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Related Questions
Find a counterexample. If two lines are parallel, then they do not intersect. A. If two lines do not intersect, they could be skew. B. If two lines are parallel, they may intersect twice. C. If two lines are parallel, they intersect once. D. The statement is true. There is no counterexample.
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Answer:
The answer would be D.
Step-by-step explanation:
The statement is true. There is no counterexample. Parallel lines never intersect because they are parallel to each other. So, it is impossible for parallel lines to intersect. Hope that answers your question.
A counterexample is an example that is against or opposite the theory. They disapprove of the generalization. In math's counterexample is used to slightly abuse and refers to the example which shows the need to fully hypothesize a theorem.
Such as all prime numbers are odd numbers as number 2 is a prime number but is an even number hence contradictory. As parallel lines are always at the same distance apart and never intersect.Hence the correct option is B. If two lines are parallel, they may intersect twice.
Learn more about the find a counterexample.
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which expression is the same as 2(n+7)
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distribute the 2 to both n and 7
They are being multiplied after distribution, so A is your best answer
hope this helps
Please help with this one
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Since I don't want to give the answers, (Some of them I don't understand myself), follow this process for all of the others. For number 2, convert the first exponent equation, and then the second, and multiply both. For number 3, do the same, and then find the average of the product.
Hope this helps, sorry I couldn't be of more help than this.
Please figure this out and show your work
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(7-b)+(3b+2)
Steps:
Simplify
7-b+3b+2
= 7+-b+3b+2
Combine like terms
=7+-b+3b+2
= (-b+3b)+(7+2)
= (-b+3b) + (7+2)
2b+9
Hope I did it right ^.^
Timothy recorded the monthly change in his savings account balance, in dollars, for 8 months. Month January February March April May June July August Balance Change (dollars) −30 −15 55 40 −20 −45 −10 65 What is the average monthly change in Timothy's savings account balance? Enter your answer in the box.
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The number of months is 8. So dividing it by 8, we get
40/8 = 5
So the average monthly change in Timothy's savings account balance is $5.
Answer:
5
Step-by-step explanation:
took the test
Show me one way to count from $82 to $512
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This scenario is useful because it can help you count 82 from 512 by breaking up the number. Doing so prevents you from over thinking the problem, etc.
There were 15 apples in a bowls.dan used some apples to make a pie. Now there are 7apple in the bowl. How many Apple did dan use?
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ana hikes at a constant speed.She travels 6 miles in 2 hours. Find her speed in miles per hour.Use it to write an equation for the distance ,d, that ana travels in h hours.
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d/t=s
Answer:
6mi=2hours
3mi=1hour
so she can go 3mph
Brennan took a total of 16 pages of notes during 8 hours of class. After attending 10 hours of class, how many total pages of notes will Brennan have in his notebook? Assume the relationship is directly proportional.
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16÷8 = 2.
So Brennan writes 2 pages in 1 hour.
Hence, in 10 hours he writes;
2 × 10 = 20.
∴ in ten hours Brennan writes 20 pages.
Find the orthocenter of ABC
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Answer:
(7,3)
Step-by-step explanation:
(c) Mrs. Dewalt looked at another hotel. She waited a week before she decided to book nights at that hotel, and now the prices have increased. The original price was $1195. The price for the same room and same number of nights is now $2075. What is the percent increase? Round to the nearest whole percent. Explain and Show your work.
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Hope This Helps!
Hope it helped!
What are the length and width of a rectangle if the length exceeds the width by 75 inches and the perimeter is 158 inches
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or width of 77 and length of 2
or width of 78 and length of 1
they all have a perminiter of 158 and all widths exceed 75
Which word completely describes the rhombus?
A.equilateral
B.equiangular
C.regular
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Identify the corresponding word problem given the equation: x + 5 = 15 A) Billy is ten years older than his sister, Jenny. If Billy is 15 years old, how old is Jenny? B) Billy is five years older than his sister, Jenny. If Jenny is 15 years old, how old is Jenny? C) Billy is five years older than his sister, Jenny. If Billy is 15 years old, how old is Jenny? D) Billy is fifteen years older than his sister, Jenny. If Billy is 20 years old, how old is Jenny?
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Billy is 5 years older so if Jenny is x years old then x + 5 = 15.
Answer:
C) Billy is five years older than his sister, Jenny. If Billy is 15 years old, how old is Jenny?
Step-by-step explanation:
The sun produces 3.8x10^27 joules of energy per second. How much energy is produced in a year? (Note: a year is approximately 31,000,000 seconds.) Put it in scientific form.
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The total amount of energy produced by the sun in a year will be 11.78 × 10³⁴ joules.
What is the Scientific Notation?Scientific Notation is a way of writing down in the easy form of very large or very small numbers.
The total amount of energy produced by the sun in a year can be calculated by multiplying the sun's energy production per second by the number of seconds in a year.
3.8 × 10²⁷ joules/second × 31,000,000 seconds/year
To express this in scientific notation, we can rewrite the number using powers of 10.
