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
Natali5045456 [20]
3 years ago
7

Pls help I’ll brainlest ASAP and add extra points I’m failing

Mathematics
1 answer:
Step2247 [10]3 years ago
3 0

Step-by-step explanation:

you drew already the right things, you have everything.

so, what is the problem ?

the most common form of line equation is

y = ax + b

a is the slope of the line. it is expressed as the ratio

y coordinate change / x coordinate change

when going from one point to the other.

b is the y-intercept (the y value when x = 0).

once we have the slope, we get b by using the coordinates of one of the given points as x and y in the equation and solve for b.

so, for the 2 marked points you showed correctly the differences :

x changes by +8 (from -4 to 4).

y changes by -2 (from 3 to 1).

so the slope is -2/+8 = -1/4

the y-intercept we also see directly in the chart : +2.

You might be interested in
. The London Eye is a popular tourist attraction in London, England and is one of the largest Ferris Wheels in the world. It has
astra-53 [7]

Answer:

y=-67.5[cos(\frac{\pi}{15}t)-1]

Step-by-step explanation:

We can start solving this problem by doing a drawing of London Eye. (See attached picture).

From the picture, we can see that the tourists will start at the lowest point of the trajectory, which means we can make use of a -cos function. So the function will have the following shape:

y=-Acos(\omega t)+b

where:

A=amplitude

\omega = angular speed.

t= time (in minutes)

b= vertical shift.

In this case:

A= radius = 67.5 m

\omega=2\pi f

where the frequency is the number of revolutions it takes every minute, in this case:

f=\frac{1}{30} rev/min

so:

\omega=2\pi (\frac{1}{30})

\omega=\frac{\pi}{15} rad/min

and

b= radius, so

b=A

b=67.5m

so we can now build our equation:

y=-67.5cos(\frac{\pi}{15} t)+67.5

which can be factored to:

y=-67.5[cos(\frac{\pi}{15}t)-1]

You can see a graph of what the function looks like in the end on the attached picture.

3 0
3 years ago
.
timofeeve [1]
A=9,805×(1+0.085×7÷12)
A=10,291.16
7 0
3 years ago
HELP
Ira Lisetskai [31]

Answer:

166

Step-by-step explanation:

5/2=2.5

415/2.5

=166

8 0
4 years ago
I NEED HELP SOON AS POSSIBLE! Will give brainlyest
Dimas [21]

Step-by-step explanation:

I think it is the last one.

4 0
3 years ago
Read 2 more answers
Ohn has taken out a loan for college. He started paying off the loan with a first payment of $100. Each month he pays, he wants
Gwar [14]

Answer:

Ohn has paid $5730 in first 20 installments

Step-by-step explanation:

As per the question Ohn payed the first installment =$100

Next month Ohn payed the installment = 1.1×$100

Similarly subsequent installment =1.1×1.1×$100

So we can write first 20 installments as

⇒100+100×1.1+100×1.1²+100×1.1³.........+100×1.1^{20}

And we know in geometric series

1+x²+x³+...........x^{20} = (1-x^{n-1})÷(1-x)

Therefore sum of first 20 installments will be

⇒100(1+1.1²+1.1³............1.1^{20} =(1- 1.1^{20})÷(1-1.1)

= 100(1-6.73)÷(-.1)

=100×5.73÷.1

= $5730

So Ohn has paid $5730


7 0
3 years ago
Other questions:
  • Absolote value x=6. any help
    11·1 answer
  • Find the greatest common factor of 28 and 42
    12·2 answers
  • I know this but my brains not working
    12·1 answer
  • 5 POINTS MATH QUESTION.
    9·1 answer
  • Factor the expression. 14x + 42y
    7·2 answers
  • Find the suitable rearrangement for 1+2+3+4+896+897+898+899​
    15·1 answer
  • Given that 1 inch = 2.54 cm, how many centimeters are there in 5 feet?
    9·1 answer
  • 50 POINTS Here are the prices for cheese pizza at a certain pizzeria: small pizza is 11.60 medium is unknown large is 16.26
    12·2 answers
  • Find the amount you would pay for a jacket that costs $52 that is advertised at 25% off.
    8·1 answer
  • Help!!! Brainliest to 1 or 2 answer!!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!