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Andreas93 [3]
1 year ago
13

(Please answer! :) )

Mathematics
1 answer:
Anna [14]1 year ago
6 0

Answer:

ok

Step-by-step explanation:

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A third of a number 9 (number phrase)
lakkis [162]

Answer:

A third of 9 is 3.

Step-by-step explanation:

9 / 3 = 3.

3 * 3 = 9

8 0
3 years ago
Find the area of the shaded regions below. Give your answer as a completely simplified exact value in terms of π (no approximati
Lera25 [3.4K]

Answer:

  (36π -72) cm²

Step-by-step explanation:

The area of a segment that subtends arc α (in radians) is given by ...

  A = (1/2)r²·(α - sin(α))

Here, you have r = 12 cm and α = π/2 radians, so the area of the segment is ...

  A = (1/2)(12 cm)²·(π/2 -1) = (36π -72) cm²

4 0
3 years ago
Read 2 more answers
Factorise the following:<br> c) x - 3x + 2
fenix001 [56]

Answer:

2 ( - x + 2 )

Step-by-step explanation:

x - 3x + 2 = - 2x + 2

- 2x = 2 * - x

2 = 2 * 1

- 2x + 2 = 2 ( - x + 2 )

Hence factorized.

8 0
2 years ago
Read 2 more answers
The equation below can be used to find the length of a foot or forearm when you know one or the other. (length of the foot) = 0.
3241004551 [841]
This is child's play. 

So, basically:
Y=Length of foot
X= Length of your forearm. 
This is simple. Your equation is Y=0.860x + 3.302
So, if you have a forearm (x) that is 17 inches long, then plug in x as 17. This leaves you to evaluate for Y.
New equation: Y=0.860(17) +3.302
Work it out, you get: Y=14.62 + 3.302
Work that out, you get: Y= 17.922 inches long. 
And of course, Y is the foot.

So, your answer: If the forearm is 17 inches long, then the foot is 17.922 inches long. Simple.

So, part 2:
Rate of change. Well, you need slope then, because that's the same thing.
Y=mx+b, Where m=slope
Your answer turns to be 0.860 inches per length of arm, for rate of change.

Skipping the data, as that's only something you'd know.

Yes, it is indeed a function. There can't be any exponents greater than 1 on the placeholder, and it's obviously not a straight line if you plug it in. 

So yeah, it's a function.

~Hope this helps m8







5 0
3 years ago
Read 2 more answers
PLEASE HELP (WILL NAME BRAINLYEST)
ira [324]

Answer:

4.04 x 10^0 people/km^2 (x 10^0 is fairly redundant but if the answer is required in standard form then include it)

Step-by-step explanation:

Population Density = Population/Area

= 3.11 x 10^7 / 7.69 x 10^6

= 31,100,000 / 7,690,000

= 3110 / 769

= 4.04

= 4.04 x 10^0

7 0
3 years ago
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