3 years ago

Determine the general solution: sin 2x=-1/2

1 answer:

8 0

as sin (11pi/6) = -1/2

so

2x= 7pi/6+2npi
and

2x= 11pi/6 + 2npi

solve both of them for x and you will get your answer

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3) g(n) = 2n<br> h(n) = n² + 5<br> Find (g + h)(n)

elena55 [62]

(g + h)(n) =
g(n) + h(n) =
2n + n^2 + 5 =
n^2 + 2n + 5 (standard form)

6 0

2 years ago

Determine whether The given segments have the same length. Justify your answer

Semenov [28]

We know the distance formula is

$\sqrt{ (x_{2}-x_{1})^2+ (y_{2}-y_{1})^2 }$

Here A( -4,2) and B(1,4)

So length of AB

= $\sqrt{(1-(-4))^2+(4-2)^2} =\sqrt{5^2+2^2} =\sqrt{29}$

Also C(2,1)

Length of BC

= $\sqrt{(2-1)^2+(-1-4)^2} =\sqrt{1^2+(-5)^2} =\sqrt{26}$

So we can see that length of AB is not equal to length of BC

11.

Now AB = $\sqrt{29}$

Also C(2,-1) & D(4,4)

Length of CD

= $\sqrt{(4-2)^2+(4-(-1)) ^2} =\sqrt{2^2+5^2} =\sqrt{29}$

Yes AB = CD

5 0

3 years ago

What is the answer to this please ??

Assoli18 [71]

The answer is B rhombus

6 0

3 years ago

Read 2 more answers

Urgent!! Math help!! What’s the answer?

Svetllana [295]

Answer:

Shift cos 0.9272

Gives 21.99 degrees near to 22

5 0

3 years ago

Find the area of the figure. RIGHT ANSWERS ONLY

katrin [286]

Answer:

56 yd²

Step-by-step explanation:

You cut up the figure into 2 distinctive rectangles where it looks like one small rectangle is intersecting a larger one.

So you would do

4(4 + 4 + 4) = 4(12) = 48 yd²

2(4) = 8 yd²

Add

8 + 48 = 56

56 yd²

Hope this helps! :)

5 0

1 year ago