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
Oksi-84 [34.3K]
3 years ago
11

Ab and bc form a right angle at point B. if a= (-3,-1) and B= (4,4) what is the equation of BC?

Mathematics
1 answer:
Vesnalui [34]3 years ago
3 0

Answer:

Option C -7x-5y=-48

Step-by-step explanation:

step 1

Find the slope of AB

we have

A(-3,-1) and B(4,4)

The slope m is equal to

m=(4+1)/(4+3)

m=5/7

step 2

Find the slope of BC

we know that

If two lines are perpendicular, then the product of their slopes is equal to -1

so

m1*m2=-1

we have

m1=5/7

substitute

5/7*m2=-1

m2=-7/5

step 3

Find the equation of the line into slope point form

y-y1=m(x-x1)

we have

m=-7/5

B(4,4)

substitute

y-4=-(7/5)(x-4)

Multiply by 5 both sides

5y-20=-7x+28

7x+5y=28+20

7x+5y=48

Multiply by -1 both sides

-7x-5y=-48

You might be interested in
The half-life of caffeine in a healthy adult is 4.8 hours. Jeremiah drinks 18 ounces of caffeinated
statuscvo [17]

We want to see how long will take a healthy adult to reduce the caffeine in his body to a 60%. We will find that the answer is 3.55 hours.

We know that the half-life of caffeine is 4.8 hours, this means that for a given initial quantity of coffee A, after 4.8 hours that quantity reduces to A/2.

So we can define the proportion of coffee that Jeremiah has in his body as:

P(t) = 1*e^{k*t}

Such that:

P(4.8 h) = 0.5 = 1*e^{k*4.8}

Then, if we apply the natural logarithm we get:

Ln(0.5) = Ln(e^{k*4.8})

Ln(0.5) = k*4.8

Ln(0.5)/4.8 = k = -0.144

Then the equation is:

P(t) = 1*e^{-0.144*t}

Now we want to find the time such that the caffeine in his body is the 60% of what he drank that morning, then we must solve:

P(t) = 0.6 =  1*e^{-0.144*t}

Again, we use the natural logarithm:

Ln(0.6) = Ln(e^{-0.144*t})

Ln(0.6) = -0.144*t

Ln(0.6)/-0.144 = t = 3.55

So after 3.55 hours only the 60% of the coffee that he drank that morning will still be in his body.

If you want to learn more, you can read:

brainly.com/question/19599469

7 0
2 years ago
What is the true solution to the logarithmic equation below?
Oliga [24]

Answer:

  • x = 2

Step-by-step explanation:

<u>Given:</u>

  • log ₄ (2x) = 1

<u>Solving for x:</u>

  • 2x = 4¹
  • 2x = 4
  • x = 2
3 0
3 years ago
BRAINLIEST TO CORRECT ANSWER!!! NO links as answers, or you will be reported!! (question 4)
In-s [12.5K]

Answer:

Hello! Your answer would be, C) Divide by 2

Step-by-step explanation:

And plz don't be mean. :(

Hope I helped! Brainiest plz!♥ Have a nice afternoon. Hope you make a 100%! -Amelia

8 0
2 years ago
QUESTION 7
elena-s [515]

The average winning per bet is the mean or the expected value of winning a bet.

The statistical term that represents $0.94 is (c) the expected value

From the question, we understand that the gambler has an average winning of $0.94, when he places a bet of $1

This means that:

The average winning on a bet of $1 is $0.94

Average, in statistics means the mean or expected value

Hence, the statistical term for $0.94 is (c) the expected value

Read more about expected values at:

brainly.com/question/14452320

4 0
2 years ago
MARKING BRAINLIEST!! PLEASE HELP ME.
mr_godi [17]

Answer:

Complementary angle

Step-by-step explanation:

It adds up to 90 degrees

4 0
3 years ago
Other questions:
  • What is the perimeter of a rhombus shape street sign with a 35cm side
    15·1 answer
  • Help in this one please
    7·2 answers
  • Draw and label a tape diagram to represent the following (choose two to do):
    11·1 answer
  • Carmine buys 9 plates for $2 each. He also buys 10 bowls. Each bowl costs twice as much as each plate.
    14·1 answer
  • Simplify the expression:<br> 5(-1 + x) =
    15·2 answers
  • Twice the sum of k and 9 is 4
    6·2 answers
  • Which equation best represents the line?
    13·2 answers
  • Can someone pls help me
    10·2 answers
  • What is the average of 4741, 4261, 4628?
    6·1 answer
  • Please answer this question.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!