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s2008m [1.1K]
3 years ago
14

Simplify the expression

Mathematics
1 answer:
VLD [36.1K]3 years ago
8 0

Answer:

option A -3r^6 s^14

Step-by-step explanation:

(-3r^4 s^7/r)^2

(-3r^3 s^7)^2

-3r^6 s^14

-TheUnknownScientist

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katrin2010 [14]
To make a square for x²+bx=c, add( \frac{1}{2} b)²on both side
in this case, b is-3/4, half of b is -3/8, and (-3/8)² is 9/64, so you add 9/64 to both side. 
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4 years ago
Choose the function whose graph is given by:
adoni [48]

Answer: y = 0.5cos(x), choice A

The parent function y = cos(x) follows this same basic pattern of the curve shown, but it starts off at (0,1) as its highest point. This graph has its highest point to be half as high, so we multiply by 1/2 or 0.5

3 0
3 years ago
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10)<br>Simplify the expression.<br>6(4x + 12) – 9x - 18 - 4(-6)<br>​
aleksklad [387]

Answer:

\boxed{\bold{15x+78}}

Step By Step Explanation:

Apply Rule - (-a) = a

\bold{6\left(4x+12\right)-9x-18+4\cdot \:6}

Multiply: 4 · 6 = 24

\bold{6\left(4x+12\right)-9x-18+24}

Expand \bold{6\left(4x+12\right): \ 24x+72}

= \bold{24x+72-9x-18+24}

Simplify \bold{24x+72-9x-18+24}

= \bold{15x+78}

━ Mordancy ━

4 0
3 years ago
Can you please help me with 1-12? Thank you
Marysya12 [62]

Answer:

1. 18.84 in

2. 56.52 cm

Step-by-step explanation:

The circumference of a circle is the distance around the circle. Its found using the formula C = πd or C=2πr. The variable d represents the diameter or the distance from one edge of the circle to the other through the cent. The variable r represents the radius of a circle or the distance from one edge to the center. Use the formula by substituting a diameter or radius then simplify.

1. C = πd = π(6) = 3.14(6) = 18.84 in

2. C = 2πr = 2(3.14)(9) = 56.52 cm

6 0
3 years ago
A room is 12cm long, 7cm wide and<br>4cm high find the area <br>the ceiling​
aksik [14]
Hey there!
I think that it safe to say that this room is a rectangular prism. Therefore, the top and bottom (floor and ceiling) have the same area. We see that our floor dimensions are 12 cm long and 7 cm wide. This also applies to the ceiling. Let’s take our two sides and multiply then to find our area.

12(7)=84

Therefore, the area is 84 square centimeters.

I hope that this helps!
5 0
3 years ago
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