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2 years ago

Evaluate 2(4 – 1)^2 plz hurry i’ll give best if right

1 answer:

5 0

Carry out the operation in the brackets and then follow the order of operations and then you can figure out the answer.

18 is the solution.

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The trees at a national park have been increasing in numbers. There were 1,000 trees in the first year that the park started tra

ivanzaharov [21]

The sequence forms a Geometric sequence as the rule to obtain the value for the next term is by ratio

Term 1: 1000
Term 2: 200
Term 3: 40

From term 1 to term 2, there's a decrease by $\frac{1}{5}$
From term 2 to term 3, there's a decrease also by $\frac{1}{5}$

The rule to find the $n^{th}$ term in a sequence is
$n^{th}=a r^{n-1}$ , where $a$ is the first term in the sequence and $r$ is the ratio

So, the formula for the sequence in question is
$n_{th}$ term = $1000( \frac{1}{5} ^{n-1} )$

The sequence is a divergent one. We can always find the value of the next term by dividing the previous term by 5 and if we do that, the value of the next term will get closer to 'zero' but never actually equal to zero.

We can find a partial sum of the sequence using the formula
$S_{∞} = \frac{a}{1-r}$ for -1<r<1
Substituting $a=1000$ and $r= \frac{1}{5}$ we have
$S_{∞}$ = $\frac{1000}{1- \frac{1}{5} }$ = 1250

Hence, the correct option is option number 1

6 0

3 years ago

Geometry help I need the statements and reasons

GenaCL600 [577]

O is the midpoint of Reason: Defintiin of a midpoint

7 0

2 years ago

So lost please help me out with this question

mixas84 [53]

I cannot see the problem

6 0

3 years ago

A gallon of apple juice is $7.A pack of eight 4.23 oz box apple juice is 2.39.Which is a better deal?

VikaD [51]

128 ounces in a gallon
The pack is 33.84 ounces in total

gallon for 7=18 cents per ounce
pack for 2.39 is .07 cents per ounce

So the pack is a better deal

4 0

3 years ago

Read 2 more answers

How do you create and solve equations in one variable given a real–world situation?

WINSTONCH [101]

Step-by-step explanation:

1) first eliminate constant(number without variable) you eliminate constant by doing the inverse operation(if constant is being added, then subtract)(if constant is being subtracted, then add it)

ex: if x+9=32

subtract 9 from both sides to get rid of it

x=23

2) if there is another constant but this constant is being multiplied/divided then do the opposite operation to remove it

you could multiply by 3 on both sides:

x+9=69

x=60

5 0

2 years ago