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4 years ago

How do you evaluate log2 1/64

1 answer:

OverLord2011 [107]4 years ago

5 0

If it is written as log base 2 (1/64) then you make it equal a question mark (believe me)

then you rewrite to exponential form so you would write it as 2^? = 1/64
and 1-64 is the same as 2^-6, so negative 6 is your answer

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Find the perimeter of the polygon with the vertices U(-2,4), V(3,4) W(3,-4). Round your answer the nearest hundredths

Nastasia [14]

Answer:

22.43

Step-by-step explanation:

three points ==> it's a triangle

so we will just have to calculate the length of each side

U & V has the same y-coordinate, which means UV is a horizontal line ==>

UV = 3 - (-2) = 5

V & W has the same x-coordinate, which means VW is a vertical line ==>

VW = 4 - (-4) = 8

UW is not a horizontal line nor a vertical line, so we will have to calculate it using distance formula

UW = sqrt { [3 - (-2)]^2 + [-4 - 4]^2 } = sqrt{25 + 64} = sqrt(89) ~~ 9.43

so the perimeter of the polygon is UV + VW + UW = 5 + 8 + 9.43 = 22.43

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3 years ago

Help, please.

Ray Of Light [21]

Answer:

the answer is 4 1/4 hours

Step-by-step explanation:

45+(80x2)=205+160=365

80_4=20+365=385

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3 years ago

Read 2 more answers

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Cloud [144]

Answer: im on this one too

Step-by-step explanation:

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3 years ago

Just need to solve number 8 with quadratic formula

choli [55]

$ax^2+bx+c=0\\\\x_1=\dfrac{-b-\sqrt{b^2-4ac}}{2a}\\\\x_2=\dfrac{-b+\sqrt{b^2-4ac}}{2a}$

$2x^2=8x-7\ \ \ \ |-8x\\\\2x^2-8x=-7\ \ \ |+7\\\\2x^2-8x+7=0\\\\a=2;\ b=-8;\ c=7\\\\b^2-4ac=(-8)^2-4\cdot2\cdot7=64-56=8\\\\\sqrt{b^2-4ac}=\sqrt8=\sqrt{4\cdot2}=2\sqrt2$
$x_1=\dfrac{-(-8)-2\sqrt2}{2\cdot2}=\dfrac{4-\sqrt2}{2}\\\\x_2=\dfrac{-(-8)+2\sqrt2}{2\cdot2}=\dfrac{4+\sqrt2}{2}$

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4 years ago

Identify the sample space in the following tree diagram

VashaNatasha [74]

<h3>Answer: Choice B</h3>

There are 2 sides per coin, and 3 flips, so 2^3 = 8 total items in the sample space

HHH
HHT
HTH
THH
HTT
THT
TTH
TTT

Tracing each branch from left to right will help form the 8 different outcomes. For instance, if you go along the upper most path of the upper tree, then you'll get HHH meaning you got 3 heads in a row. The next branch down would be HHT, and so on.

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4 years ago