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Leto [7]
3 years ago
12

7. Find all geometric sequences such that the sum of the first two terms is 24 and the sum of the first

Mathematics
1 answer:
sesenic [268]3 years ago
6 0

Answer:

Step-by-step explanation:

Let the first term is n, then the second term must be an where a is a common ratio, and the third term is a^2 n

so, n + an = 24

n + an + a^2 n = 26

solve for a, then solve for n

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What is the solution of sqrt x+2-15=-3
antiseptic1488 [7]

Answer:

Step-by-step explanation:

Without brackets, we are not exactly sure what is under the root sign. There are 3 choices.

sqrt(x) + 2 - 15 = - 3

sqrt(x + 2) - 15 = - 3

sqrt(x + 2 - 15) = - 3

I think the middle one is what you intend. If not leave a note.

sqrt(x + 2) - 15 = - 3                Add 15 to both sides.

sqrt(x + 2) - 15+15 = - 3+15     Combine

sqrt(x + 2) = 12                        Square both sides

x + 2 = 12^2                             Do the right

x + 2 = 144                               Subtract 2 from both sides.

x + 2-2 = 144-2

x = 142

3 0
4 years ago
HELP ME PLEASE!! ASAP IF YOU CAN IM STUCK ON THIS QUESTION
Pani-rosa [81]

Answer:

5x=15

Step-by-step explanation:

Product means multiplication, and 5x=15 is the only one doing multiplication

3 0
3 years ago
One hose can fill a goldfish pond in 24 ​minutes, and two hoses can fill the same pond in 15 minutes. Find how long it takes the
sergiy2304 [10]

Answer: 24

Step-by-step explanation:

its 1 horse

8 0
3 years ago
Read 2 more answers
How many numbers are equal to the sum of two odd, one-digit numbers?
Dennis_Churaev [7]

Answer:

Seven numbers.

Step-by-step explanation:

Finding the numbers, which are equal to the sum of two odd number and it has to be single digit number.

Lets look into numbers which are odd and single digit.

1 = 1+3, 1+5, 1+7, 1+9

∴ Sum of the number is 4,6,8\ and\ 10

3 = 3+5, 3+7, 3+9

∴ Sum of above number is 8,10\ and\ 12

5 = 5+7, 5+9

∴ Sum of above number is 12\ and\ 14

7= 7+9

∴ Sum of above number is 16

Now, accumlating numbers which are fullfiling the criteria, however, making sure no number should get repeated.

∴ Numbers are: 4,6,8,10,12,14\ and\ 16

Hence, there are total 7 numbers, which  are equal to the sum of two odd, one-digit numbers.

4 0
3 years ago
20 fish are in a bowl 8 die three swim away and six drown how many arein the bowl?
BaLLatris [955]
20-8=12
12-3=9
9-6=3
3 fish are in a bowl.
Have a fab sunday!
7 0
3 years ago
Read 2 more answers
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