3.8 × 10²⁷ × 3.1 × 10⁷
11.78 × 10³⁴ joules
In this expression, the coefficient (11.78 ) is the number of units of energy produced, and the exponent (34) tells us the magnitude of the number. The exponent is based on the base of 10, so the number is 10 to the power of 34 or 1 followed by 34 zeros. This is a very large number and helps to give us a sense of the scale of energy production by the sun.
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What is the factored of the expressions 3×2+8×-16
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So 3*2=6 and 8*-16 is -128, then you add them both.
So 6+(-128) is equals to -122. YOU'RE WELCOME :D
Which would most likely be graphed using a continuous graph? Check all that apply.
A. total cost, c, of buying b cans of beans
B. total cost, c, of buying g pounds of broccoli
C. speed of a car, s, as it accelerates over time, t
D. number of stamps, s, needed to mail p postcards
E. total distance, d, that has been driven over time, t
F. decrease in outside temperature, F, one evening over time, t
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The example that would most likely be graphed using a continuous graph is B, C, E, and F.
What is Discrete and Continuous?Discrete refers to something that cannot be divided into fractions or decimals. People are an example; you cannot have half a person. We commonly say that distinct items can be numbered.
Continuous is anything that can and must be divided into fractions and decimals. We can measure continuous circumstances, which are called to be measured. Height is an illustration of this.
Now in the given list of examples, the data that is continuous will have a continuous graph. Therefore, the data can be sorted as,
A. total cost, c, of buying b cans of beans
The given example is discrete because you can not buy a half can.
B. Total cost, c, of buying g pounds of broccoli
The given data is continuous because pounds of broccoli can be in decimal form.
C. Speed of a car, s, as it accelerates over time, t
The given data is continuous because the time period can be in decimal form.
D.The number of stamps, s, needed to mail p postcards.
The given example is discrete because you can mail a half postcard.
E. total distance, d, that has been driven over time, t.
The given data is continuous because the time period can be in decimal form.
F. decrease in outside temperature, F, one evening over time, t.
The given data is continuous because the temperature can be in decimal form.
Hence, the example that would most likely be graphed using a continuous graph is B, C, E, and F.
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A sweater is marked down $25 to $19 what is the percent of change
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Cross multiply:
1,900
Divide 1,900 by 25
Equals 76
Subtract 76 from 100
Answer: 24% change
I hope this helps!
To solve the problem we must know about Percentage.
PercentageA percentage is a way to describe a part of a whole. such as the fraction [tex]\bold{\dfrac{1}{4}}[/tex] can be described as 0.25 which is equal to 25%.
To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.
Given to us
A sweater is marked down $25 to $19AssumptionLet the x% be the remaining amount.
Remaining Amountx% of $25 = $19
[tex]\dfrac{x}{100} \times \$25 = \$19\\\\\dfrac{x}{100} \times 25 = 19\\\\\dfrac{x}{4} = 19\\\\x = 19\times 4\\x = 76[/tex]
Thus, $19 is 76% of $25.
Percent of changethe percent of change = Orignal percentage - final percentage
= 100% - 76%
= 24%
Hence, the percentage change is 24%.
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Product a is an 8 oz bottle of cough medication that sells for a $1.36 product B is a 16oz bottle of cough medication that costs $3.20 which product has the lower unit price
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3.20 ÷ 16 = 0.2
Product B has a lower unit price (dollar per ounce)
Jungkook walks 3 1/2 miles in 1 1/4 hours, what is the unit rate? I also want to know how do you find the unit rate?
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Unit rates are basically changes expressed as a quantity of one. For example, if we have something like 100 feet per second or 2 meters per hour, those are unit rates. In this case, we have a multiple-unit rate - 3 1/2 miles in 1 1/4 hours. First off, we need to simplify both fractions to an improper fraction, giving us 7/2 miles and 5/4 hours. Now, we need to divide 7/2 by 5/4.
7/2 ÷ 5/4
Find the reciprocal of 5/4:
7/2 × 4/5
Multiply:
28/10 → 2.8
Therefore, Jungkook walks 2.8 miles in one hour, or 2.8 mi/hour. Hope this helped!
2.8 miles an hour
but legit the name ksksksksks-
Three different hoses, each with its own pump, can be used to fill a swimming pool. If hose A is used by itself, the pool takes 6 h to fill. Is hose B is used by itself, the pool takes 3 h to fill. If hose C is used by itself, the pool takes 2 h to fill. If all three hoses are used at the same time, how long does the pool take to fill?
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There are 64 teams in a basketball tournament each team has 14 players. How many basketball players in all are in the tournament
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What is the slope-intercept form of the linear equation 2x–8y=32 ?
What is the equation of this graphed line?
Enter your answer in slope-intercept form in the box. (Graph is on picture)
Which equation shows y=3/4x-5/2 in standard form?
