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VashaNatasha [74]
3 years ago
14

Trigonometry

Mathematics
1 answer:
Klio2033 [76]3 years ago
5 0

Answer:

x = 0, π/3, π, 5π/3, 2π

Step-by-step explanation:

2sinxcosx = sinx

2sinxcosx - sinx = 0

sinx(2cosx - 1) = 0

sinx = 0, 2cosx-1 = 0

sinx = 0

x = 0, π, 2π

cosx = ½

basic angle = π/3

x = π/3, 2π - π/3 = 5π/3

x = 0, π/3, π, 5π/3, 2π

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Marissa got an 85 on her math quiz she got 34 questions correct how many questions are on the quiz
galina1969 [7]
85/100=34/?
85÷2.5=34
100÷2.5=40
34/40=34/? ?=40
there were 40 questions
4 0
3 years ago
According to the rules of significant figures 1.25*200=300<br> will give brainliest pls
charle [14.2K]

Answer:

It's false

Step-by-step explanation:

1.25*200=250 not 300.

6 0
3 years ago
Line AB contains points A(4, 5) and B(9, 7). What is the slope AB
MatroZZZ [7]
For the answer to the question, what is the slope AB if l<span>ine AB contains points A(4, 5) and B(9, 7)?
The</span> answer <span>to </span>this question is 2/5.
I hope my answer helped you. Feel free to ask more questions. Have a nice day!
4 0
3 years ago
Read 2 more answers
A farmer saved $250 in four months. Which unit rate represents the farmer's savings? $1000 per year $1000 per month $750 per yea
Furkat [3]

Answer:

$750 per year

Step-by-step explanation:

The farmer saves $250 in four months.  You need to find out how much he makes in a year.  There are 12 months in a year.  Multiply the amount he saves by 3.

$250 × 3 = $750

The farmer saves $750 per year.

4 0
3 years ago
Determine which numbers the equations need to be multiplied by to form opposite terms of the y-variable. 3x - 1 4 y = 15 2 3 x -
sesenic [268]

In the elimination method, one variable is eliminated from the system of equations to find the value of the other.

To create the opposite terms of the x-variable-

  • The first equation be multiplied by the number 4.
  • Second equation be multiplied by the number -6.

<h3>What is the elimination method?</h3>

To solve the system of equations and find the value of the variables, the elimination method is used.

In this method, one variable is eliminated from the system of equations to find the value of the other.

Given information-

The system of the equation given in the problem is,

\rm 3x-\dfrac{1}{4}y=15

The second equation given in the problem is;

\rm \dfrac{2}{3}x-\dfrac{1}{6}y=6

To eliminate the x term, make the coefficient of x of both equations equal.

It can be done by multiplying the coefficient of x term of the first equation to the second equation and the coefficient of x term of the second equation to the first equation.

The first equation is multiplied by;

\rm 4\times 3x-4\times \dfrac{1}{4}y=15\times 4\\\\12x-y=50

The second equation is multiplied by;

\rm -6 \times \dfrac{2}{3}x- -6 \times\dfrac{1}{6}y= -6 \times6\\\\-4x-y=-36\\\\4x+y=36

Hence, to create the opposite terms of the x-variable-

The first equation is multiplied by the number 4.

The second equation is multiplied by the number -6.

Learn more about the elimination method here;

brainly.com/question/7013345

6 0
2 years ago
Read 2 more answers
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