MathMaster
Q & A
Blog
Tutorials
Calculators
Privacy policy
CONTACT US
Menu
Home
general
use a pattern to prove that 2 3 1
Question
Use a pattern to prove that (-2)-(-3)=1
Like
281
likes
1405
views
Answer to a math question Use a pattern to prove that (-2)-(-3)=1
Cristian
4.7
119
Answers
$-2+3=1$
$1=1$
$\textnormal{True}$
Frequently asked questions (FAQs)
What is the condition for two triangles to be congruent, in terms of their corresponding sides and angles?
+
Math question: Find the limit as x approaches 2 of (3x-5)/(x^2-4x+4).
+
Question: "Factor the expression 7x^2 - 28x + 21 using the distributive property."
+
New questions in Mathematics
A=m/2-t isolate t
1 + 1
-x+3x-2,si x=3
Pedro bought 9 kg of sugar at the price of R$1.80 per kilogram, six packets of coffee at the price of R$3.90 per packet and 8 kg of rice at the price of R$2.70 per kilogram. Knowing that he paid for the purchases with a R$100.00 bill, how much change did he receive?
(m²-121)
1 plus 1
2x-4y=-6; -4y+4y=-8
(-5/6)-(-5/4)
2x+4x=
Scores are normally distributed with a mean of 25 and standard deviation of 5. Find the probability that sixteen randomly selected students have a mean score that is less than 24.
The two sides of the triangle are 12 cm and 5 cm, and the angle between the sides is 60°. Cover the area of the triangle!
Twenty‐five students in a class take a test for which the average grade is 75. Then a twenty‐sixth student enters the class, takes the same test, and scores 70. The test average grade calculated with 26 students will
What is the value of f(-3) for the function X squared+5x-8=
We plan to test whether the mean mRNA expression level differs between two strains of yeast, for each of 8,000 genes. We will measure the expression levels of each gene, in n samples of strain 1 and m samples of strain 2. We plan to compute a P-value for each gene, using an unpaired two-sample t-test for each gene (the particular type of test does not matter). a) What are the null hypotheses in these tests (in words)? [2] b) If, in fact, the two strains are identical, how many of these tests do we expect to produce a P-value exceeding 1/4? [2]
When taking a test with m closed answers, a student knows the correct answer with probability p, otherwise he chooses one of the possible answers at random. What is the probability that the student knows the correct answer given that he answered the question correctly.
Log0
00 piece jigsaw puzzle. the completed puzzle is 10x10. each piech connects to at least 2 other pieces. i plan to assemble by taking pieces out of box one by one. if i've already taken out 2 pieces that dont directly connect, what is the minimum number of additional pieces that i need to draw to in order to guarentee that the original 2 pieces connect?
7- A printing company found in its investigations that there were an average of 6 errors in 150-page prints. Based on this information, what is the probability of there being 48 errors in a 1200-page job?
did an analysis of dropout from the nursing faculty at the Universidad Veracruzana. With a poblation of 122 students, it turned out that according to the gender data, the female sex predominates with 82%, and the male sex male is found with 12%. The main factors why students drop out are, first of all, "Not "re-enrolled" at 49%, second place "Personal reasons" at 20%, third place "change of school" in 11%, "lack of documents" and "economic reasons" in 7%, change of residence and lack of social service in 3%. Of this sample, how many students dropped out for other reasons?
Arturo had hospitalization expenses of $8,300. Your policy for medical expenses Seniors have a deductible of $500 and expenses are paid at a 20% coinsurance. These are the first expenses ever this year, how much will Arturo have to pay in your bill for hospitalization expenses?
Download NOW
Apple store
Download NOW
Google play
Solve NOW
Try On Web
You might be interested in
Calculate to represent the function whose graph is a line that passes through the points (1,2) and (−3,4). What is your slope?
A circular park has a diameter of 150ft. A circular fence is to be placed on the edge of this park. Calculate the cost of fencing this park if the rate charged is $7 per foot. Use π = 3.14.
10.Silvana must knit a blanket in 9 days. Knitting 8 hours a day, at the end of the fifth day, only 2/5 of the blanket was done. To be able to finish on time, how many hours will Silvana have to knit per day?
(x^2+3x)/(x^2-9)=
A hotel in the Algarve had to offer 1 week of vacation to one of its employees as an Easter gift in a random choice. It is known that 80 people work in this hotel unit, 41 of whom are Portuguese and 39 are foreign nationals. There are 14 Portuguese men and 23 foreign women. Using what you know about conditional probability, check the probability that the gift was offered to a Portuguese citizen, knowing that it was a woman.
The director of a company must transfer 6 people from the human resources department to the sales department, in order to sustain sales during the month of December. What is the probability that he will transfer only 2 of them?
2.3/-71.32
Let r: x - y 5 = 0. Determine a general equation of the line s parallel to the line r, which forms an isosceles triangle with area 8 with the line x = 5 and the Ox axis.
Find all real numbers x that satisfy the equation \sqrt{x^2-2}=\sqrt{3-x}
reduce the expression (7.5x 12)÷0.3
Convert 9/13 to a percent
3/9*4/8=
Use linear approximation to estimate the value of the sine of 31o.
The points (-5,-4) and (3,6) are the ends of the diameter of the circle calculate subequation
Give an example of a function defined in R that is continuous in all points, except in the set Z of integers.
Determine the Linear function whose graph passes through the points (6, -2) and has slope 3.
Given the word WEIRD, determine a four-letter offspring that can be formed with the letters of the word written above
a) Statistics scores are normally distributed with the mean of 75 and standard deviation of 7. What is the probability that a student scores between 80 and 88
8/9 divided by 10/6
In a cheese factory, one pie costs 3800 denars. The fixed ones costs are 1,200,000 denars, and variable costs are 2,500 denars per pie. To encounter: a) income functions. profit and costs; b) the break-even point and profit and loss intervals.