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Blizzard [7]
3 years ago
8

Evaluate the number of permutations of 16 things taken 3 at a time.

Mathematics
1 answer:
arlik [135]3 years ago
3 0
I believe its 720 but I'm not 100% sure
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Please help me with this problem! I know three of the answers just need the last one!
Jobisdone [24]

Answer:

There can be a number of correct answers. One of them is the ship has traveled 25 miles in 1 hour.

Step-by-step explanation:

The distance from destination f after x hours for the ship is given by f(x)=120-25x

At the beginning, x=0, f(x)=f(0)=120

After 1 hour, f(x)=f(1)=120-25=95

So in 1 hour, the ship has traveled 120-95=25 miles.


4 0
3 years ago
Read 2 more answers
Write the equation of the line that passes through (3, 4) and (2, –1) in slope-intercept form.
Alona [7]
First find the slope. 4+1/3-2 = 5/1 or 5. Plug in your points to find b. 4=5(3)+b. 4=15+b. b=-11. SO the equation is y=5x-11.
6 0
3 years ago
The diagram shows a sector of a circle radius 10 cm. the angle is 135 degrees
Black_prince [1.1K]

Answer:

The perimeter is 43.6 cm

Step-by-step explanation:

In this question, we are tasked with calculating the perimeter of the sector.

Firstly, we define what a sector is. A sector is part of a circle which is is blinded by two radii and an arc. Hence we say a sector contains two radii.

Thus, to calculate the perimeter of the sector, we need the length of the arc added to 2 * length of the radius

Let’s calculate the length of the arc.

Mathematically, this is theta/360 * 2 * pi * r

where theta is the angle subtended at the middle of the circle which is 135 according to the question, and our radius is 10cm

Thus, we have

135/360 * 2 * 22/7 * 10 = 23.57 cm

Adding two radii to this, we have;

23.57 + 2(10)

= 23.57 + 20 = 43.57 = 43.6 cm to 1 decimal place

5 0
3 years ago
Move point b some more as you move point b the angle formed between ab and cd varies if you want to make an perpendicular to cd
dybincka [34]

Answer:

Following are the response to the given question:

Step-by-step explanation:

Move b a bit further if the angle between cd and ab changes when you move b if you want to make a perpendicular point to cd The angle BEC is 90 ° for making the AB line perpendicular to the line CD to transfer point B to the angle between the two lines.

8 0
3 years ago
Equivalent expression for (x+6)-5+9
Bumek [7]

Answer:

x + 10

Step-by-step explanation:

(x + 6) - 5 + 9 \\  = x + 6 + 4 \\  = x + 10

7 0
3 years ago
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