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2 years ago

Simplify the expression (x^-2y^-4x^3)^-2

2 answers:

6 0

You would first put the things that can together, together. It would look like this
(2x^1y^-4)^-2. Then you would multiply it all by -2. -4x^-2-2y^4 And thats what it looks like simplified.

Andrew [12]2 years ago

3 0

(x^2 - 4)(x^2 - 4)? Dunno, I just searched it up

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Use the law of cosines to find the value of cos theta. round your answer to two decimal places

REY [17]

Answer:

The correct answer option is B. 0.21.

Step-by-step explanation:

We are to find the value of $cos \theta$ using the law of cosines.

We know that the formula of the cosine rule is given by:

$c ^ 2 = a ^ 2 + b ^ 2 - 2 a b cos C$

So substituting the given values in the above formula:

$10.9 ^ 2 = 5.8 ^ 2 + 10.5 ^ 2 - 2 (5.8) (10.5) cos C$

$118.81=33.64+110.25-121.8cosC$

$118.81 - (33.64+110.25) = -121.8cosC$

$118.81-143.86=-121.8cosC$

$cosC=\frac{-25.05}{-121.8}$

cos C = 0.21

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2 years ago

45/6 simplify into a mixed number

almond37 [142]

Answer:

7 3/6

Step-by-step explanation:

45/6=7 ---- finding what it is divisable by

7*6=42

45-42=3 ----- finding the remainder

7 0

2 years ago

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Which fraction is between 2/3 and 6/7

MrRa [10]

Answer:

For example, 16/21

Step-by-step explanation:

Are there choices?

There is an infinite number of numbers between any two numbers.

2/3 = 14/21

6/7 = 18/21

One example of a fraction between 2/3 and 6/7 is 16/21

16/21 is between 2/3 and 6/7.

5 0

1 year ago

Use the modle to find 2x137

Lena [83]

the answer is 2• 137= 274

3 0

2 years ago

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Help See the picture I’m Giving brainlest

Paraphin [41]

Answer:

y=-x+2

Step-by-step explanation:

its asking y=mx+b

m slope (rise/run) --> rises up 2 for every time it moves over -2 times

so slope is -1

b= y intercept = 2

6 0

2 years ago

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