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3 years ago

Which pair of functions has identical graphs?

1 answer:

6 0

Both a) y=sin (x+ pi/2) and b) y=-cos(x-pi) has identical graphs.

The +- pi/2 shifts to the LEFT or RIGHT respectively. So the first plot is simply a cosine curve.
The second is a cosine shifted by pi, which gives -cos(x) but we have a negative out front so both (a) and (b) are cosine.

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8/9 to what power equals 64/81

Ierofanga [76]

2nd

Step-by-step explanation:

8/9 to the second power equals to 64/81. Hope this helps!

7 0

3 years ago

Read 2 more answers

2/5× = ?<br><br><br>I don't understand how to answer this

elixir [45]

Answer:

Step-by-step explanation:

2x5 is basically 1x5= 5x2=10

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3 years ago

PLS help!!!!!!!!!!!!!!!!!!!!!!!!!!!!

kati45 [8]

The area of the figure is 104.52 sq inches

<h3>How to determine the area of the figure?</h3>

In the complete figure, we have:

1 Rectangle: Base = 8 in and Height = 6 in

2 semicircles: Diameter = 6 inches

The area of the figure is

Area = Area of rectangle + Sum of Areas of semicircles

This gives

Area = Base * Height + 2 * π(d/2)^2

This gives

Area = 8 * 6+ 2 * 3.14 * (6/2)^2

Evaluate

Area = 104.52

Hence, the area of the figure is 104.52 sq inches

Read more about areas at:

brainly.com/question/24487155

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2 years ago

Subtract 6,139 from 13,486 and express the difference as a Roman Numberal

ASHA 777 [7]

Answer: VIICCCXLVII

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5 0

3 years ago

4. what is the value of x?

Eva8 [605]

Answer:

4. 21

5.120

Step-by-step explanation:

(the answer for #4

I added 5x+15 and 3x-3

and got

8x+12

and because we needed to find the value of x, l did this

8x+12=180

because interior consecutive angles equal 180

and I got 21

(answer for 5)

I then plugged 21 into 5x+15 because angle 1 is equal to it

5(21)+15

I got 120

6 0

3 years ago