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kompoz [17]
3 years ago
6

In how many ways can 7 people line if A needs to be first or last and B needs to be in the middle

Mathematics
1 answer:
12345 [234]3 years ago
8 0

Answer:

<em>Assuming person A and person B are part of the 7 people</em>, there are 10 ways the 7 people can line up if A needs to be first or last and B needs to be in the middle.

Step-by-step explanation:

There are 2 places for A (first, last) and 5 places for B (anywhere but first or last). 2 x 5 = 10.

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What is the area of this triangle? A=bh2 17 m² 30 m² 60 m² 120 m² Right triangle with height labeled 12 m, base labeled 5 m, and
vichka [17]

Answer:

30 m²

Step-by-step explanation:

What is the area of this triangle? A=bh/2 17 m² 30 m² 60 m² 120 m² Right triangle with height labeled 12 m, base labeled 5 m, and third side labeled 13 m.

Area of a triangle = bh/2

b = Base = 5m

h = Height = 12m

Area of the triangle = 5m × 12m/2

= 60m²/2

= 30 m²

6 0
2 years ago
. If Owen buys a trampoline for $350.60, and is charged 7% sales tax, how much sales tax does he pay?
LuckyWell [14K]
$24.54 I hope this is the right answer
5 0
3 years ago
If the xy-plane, the graph of y=x^2 and the circle with center (0,1) and radious 3 have how many points of intersection?
PSYCHO15rus [73]
<span>The answer to this question is c, two. The top arc of the circle intersects the y=x^2 as each 'limb' extends into infinity. The part of the circle below the x-axis does not intersect the circle. The y=x^2 curve does not dip below the x-axis, but does extend into infinity on both the negative x-axis and positive x-axis.</span>
4 0
3 years ago
A movie theater charges $10 and 50 cent per ticket and five dollars per bucket of popcorn.You never buy the popcorn because you
cestrela7 [59]

Answer: Yes


Step-by-step explanation:

Yes it is, your ratio would be 10.50:1

$10.50 spent on every one ticket. if you buy more than one, a fraction would still simplify down to 10.50/1.

if you were to buy the popcorn then no it wouldn't be.

7 0
3 years ago
Huey has a fish tank that measures 5 feet long by 2 feet wide and 2 feet tall . The volume of the tank.
iris [78.8K]
This is a simple problem

First, take common sense and apply it here. The problem doesn't specifically tell you what the shape ACTUALLY is, but we can also apply what we know about geometry here, as well as what we know in general. Fish tanks most commonly come in 2 shapes: Square's and Rectangles. Fish tanks are what we call "3D" objects (meaning it's just not flat like a piece of paper", and the shapes are known as "Cubes and Rectangular Prisms".

Well, we know that squares/cubes have to have even sides. The problem states the tank is 5(l) by 2(w) by 2(h). This means it CAN'T be a cube, thus meaning it's a rectangular prism.

Now, to calculate volume, we have to know the formula. For this, the formula for volume is as follows: V=lwh
This means Volume=Length*Width*Height

So, do replace the words with what you know you already have. Let's make a list:
Length=5
Width=2
Height=2

V=lwh-----V=5*2*2

Now, work it out. 5*2=10*2=20, Left to right

Your answer here is V=20

~Hope this helps!
3 0
3 years ago
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