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3 years ago

7

does anyone know the questions and answers for FLVS MATH 7 grade DBA 3.00 module??? someone please help instead of telling me to

ask my instructor i can’t!

1 answer:

Mariana [72]3 years ago

6 0

Answer: hi

Step-by-step explanation:

hi

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Can anyone help with 1-10

Alex787 [66]

Answer:

1. E

2. A

3. B

4. AB

5. E

6. D

7. BC

8. CD

9. A

10. C

Step-by-step explanation:

6 0

3 years ago

F(x) = –22 – 9x + 20<br> Find f(9)

Nikolay [14]

Answer: -83

Step-by-step explanation:

f(9)--22+20-9*(9)=-2-81=-83

8 0

2 years ago

Read 2 more answers

A buoy marks a channel for boat navigation and bobs up and down with the motion of the waves. In the given function, represents

Nikitich [7]

Answer:

(4,-2) and (12,-2)

7 0

3 years ago

Hi, teacher I was absent these days and I didn’t understand anything about this lesson and I need help this is not count as a te

motikmotik

Given:

There are given that the cos function:

$cos210^{\circ}=-\frac{\sqrt{3}}{2}$

Explanation:

To find the value, first, we need to use the half-angle formula:

So,

From the half-angle formula:

$cos(\frac{\theta}{2})=\pm\sqrt{\frac{1+cos\theta}{2}}$

Then,

Since 105 degrees is the 2nd quadrant so cosine is negative

Then,

By the formula:

$\begin{gathered} cos(105^{\circ})=cos(\frac{210^{\circ}}{2}) \\ =-\sqrt{\frac{1+cos(210)}{2}} \end{gathered}$

Then,

Put the value of cos210 degrees into the above function:

So,

$\begin{gathered} cos(105^{\circ})=-\sqrt{\frac{1+cos(210)}{2}} \\ cos(105^{\operatorname{\circ}})=-\sqrt{\frac{1-\frac{\sqrt{3}}{2}}{2}} \\ cos(105^{\circ})=-\sqrt{\frac{2-\sqrt{3}}{4}} \\ cos(105^{\circ})=-\frac{\sqrt{2-\sqrt{3}}}{2} \end{gathered}$

Final answer:

Hence, the value of the cos(105) is shown below:

$cos(105^{\operatorname{\circ}})=-\frac{\sqrt{2-\sqrt{3}}}{2}$

4 0

1 year ago

Please help ( the function table)

Norma-Jean [14]

Hope this will help

8 0

3 years ago