A. 3x−4y=10
B. 3x−4y=−10
C. 4x−3y=10
D. 4x−3y=−10
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1. The slope-intercept form of the linear equation [tex]\(2x - 8y = 32\)[/tex] is [tex]\(y = \frac{1}{4}x - 4\).[/tex]
2. The equation of the graphed line is [tex]\(y = -\frac{9}{8}x + 7\).[/tex]
3. The standard form of [tex]\(y = \frac{3}{4}x - \frac{5}{2}\)[/tex] is option A: [tex]\(3x - 4y = 10\).[/tex]
Let's break down the given information step by step:
1. Slope-Intercept Form of the Linear Equation:
- The given equation is 2x - 8y = 32.
- To express it in slope-intercept form (y = mx + b), we need to solve for y:
2x - 8y = 32
-8y = -2x + 32
[tex]y = \frac{1}{4}x - 4[/tex]
Therefore, the slope-intercept form of the given equation is [tex]\(y = \frac{1}{4}x - 4\)[/tex].
2. Equation of the Graphed Line:
- The graphed line has the equation [tex]\(y = -\frac{9}{8}x + 7\)[/tex].
3. Standard Form of [tex]\(y = \frac{3}{4}x - \frac{5}{2}\)[/tex]:
- We want to express [tex]\(y = \frac{3}{4}x - \frac{5}{2}\)[/tex] in standard form (Ax + By = C).
- Multiply both sides of the equation by 4 to get rid of fractions:
4y = 3x - 10
3x - 4y = 10
Therefore, the standard form of [tex]\(y = \frac{3}{4}x - \frac{5}{2}\) is \(3x - 4y = 10\)[/tex].
Given this information, the correct answer is A. 3x − 4y = 10.
sec theta = 11/4, cot theta < 0
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Mate weighed each of his cats. He found that Betty weighed 1 1/4 kilograms, Fido weighed 2 kilograms, Spot weighed 1 5/8 kilograms, Yogi weighted 3 4/9 kilograms, and Smart weighed 4 1/10 kilograms
What was the weight of Nate’s heaviest cat?
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The weight of Nate’s heaviest cat is:
4 1/10 kilograms=4.1 kilograms ( Smart)
Step-by-step explanation:Weight of Betty is:1 1/4 kilograms which in decimals is: 1.25 kilograms.
Also,
Weight of Fido is:2 kilograms
Weight of Spot is:1 5/8 kilograms which in decimals is: 1.625 kilograms
Weight of Yogi is:3 4/9 kilograms which in decimals is: 3.444 kilograms
Weight of Smart is:4 1/10 kilograms which in decimals is: 4.1 kilograms
Hence, we observe that Smart weight is highest amongst the weight of the other cats.
a football team lost 4yards on each of 2 plays,gained 14 yards on the thrid play and lost 5 yards on the fourth play.
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Set up the equation
The product of a number(variable) and 4 increased by 16 is -2
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now I will solve it just for fun..
4x= -18
x= -4.5
what percentage is equal to 2/5?
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Because, 2/5 equals 4/10. 10x10=100, so 4x10=40, so 40%.
___________________________________________________
Explanation:
___________________________________________________
2/5 = x/ 100 ; Solve for "x" ;
Looking at the denominators:
5*(what value) = 100 ? ; 100÷ 5 = 20 ;
So "5*20 = 100" .
So; "2/5 = (2*20)/(5*20) = 40/100 = 40% .
→ Since: 40% = 40/100 = 4/10 = (4÷2)/(10÷2) = 2/5 .
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Alternate method:
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2/5 = 2÷5 = 0.4 .
0.4 = 4/10 = =(4*10)/(10*10) = 40/100 = 40% .
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Alternate method:
____________________________________________
Given: "2/5" ; We look at the denominator and notice it is "5" ; and we known that "5*2" = 10" ;
So, "2/5" = (2*2)/ (5*2) = 4/10 = (4*10)/(10*10) = 40/100 = 40% .
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Which function represents the graph of y=10(4)x ?
f
g
h
j
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Hence the the function that represents the graph of the given function is:
g
step-by-step-explanation:We are given graphs of four function.
f,g,h and j and we are asked to find which of the following given four graphs represents the graph of the function:
[tex]y=10\times 4^x[/tex]
Clearly when x=0 we see that the function gives the value.
[tex]y=10\times 4^0\\\\y=10\times 1\\\\y=10[/tex]
Hence when x=0 the graph of the function must pass through 10. i.e. the graph of the function passes through the point (0,10).
Hence the the function that represents the graph of the given function is:
g
When comparing answers on a group assignment, Jenny and Jeremy found that their answers did not match.
Part 1: Who do you believe has the correct solution for the group assignment—Jenny or Jeremy? In two or more complete sentences, explain, in mathematical terms, the reasoning behind your conjecture.
Part 2: Use long division to convert the fraction provided in each of the student's answers to a decimal number. Include all of your calculations in your final answer.
Part 3: Using complete sentences, compare your conjecture in Part 1 with your results in Part 2. Was your conjecture correct or incorrect?
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The decimal number would be 0.41.