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3 years ago

What is the answers to this

Mathematics

2 answers:

g100num [7]3 years ago

8 0

This is the answers

Naddika [18.5K]3 years ago

5 0

Divide Each Problem Like It Is On The Paper And Then You Will Get The Answer To Each Question.

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A firework rocket consists of a cone stacked on top of a cylinder, where the radii of the cone and the cylinder are equal. The d

Svet_ta [14]

Answer:

188π in^2

Step-by-step explanation:

Surface area of the rocket = surface area of the cone + surface area of the cylinder

Surface area of a cone = πr(r+h^2+r^2)

r = 8/2 = 4 in

4π( 4 + 3^2 + 4^2) =

4π ( 4 + 9 + 16) = 116π in^2

Surface area of a cylinder = 2πrh+2πr^2

(2 x n x 4 x 5) + (2 x n x 16)= 72π in^2

116 + 72 = 188π in^2

4 0

2 years ago

The equation of a circle is ( x - 3) 2 + ( y + 2) 2 = 25. The point (8, -2) is on the circle.

Shtirlitz [24]

Answer:

x =8 is the equation of the tangent.

Step-by-step explanation:

Here the equation of the given circle is: $(x-3)^{2} + (y+2)^{2} = 25$

Now, comparing it with the general equation of circle: $(x-h)^{2} + (y -k)^{2} = r^2$

we get the central coordinates (h,k) = (3,-2)

So, the slope of the line joining center and (8, -2) = $\frac{-2 -(-2)}{8-3} = \frac{0}{5} = 0$

Since the slope of line = 0, line is parallel to x axis.

Now, as tangent and the line is perpendicular to each other

⇒Slope of the tangent = -1/ slope of the line = $\frac{-1}{0}$

Now, by point slope formula: the equation of the tangent is

(y-y0) = m (x-x0)

or, $(y +2) = \frac{-1}{0} (x -8)$

or x =8 is the equation of the tangent.

8 0

2 years ago

Please help me answer this.

inna [77]

Answer:

D. 4,-1

Step-by-step explanation:

The mathmatical way to solev it is to find the linear equation and plug in the points, but i just looked at the graph to see which point was in the shaded region.

5 0

2 years ago

HELP WILL MARK BRAINLIEST

kobusy [5.1K]

Answer:

(16)(1) => identity property of multiplication

2(3+7) = 2(3) + 2(7) => distributive property

(2+6) + 3 = 2+ (6+3) => associative property

9+0 = 9 => identity property of addition

8 x 4 = 4 x 8 => commutative property

5 0

3 years ago

Which two ratios represent quantities that are proportional

Tpy6a [65]

Answer:

Two quantities have a proportional relationship if they can be expressed in the general form y = kx, where k is the constant of proportionality. In other words, these quantities always maintain the same ratio--that is, when you divide any pair of the two values, you always get the same number k.

8 0

2 years ago

Read 2 more answers