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astraxan [27]
3 years ago
8

Which could be the first step and simplifying this expression? Check all that apply.

Mathematics
1 answer:
Triss [41]3 years ago
7 0

\bf \left( x^3x^{-6} \right)^2\implies \left( x^{3-6} \right)^2\implies \stackrel{1st~Step}{\left( x^{-3} \right)^2}\implies x^{-6}\implies \cfrac{1}{x^6}\\ \qquad \Downarrow\\ \stackrel{\textit{distributing the exponent}}{\left( x^{3\cdot 2}x^{-6\cdot 2} \right)}\\ \qquad \Downarrow\\ \stackrel{1st~Step}{x^6x^{-12}}\\ \qquad \Downarrow\\ x^{6-12}\\ \qquad \Downarrow\\ x^{-6}\\ \qquad \Downarrow\\ \cfrac{1}{x^6}

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Help with this question
laiz [17]

Answer:

A. x = -2

Step-by-step explanation:

2x² + 7x + 6 = 0

2(-2)² + 7(-2) + 6 = ?

8 + -14 + 6 = 0

7 0
2 years ago
A ship sails on a bearing of 020° for 30 km.
zepelin [54]

Answer:

The ship travels approximately 10.261 meters to the East.

Step-by-step explanation:

At first we introduce a graphical description of the statement as an attachment below. Let suppose that bearing is respect to the North-direction, then the change in position in the East direction is modelled by the following Trigonometric formula:

x = r\cdot \sin \theta (1)

Where:

r - Distance travelled by the ship, measured in kilometers.

\theta - Bearing angle, measured in sexagesimal degrees.

x - Distance component in the east direction, measured in kilometers.

If we know that r = 30\,km and \theta = 20^{\circ}, then the distance in the East direction is:

x = (30\,km)\cdot \sin 20^{\circ}

x \approx 10.261\,m

The ship travels approximately 10.261 meters to the East.

7 0
3 years ago
Joanne had $115 to spend at the mall. She spent 23% of that money on a shirt. How much did Joanne spend on the shirt?
-Dominant- [34]
The answer would be $26.45.
What you do is on a calculator: 115 x 23%
Hope this helps :)
3 0
3 years ago
PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.
Natalija [7]
Answer:
GFC and BCF ??

8 0
2 years ago
Square root of 8 times square root of 32
fredd [130]

in decimal form it is 45.2

in exact form it is 32 squareroot 2

5 0
2 years ago
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