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
pantera1 [17]
3 years ago
5

A direct variation function contains the points (-9, -3) and (-12, 4). Which equation represents the function"

Mathematics
1 answer:
Kitty [74]3 years ago
4 0
4-(-3)/-12-(-9) = 7/-3



Y= -7/3x
-3= -7/3(-9) +b
-3= 21 + b
B= 18


Y= -7/3x + 18
Hope this helps!
You might be interested in
I don't know how to divide who can't show me please?
andrezito [222]

this how you divide I hope you understand now how to divide



5 0
4 years ago
Read 2 more answers
Directions: Indicate the FOIL for the problem:<br><br>(3x-2)(2x-3) First<br><br>​
MrRissso [65]

Answer:

6x^{2} +9x -4x+6\\

Step-by-step explanation:

First you take 3x times 2x since its the first of both equations, which will give you 6x squared.

Then take the outer ones of both problems which is 3x times 3 which is 9x.

Then the inner, -2 times 2x which is -4x

Then the last of both individual problems which is -2 times -3 which is positive 6.

8 0
2 years ago
The probability that an archer hits her target when it is windy is 0.4; when it is not windy, her probability of hitting the tar
zzz [600]

Answer:

a) the probability is 0.12 (12%)

b) the probability is 0.61 (61%)

c) the probability is 0.476 (47.6%)

a) the probability is 0.538 (53.8%)

Step-by-step explanation:

a) denoting the event H= hits her target and G= a gust of wind appears hen

P(H∩G) = probability that a gust of wind appears * probability of hitting the target given that is windy = 0.3* 0.4 = 0.12 (12%)

b) for any given shot

P(H)= probability that a gust of wind appears*probability of hitting the target given that is windy + probability that a gust of wind does not appear*probability of hitting the target given that is not windy = 0.3*0.4+0.7*0.7 = 0.12+0.49 = 0.61 (61%)

c) denoting P₂  as the probability of hitting once in 2 shots  and since the archer can hit in the first shot or the second , then

P₂ = P(H)*(1-P(H))+ (1-P(H))*P(H) = 2*P(H) *(1-P(H)) = 2*0.61*0.39= 0.476 (47.6%)

d) for conditional probability we can use the theorem of Bayes , where

M= the archer misses the shot → P(M) = 1- P(H) = 0.39

S= it is not windy when the archer shots → P(S) = 1- P(G) = 0.7

then

P(S/M) = P(S∩M)/P(M) = 0.7*(1-0.7)/0.39 = 0.538 (53.8%)

where P(S/M)  is the probability that there was no wind when the archer missed the shot

7 0
3 years ago
Plz help <br> People with a strong mind won't ignore
Genrish500 [490]

Answer:

28. (H) 24 ft

30. (F) \frac{5}{52}

Step-by-step explanation:

28. A right triangle can be formed, where the length of the cable represents the hypotenuse, and the ground represents the base of the triangle. From the pythagorean theorem,

a^2 + b^2 = c^2

where a and b are legs, and c is the hypotenuse of a right triangle.

So

18^2 + b^2 = 30^2\\b = \sqrt{30^2 - 18^2}\\b = \sqrt{576}\\b = 24

30. The probability of drawing a red 1 is \frac{2}{52} (a red star 1 or a red heart 1), the probability of drawing a black 3 is \frac{2}{52} (a black triangle 3 or a black circle 3), and the probability of drawing a six of hearts is \frac{1}{52} (since there is only one six of hearts in the entire deck). Since each of the cards is mutually exclusive from one another, the probability of drawing any of them is simply all of their probabilities added together. That is,

\frac{2}{52} + \frac{2}{52} + \frac{1}{52} = \frac{5}{52}

6 0
4 years ago
Is this right? I feel like I’m wrong.
Arisa [49]

Answer:

no I believe you are correct

Hope This Helps! Have A Nice Day!!

4 0
4 years ago
Read 2 more answers
Other questions:
  • Rewrite 56 + 32 as the product of the GCF and a sum.
    9·1 answer
  • What is the equation, in point-slope form, for a line that goes through (8, −4)) and has a slope of −56 ?
    14·2 answers
  • A cylinder has a lateral area of 120π square metres. It has a height of 7 metres. Find the radius, round to the nearest tenth.
    14·1 answer
  • PLEASE HELP<br> IM STUCK
    8·2 answers
  • Drag each figure to show if it is similar to the figure shown or why it’s not similar
    13·1 answer
  • Finley makes 11 batch of her favorite shade of orange paint by mixing 55 liters of yellow paint with 33 liters of red paint. How
    14·1 answer
  • The measure of the supplement of abc equals 180 minus m Abc this is the definition of supplement or complement angle
    14·1 answer
  • The nth term of the sequence -2, 1, 4, 7, 10,... is given by the formula
    7·1 answer
  • Which of the following is a linear function?
    12·2 answers
  • PLEASE HELP Which expression represents the difference quotient of the function f (x) = negative StartRoot 2 x EndRoot?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!