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Bad White [126]
3 years ago
9

Find all the real fourth roots of 256. 4 -8 and 8 8 -4 and 4

Mathematics
1 answer:
vredina [299]3 years ago
3 0
256 = 16^2.  In turn, 16=4^2.

The 4th roots are {4, 4, -4 and -4}.

Check for yourself:  Does 4^4= 256?  does (-4)^4 = 256?
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HELP!!! ASAP
Mumz [18]
The answer is 12 percent change
3 0
2 years ago
What is the directrix of the parabola defined by `(1)/(4)(y + 3) = (x − 2)^2`?
Sauron [17]

The directrix of the parabola is y =  \frac {-49}{16}

<h3>How to determine the equation of the directrix?</h3>

The parabola equation is given as:

\frac 14(y + 3) = (x -2)^2

A parabola is represented as:

4p(y - k) =(x -h)^2

By comparing both equations, we have:

4p = 1/4 ==> p = 1/16

-k= 3 ==> k = -3

The directrix is represented as:

y = k - p

So, we have:

y = -3 - \frac 1{16}

Take the LCM

y =  \frac {-16 * 3- 1}{16}

Evaluate

y =  \frac {-49}{16}

Hence, the directrix of the parabola is y =  \frac {-49}{16}

Read more about parabola at:

brainly.com/question/1480401

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4 0
1 year ago
A line passes through the point (-2, 3) and has a slope of -2. What is the equation of the line?
Mrrafil [7]

Answer:

y = -2x -1

Step-by-step explanation:

slope intercept form is y = mx +b

m = slope, b = y intercept

point is given as ordered pair (x,y)

plug in slope into y=......

y= -2x+b

plug in the point

3 = -2 * (-2) + b

3= 4 +b subtract 4 on each side

b = -1

y = -2x -1

8 0
2 years ago
A strawberry weighs about 1 out of ten an orange. if an orange weighs about 67 grams, about how many grams does a strawberry wei
andre [41]

Answer:

16.75 g

Step-by-step explanation:

Orange's weight = 67 g

Strawberry's weight

= ¼ of the weight of orange

= ¼ × weight of orange

= ¼ × 67 g

= 67 g/4

= 16.75 g

8 0
2 years ago
The room is a cube with edge length 11 feet including the ceiling in the floor how much surface area must be painted
Xelga [282]
Answer: 726cm squared

Surface area is the area of all the faces added together.

If the area of one face is 11x11=121

Because it is a cube and it has six faces with the same surface area we do 121x6=726 to give us the total surface area.

6 0
2 years ago
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