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Fed [463]
3 years ago
11

PLEASE HELP FOR BRAINLEIST ANSWER AND 30 POINTS THANKYOU IN ADVANCED YOU ARE TOO KIND :)

Mathematics
2 answers:
MrRa [10]3 years ago
8 0
So for the first question, they are all polygons except for figure D, because a polygon is a figure with at least three closed lines and angles. 

The second question's picture seems to be a bit cut off, if you would tell me what the other angle measure is, I could definitely help you

The third question the answer would be A, since a regular polygon is one whose angles are the same size. 

stealth61 [152]3 years ago
6 0
It is Figures A,B, and C. Answer D is not a polygon.
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The volume of air inside a rubber ball with radius r can be found using the function . What does represent?
d1i1m1o1n [39]
Since in this problem, we are dealing with a balloon we can now say that the container or the shape we are dealing with is a sphere. The volume of a sphere is V =  \frac{4}{3}  \pi  r^{3} hence the volume is directly proportional to the radius. The volume increase by a factor of r^{3}
7 0
3 years ago
Part B: If a cross section of the rectangular pyramid is cut perpendicular to the base, passing through the top vertex, what wou
Katyanochek1 [597]

Answer:

A triangle.

Step-by-step explanation:

The plane would pass through opposite sloping faces of the pyramid and through the base; the shape formed is a triangle.

6 0
3 years ago
A gerbil cage,priced at $18, is discounted 20% for one week, and then this price is marked up 20%. is the price back to 20% expl
stiks02 [169]
No, it isn't!

first, the discount is 20 percent of 18 dollars, that is 18/5=3.6

this means that during the first week the prize is 18-3.6=14.4

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what is relevant here is what a number is a percent OF
6 0
3 years ago
Help pleaseee :) tyy
STatiana [176]

Answer:

The slope is 4

Step-by-step explanation:

First we pick 2 points (x, y):

(0, -2) and (1, 2)

Then, we use the slope (m) formula:

m = (y2 - y1)/(x2 - x1)

Given:

y2 = 2

y1 = -2

x2 = 1

x1 = 0

Work:

m = (y2 - y1)/(x2 - x1)

m = (2 + 2)/(1 - 0)

m = 4/1

m = 4

8 0
2 years ago
Solve the linear programming problem.
larisa [96]

Answer:

1. Objective function is a maximum at (16,0), Z = 4x+4y = 4(16) + 4(0) = 64

2. Objective function is at a maximum at (5,3), Z=3x+2y=3(5)+2(3)=21

Step-by-step explanation:

1. Maximize: P = 4x +4y

Subject to: 2x + y ≤ 20

x + 2y ≤ 16

x, y ≥ 0

Plot the constraints and the objective function Z, or P=4x+4y)

Push the objective function to the limit permitted by the feasible region to find the maximum.

Answer: Objective function is a maximum at (16,0),

              Z = 4x+4y = 4(16) + 4(0) = 64

2. Maximize P = 3x + 2y

Subject to x + y ≤ 8

2x + y ≤ 13

x ≥ 0, y ≥ 0

Plot the constraints and the objective function Z, or P=3x+2y.

Push the objective function to the limit in the increase + direction permitted by the feasible region to find the maximum intersection.

Answer: Objective function is at a maximum at (5,3),

              Z = 3x+2y = 3(5)+2(3) = 21

7 0
3 years ago
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