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
11111nata11111 [884]
3 years ago
7

What is the 8th term of the geometric sequence with this explicit formula ?

Mathematics
1 answer:
Alina [70]3 years ago
7 0

Answer: C.) - 896

Step-by-step explanation:

Given the explicit formula :

An = 7 × (-2)^(n-1)

The 8th term of the geometric sequence using the formula will be :

n = 8

A8 = 7 × (-2)^(8-1)

A8 = 7 × (-2)^7

A8 = 7 × (-128)

A8 = - 896

You might be interested in
Fill in the blank.
Amiraneli [1.4K]

Answer: x ≈ 18 ft

Step-by-step explanation:

We will use our trig knowledge to solve this.

The man is standing 10 ft away, but we also need to add the 5 ft shadow as well as that is a point on our triangle.

We can set up a simple trig equation of: tan(50) = x/15

x being the height of the lamppost.

Now we solve.

tan(50) = 1.1918

1.1918 *15 = x

x = 17.876

Now round to the nearest foot.

x ≈ 18 ft

4 0
2 years ago
Solve the equation by completing the square 5x(x+6)=-50
motikmotik
First lets distribute the 5x 
5x^2 + 30x = -50

Lets divide every term by 5 
x^2 + 6x = -10 

To complete the square we have to half the b value, which in this case is 6. Then square it. 
Half of 6 is 3, 3 squared is 9 

Add that to both sides of the equation 
x^2 + 6x + 9 = -1 

Find the binomial squared
(x+3)^2 (If you're wondering how i got that please comment) 

(x+3)^2 = -1 

Take the square root of the equation of both sides
(x+3) = +/- i
x = -3 +/- i
x = -3 - i
and 
x = -3 + i


3 0
2 years ago
What is 88% of 600 shirts
vlabodo [156]
Hack:
x% of 100=x
88% of 100=88
times both sides by 6
88% of 600=6 times 88
88% of 600=528


answer is 528
8 0
3 years ago
Read 2 more answers
What is the answer for (10+4)x7-45*9 ???
Viktor [21]
I got -307 (if the x stands for multiplication)
6 0
2 years ago
Read 2 more answers
Write an addition problem that has 9/10 as the sum
kicyunya [14]
There are a number of different problems that you could do that will give you an outcome of 9/10
For example, 1/2 and 2/5 add up to 9/10.
3/10 and 6/10 also add up to 9/10.

Find the sum of 7/10 and 1/5
Find the sum of 7/20 and 11/20
Find the sum of 1/2 and 3/10 and 1/10
Find the sum of 1/5 and 2/5 and 3/10

Hope this helps :) 
3 0
2 years ago
Other questions:
  • Please help -4/7p+(-2/7p)+1/7 Combining like terms with rational coefficients
    14·1 answer
  • 1 lakh more then 45,25,306​
    7·1 answer
  • Working alone, Ryan can dig a 10 ft by 10 ft hole in five hours. Castel can dig the same hole in six hours. How long would it ta
    8·1 answer
  • Solve for h in the mathematical formula A = 1/2 (a+b)h.
    11·2 answers
  • SOMEONE HELPPPP MEEEEE PLzzzzzzz
    10·2 answers
  • I say need help plz can u also add a formula?
    8·1 answer
  • Write the equation y = -(x – 5)2 + 21 in standard form.
    9·1 answer
  • Help me please it's due at 3pm this is only up to you guys to help me
    6·2 answers
  • Leila runs at 12 miles per hour. Find the number of miles she can travel if she runs for k less than 6 hours​
    10·1 answer
  • We can describe 3x - 2 as an expression.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!