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snow_tiger [21]
3 years ago
9

ONLY ANSWER IF YOU KNOW, SHOW WORK

Mathematics
1 answer:
yulyashka [42]3 years ago
6 0

Answer:

hello,

Step-by-step explanation:

cos(3\theta)+cos(4\theta)\\\\=2*cos(\dfrac{4\theta+3\theta}{2} )*cos(\dfrac{4\theta-3\theta}{2} )\\\\\boxed{=2*cos(\dfrac{7\theta}{2} )*cos(\dfrac{\theta}{2} )}

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48 students are girls they make up 60% of the class how many students total
qwelly [4]
For this you would do
48 \div .60
Because 60% is the same as 0.60. And solving a problem like this is the opposite of finding a percent of a number. When you solve this you get 80. So there are 80 students in total.
5 0
3 years ago
Someone please help
KIM [24]

Answer:

Step-by-step explanation:

Exponential function representing final amount with compound interest compounded continuously,

A=Pe^{rt}

Here, A = Final amount

P = principal amount

r = Rate of interest

t = Duration of investment

For P = $9600

r = 6%

A = 2 × 9600 = $19200

By substituting these values in the formula,

19200=9600(e)^{0.06\times t}

2=e^{0.06t}

ln(2)=ln(e^{0.06t})

ln(2) = 0.06t

t = \frac{0.693147}{0.06}

t = 11.55245

t ≈ 11.5525 years

Any amount will get doubled (with the same rate of interest and duration of investment) in the same time.

Therefore, $960000 will get doubled in 11.5525 years.

6 0
3 years ago
What value of a makes the following equation true?<br> a−8a=210
Alex

Answer:

a=-30

Step-by-step explanation:

4 0
3 years ago
What is m ZDFC?<br><br> O45°<br> O 80°<br> O 125°<br> O 135
Law Incorporation [45]
I believe it’s 80 hope it helps
4 0
3 years ago
Read 2 more answers
Sovle the following inequality -3m + 18 &lt; 30​
denis-greek [22]

Answer:

m>-4

Step-by-step explanation: First subtract 18 from both sides, then simplify 30-18, which equals 12. Divide both sides by -3, and flip your sign.

7 0
3 years ago
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