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Artyom0805 [142]
3 years ago
9

Anybody know the answer?

Mathematics
2 answers:
Deffense [45]3 years ago
4 0

I think it should end up to be cos + cos

jeka57 [31]3 years ago
3 0

That equation would become :

[cosx*cosx +sinx*sinx], [cos^2(x)+sin^2(x)]

When adding the squares of a sin and cos, the answer is one. The is a trig identity you MUST memorize.

So : cos^2(x)+sin^2(x)=1

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What is the GCF of 20, 36 and 48
nlexa [21]
20= 1,2,4,5,10,20
36=1,2,3,4,6,9,12,18,36
48=1,2,3,4,6,8,12,16,24,48
6 0
3 years ago
123456789 x 125 ÷ 4<br><br> I will mark brainiest!!!!!
erica [24]

Do PEMDAS! Multiply and divide from left to right. 123456789 x 125 is 15432098625, and now we divide by 4, giving us 3858024656.25, but rounded to the nearest whole number (ones) is 3858024656.

Hope this helped!

Nate

5 0
3 years ago
Luis wants to buy a skateboard that usually sells for $79.74. All merchandise is discounted by 12%. What is the total cost of th
eduard

Answer:

75.26

Step-by-step explanation:

Most sales taxes work by not being calculated until cash in some form changes hands. So you take the discount first and then you add the sales tax on the new amount.

Take the discount first

Original cost = 79.74

Discount amount = 79.74 * 12% = 79.74 * 12/100 = 9.57

New price = 79.74 - 9.57 = 70.17

Now you are ready to add on the sales tax

70.17 * 7.25/100 = 5.09

The total is 70.17 + 5.09 = 75.26

7 0
2 years ago
Which of the following makes the most per hour?
Flura [38]
In order they make 20$/hr, 5$/h, 10$/hr, and 30$/hr.  The last one makes the most by far!
5 0
3 years ago
Theo and Kade worked on a school project together. Theo worked on the project 3 fewer hours than Kade did. Altogether, they work
babunello [35]

Let the hours Kade worked = X

Theo would be X - 3 ( 3 less than Kade).

Now you have:

X  + X -3 = 27

Combine like terms:

2x - 3 = 27

Add 3 to each side:

2x = 30

Divide both sides by 2:

x = 15

Kade worked 15 hours.

Theo worked 12 hours.

6 0
3 years ago
Read 2 more answers
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