3 years ago

This is something to get you'll day up and make it lucky, Post it on Pinterest, or Face book, etc.

Mathematics

2 answers:

tiny-mole [99]3 years ago

6 0

This is cool! have a good day!

Gnom [1K]3 years ago

5 0

Very nice question! Have a good day!

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Question 4 of 11

MAVERICK [17]

This would be A True, hope this helps !

7 0

3 years ago

At the start of a mission, international spy James withdrew $5,000 in Cairo. In Istanbul, he withdrew half of the remaining mone

lord [1]

Answer:

Initial Amount at the start of the mission $=\$20000$

Step-by-step explanation:

Let initial amount $=x$

In Cario James withdrew $\$5000$ .

Remaining Amount $=x-5000$

In Instanbul he with drew half of the remaining amount so half of the remaining amount will be left.

$\frac{1}{2}\times(x-5000)=7500\\\\x-5000=15000\\\\x=20000$

8 0

3 years ago

Complete the identity. sin4x - cos4x = ?

Katyanochek1 [597]

Since sin(2x)=2sinxcosx, we can plug that in to get sin(4x)=2sin(2x)cos(2x)=2*2sinxcosxcos(2x)=4sinxcosxcos(2x). Since cos(2x) = cos^2x-sin^2x, we plug that in. In addition, cos4x=cos^2(2x)-sin^2(2x). Next, since cos^2x=(1+cos(2x))/2 and sin^2x= (1-cos(2x))/2, we plug those in to end up with 4sinxcosxcos(2x)-((1+cos(2x))/2-(1-cos(2x))/2)
=4sinxcosxcos(2x)-(2cos(2x)/2)=4sinxcosxcos(2x)-cos(2x)
=cos(2x)*(4sinxcosx-1). Since sinxcosx=sin(2x), we plug that back in to end up with cos(2x)*(4sin(2x)-1)

4 0

3 years ago

Read 2 more answers

Carlotta subscribes to the HotBurn music service. She can download no more than 11 song files per week. Carlotta has already dow

IceJOKER [234]

That is how I solved that :)