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Harlamova29_29 [7]

3 years ago

5

Can someone help? I have been stuck on this question forever. ;-;

1 answer:

Alenkinab [10]3 years ago

8 0

The ratio of the circumference to the diameter is 9.42/3 or 3.14. Hope it help!

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£4000 is invested at 1. 5% compound interest. (a) Show that the value of the investment after 2 years is £4120. 90______________

insens350 [35]

Answer:

is this answer correct?

let me know in the comment section!

Step-by-step explanation:

Hope you liked it!

4 0

2 years ago

Ima just give all my points away.<br><br> P.S<br> I don't like you brainly.

OLga [1]

Answer:

interesting

Step-by-step explanation:

5 0

2 years ago

What is 90 plus 60 plus 7x-12

il63 [147K]

$90+60+ 7x -12 = 7x+138$

8 0

2 years ago

Plz do both of them for me and even show the work plzzzzzz

Vinvika [58]

Answer:

(a)= option 3

(b)= option 3

Step-by-step explanation:

(A) It is given that a sequence is defined by the recursive function $a_{1}=1$ and $a_{n}=a_{n-1}+n$

Now, substituting the value of n=2 in above equation,

$a_{2}=a_{1}+2$

$a_{2}=1+2$

$a_{2}=3$

Again putting n=3,

$a_{3}=a_{2}+3$

$a_{3}=3+3$

$a_{2}=6$

Putting n=4,

$a_{4}=a_{3}+4$

$a_{4}=6+4$

$a_{4}=10$

Putting n=5,

$a_{5}=a_{4}+5$

$a_{5}=10+5$

$a_{5}=15$

Putting n=6,

$a_{6}=a_{5}+6$

$a_{6}=15+6$

$a_{6}=21$

Putting n=7,

$a_{7}=a_{6}+7$

$a_{7}=21+7$

$a_{7}=28$

Hence, option 3 is correct.

(B) The given sequence is :

5, -10, 20, -40, 80.....

Since, the given sequence is GP, therefore

$a_{1}=5$ and r=-2

The nth term is given by:

$a_{n}=a_{1}r^{n-1}$

For fifteenth term, put n=15 in above equation, we get

$a_{15}=5(-2)^{14}$

= $5{\times}16384$

= $81920$

Hence, the fifteenth term is 81920.

Option 3 is correct.

5 0

2 years ago

In Practing Partial Products Multiplictaion What im Going to do to 65 × 32 ?

docker41 [41]

Answer:

2080

Step-by-step explanation:

<u>Step 1: Multiply</u>

65 × 32

60*30 + 60*2 + 5*30 + 5*2

1800 + 120 + 150 + 10

2080

Answer: 2080

5 0

3 years ago