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likoan [24]
3 years ago
11

Write the first 5 terms for this sequence:

Mathematics
1 answer:
rewona [7]3 years ago
8 0

Answer:

3, -6, 12, -24, 48

Step-by-step explanation:

Given:

  • a_1=3
  • a_{n+1}=-2 \cdot a_n

Therefore,

a_1=3

a_2=-2 \cdot a_1=-2 \cdot 3=-6

a_3=-2 \cdot a_2=-2 \cdot -6=12

a_4=-2 \cdot a_3=-2 \cdot 12=-24

a_5=-2 \cdot a_4=-2 \cdot -24=48

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Marco went on a hiking trip. The first day he walked 24 kilometers. Each day since, he walked a third of what he walked the day
lapo4ka [179]

Answer: 24X 1-(1/3)^n

1-(1/3)

Step-by-step explanation:

5 0
3 years ago
Toya's dachshund puppy can sprint at a speed up to 15 feet per second. What is this speed in inches per
Andrei [34K]
It would be 180 inches per second

reason: there are 12 inches in a foot so you multiply 12 times 15 and get 180:)
8 0
3 years ago
In abc the measure of side c is 3.9cm if def has a dilation of abc with a scale factor of 2.5
photoshop1234 [79]

Complete Question:

In ABC, the measure of sides c is 3.9 cm If DEF is a dilation ABC with a scale factor of 2.5 what is the measure of side f

Answer:

f = 9.75

Step-by-step Explanation:

From the information given, a sketch of ∆ABC and ∆DEF with their corresponding sides and angles have been attached below.

∆DEF is a dilation of ∆ABC, which is said to be on a scale factor of 2.5.

The scale factor is a whole number, this implies that ∆DEF is an enlargement of ∆ABC.

Since side c = 3.9 cm, in ∆ABC corresponds to side f, in ∆DEF, therefore, the measure of f would be:

f = measure of c × scale factor

f = 3.9 cm × 2.5

f = 9.75

5 0
3 years ago
How many and what type of solution(s) does the equation have?
Lunna [17]
<span>Let's use the quadratic formula:

2w² -</span><span><span> 20w </span>+ 50 = 0</span>
a = 2  b = -20  c = 50


x = -b +-sq root(b^2 - 4*a*c) / 2*a
x = --20 +-sq root(400 -4*2*50) / 4
x = 20 +-sq root(400 -4*2*50) / 4
x = 20 +-sq root( 0) / 4
x = 20 / 4 =5
I'd say it has one rational solution. 
It does NOT have 2 solutions because the "plus / minus" section = 0.


3 0
3 years ago
Which of the following is equivalent to 5 sqrt 13^3 ? A)13^2.
eimsori [14]
D) 13^(3/5)
This is assuming that the question is asking the √13^3. With the five as the yroot.
3 0
3 years ago
Read 2 more answers
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