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Zarrin [17]
4 years ago
8

In the geometric sequence below, what is the common ratio? 80, 40, 20, 10...

Mathematics
1 answer:
Alja [10]4 years ago
4 0
2:1 because it decreases my half which is the same as saying 2/1
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What's the sum of the first 23 terms of the series: 44+39+34+29+24+...?
IgorLugansk [536]
216 would be your answer if you continued with 24+19+14+9+4
7 0
4 years ago
(w_2)(w+7) multiply and simplify your answer
alexira [117]
If there is no number in between sets of numbers, it's going to be multiplication.
So (w+2) x (w+7)

w+2, well, evaluates into w+2.
w+7 is w+7.

We'll use the FOIL method for this.
FOIL stands for:

First
Outer
Inner
Last

Let's start with the first terms. Multiply them. 
So: w * w.
Combine both w's, and you get w^2.

Now multiply the outer terms. 
w * 7 = 7w.


Then the inner terms. 2 and w.
2 x w = 2w.

So our current numbers are: w^2, 7w, and 2w.
We can add 7w and 2w together.
7w + 2w = 9w.

Now multiply the last terms.
2 x 7 = 14.

So, this simplifies to w^2+9w+14
Hope this helped!
7 0
3 years ago
Read 2 more answers
Solve the equation E = v + Ir for r
iren [92.7K]

Answer:

A. \text{r} = \frac{\text{E}-\text{v}}{\text{I}}

Step-by-step explanation:

E = v + Ir

E - v = Ir (subtract by v on both sides)

(E-v)/I = r (divide by I on both sides)

\therefore \text{r} = \frac{\text{E}-\text{v}}{\text{I}}

7 0
3 years ago
Help me on this please it’s due please help me
Aleks04 [339]

Answer:

<

Step-by-step explanation:

<

8 0
3 years ago
Read 2 more answers
Can someone plz help me
bixtya [17]

Answer:

<u>37500</u>

Step-by-step explanation:

pattern is multiplying by -5.

-7,500*-5 = 37,500

Have a nice day! :-)

5 0
3 years ago
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