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
Elan Coil [88]
3 years ago
11

For what value is a is (a,9) a solution of the equation y=2x+1

Mathematics
1 answer:
yanalaym [24]3 years ago
7 0

Answer:

a = 4

Step-by-step explanation:

y = 2x + 1 ......(1)

Going through y - y1 = m(x - x1)

m is slope and it is 2

y1 = 9 and x1 = a

y - 9 = 2(x - a)

y - 9 = 2x - 2a

y = 2x - 2a + 9 ........(2)

Equating (1) and (2)

2x + 1 = 2x - 2a + 9

Collecting like terms

2x - 2x + 2a = 9 - 1

2a = 8

a = 8/2

a = 4

You might be interested in
Finding the Sum of a System of Equations
s344n2d4d5 [400]
The Answer is : -3y = 3
4 0
4 years ago
I want to build a deck around my pool that is the same width all the way around. If the pool is 8meters by 10meters and I have e
anastassius [24]

Answer:

Step-by-step explanation:

4 0
2 years ago
Please help me with this problem i need this now
Bad White [126]

Answer:

$2,975

Step-by-step explanation:

Discount = Original Price x Discount %/100

Discount = 3500 × 15/100

Discount = 3500 x 0.15

You save = $525.00

Final Price = Original Price - Discount

Final Price = 3500 - 525

Final Price = $2,975.00

4 0
2 years ago
Joanne and Ed Greenwood built a new barn with an attached arena. To finance the loan, they paid $1,326 interest on $47,600 at 4%
gizmo_the_mogwai [7]

Answer:

Step-by-step explanation

Note that

Interest is represented by I=1326

The principal is represented by P=47,600

Rate is R =4%

And Time is year

Interest is calculated using the formulae,

I =PRT/100

From the above formulae, time can be calculated as

T=100I/PR

T= 100×1326/(47600×4)

T= 132600/190400

T= 0.6964 years

To convert to days, multiply by 365(since those no of days make a year)

T= 0.6964×365=254 days

This was approximated to the nearest day

Answer is 254 days

6 0
3 years ago
Coefficient of x^2 in expansion of the binomial theorem (2x-1)^4 show your work
tekilochka [14]

Answer:

24

Step-by-step explanation:

If you use Pascal's triangle, which I did, you will look at the 5th row of the triangle which contains the numbers 1, 4, 6, 4, 1

If we expand using a = 2x and b = -1, then the expansion looks like this:

1(2x)^4(-1)^0+4(2x)^3(-1)^1+6(2x)^2(-1)^2+4(2x)^1(-1)^3+1(2x)^0(-1)^4

If you simplify all that down by multiplying, you'll get

16x^4-32x^3+24x^2-8x+1

If you don't know how to use Pascal's triangle, you need to learn.  It's so very cool!

4 0
3 years ago
Other questions:
  • What are the values for the coefficients and constant term of 0 = 2 + 3x2 – 5x?
    11·1 answer
  • PLEASE HELP WITH 2 QUESTIONS WILL GIVE MEDAL AND BRAINLIEST
    11·2 answers
  • Tramain made the table below for the system of equations y=2x+1 and y=-3x+11
    11·1 answer
  • In the football game between NM and JL. It's the end of the second half and the cougars are attempting a miraculous 50 yard fiel
    14·1 answer
  • Please help me fill this in
    10·1 answer
  • Need answer quick plz!!
    15·2 answers
  • Solve b+12≤26. Graph the solution
    11·1 answer
  • Write a real life scenario that is represented by the integer of 15.​
    11·1 answer
  • A patch of six cans of coffee cost $12 how much would 19 cans of coffee cost
    15·1 answer
  • Select all the numbers that are solutions that are equal x^2=15
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!