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3 years ago

11-13 answers plssssss

Mathematics

2 answers:

PtichkaEL [24]3 years ago

7 0

11. The perimeter of A is 16 because 2(5 + 3) = 16.
The perimeter of B is 44 because 2(11+11) = 44.
The perimeter of C is 16 because 2(4 + 4) = 16.
The perimeter of D is 14 because 2(3 + 4) = 14.
That means that the perimeter of B is the most since 44 is more than 16 & 14.

12. Figure C has an area of 108 cm² because 9 x 12 = 108.

13. Figure A has an area of 40 square ft. The main mass is 8 x 4, which is 32.
There are 2 smaller squares on the sides, each 2 x 2, which is 8 for both.
32 + 8 = 40 total square feet.

Hope this helps!

labwork [276]3 years ago

3 0

For 11, Figure B has the greatest perimeter. For 12, Figure C has an area of 108 square centimeters. For 13, Figure A has an area of 40 square feet.

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3 years ago

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oksian1 [2.3K]

Answer:

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8 0

2 years ago

Determine if the table shows a linear or an exponential function

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Answer:

<em>The table shows an exponential function</em>

Step-by-step explanation:

<u>Linear vs Exponential Functions</u>

A linear function is written as:

$y=mx+b$

where m and b are constants.

If a table contains a linear function, then for each pair of ordered pairs (x1,y1) and (x2,y2), the value of m must be constant.

The slope can be calculated as:

$\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

An exponential function is written as:

$y=y_o.r^x$

Where r is the ratio and yo is a constant.

If a table contains an exponential function, for two ordered pairs (x1,y1) and (x2,y2), the value of r must be constant.

The ratio can be calculated as:

$\displaystyle r=\sqrt[x2-x1]{\frac{y2}{y1}}$

Calculate the slope for (0,4) and (1,2):

$\displaystyle m=\frac{2-4}{1-0}=-2$

Calculate the slope for (1,2) and (2,1):

$\displaystyle m=\frac{1-2}{2-1}=-1$

Since the slope is not the same, the function is not linear.

Now calculate the ratio for (0,4) and (1,2)

$\displaystyle r=\sqrt[1-0]{\frac{1}{2}}$

The radical of index 1 is simply equal to its argument:

$\displaystyle r=\frac{1}{2}$

Now calculate the ratio for (0,4) and (2,1)

$\displaystyle r=\sqrt[2-0]{\frac{1}{4}}$

$\displaystyle r=\sqrt{\frac{1}{4}}$

$\displaystyle r=\frac{1}{2}$

Testing other points we'll find the same ratio, thus the table is an exponential function

4 0

3 years ago

Read 2 more answers

PLZ HELP ASAP Geometry help: 2x^2 + 2y^2 - 8x +10y +2=0

Alexxx [7]

Ok so this is conic sectuion
first group x's with x's and y's with y's
then complete the squra with x's and y's

2x^2-8x+2y^2+10y+2=0
2(x^2-4x)+2(y^2+5y)+2=0
take 1/2 of linear coeficient and square
-4/2=-2, (-2)^2=4
5/2=2.5, 2.5^2=6.25
add that and negative inside

2(x^2-4x+4-4)+2(y^2+5y+6.25-6.25)+2=0
factor perfect squares
2((x-2)^2-4)+2((y+2.5)^2-6.25)+2=0
distribute
2(x-2)^2-8+2(y+2.5)^2-12.5+2=0
2(x-2)^2+2(y+2.5)^2-18.5=0
add 18.5 both sides
2(x-2)^2+2(y+2.5)^2=18.5
divide both sides by 2
(x-2)^2+(y+2.5)^2=9.25

that is a circle center (2,-2.5) with radius √9.25

6 0

2 years ago

First come first served brainiest

Alex17521 [72]

Answer:

1.) A diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circle.

2.) 8

3.) 201 square inches

Step-by-step explanation:

8 0

2 years ago