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
Lera25 [3.4K]
3 years ago
8

If P=(-2,5) and (x,-27), find all numbers x such that the vector represented by PQ has length -40

Mathematics
1 answer:
Akimi4 [234]3 years ago
8 0

Answer:

  x ∈ {-26, 22}

Step-by-step explanation:

A graph shows that the points (-26, -27) and (22, -27) lie on a circle of radius 40 centered at (-2, 5). That is, if Q is either one of these points, the vector PQ will have a length of 40:

  • √((-26-(-2))^2 +(-27-5)^2) = √((-24)^2 +(-32)^2) = √1600 = 40
  • √((22 -(-2))^2 +(-27 -5)^2) = √(24^2 +(-32)^2) = √1600 = 40

You can call it -40 if you like, but you have to define what negative length means when you do that.

You might be interested in
You’ve written your first novel and, like many first-time authors, can’t find a publisher. So you’ve decided to self-publish you
Over [174]
P(x) = 4x + 1550 <== ur function

selling only 50 copies...
P(50) = 4(50) + 1550
P(50) = 200 + 1550
P(50) = 1750....so the printing cost for 50 copies is 1750

1750 = 50x....x = cost of each book
1750/50 = x
35 = x.......u would have to sell each book for $ 35 <===
5 0
3 years ago
Where is (0,19) located? Quadrant I Quadrant II Quadrant III Quadrant IV X-axis Y-axis
12345 [234]
Let P(a, b) be a point on the coordinate plane. Then the following hold:


i) If a>0, b>0 then P is in the I.Quadrant.

ii) If a<0, b>0 then P is in the II.Quadrant.

iii) If a<0, b<0 then P is in the III.Quadrant.

iv) If a>0, b<0 then P is in the IV.Quadrant.

v) If a=0 and b is positive or negative, then P is on the y-axis.

vi) If b=0 and a is positive or negative, then P is on the x-axis.


Since we have: a=0, and 19 positive, then this point is on the y-axis.


Answer: y-axis
5 0
3 years ago
Help ASAP, NO LINKS OR YOU WILL BE REPORTED!! WILL GIVE BRAINIEST!
NeTakaya

Answer:

Question.... Why no links, i wont give you any, but why does everyone dislike links? Just so u know in am 9 and i am in high school :)

Step-by-step explanation:

7 0
3 years ago
Please help and Solve for x.
Serhud [2]

Answer:

tan70 = \frac{opp}{adj}  \\  \:  \:  =  \frac{15}{x }  \\  \\  x =  \frac{15 }{tan70 } \\   \\  =  \frac{15}{2.747}  \\  \\  = 5.46

since 5.46 is equal to 5.5...

I think the answer is the first one

7 0
3 years ago
A bread recipe calls for 1 teaspoon of yeast for every 2
Georgia [21]
I believe it is (5,10)
7 0
3 years ago
Other questions:
  • |4.2 – 6.8| + (2.4 + 7.2) A. 11 B. 12.2 C. 20.6 D. 22
    11·1 answer
  • Simplify completely the quantity 4 times x to the third power plus 5 times x to the 2nd power plus 3 times x all over x. (2 poin
    10·1 answer
  • What is 10r-5r+3r-8r?????
    12·1 answer
  • Whats an equivalent ratio for 24:56
    5·1 answer
  • What is 585.30 rounded to the nearest whole number please HURRY
    8·2 answers
  • of the 25 students enrolled in a mathematics class, 2 students are members of the Math Club. These 2 students represent what per
    11·1 answer
  • What is a expression that equals 3/8? Like a written out expression?​
    13·1 answer
  • Help me out with this question (geometry)
    15·1 answer
  • Which system has no solutions?
    11·1 answer
  • A person 6ft tall stands 10ft from point P directly beneath a lantern hanging 30 ft above the ground. The lantern start to fall,
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!