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algol [13]
2 years ago
14

HELP ME PLS!!!!!

Mathematics
1 answer:
Vanyuwa [196]2 years ago
3 0

Answer:

D) 13

\sqrt{169}  = 13

Step-by-step explanation:

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The common ratio in a geometric series is 0.5 and the first term is 256. Find the sum of the first 6 terms in the series
Svetach [21]

Answer:

The sum of the first 6 terms of the series is 504.

Step-by-step explanation:

Given that,

Common ratio in a geometric series is, r = 0.5

First term of the series, a = 256

We need to find the sum of the first 6 terms in the series. If a and r area the first term and common ratio of a series, then the series becomes:

a,ar^1,ar^2,ar^3......

The sum of n terms of a GP is given by :

S_n=\dfrac{a(1-r^n)}{1-r}

Here, n = 6

S_n=\dfrac{256\times (1-(0.5)^6)}{1-0.5}\\\\S_n=504

So, the sum of the first 6 terms of the series is 504.

4 0
3 years ago
Factor completely x2 + 20x − 36. (1 point)
Serggg [28]

Consider the form x^2+bx+c. Find a pair of integers whose product is c and whose sum is b. In this case, whose product is 36 and whose sum is 20.

2, 18

Write the factored form using these integers.

(x+2)(x+18)

4 0
3 years ago
Brainliest for best answer
Mashcka [7]

Answer:

1/2 and 6/1

i belive you cross multiply

so you would get 12/1

so n=12

hopw i helped

Step-by-step explanation:

3 0
3 years ago
2/5(r-2)=3/20(r-4)<br> What is r?
Luden [163]
R equals approximately 4/5
5 0
3 years ago
Read 2 more answers
Write an equation in slope-intercept form of the line shown.
Liula [17]

Answer:

Step-by-step explanation:

y2-y1/x2-x1

1+3

3-1

your slope is 4/2 or 2. keep going down to find what y is when x is 0, which happens to be -5

so now you have a slope and a y intercept you can solve  like y=mx+b where m is your slope and B is your y intercept

y=2x-5 is your answer

5 0
3 years ago
Read 2 more answers
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