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Sauron [17]
3 years ago
14

Which answer choice is equivalent to the expression below?

Mathematics
2 answers:
Sloan [31]3 years ago
5 0

Answer: A. -17-9n

Step-by-step explanation:

ololo11 [35]3 years ago
3 0

Answer:

Final answer is choice a). -17-9n

Step-by-step explanation:

Given expression is

-7\left(2+n\right)+\frac{1}{3}\left(-9-6n\right)

=-14-7n+\frac{1}{3}\left(-9-6n\right)

=-14-7n-3-2n

=

=-14-3-7n-2n

=-17-9n

Hence final answer is choice a). -17-9n


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The cheetah is the fastest land animal, capiable of attaining a speed of 110 km/h. In August 2009 , the world record for the men
lozanna [386]

Answer:

About 3 times faster

Step-by-step explanation:

Cheetah's speed = 110 km / hr

World 100m sprint record :

Speed of sprinter :

Distance / time

100 m / 9.58s

= 10.438413 m/s

Convert Cheetah's speed to m/s

110 km/hr = (110 * 1000)m / (60 * 60 s)

= 110000 m / 3600 s

= 30.55555 m/s

Number of times cheetah is faster than sprinter :

30.55555 m/s ÷ 10.438413 m/s

= 2.927 times

5 0
3 years ago
Quadrilateral A'B'C'D' is the image of quadrilateral ABCD under a rotation about the origin, (0,0). y 71 c 3+ 2+ 2 1 2 3 4 5 6 7
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2 years ago
If SA=1/2lp+B, find p<br><br> What is the formula for finding p?
Ilia_Sergeevich [38]
<span>You must get p by itself, so first subtract B from both sides: SA-B=1/2lp. Then multiply both sides by 2, which cancels out the 1/2: 2SA=lp. Then divide both sides by l: (2SA)/l=p.</span>
8 0
3 years ago
Bred has to paint a wall with 8 horizontal stripes. He has enough paint only for 5 blue, 5 red and 5 white stripes. If he can us
Kay [80]

Answer:

336

Step-by-step explanation:

Required Formulas:-

1. Number of ways to select x things out of n things = ⁿCₓ

2. Number of ways to arrange n things when a things and b things are similar = n!/(a!*b!)

Since we have to choose 8 colors and we are having 3 different colors, it is only possible when we select 2 different colors (e.g. 5 red and 3 blue). To find all possible ways we will have to find all unique arrangements of selected color.

Using formula (1), number of ways to select 2 colors out of given 3 colors = ³C₂ = 3

Using formula (2), finding all unique arrangements when 5 stripes are of one color and 3 stripes are of second color = 8!/(3!*5!) = 56

Suppose, we can choose 5 stripes from red color and 3 stripes from blue color or 5 strips from blue color and 3 strips from red color. So there are 2 possibilities of arranging every 2 colors we choose .

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6 0
3 years ago
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Aleksandr-060686 [28]

Answer:

7/8 and 14/16

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