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4 years ago

8

How do you do this

1 answer:

Eduardwww [97]4 years ago

4 0

let's recall that the sum of all interior angles in a triangle is 180°, so then

$\bf \stackrel{\measuredangle A}{x}+\stackrel{\measuredangle B}{(x+40)}+\stackrel{\measuredangle C}{30} ~~=~~ 180\implies 2x+70=180 \\\\\\ 2x=110\implies x=\cfrac{110}{2}\implies \stackrel{\measuredangle A}{x} = 55$

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What is the equation of a line perpendicular to -x+2=y that intersects the line at (-1.5, 3.5)?

Soloha48 [4]

Answer:

B- y=x+5

Step-by-step explanation:

6 0

3 years ago

Find the general term of {a_n}

Assoli18 [71]

From the given recurrence, it follows that

$a_{n+1} = 2a_n + 1 \\\\ a_{n+1} = 2(2a_{n-1} + 1) = 2^2a_{n-1} + 1 + 2 \\\\ a_{n+1} = 2^2(2a_{n-2}+1) + 1 + 2 = 2^3a_{n-2} + 1 + 2 + 2^2 \\\\ a_{n+1} = 2^3(2a_{n-3} + 1) + 1 + 2 + 2^2 = 2^4a_{n-3} + 1 + 2 + 2^2 + 2^3$

and so on down to the first term,

$a_{n+1} = 2^na_1 + \displaystyle \sum_{k=0}^{n-1}2^k$

(Notice how the exponent on the 2 and the subscript of <em>a</em> in the first term add up to <em>n</em> + 1.)

Denote the remaining sum by <em>S</em> ; then

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Multiply both sides by 2 :

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So, we end up with

$a_{n+1} = 4\cdot2^n + S \\\\ a_{n+1} = 2^2\cdot2^n + 2^n-1 \\\\ a_{n+1} = 2^{n+2} + 2^n - 1 \\\\\implies \boxed{a_n = 2^{n+1} + 2^{n-1} - 1}$

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3 years ago

What us 708,569 rounded to the ten thousands

leonid [27]

Hey! The Answer Is 08000. Hoped i Helped!Please Put Brianlest answerPlzzzzzzzz

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3 years ago

Frank has 27 liters of water. He pours equal amounts for 9 softball players. How much water will each player get?

MA_775_DIABLO [31]

Answer:

d. 3 liters

Step-by-step explanation:

divide the amount of water by the amount of players to get the answer

27 ÷ 9 = 3

6 0

3 years ago

Read 2 more answers

What is one way to find the number of liters in 8 kiloliters?

zhuklara [117]

Answer:

8000 liters

Step-by-step explanation:

There are 1000 liters in a kiloliter, so you would multiply both sides by 8.

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4 years ago