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erastovalidia [21]
4 years ago
13

Help me plz how many times you can make it

Mathematics
1 answer:
vitfil [10]4 years ago
4 0

The answer is c 40.

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Solve the equation for the interval [0, 2pi). 2sin^2x = sin x
notsponge [240]

Answer:

A

Step-by-step explanation:

We want to solve the equation:

2\sin^2(x)=\sin(x)

For the interval [0, 2π).

First, we can move all the terms to one side. Start off by subtracting sin(x) from both sides:

2\sin^2(x)-\sin(x)=0

We can factor:

\sin(x)\left(2\sin(x)-1\right)=0

By the Zero Product Property:

\sin(x)=0\text{ or } 2\sin(x)-1=0

Solve for each case:

\displaystyle \sin(x)=0\text{ or } \sin(x)=\frac{1}{2}

Use the unit circle to solve:

\displaystyle x=\left\{0, \frac{\pi}{6},\frac{5\pi}{6}, \pi\right\}

Hence, our answer is A.

*Please note that we should not simply divide both sides by sin(x) to acquire 2sin(x) = 1. The problem with the operation is that we are dividing by sin(x), yet we do not know what the value of x is. Thus, one or more values of x may result in sin(x) = 0, and we cannot divide by 0. Hence, we are required to subtract and then factor, unless the question specifically states that sin(x) ≠ 0.

8 0
3 years ago
A restaurant offers salads with 2 types of lettuce, 3 different toppings, and 6 different dressings. How many different salads c
Tresset [83]

Answer: 36 different salads can be ordered.

Step-by-step explanation:

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a linear system with no solution consists of the equation y=4x-3 and a second equation of the form y=mx+b. what can you say abou
Akimi4 [234]
The value of m must be 4 and the value of b must NOT be -3.

No matter what numbers they involve, two equations with the SAME slope (m) and a DIFFERENT y-intercept (b) have no solution.  This is because they form parallel lines, never crossing and therefore never giving a solution.
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Answer:18 days

Step-by-step explanation:

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What is a value of <br>-3+19​
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Answer:

16

Step-by-step explanation:

19-3 =16

6 0
3 years ago
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