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
malfutka [58]
3 years ago
10

If (-7,43) and (4,-12) are two anchor points on the trend line, then find the equation of the line

Mathematics
1 answer:
Romashka [77]3 years ago
8 0
Slope, found using the points is -55/11 = -5
We use that for the equation y=mx+b where m=-5. Since we also know one of the points, we can plug that in and find b
-12=-5(4)+b
-12=-20+b
8=b

So the equation of the line is y=-5x+8
You might be interested in
According to a study conducted by an​ organization, the proportion of Americans who were afraid to fly in 2006 was 0.10. A rando
jeyben [28]

Answer:

Event is not unusual(p>0.05).

Step-by-step explanation:

Given that :

p=0.10\\\\n=1100\\\\x=121

#The sample proportion is calculated as:

\hat p=\frac{x}{n}\\\\=\frac{121}{1100}\\\\=0.1100

#Mathematically, the z-value is the value decreased by the mean then divided  the standard deviation :

z=\frac{\hat p- p}{\sqrt{\frac{p(1-p)}{n}}}\\\\\\\\=\frac{0.11-0.10}{\sqrt{\frac{0.10(1-0.10)}{1100}}}\\\\\\=1.1055

#We use the normal probability table to determine the corresponding probability;

P(X\geq 121)=P(Z>1.1055)\\\\=0.1314

Hence, the probaility is more than 0.05, thus the event not unusual  and thus  this is not necessarily evidence that the proportion of Americans who are afraid to fly has increased.

8 0
3 years ago
After 10 years, Hamid's account earned $300 in interest. If the interest rate (in decimal form) is 0.06, how much did Hamid init
tester [92]

Answer:

  • p = I/(rt)
  • p = $500

Step-by-step explanation:

To solve the equation I=prt for p, divide by its coefficient, rt. That gives ...

  p = I/(rt)

__

Now, to answer the question, you can substitute the given values for I, r, t and you have ...

  p = $300/(0.06·10) = $500

Hamid initially invested $500.

6 0
3 years ago
You scored a 95% on your math quiz the quiz was out of 60 points how many points did you get
amid [387]
60/100 times by 95 so 57
5 0
4 years ago
Read 2 more answers
What is a number divided by 9
LuckyWell [14K]
18 divided by 9 is 2
8 0
3 years ago
Read 2 more answers
Which number do you add to 3 to get 0?
grandymaker [24]

Answer:

-3

Step-by-step explanation:

3 + (-3) = 0

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which equation represents the problem? anna can spend a total of $48 on school supplies. she needs to buy school supplies for 9
    13·1 answer
  • If you invested $500 at 5% simple interest for 2 years, how much interest do you earn? Show work and answer in complete sentence
    14·1 answer
  • Calculate the moment of the 250 n force on the handle of the monkey wrench
    7·1 answer
  • I need to convert from meters to feet and i do not know how to convert.
    14·2 answers
  • A regulation girls fast pitch softball diamond has bases that are 60 feet apart. A regulation professional baseball diamond has
    10·1 answer
  • The ratio of plates to napkins is 3:18. write the ratio in the simplest form
    15·1 answer
  • Find the y intercept of the line 3 x − 2 y = 16
    12·1 answer
  • In the chemical formula 2SO2, how many total atoms of oxygen (O) are there?​
    9·2 answers
  • Find the value of x ​
    15·1 answer
  • If 7x7 is 49 what is 77x77?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!