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just olya [345]
3 years ago
7

Sin tita= 0.6892.find the value Of tita correct to two decimal places​

Mathematics
1 answer:
Anvisha [2.4K]3 years ago
4 0

Answer:

\theta \approx 6.28n + 2.38,  \quad  n \in \mathbb{Z}

or

\theta \approx 6.28n + 0.76, \quad n \in \mathbb{Z}

Considering \theta \in (0, 2\pi]

\theta \approx 2.38

or

\theta \approx 0.76

Step-by-step explanation:

\sin(\theta)=0.6892

We have:

\sin (x)=a \Longrightarrow x=\arcsin (a)+2\pi n \text{ or } x=\pi -\arcsin (a)+2\pi n \text{ as } n\in \mathbb{Z}

Therefore,

\theta= \arcsin (0.6892)+2\pi n, \quad n \in \mathbb{Z}

or

\theta = \pi -\arcsin (0.6892)+2\pi n, \quad  n\in \mathbb{Z}

---------------------------------

\theta \approx 6.28n + 2.38,  \quad  n \in \mathbb{Z}

or

\theta \approx 6.28n + 0.76, \quad n \in \mathbb{Z}

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Diano4ka-milaya [45]
The answer would be A
3 0
2 years ago
If FG=10 and HJ = 10. Which additional facts guarantee that FGHJ is a parallelogram? check all that apply.
Kamila [148]
Yes, if FJ || GH, and also if FG || HJ, since a parallelogram has two pairs of parallel sides.

now, we know FG = HJ = 10, but if it's a parallelogram, then the other two sides must also have the same length, so chances are FJ = GH = 15.
5 0
3 years ago
Q(x)=4x2-3x3+8x is it a cubic trinomial​
Norma-Jean [14]

Answer:

Yes

Answer:    x = 0

Step-by-step explanation:

Yes it is.

Down is the answer how to solve this equation and the steps.

Step  1  :

Equation at the end of step  1  :

 qx -  (((4 • (x2)) -  3x3) +  8x)  = 0  

Step  2  :

Equation at the end of step  2  :

 qx -  ((22x2 -  3x3) +  8x)  = 0  

Step  3  :

Step  4  :

Pulling out like terms :

4.1     Pull out like factors :

  qx + 3x3 - 4x2 - 8x  =  

 x • (q + 3x2 - 4x - 8)  

Equation at the end of step  4  :

 x • (q + 3x2 - 4x - 8)  = 0  

Step  5  :

Theory - Roots of a product :

5.1    A product of several terms equals zero.  

When a product of two or more terms equals zero, then at least one of the terms must be zero.  

We shall now solve each term = 0 separately  

In other words, we are going to solve as many equations as there are terms in the product  

Any solution of term = 0 solves product = 0 as well.

Solving a Single Variable Equation :

5.2      Solve  :    x = 0  

 Solution is  x = 0

Solving a Single Variable Equation :

5.3     Solve   q+3x2-4x-8  = 0

In this type of equations, having more than one variable (unknown), you have to specify for which variable you want the equation solved.

Answer:  x = 0

Hope this helps.

7 0
3 years ago
Ariel and her friends purchased some drinks and pizza slices at the snack bar. Each drink cost $2, and each pizza slice was $4.
Natali [406]

Answer:

\left\{ \begin{array}{ll} 2d+4p=28 \\ d+p=9 \end{array}

Step-by-step explanation:

We are letting <em>d</em> represent the number of drinks and<em> p</em> represent the number of pizza slices.

We know that each drink <em>d</em> costs <em>$2</em>. We also know that each pizza slice <em>p</em> costs <em>$4</em>. They spent a total of $28. Therefore:

2d+4p=28

We also know that 9 items was purchased all together. So, the total number of drinks <em>d </em>and pizza slices <em>p</em> sum to 9:

d+p=9

Therefore, our system of equations is:

<h3>\left\{ \begin{array}{ll} 2d+4p=28 \\ d+p=9 \end{array}</h3>
5 0
2 years ago
Select all statements that show correct reasoning for finding 15 ÷ 2/9 * Multiply 15 by 2, then divide by 9. Multiply 15 by 9, t
Jet001 [13]

Answer:

Multiply 15 by 9, then divide by 2.

Step-by-step explanation:

We need to solve the given expression.

15\div \dfrac{2}{9}

We know that, a\div \dfrac{b}{c}=a\times \dfrac{c}{b}

We have,

a = 15, b = 2 and c = 9

So,

15\div \dfrac{2}{9}=15\times \dfrac{9}{2}\\\\=\dfrac{15\times 9}{2}\\\\=\dfrac{135}{2}\\\\=67.5

So, the steps are "Multiply 15 by 9, then divide by 2".

8 0
3 years ago
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