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KiRa [710]
4 years ago
5

Please help me with this question

Mathematics
2 answers:
WITCHER [35]4 years ago
4 0

Answer:

you can't cheat in an online school math test =_=

Step-by-step explanation:

patriot [66]4 years ago
4 0

Answer:

C

Step-by-step explanation:

The addition formula for the tangent ratio is

tan(x + y) = \frac{tanx+tany}{1-tanxtany}

Thus the expansion of

tan(60 + 45) = \frac{tan60+tan45}{1-tan60tan45} → C

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The total body surface area, or BSA, of a human is difficult to calculate. There are various models that estimate BSA based on a
FromTheMoon [43]

Answer:

173 cm

105 kg

Step-by-step explanation:

Given :

BSA= √wh /3600

where w = weight in kg and h = height in cm.

A.)

w = 75 kg ; BSA = 1.9 ; h =?

BSA= √wh /3600

1.9 = √75h /3600

Take the square of both sides

1.9² = 75h /3600

1.9² * 3600 = 75h

12996 = 75h

h = 12996 / 75

h = 173.28 cm

h = 173 cm

B.)

h = 166 ; BSA = 2.2

BSA= √wh /3600

2.2 = √w166 /3600

Take the square of both sides

2.2² = 166w /3600

2.2² * 3600 = 166w

17424 = 166w

w = 17424 / 166

w = 104.96 kg

w = 105 kg

7 0
3 years ago
At an airport, it cost 7 to park for one hour and 5 per hour for each additional hour.Let x represent the number hours parked.wr
kompoz [17]
The cost of parking is an initial cost plus an hourly cost.
The first hour costs $7.
You need a function for the cost of more than 1 hour,
meaning 2, 3, 4, etc. hours.
Each hour after the first hour costs $5.

1 hour: $7
2 hours: $7 + $5                  = 7 + 5 * 1          = 12
3 hours: $7 + $5 + $5          = 7 + 5 * 2          = 17
4 hours: $7 + $5 + $5 + $5  = 7 + 5 * 3          = 22

Notice the pattern above in the middle column.
The number of $5 charges you add is one less than the number of hours.
For 2 hours, you only add one $5 charge.
For 3 hours, you add two $5 charges.

Since the number of hours is x, according to the problem, 1 hour less than the number of hours is x - 1.

The fixed charge is the $7 for the first hour.
Each additional hour is $5, so you multiply 1 less than the number of hours,
x - 1, by 5 and add to 7.

C(x) = 7 + 5(x - 1)

This can be left as it is, or it can be simplified as

C(x) = 7 + 5x - 5

C(x) = 5x + 2

Answer: C(x) = 5x + 2

Check:
For 2 hours: C(2) = 5(2) + 2 = 10 + 2 = 12
For 3 hours: C(3) = 5(3) + 2 = 15 + 2 = 17
For 4 hours: C(3) = 5(4) + 2 = 20 + 2 = 22
Notice that the totals for 2, 3, 4 hours here
are the same as the right column in the table above.
6 0
4 years ago
(50m + 5m+20m) + 10m​
Tanzania [10]

Answer:

85 is the correct answer I think

8 0
3 years ago
Read 2 more answers
What is r if s=c(h+r)<br>​
DerKrebs [107]

Answer:

Step-by-step explanation:

Divide both sides by c

s/c = c*(h + r)/c

s/c = h + r          

Subtract h from both sides

s/c - h = h-h+r

s/c - h = r

3 0
3 years ago
Anyone know this answer??
lara31 [8.8K]

Answer:

two

Step-by-step explanation:

The exact value of sec(60°) sec ( 60 ° ) is 2 .

6 0
3 years ago
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