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2 years ago

Bonjour, aidez moi svp .c'est sur la 1er guerre mondiale 1914

Mathematics

1 answer:

Nikitich [7]2 years ago

6 0

WHAT IS THIS LANGUAGE ? PLEASE TRY TO USE ENGLISH !

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A tower made of wooden blocks measures114 feet high. Then a block is added that increases the height of the tower by 8 inches.

WITCHER [35]

It may be 114ft’ 8” or 1376 or 114.7
Explanation: see what options of answers they give you and pick one :)

Hope this helps! ٩( ᐛ )و

8 0

2 years ago

The half-life of the radioactive element unobtanium-43 is 10 seconds. If 48 grams of unobtanium-43 are initially present, how ma

natka813 [3]

Answer:

At time, 10 seconds, the mass remaining is 24 grams

At time, 20 seconds, the mass remaining is 12 grams

At time, 30 seconds, the mass remaining is 6 grams

At time, 40 seconds, the mass remaining is 3 grams

At time, 50 seconds, the mass remaining is 1.5 grams

Step-by-step explanation:

Given;

initial mass of the radioactive element = 48 grams

half life, t = 10 seconds

time of decay (s) remaining mass of the radioactive element

0 ------------------------------------------------- 48 grams

10------------------------------------------------- 24 grams

20 ------------------------------------------------- 12 grams

30 -------------------------------------------------- 6 grams

40 --------------------------------------------------- 3 grams

50 ----------------------------------------------------- 1.5 grams

60------------------------------------------------------0.75 grams

Thus;

At time, 10 seconds, the mass remaining is 24 grams

At time, 20 seconds, the mass remaining is 12 grams

At time, 30 seconds, the mass remaining is 6 grams

At time, 40 seconds, the mass remaining is 3 grams

At time, 50 seconds, the mass remaining is 1.5 grams

7 0

3 years ago

Zak and Ryan earn $60 per week for delivering pizzas. Zak worked for x weeks and earned an additional total bonus of $25. Ryan w

Inessa05 [86]

Answer:

60x + 25 + 60y

Step-by-step explanation:

60 times x plus 60 times y plus 25

4 0

3 years ago

Read 2 more answers

How much money will there be in an account at the end of 10 years if $3000 is deposited at 3% interest compounded

BaLLatris [955]

Answer:

$4040.57

Step-by-step explanation:

A=P(1+(r/n))^nt

P = Principal = 3000

r = rate = 0.03

n = no. times payed each year = 2

t = years = 10

A = 3000(1 + (0.03/2))^(2x10)

A = 3000(1.015)^20

A = 4040.57 (2.d.p)

Hope this helped!

6 0

3 years ago

Plz help me with this 245 x 4 =

const2013 [10]

Answer:

980

Explanation step by step:

The factors are arranged and multiplied

$\: 245 \\ \: \: \:\times 4 \\ - - - \\9 \: 8 \: 0$

6 0

3 years ago