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3 years ago

What is the answer to 3n+8<20

Mathematics

2 answers:

NNADVOKAT [17]3 years ago

8 0

Answer:

Step-by-step explanation:

Simplifying

3n + 8 = 20

Reorder the terms:

8 + 3n = 20

Solving

8 + 3n = 20

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-8' to each side of the equation.

8 + -8 + 3n = 20 + -8

Combine like terms: 8 + -8 = 0

0 + 3n = 20 + -8

3n = 20 + -8

Combine like terms: 20 + -8 = 12

3n = 12

Divide each side by '3'.

n = 4

Simplifying

n = 4

I hope this helps!

If you need more help, don't hesitate to ask!

(May I please get brainliest?)

tia_tia [17]3 years ago

7 0

Answer:

n < 4

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Inequality Form: n < 4

Interval Notation: ( − ∞ , 4 )

Hope this helps:)

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The numbers of teams remaining in each round of a single-elimination tennis tournament represent a geometric sequence where an i

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Answer:

$a_n = 128\bigg(\dfrac{1}{2}\bigg)^{n-1}$

Step-by-step explanation:

We are given the following in the question:

The numbers of teams remaining in each round follows a geometric sequence.

Let a be the first the of the geometric sequence and r be the common ration.

The $n^{th}$ term of geometric sequence is given by:

$a_n = ar^{n-1}$

$a_4 = 16 = ar^3\\a_6 = 4 = ar^5$

Dividing the two equations, we get,

$\dfrac{16}{4} = \dfrac{ar^3}{ar^5}\\\\4}=\dfrac{1}{r^2}\\\\\Rightarrow r^2 = \dfrac{1}{4}\\\Rightarrow r = \dfrac{1}{2}$

the first term can be calculated as:

$16=a(\dfrac{1}{2})^3\\\\a = 16\times 6\\a = 128$

Thus, the required geometric sequence is

$a_n = 128\bigg(\dfrac{1}{2}\bigg)^{n-1}$

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Step-by-step explanation:

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Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

yanalaym [24]

Answer:

I am not sure .but i will try

i think so i will give correct answer

perpendicular of triangle is 22-10 cm =12 cm bcz both sides of triangle are equal =22

area of rectangle l×w= 22×17=374

area of triangle =h×b/2 Now we r not having h

lets find it

use pythagorus theorum (h2=P2+b2....2 here is square)

h=22.5cm

22.5×19=427(area of triangle )

374+427=801cm sq

i tried my best dont know its righr of wrong

pls mark me as brainlieast

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3 years ago

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Gennadij [26K]

Answer: try b

Step-by-step explanation:

glad i could help!

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