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kari74 [83]
2 years ago
15

A road is 450 metres long . It takes a woman 5 minutes to walk along the road . Work out the average speed of the woman . Give y

our answer in metres per second .​
Mathematics
1 answer:
Masja [62]2 years ago
6 0
Theres 60 seconds in a minute. If it takes her 5 minutes, multiply 60 by 5. you will get 300. then all you will do is divide the meters by 300 seconds. you will get the answer of 1.5 metres per second.
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john is placing cement tiles for a patio in a rectangle surrounding a rectangular fire pit. The fire pit has a width of x ft and
Finger [1]

Answer:

49x + 114

Step-by-step explanation:

[   [ fireplace ] x   = area of 5x^{2}                   ]  x + 6

     5x

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5x + 19

 

(5x + 19) ( x + 6) = 5x^{2} + 19x + 30x + 114

(5x^{2} + 49x + 114)                     -   (5x^{2} )                         =           49x + 114

(area of patio and fireplace) - (area of fireplace)     =       (area of patio only)

4 0
2 years ago
A rectangle has a length of 11.8 centimeters and a width of 8.2 centimeters.
kodGreya [7K]

Answer:

I think it is 96.76 cm

Step-by-step explanation:

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5 0
2 years ago
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DerKrebs [107]

Answer:

a. \ (x-2)(x+i)(x-i)

Step-by-step explanation:

First of all let's notice that (x-i)(x-i)=(x-i)^2 = x^2+2xi-1 \in \mathbb{C} while our original polynomial is real. So we can rule out the even options B and D. At this point, if the polynomial has a factor of (x-\alpha) it means tha \alpha is a zero of the polynomial. Let's check both 2 (for option a) and -2 (for option c)

p(2)=2^3-2(2)^2+2-2= 8-8+2-2=0

p(-2)= (-2)^3-2(-2)^2+(-2)-2=-8-8-2-2=-20

At this point 2 is a zero, and our final factoring is a(x-2)(x+i)(x-i)

7 0
2 years ago
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natima [27]
(5,2)(10,4)
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4 0
3 years ago
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exis [7]

Answer:

-10, -6, 3, 4, 7

Step-by-step explanation:

Hope it helps ^^

4 0
3 years ago
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