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
Reptile [31]
3 years ago
14

Choose the correct answer from the given four options:In an AP if a = –7.2, d = 3.6, an = 7.2, then n

Mathematics
1 answer:
Serggg [28]3 years ago
5 0

Answer:

n=5

Step-by-step explanation:

by using

n=(an-a)/a+1

substituting values

n= 7.2-(-7.2)/3.6 +1

n=5

You might be interested in
A diver begins at 150 feet below sea level, descends at a steady rate of 5 feet per minute for 3.5 minutes, and then ascends 122
marusya05 [52]
Start at -150, then add 3(-5), then add 122.2. -150 + 3(-5) + 122.2 = -45.3
3 0
3 years ago
Read 2 more answers
Prove that 3:8 is equal to 12:32 and use a diagram
N76 [4]
3 times 4 =12 8 times 4=32
So 12:32 is the same as 3:8
3 0
3 years ago
HELP PLEASE! Can you please explain so I can understand how it was completed?
nlexa [21]

Answer:

(3 square root of 2 , 135°), (-3 square root of 2 , 315°)

Step-by-step explanation:

Hello!

We need to determine two pairs of polar coordinates for the point (3, -3) with 0°≤ θ < 360°.

We know that the polar coordinate system is a two-dimensional coordinate. The two dimensions are:

  • The radial coordinate which is often denoted by r.
  • The angular coordinate by θ.

So we need to find r and θ. So we know that:

r=\sqrt{x^{2}+y^{2}}       (1)

x = rcos(θ)                                   (2)

x = rsin(θ)                                    (3)

From the statement we know that (x, y) = (3, -3).

Using the equation (1) we find that:

r=\sqrt{x^{2}+y^{2}}=\sqrt{3^{2}+(-3)^{2}} = 3\sqrt{2}

Using the equations (2) and (3) we find that:

3 = rcos(θ)

-3 = rsin(θ)

Solving the system of equations:

θ= -45

Then:

r = 3\sqrt{2}[/tex]

θ= -45 or 315

Notice that  there are two feasible angles, they both have a tangent of -1. The X will take the positive value, and Y the negative one.

So, the solution is:

(3 square root of 2 , 135°), (-3 square root of 2 , 315°)

4 0
3 years ago
Look at the picture above please help!!!
IgorLugansk [536]
I think you have to subtract 60% and 80% which you get 20%
7 0
3 years ago
Please help me ( show ur work it’s multiple choice ):)
GaryK [48]
B=29.4 !!!!!!!! this how i do it

7 0
2 years ago
Other questions:
  • Sami Kemal spent $7.95, $15.20, and $12.47 on entertainment. His
    12·1 answer
  • Which two inequalities can be written to solve the absolute value inequality?
    13·2 answers
  • The legs of a right triangle have lengths of 4 and 5 units. Find the length of the hypotenuse.
    8·2 answers
  • A diver is swimming at -10m. He then descends 3 m and rises 6 m. At what new level is the diver swimming
    9·2 answers
  • Please helppppp!!!100 points
    14·2 answers
  • Xavier is using square tiles to cover a table top. The tiles are 1 1/2in. On each side. The table top is 7 1/2 inches wide and 1
    6·2 answers
  • Convert 52km to miles
    11·1 answer
  • In a sale, normal prices are reduced by 17%.
    13·1 answer
  • The perimeter of a rectangle is 56 cm. The length of the rectangle is 2 cm more than the width. Find the dimensions of the recta
    15·1 answer
  • 10. What is the measure of ZP?*<br> E<br> (15m + 17)º<br> -Q<br> (4m – 10)<br> P<br> (7m - 9)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!