.c.condensation.d.evaporation. Describe a real or made up but realistic example of a situation in which someone might become aggressive or angry. Why would the situation be likely to cause aggression? How likely is it that aggression might occur? Give at least one suggestion of a method someone could use to calm down when they are angry. (3-6 sentences. 2.0 points) How many calories do you burn if you jog at 6 mph for 2 miles? I had to write this in the past simple, past continuous tense and the simple present, simple continuous is this right??? A unit of measure used in surveying is the link; 1 link is about 8 inches. about how many links are there in 9 feet. What decisions did Washington and the first congress have to make about the new government? What is a vector in Science? Which describes a disruption in the water cycle that could affect photosynthesis? Heat causes an excess of transpiration. The perimeter of a rectangle is 126 ft. The ratio of its length to its width is 5 : 4. What are the dimensions of the rectangle?