Find the surface area and volume of the second figure

Mathematics

1 answer:

mel-nik [20]3 years ago

8 0

Can I get the measures of the figures? I’d be glad to help :))

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Please help. Show all work:)

Alex787 [66]

Answer:

Step-by-step explanation:

$(3+\sqrt{-16})(6-\sqrt{-64})=(3+4\sqrt{-1})(6-8\sqrt{-1})=2(3+4\sqrt{-1})(3-4\sqrt{-1})\\\\=2(3^2-(4\sqrt{-1})^2)=2(9-(-16))\\\\=2(25)=50$

We make use of the special form for the difference of squares:

(a+b)(a-b) = a²-b²

8 0

3 years ago

Describe the graph of the equation y = 4. Is the equation a function? vertical line; yes horizontal line; no vertical line; no h

Alik [6]

Yes it is a function. It is a horizontal line.

Every point on this line is of the form (x,4) where x can be any number you want. The y coordinate is fixed at 4 and cannot change. Two points on this line are (0,4) and (1,4). The horizontal line goes through 4 on the vertical y axis.

Why is it a function? Because it is impossible to draw a vertical line through more than one point on the graph of y = 4. The graph passes the vertical line test. Put another way, for any x input, there is exactly one y output.

Side Note: y = 4 is the same as y = 0x+4. Note how its in the form y = mx+b
m = 0 is the slope
b = 4 is the y intercept

8 0

4 years ago

I need help I’m bad at this algebra

GenaCL600 [577]

You should get the app Socratic

8 0

3 years ago

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. What is the resulting expression?

siniylev [52]

Factoring the polynomial $4x^4-20x^2-3x^2 + 15$ by grouping means separation of the polynomial in two addends, each of them consists of two addends: