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bagirrra123 [75]
3 years ago
6

Cos2x-cos12x=5 giải phương trình

Mathematics
1 answer:
balandron [24]3 years ago
8 0

Step-by-step explanation:

Giải phương trình: 6sin^2(3x) + cos12x - 14 = 0 - Giải phương trình: ... 4sin^2 (x)-cos2x=2 giải pt ... 0 1 2 3 4 5 6 7 8 9 10.

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In the pet show, 3/5 of the pets are dogs. Of the dogs, 2/5 has long hair. What fraction of the pets are dogs with long hair?
artcher [175]
3/5*(2/5)= .24 = 6/25
3 0
3 years ago
Please help me with this.
xenn [34]

By solving a system of equations, we will see that you must use 6.67 pounds of chocolate-covered almonds.

<h3>How to solve the system of equations?</h3>

First, we need to define the two variables:

  • x = number of pounds of the $9.99 chocolate-covered almonds used.
  • y = number of pounds of the $5.99 chocolate-covered raisins used.

If we mix that, we will get:

x*$9.99 + y*$5.99 = (x + y)*C

That equation means that the cost of the individual elements of the mixture, must be equal to the total cost of the mixture. Where C is the cost of each pound of the mixture, and we know that:

C = $8.75

y = 3

Replacing that, we get:

x*$9.99 + 3*$5.99 = (x + 3)*$8.75

Now we can solve that for x:

x*$9.99 - x*$8.75 = 3*$8.75 - 3*$5.99

x*$1.24 = $8.28

x = $8.28/$1.24 = 6.67

Then you must use 6.67 pounds of the chocolate-covered almonds.

If you want to learn more about systems of equations:

brainly.com/question/13729904

#SPJ1

3 0
2 years ago
PLEASE HELP! <br> Will try to give the brainliest!
dusya [7]

Answer:

L: (15+6x) W: 2

L: (10+4x) W: 3

L: (5+2x) W: 6

Step-by-step explanation:

We don't have any numbers here to do calculations, so probably this is just an exercise in FACTORING. Also to practice that area is length times width.

The area given,

30 + 12x

can be factored several ways to be able to fill in the table.

This kind of factoring is like "un-distributive property" where a common factor can be factored out of the expression. Usually its helpful to factor out the greatest common factor (GCF) but in this case any common factor will do.

Also, unless there are more directions, either factor may be the length or the width.

2(15+6x)

3(10+4x)

6(5+2x)

6 0
3 years ago
An arboretum has a daffodil garden containing 17 different types of daffodils in an area of 345 square feet. The horticulture di
Kryger [21]

Answer:


Step-by-step explanation:

There are 1,400 daffodils in the flower garden covering an area of 345 square feet. So, the area covered by 1 daffodil, the unit rate, is found as shown below.

Now, use the unit rate to determine the area required to have 250 more daffodils as shown below.

Therefore, the area required to add 250 daffodils is approximately 61.6 square feet.




7 0
3 years ago
An arithmetic sequence is represented by the explicit formula A(n) = 2 +(n − 1)(− 5)
Reil [10]

Answer:

a+(n-1)d please do you get it or

8 0
3 years ago
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