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artcher [175]
3 years ago
8

Find the difference of 18.6 and 5.24.*​

Mathematics
1 answer:
Charra [1.4K]3 years ago
5 0

Answer:

13.36

Step-by-step explanation:

18.60 - 5.24

=>13.36

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Jordan built a scale model of a space shuttle at a scale of 1​ to 200​. If the actual space shuttle is 54 meters long, how long
KATRIN_1 [288]
540 (100 centimeters = 1 meter, so 54 x 100 = 540.)
4 0
1 year ago
A medication with an initial concentration of 1. 5 milligrams per liter is administered to a
lesya [120]

Answer: Exponential decay model:

y

=

x

(

1

−

r

)

t

, half life of tablet is about

2

hours and after

t

=

3

hours , remaining drug on patient's system is

42.875

mg.

Step-by-step explanation: Initial drug

x

=

125

mg ; rate of decay

r

=

30

100

=

0.3

gm/hour

Exponential model:

y

=

x

(

1

−

r

)

t

=

125

(

1

−

0.3

)

t

=

125

⋅

0.7

t

Half life:

y

=

125

2

=

62.5

mg

∴

62.5

=

125

⋅

0.7

t

or

0.7

t

=

1

2

. Taking logarithm on both sides we get ,

t

log

(

0.7

)

=

log

(

0.5

)

∴

t

=

log

(

0.5

)

log

(

0.7

)

≈

1.94

(

2

d

p

)

hour

The half life of tablet is about

2

hours.

After

t

=

3

hours , remaining drug on patient's system is

y

=

125

⋅

0.7

t

=

125

⋅

0.7

3

=

42.875

mg [Ans]

8 0
2 years ago
“If a quadrilateral is a parallelogram, then it is a square”
yuradex [85]
Yes that is true, all opposite sides would be parallel, and all the corners are 90 degrees, then yes it is true
6 0
3 years ago
What is 2/5 + 7/8?<br>a - 9/40<br>b - 9/13<br>c - 50/40<br>d - 51/40​
vichka [17]

Answer:

51/40

Step-by-step explanation:

2/5+7/8

(2*8/5*8)+(7*5/5*8)

16/40+35/40

=>51/40

8 0
3 years ago
Help me plz....................................................................
maksim [4K]

Answer:

A

Step-by-step explanation:

The steps are correct! You want to get x terms on one side, numbers on the other side. You can do that by adding or subtracting both sides of the number or term you want to move.

Please give thanks by clicking the heart button! good luck!

4 0
3 years ago
Read 2 more answers
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