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finlep [7]
2 years ago
7

Can anyone heelp me b

Mathematics
1 answer:
joja [24]2 years ago
8 0

Step-by-step explanation:

b is the correct answer.

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Nick starts with 20 milligrams of a radioactive substance. The amount of the substance decreases by 12 each week for a number of
Gre4nikov [31]

Answer:

what the answer

Step-by-step explanation:

6 0
3 years ago
Factorise the following expressions.<br> a) 6x + 5x + 1<br> b) 6x2 13x + 6
fredd [130]

Answer:

a) 1 1 + 1

b)1 3 + 1 8

Step-by-step explanation:

7 0
2 years ago
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Un auto viaja con una velocidad promedio de 84 kilómetros por hora. ¿En cuánto tiempo viaja 462 kilómetros?
timama [110]

The car takes the time 5.5 hours i.e.5 hours and 30 minutes to travel 462 kilometres when the car travels at average speed of 84 kilometres per hour

Given the average speed of the car is 84 kilometres per hour and the distance to be travelled is 462 kilometres and asked to find the time taken for the journey of 462 kilometres

To calculate the time taken for the journey we use the below-mentioned formula

speed=\frac{distance}{Time taken}

(speed)×(Time taken)=distance

Time taken=\frac{distance}{speed}

Time taken=\frac{462 kilometres}{84KMPH}

Time taken=5.5 hours i.e.5 hours and 30 minutes

As a result, the time spent on the car journey is 5.5 hours

Hence, It takes the time 5hours and 5 minutes to travel 462 kilometres

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5 0
1 year ago
Help please. See photo
olganol [36]

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Option B

6 0
2 years ago
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Given the geometric sequence where a1 = 3 and r = √2 find a9
Zigmanuir [339]

Answer:

a_9=48

Step-by-step explanation:

we are given

sequence is geometric

so, we can use nth term formula

a_n=a_1(r)^{n-1}

we have

a_1=3

r=\sqrt{2}

we have to find a9

so, we can plug n=9

we get

a_9=3(\sqrt{2})^{9-1}

a_9=2^4\cdot \:3

a_9=48

8 0
3 years ago
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