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erik [133]
3 years ago
11

1+2+4+8+16+32+........... What is the "n" th term of the

Mathematics
1 answer:
guapka [62]3 years ago
5 0

Answer:    C: 2n

Step-by-step explanation:

Before was   1+2+4+8+16+32+...........

And now       1+2(1)+2(2)+2(4)+2(8)+2(16)+...........

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Find the exact arc length of the given arc. show all work and leave terms of pi and reduce your fraction.
Sauron [17]

Answer:

20/3pi

Step-by-step explanation:

\frac{75}{360}  \times 2\pi \times 16 \\  =  \frac{2400}{360} \pi\\  =  \frac{20}{3}   \pi\\  = 20.94 \: cm

Please give brainliest if it helps

5 0
3 years ago
Find the exact interest for $600 at 8% for 45 days. (Round to the nearest cent.)
KATRIN_1 [288]
Interest is found as the principal times the percentage rate / 100, divided by the proportion of the days. This is, if r is the percentage rate for 1 year, n is the number of days, and p is the amount invested you can calculate the interests as p* (r%/100) * n/365 = $600 * (8/100) * 45/365 = $5.92. So<span> the answer is the option D. 5.92. </span>
5 0
3 years ago
Simplify 3 radical 5 over 4 radical 5
matrenka [14]
3√5 / 4√5                The √5's cancel out

The answer is 3/4
This is because √5 is in both the denominator and the numerator, and so you can pull them both out.
8 0
3 years ago
Read 2 more answers
The length of rectangular garden is 6 feet longer than the width. If the area of the garden is 16 square feet, find the length a
Lyrx [107]

Length = x + 6

Width = x

Area = 16 ft^2

The formula needed is A = L•W.

Here is the set up:

16 = (x + 6)(x)

16 = x^2 + 6x

x^2 + 6x - 16 = 0

Solve for x. After finding x, plug into the definition I gave above for length and width to find your answer.

5 0
3 years ago
State how many imaginary and real zeros the function has.
alukav5142 [94]

Answer:

B. 4 imaginary; 1 real

Step-by-step explanation:

Given the polynomial:

x^5 + 7*x^4 + 2*x^3 + 14*x^2 + x + 7

it can be reordered as follows

(x^5 + 2*x^3 + x ) + (7*x^4  + 14*x^2 + 7)

Taking greatest common factor at each parenthesis

x*(x^4 + 2*x^2 + 1) + 7*(x^4  + 2*x^2 + 1)

Taking again the greatest common factor

(x + 7)*(x^4 + 2*x^2 + 1)

Replacing x^2 = y in the second parenthesis

(x + 7)*(y^2 + 2*y + 1)

(x + 7)*(y + 1)^2

Coming back to x variable

(x + 7)*(x^2 + 1)^2

There are two options to find the roots

(x + 7) = 0

or

(x^2 + 1)^2 = 0 which is the same that (x^2 + 1) = 0

In the former case, x = -7 is the real root.  In the latter, (x^2 + 1) = 0 has no real solution. Therefore, there is only 1 real root in the polynomial.

8 0
3 years ago
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