Simplify 2m - [n - (m - 2n)].
-3m - n
3m - n
-3m - 3n
3m - 3n

Answers

Answer 1

Answer: you get 2m+m-3n which simplifies to 3m-3n

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Five added to twice Erik's age is the same as 3 times his age minus 2. How old is Erik?

Answers

The answer to that is 7 because 7*3-2 is 19 and 7*2+5 is 19

The graph of a function is given. Find the approximate coordinates of all points of inflection of the function (if any). (Assume a = 6.)

Answers

Final answer:

The given function is a straight line and does not have any points of inflection.

Explanation:

In order to find the points of inflection on the graph of a function, we need to find where the concavity changes. Points of inflection occur where the second derivative of the function is equal to zero or undefined.

For this specific function, we are given only a line graph with a slope of 3 and a y-intercept of 9. Since the slope is constant, the function is linear and does not have any inflection points.

Learn more about Points of inflection here:

brainly.com/question/31582579

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inflection point is where the concavity changes
I circled the guess inflection point
and if a=6 units, then the coordinates are (-6,6)

a cylinder with base are 169π ft^2 and a height twice the radius. what is the lateral area and surface area of the cylinder

Answers

$Area\ of\ base:A_B=169\pi\ ft^2\n\nA_B=\pi r^2\ \ \ (r-radius)\n\n\pi r^2=169\pi\ \ \ /:\pi\n\nr^2=169\n\nr=√(169)\n\nr=13\ (ft)\n\nH=2r\to H=2\cdot13=26\ (ft)$

$lateral\ area:A_L=2\pi rH\n\nA_L=2\pi\cdot13\cdot26=676\pi\ (ft^2)\n\nSurface\ area:A_S=2A_B+A_L\n\nA_S=2\cdot169\pi+676\pi=338\pi+676\pi=1014\pi\ (ft^2)$

Area of base = 169 π

r = √Area = 13 ft

Given, height = 2 x 13 = 26 ft.

Lateral surface area of cylinder = 2πrh = 2 x π x 13 x 26 = 676 π ft²

Total surface area = 2πr(r + h) = 2 x π x 13 x 39 = 1014 π ft²

Thus, lateral surface area is 676 ft² and total surface area is 1014 ft²

Isolating variables abx=cy the variable is x. [please show me how)

Answers

abx = cy

We want to get rid of 'ab', and it is being multiplied to 'x', so we divide it to both sides.

x = (cy)/(ab)

$abx=cy\nx=(cy)/(ab)$

A tent is in the shape of an equilateral triangle. The triangularbase has a length of 4 feet and a height of 3.5 feet. The
rectangular sides and bottom of the tent have the dimensions
of 6 feet by 4 feet. The surface area of the tent is
square feet.

Answers

The surface area of the tent is 86 ft²

Surface area of a triangular prism

SA = area of base + area of top + area of the three sides

Therefore,

The base and top are triangular.

Therefore,

area of base = 1 / 2 bh = 1 / 2 × 4 × 3.5 = 7 ft²

area of the tope = 7 ft²

Therefore, the other three rectangular sides are calculated as follows:

area = 6 × 4 = 24 ft²

Therefore,

Surface area = 7 + 7 + 24 + 24 + 24 = 86 ft²

learn more on triangular prism:brainly.com/question/14795784

If a circle has a circumference of C, what is the area of the circle in terms of C?

Answers

First you have to write down the formula on how to get the circumference of the circle (C = 2pi * Radius) and the Area of the circle which is (A=Pi*Radius^2). In getting the radius you need to transform the formula of the circumference by making the radius to be the unknown variable so it would become(R=C/2pi), after that you need to replace the radius in the formula of the area by the transformed formula of the circumference and you will come up of the formula of (A=Pi(C/2pi)^2).

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