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wolverine [178]
3 years ago
6

Solve. x-3=-7 I don't understand what I'm supposed to put here

Mathematics
2 answers:
REY [17]3 years ago
8 0
X would equal negative four
butalik [34]3 years ago
3 0
Answer X is equal to -4
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goldenfox [79]
A=[p/4 ] the parenthesis is a ratio.
5 0
3 years 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
Which order pair is not included in the graph of y= 3x+6 the coordinates is (1,9) (10,36) (3,12) (6,18)
serious [3.7K]

Answer:

(3,12)

Step-by-step explanation:

you would put the 12 as y then 3×3=9+6=15 and 12 doesn't equal 15

3 0
2 years ago
Read 2 more answers
-3x+7y=5x+2y can you guys help me find the y value please
PtichkaEL [24]

Answer:

y=8/5 x

Step-by-step explanation:

combine the like terms and solve

take the number multiplying with y on the other side and divide it by a number multiplying with x

6 0
2 years ago
Please show how you got the answer, thanks.
FrozenT [24]

Answer:

15.7 feet

Step-by-step explanation:

What we are looking for here is the perimeter/circumference of the table. The formula for the circumference of a circle is diameter x pi. The diameter is 2x the radius so I did 5 x 3.14, 3.14 being in place for pi. Hope this helps! : )

5 0
2 years ago
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