3 years ago

Which expression is equal to (6x + 4y) · 5 using the commutative property?

Mathematics

1 answer:

larisa [96]3 years ago

6 0

I would go with option A for this

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Sin (A) = BC/AB = 21/75= 7/25

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A coin is tossed 11 times. a) How many different outcomes are possible? b) How many different outcomes have exactly 8 heads? c)

larisa86 [58]

Answer:

a) 2048

b)164

c)54

d) 11

Step-by-step explanation:

a) A coin has two faces.

Outcome possible =2^11= 2048

b) 8 heads possible outcome = 11!/8!3! = 3971688/241/920= 164 ways

c)2 heads outcome= 11!/2!8!= 39716800/725760=54

d) 7 heads= 11!/7!6! =39716800/3628800 = 11

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3 years ago

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When solving negative one over five(x − 25) = 7, what is the correct sequence of operations?

Rufina [12.5K]

Add 25 to both sides x-25 +25 =7 +25
x =32

7 0

3 years ago

Find the length of side x. Show steps please!

yawa3891 [41]

Answer:

$\large{x=7.4438\ cm\approx7.4\ cm}$

Step-by-step explanation:

Use tangent:

$tangent=\dfrac{opposite}{adjacent}$

We have:

$\alpha=28^o,\ opposite=x,\ adjacent=14\ cm$

$\tan28^o\approx0.5317$

Substitute:

$\dfrac{x}{14}=0.5317$ <em>multiply both sides by 14</em>

$x=7.4438\ cm$

8 0

3 years ago