1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lubasha [3.4K]
3 years ago
5

R-17.1=-4.8 and show ur work

Mathematics
1 answer:
irina1246 [14]3 years ago
5 0
I don't know hibgiuuibbohubhouhigohiboihbobihioijboib
You might be interested in
What can 1\18n be simplified as?
il63 [147K]
1/18 can't be simplified because 1 cant be simplified. What ever happens to one side of the equation happens to the other, so nothing can happen to the 1 so nothing can happen to the 18

It cant be simplified
 
3 0
3 years ago
Hi :) how to do question 7 ?
Gre4nikov [31]

Answer:

Step-by-step explanation:

We khow that the equation of a circle is written this way :

(x-a)²+(y-b)²=r² where (x,y) are the coordinates of the cercle's points and (a,b) the coordinates of the cercle's center and r the radius .

Our task is to khow the values of a and b :

  • We khow that the center is lying on the line 3x+2y=16⇒ 2y=-3x+16⇒ y= \frac{-3}{2}x+8  
  • We khow that the points P and Q are two points in the cercle
  • Let Ω be the center of this cercle
  • we can notice that : PΩ AND QΩ are both equal to the radius ⇒ PΩ=QΩ= r
  • So let's write the expression of this distance using vectors KHOWING THAT Ω(a,b)
  • Vector PΩ(a-4,b-6) and Vector QΩ(a-8,b-2)
  • PΩ=\sqrt{(a-4)^{2}+(b-6)^{2}  } and QΩ=\sqrt{(a-8)^{2}+(b-2)^{2}   }
  • Let's substitute a by x and b by y
  • PΩ=QΩ we substitute each distance by its expression
  • After simplyfying the expressions we get finally : -12+8x-8y=0
  • now we have -12x +8x-8y=0 and the line equation 3x+2y-16=0
  • these are simultanious equations so after solving them we get x=3.8 wich is approximatively 4 and y=2
  • we substitute a by 4 and y by 2 in PΩ to get the radius
  • we get r = \sqrt{(4-4)^{2}+(2-6)^{2}  } = 4
  • so r²= 16
  • then the equation is : (x-4)²+(y-2)²=16
5 0
3 years ago
Read 2 more answers
Pens cost $2.70.<br><br> What is the cost per pen?
muminat

Answer:

1.70$

Step-by-step explanation:

5 0
3 years ago
Write the equation for a parabola with a focus at (9,0) and a directrix at y = -4.
Alika [10]

Answer:

Step-by-step explanation-3:

8 0
3 years ago
Read 2 more answers
At a large local university, 40% of the students live in the dormitories. A random sample of 80 students is selected for a parti
likoan [24]

Answer:

0.9325

Step-by-step explanation:

Given  

n = sample size = 80

p = probability = 0.4

q = 1 – p = 0..6

standard deviation for the proportion = √ (p * q) /n = √(0.4*0.6)/80 = 0.0547

for the proportion mean is 0.4

now we can find z and the probability  

P (0.3<mean<0.5) = P((0.3– 0.4)/0.0547 < z < (0.5– 0.4)/0.0547)

P (0.3<mean<0.5) = P(-1.828< z < 1.828)

Using a z table

P (0.3<mean<0.5) = 0.9325

7 0
3 years ago
Other questions:
  • I need help in this one
    8·1 answer
  • Sanji earns $2,000 a month. He wants an
    10·1 answer
  • Help me please I’m dumb
    8·1 answer
  • Will give brainliest!
    8·1 answer
  • 94% of salmon pass through a single dam unharmed. By what percent does the number of salmon decrease when passing through a sing
    15·2 answers
  • I didnt mean to write this question so I guess Ill just write this down because Ive got to put something.
    12·1 answer
  • Two ordered pairs that are located exactly six units from (2, -3).
    9·1 answer
  • 832.41 ÷ 10 =<br><br> what is the answer
    5·2 answers
  • 5.035 rounded to the nearest hundredth
    7·2 answers
  • 10. The fifth term of an arithmetic sequence is 11 and the tenth term is 41. What is the first term? ​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!