![ababot8339](/avatars/16013.jpg)
ababot8339
01.04.2021 •
Mathematics
Helllohello help please if you want -
Solved
Show answers
More tips
- S Society and Politics Why are thugs called gopniks ? A fascinating journey through Russian subculture...
- A Animals and plants Want a Perfect Lawn? Learn How to Plant Grass the Right Way...
- A Animals and plants How to Properly Care for a Pet Decorative Rabbit at Home?...
- C Computers and Internet How to Check the Speed of My Internet?...
- H Health and Medicine 10 Ways to Cleanse Your Colon and Improve Your Health...
- W Work and Career How to Write a Resume That Catches the Employer s Attention?...
- C Computers and Internet Е-head: How it Simplifies Life for Users?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
Answers on questions: Mathematics
- M Mathematics One side of a right triangle is known to be 12 cm long and the opposite angle is measured as 30°, with a possible error of ±1°. Use differentials to estimate the error in computing...
- M Mathematics Which point will satisfy the inequality...
- M Mathematics When a man observed a sobriety checkpoint conducted by a police department, he saw drivers were screened and were arrested for driving while intoxicated. Based on those results,...
- M Mathematics Based on the scatter plot shown, it would be reasonable to conclude that the correlation coefficient for x and y is: A. less than zeroB. between 0 and 0.5 C. greater than 0.5 D....
- M Mathematics Please help me with this geometry question :((...
- M Mathematics Solve the oblique triangle where side a has length 10 cm, side c has length 12 cm, and angle beta has measure thirty degrees. Round all answers using one decimal place....
- M Mathematics A survey of 500 randomly selected adults found that 57% say that they would take a ride in a fully self-driving car. The 95% confidence interval for the true proportion of all adults...
- M Mathematics Someone please answer this emergency pleaseee...
- M Mathematics A car traveling at 65 mph leaves a 25 foot skid mark. What is the ratio of the speed (mph) to length of skid mark (feet)? Give your answer in simplest form....
- M Mathematics Explain how, if you have the attributes given below for the conic you chose, you can derive its equation in standard form. ellipse: foci: (1, 5) (1, -1); center: (1, 2); vertices:...
Ответ:
True
Step-by-step explanation:
Let's take a problem such as 3x-2=6
To isolate the variable, you must get rid of everything on one side and essentially do the inverse to the other side. We see -2, so you have to add 2 to each side.
Now you have 3x=8
Next, we device each side by 3. Right now, x is being multiplied by 3 so we have to do the inverse.
Answer is x = 8/3 or 2.666666666666667
Ответ:
true
Step-by-step explanation:
Ответ:
P = (-1,1,1)
Step-by-step explanation:
for the line
L (t) = (1 − 2t, 2t − 1, t)
since the vector that is tangent to L is its derivative L'=dL/dt , then
L'= dL/dt (t) = (−2, 2 , 1)
then the vector PQ (P to Q) is
PQ = (x,y,z) - (1, 2, 3) = ( x-1 , y-2 ,z-3)
since P belongs to L → x= 1-2t . y=2t-1 and z=t ,
PQ = ( x-1 , y-2 ,z-3) = (-2t , 2t-3 , t-3)
to be ortogonal to L , PQ should be ortogonal to L' , then the dot product between PQ and L should be 0
PQ * L' = 0
(-2t , 2t-3 , t-3)* (−2, 2 , 1) =0
4t + (4t-6) + (t-3) = 0
9t - 9= 0
t = 1
then
P = L(t=1) = ( 1-2*1 , 2*1-1 , 1 ) = (-1,1,1)
P = (-1,1,1)