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solong [7]
3 years ago
6

You drink a beverage with 120 mg of caffeine. Each hour, the caffeine in your system decreases by about 12%. How long until you

have 10 mg of caffeine?
Mathematics
1 answer:
Lena [83]3 years ago
7 0

Answer:

10 hours

Step-by-step explanation:

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Given the function, f(x) = square root of (x +5) - 1, choose the correct domain written using interval notation.
andreev551 [17]
Hello : 
f(x) = <span>√x+5)
x+5 </span>≥ 0  ... x <span>≥ -5
</span>domain is : [,-5 ; <span>+ ∞<span> [</span></span>

7 0
3 years ago
Read 2 more answers
Please help! Correct answer only! This assignment is due today.
vichka [17]

Answer:

  0.2601

Step-by-step explanation:

There are 19C16 = 969 ways for Lester to choose 16 of the 19 objects.

There are 12C11 = 12 ways to choose 11 vases, and 7C5 = 21 ways to choose a non-vase, for a total of (12)(21) = 252 ways to choose exactly 11 vases in 16 objects.

So, the probability of interest is ...

  252/969 ≈ 0.2601

_____

nCk = n!/(k!(n-k)!) ... the number of ways to choose k objects from n

5 0
3 years ago
Does the point (-1, 2) make the following equations true? i) y = -2x ii) y = x + 3
lesya [120]

Answer:

i) True

ii) True

Step-by-step explanation:

<u>Given :-</u>

Point (-1, 2)

<u>To Find :</u>

Whether the point is a solution of :

  1. y = -2x
  2. y = x + 3

<u>Solving :-</u>

Substitute the value of the point in each of the equations.

=> y = -2x

=> 2 = -2(-1)

=> 2 = 2 [∴ The point makes it true]

=> y = x + 3

=> 2 = -1 + 3

=> 2 =  2 [∴ The point makes it true]

4 0
2 years ago
Read 2 more answers
The weight of water in a person’s body varies directly as his/her body weight. The body of 170-lb person contains about 119-lb o
NeTakaya

Answer:

119-50 pounds = 69 so 169 pounds -step explanation: blood= weight (k)

Step-by-step explanation:

y=kx

2

4.6 = 170k

finding the constant of variation

3

k= 0.02875

4

equation relates quarts of blood to weight

5

RESULT

4.6 = 170k

y= 0.02875x

y= 0.02875(175)= 5.03125

6 0
3 years ago
Read 2 more answers
Barry bought 212 pounds of lunch meat.
11Alexandr11 [23.1K]

Answer:

barry is a fata-ss

212-110= 102 lbs of meat left over

Barry ate 110 lbs

6 0
3 years ago
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