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
REY [17]
3 years ago
7

Please Help Me :(((((( I Really Dont Know How TO Do This :(((((((

Mathematics
1 answer:
mixas84 [53]3 years ago
4 0
<h3>Answer:  an = 6n - 15   (Choice C)</h3>

======================================================

Explanation:

This sequence is arithmetic

The first term is a = -9

The common difference is d = 6 since we're adding 6 to each term to get the next one (eg: -3+6 = 3 or 3+6 = 9 or 9+6 = 15)

Plug those values into the arithmetic nth term formula below

an = a + d*(n-1)

an = -9 + 6*(n-1)

an = -9 + 6n-6

an = 6n - 15

--------------

As a check, let's plug in something like n = 1

an = 6n - 15

a1 = 6*1 - 15

a1 = 6 - 15

a1 = -9

We see that the 1st term is -9, which matches the sequence given

Now let's plug in n = 2

an = 6n - 15

a2 = 6*2 - 15

a2 = 12 - 15

a2 = -3

The 2nd term is -3. This also matches.

I'll let you check the other values of n to confirm the answer.

You might be interested in
Please help :) worth more than 10 points :) Find the area of the triangle.
olga_2 [115]

13 m ...?.........;;;;;;;;;

5 0
3 years ago
Please help with this❤️❤️Please plz
k0ka [10]

Answer:

Step-by-step explanation:

the first answer is D

the second is B

6 0
3 years ago
Anyone wanna pad-let with me?
Damm [24]

Answer:

hey it's you again. daniel

8 0
3 years ago
Read 2 more answers
A car travels 15 1/10 miles in 1/3 of an hour. What is the average speed, in
jasenka [17]

Step-by-step explanation:

Miles = 15 1/10

Miles = 151/10 miles

Hour = 1/3 hour

Av = 151/10 miles / 1/3 hour

Av = 151/10 × 3 / 1/3 × 3

Av = 453/10 miles / hour

Av = 45,3 mil / h

4 0
3 years ago
Read 2 more answers
Suppose a tub has the shape of an elliptical paraboloid given by z = ax2+by2 (where a, b are some positive constants). If a marb
Umnica [9.8K]

Answer:

It would roll in this direction.

\nu  =  (-a/\sqrt{a^2+b^2},-b/\sqrt{a^2+b^2})

Step-by-step explanation:

It would roll to the direction of maximum decrease, which is the -1 times the direction of maximum increase, which is given by the gradient of the function.  

Since  

z =  ax^2  + by^2

For this case, the gradient of your function would be

\nabla z  = (2ax , 2by)

And  -1  times the gradient of your function would be

-\nabla z  = (-2ax , -2by)\\

Then, at

 (1,1,a+b),\\x = 1 \\y = 1

So it would go towards

v = (-2a,-2b)

The magnitud of that vector is

|v| =  2\sqrt{a^2+b^2}

and to conclude it would roll in this direction.

\nu  =  (-a/\sqrt{a^2+b^2},-b/\sqrt{a^2+b^2})

6 0
3 years ago
Other questions:
  • Find the slope of the roof of a home that rises 8 feet for every horizontal change of 24 feet
    15·1 answer
  • Divisions of fractions by fractions
    7·1 answer
  • The bus from Karen's house to school runs 26 to 75 minutes of the bus runs on Monday at 7:05am at which time could the bus run n
    8·1 answer
  • Which equation has a slope of -1 and an x-intercept of 2?
    7·1 answer
  • Consider two circular swimming pools. Pool A has a radius of 22 feet, and Pool B has a diameter of 13.6 meters. Complete the des
    15·1 answer
  • Please help it's due i will give brainly
    12·1 answer
  • Adding a 2 digit number and a 1 digit number with carring ) 21+9=
    12·1 answer
  • There are 140 calories in a 1/3 pack of m&amp;ms . How many calories are in 2 packs of m&amp;ms
    10·1 answer
  • Surface area of solid cuboid 8cm 6cm 2cm
    10·1 answer
  • Absolute Bagels makes bagels using two different recipes, one recipe for regular bagels
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!