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2 years ago

Let f(x) = cos(x). Use Addition or Subtraction Formulas to show the following.

Mathematics

1 answer:

uysha [10]2 years ago

7 0

Answer:

First blank is cos(h)cos(x)

Second blank is sin(x)

Step-by-step explanation:

Look up the identity and apply it here

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A population of size 3,624 grows at a rate of 3% per year, compounded continuously. How big will the population be in 2 years?

rodikova [14]

Answer:

Step-by-step explanation:

The continuous compound formula is

$y=Pe^{rt$ where P is the principle or starting value, r is the growth rate in decimal form, and t is the time in years. For us:

$y=3624e^{(.03)(2)}\\y=3624e^{.06}\\y=3624(1.061836547)\\y=3848.09$

which would probably round to just 3848 people.

8 0

3 years ago

Question 1(Multiple Choice Worth 5 points)

ioda

15/31 is the answer

7 0

3 years ago

N squared minus eight N minus twenty equals 0

erica [24]

Answer:

n = -2 or n = 10

Step-by-step explanation:

n^2 - 8n - 20 = 0

6 0

3 years ago

Tyler does squats and pushups. He wants to increase the number of each type of exercise by 20% by the end of the month. He curre

Semenov [28]

Answer:

Tyler currently does 40 squats

Step-by-step explanation:

Tyler does squats and pushups.

<u>Currently:</u>

Number of pushups = 25

Number of squats = x

Total number = 25 + x

<u>After increase:</u>

Number of pishups $=25\cdot (1+0.2)=1.2\cdot 25=30$

Number of squats $=x\cdot (1+0.2)=1.2x$

Total number $=30+1.2x$

If Tyler meets his goal, he will do a total of 13 more squats and pushups than he does now, thus

$(30+1.2x)-(25+x)=13\\ \\30+1.2x-25-x=13\\ \\1.2x-x=13-30+25\\ \\0.2x=8\\ \\2x=80\\ \\x=40$

6 0

3 years ago

Order of operations (41-3^2)-(4+4)

ladessa [460]

Order is operation is PEMDAS which means Parentheses, Exponents Mulitiplication,division,Addition and Subtraction so you follow the order whether they exist or not.

So (41-3^2)-(4+4)=

41-9-8 = 32-8 = 24

8 0

3 years ago