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
Arte-miy333 [17]
3 years ago
14

Q(–1, a) is 4 √5 units away from P(3, –2). Find all possible values of a.

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
8 0

Answer:

a=6,-10

Step-by-step explanation:

4\sqrt{5}=\sqrt{(3+1)^2+(-2-a)^2} \\squaring\\80=16+(2+a)^2\\80-16=(2+a)^2\\(a+2)^2=64\\taking~square ~root\\\\a+2=\pm 8\\either \\a+2=8,\\a=8-2=6\\or\\a+2=-8\\a=-8-2=-10

You might be interested in
A bread recipe calls for a flour to water ratio of 10 to 7. If 600 grams of flour is used in this recipe, how many grams of wate
polet [3.4K]
Grams of water
= (600/10) x 7
= 420
7 0
3 years ago
Read 2 more answers
14. Solve 10 + 6(-9 – 4x) = 10(x - 12) + 8.
olya-2409 [2.1K]
The answer is c X=_18
5 0
3 years ago
Read 2 more answers
SOS MAYDAY!!! URGENT HELP REQUIRED THIS IS NOT A DRILL WEEEEEEEEEEEEEEEEEWOOOOOOOOOOOOO
timurjin [86]
The answer choice is B I just took
8 0
3 years ago
Need help ASAP PLEASE!!!!
stepan [7]
Look at the face of the pyramid facing you.  The length of the base of this pyramid is 82 m; half of that is 41 m.  

If you were to draw a straight vertical line through the vertex of the pyramid, the bottom of this line would be at the very center of the base and also be 41 in perpendicular distance from any of the edges of the base of this pyramid.

Let the height of the pyramid be y, as measured upward from the center of the base of the pyramid.  This center is, as before, 41 m from any side of the pyramid base, a horiz. distance.

Then, tan 52 deg = y / 41 m, and so y = height of pyramid =

(41 m)(tan 52 deg)  = (41 m) (1.28) = 52.48 m
6 0
4 years ago
Classify each of the following as rational or irrational:
Gemiola [76]

Answer:

Rational:-5, 2/3, 0.5, sqrt 16

Irrational: sqrt 11, pi

Step-by-step explanation:

A rational number is a number which can be represented as a ratio or fraction and whose decimal is terminating or repeating. This includes all whole numbers positive and negative too.

Ex. -5, 2/3, 0.5, sqrt 16

An irrational number is a number that CANNOT be represented as a ratio or fraction and whose decimal is NOT terminating or repeating. These often include square roots and numbers like pi.

Ex. sqrt 11, pi

7 0
3 years ago
Other questions:
  • A ship travels due west for 90 miles and turns to travel 80 miles in the northwest direction, at a 120° angle. How far is the sh
    11·1 answer
  • A random sample of 160 car purchases are selected and categorized by age. The results are listed below. The age distribution of
    6·1 answer
  • The perimeter of triangle ABC is given by the expression 3x2 - 7x + 2.
    7·2 answers
  • Ignore my errors please. how would i solve these problems... please explain step by step
    12·1 answer
  • Share 30 oranges between Alan and Andy in the ratio 6:4. Alan gets_
    6·1 answer
  • Hypothesis: Family centered care is a significant predictor of children's health-related quality of life, independent of illness
    9·1 answer
  • After a storm, two street lights with the same length are leaning against each
    9·1 answer
  • A grocery store clerk put only cans of tomato soup and cans of chicken soup on a shelf. The ratio of the number of cans of chick
    5·1 answer
  • Determine the measure of angle BZC.
    15·1 answer
  • AB is a straight line.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!