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Alona [7]
3 years ago
13

What is the sum of the geometric sequence -4, 24, -144... if there are 10 terms?

Mathematics
1 answer:
grandymaker [24]3 years ago
7 0

Answer:

34552100

Step-by-step explanation:

Sum=a(r^n-1)/(r-1)=-4*((-6)^n)-1)/(-6-1)=-4*((-6)^10)-1)/(-7)=34552100

Solved by gauthmath.

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Kayla wants to represent "18 divided by the sum of 3 and 3". She writes 8/(3x3) . Is Kayla's expression correct? Explain using c
Naya [18.7K]

no it is not correct. 18 divided by the sum of 3 and 3 equals 18 ÷ (3+3)

"sum of 3 and 3 " means 3+3 therefore 8/(3x3) = 8/9 and is completely different from the equation desired to be represented.

4 0
2 years ago
The frequency of A4 is 440.00 Hz. What is the frequency of A6, which is two octaves above A4?
mafiozo [28]
The correct answer is: 1760.00 Hz

Explanation:
The formula to find the unknown frequency is:
(2^n)*f

Where n = Number of octaves above to the known frequency (A4) = 2
f = Known frequency (of A4) = 440 Hz

Hence
(2^2)*(440)
1760 Hz (of A6)<span />
3 0
3 years ago
describe two different ways that you could find the product 8 times 997 using mental math. Find the product and explain why your
Free_Kalibri [48]

Answer:

First in your head multiply 8 by 7. this equals 56. now multiply 8 by 9 twice since there is two 9's. now you have two 72's. Add the 2's together from both 72's. now your numbers are 70, 70, 56 and 4. Add the four to your 5 which is now 96. split 96 between the 70's. not dividing just the two numbers. now you have 79, and 76. put together your numbers and your answer is 7976.

Step-by-step explanation:

3 0
3 years ago
How many days is 736 hours? (Remember your answer need to have the correct amount of sig figs and the correct units written).
Scrat [10]

Answer:

30.6 days

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Solve the inequality:<br><br> 3/10 is greater than or equal to k - 3/5
Ostrovityanka [42]

To solve the inequality 3/10 is greater than or equal to k - 3/5, we must first set it up. Since 3/10 is greater than or equal to something, we will have a greater than or equal to symbol, with the 'mouth' pointing towards 3/10. Setting this up we get:

3/10 ≥ k - 3/5

Now we want to get k by itself on one side. We can do this by adding 3/5 to each side.

3/10 + 3/5 ≥ k

Simplify

9/10 ≥ k

3 0
3 years ago
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