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kumpel [21]
2 years ago
11

Solve for X on number 18

Mathematics
1 answer:
Alina [70]2 years ago
3 0
Answer: 11
6*2 = 12
5*2=10
10= x - 1
x = 11
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The population of a type of local dragonfly can be found using an infinite geometric series where a1 = 65 and the common ratio i
hram777 [196]
In mathematics, number sequencing of the same pattern are called progression. There are three types of progression: arithmetic, harmonic and geometric. The pattern in arithmetic is called common difference, while the pattern in geometric is called common ratio. Harmonic progression is just the reciprocal of the arithmetic sequence.

The common ratio is denoted as r. For values of r<1, the sum of the infinite series is equal to

S∞ = A₁/(1-r), where A1 is the first term of the sequence. Substituting A₁=65 and r=1/6:

S∞ = A₁/(1-r) = 65/(1-1/6)
S∞ = 78


6 0
4 years ago
Suppose that a function​ f(x) is defined for all real values of x except at xequals=c. can anything be said about the existence
Margaret [11]

we are given that

f(x) is defined for all values of x except at x=c

Limit may or may not exist

case-1:

If there is hole at x=c , then limit exist

case-2:

If there is vertical asymptote at x=c , then limit does not exist

Examples:

case-1:

\lim_{x \to c} \frac{x^2-cx}{(x-c)}

We can simplify it

\lim_{x \to c} \frac{x(x-c)}{(x-c)}

=\lim_{x \to c} x

=c

so, we can see that limit exist and it's value defined

case-2:

\lim_{x \to c} \frac{1}{(x-c)}

Left limit is

\lim_{x \to c-} \frac{1}{(x-c)}

=-\infty

Right Limit is

\lim_{x \to c+} \frac{1}{(x-c)}

=+\infty

so, we can see that left limit is not equal to right limit

so, limit does not exist

4 0
3 years ago
Evaluating expressions:<br> 1. x + 9 when x = 3
balu736 [363]

⇨ The numeric value of this expression = 12.

<h3> </h3>
  • To solve this expression, just <u>replace '</u><u>x</u><u>'</u> by the <em>indicated value</em>, being the number 3, and <em>perform</em> the <em>indicated </em>math <em>operations</em>.

{\large \displaystyle \sf {1 \cdot x+9  }}

{\large \displaystyle \sf {x=3  }}

{\large \displaystyle \sf {1 \cdot 3+9  }}

{\large \displaystyle \sf { 3+9  }}

{\orange{\boxed{\boxed{\pink {\large \displaystyle \sf { \ 12 \   }}}}}}\\\\

  • Therefore, we can conclude that, the correct value of this expression = 12.

{\orange{\boxed{\boxed{\pink {\large \displaystyle \sf { \ 12 \   }}}}}}\\\\

<h3><em>Hope this helps! ❤️</em></h3>

4 0
3 years ago
literal equations write formula that describes how much Denise spends at the books sale b equals the cost of each book n equals
igomit [66]

So, the answer is b multiplied by n or

b·n


Because she buys n books, and each book costs b dollars, so n·b gives you the total

6 0
4 years ago
Read 2 more answers
A restaurant has 4 appetizers, 5 entrees and 2 desserts. How many different meal combinations could you order?
vovangra [49]

Step-by-step explanation:

1.) Firstly, you need to count out how many things there are. 4 app, 5 entrees, 2 desserts. This makes 11 different things

2.) for 11 numbers there can be 9 ways for each number for 1st nine places since 0 can't be the fist figure and next two are reciprocated from 10 numbers. Therefore 10!/2!

3.)So 99 combinations have 10!/2! Permutations hence total ways are 99*10!/2!

6 0
4 years ago
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