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3 years ago

11

Maria cut a trapezoid out of a large piece of felt. Tha trapezoid has a height of 9 cm and bases of 6 cm and 11 cm. What is the

area of Marcia's felt trapezoid?

2 answers:

stiks02 [169]3 years ago

7 0

The area of Marcia's trapezoid felt is 76.5 sqaured centimeters

alex41 [277]3 years ago

4 0

Answer: 76.5 centimeters

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Circle O has a circumference of approximately 250π ft. Circle O with diameter d is shown. What is the approximate length of the

Vinil7 [7]

Answer:

250 ft

Step-by-step explanation:

circumference of circle 'C' is defined as

C = 2πr

250π = 2πr

r = 250π/2π

r= 125

d = 2r = 2×125 = 250 .

diameter of the given circle is 250 ft

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A 10-foot board is to be cut into 3 pieces. Two of the pieces will be the same length and one piece will be 2 feet longer than t

aleksklad [387]

2x+(x+2)=10 which could be expressed as:

x+x+x+2=10

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4 years ago

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A tile is selected from seven tiles, each labeled with a different letter from the first seven letters of the alphabet.

MArishka [77]

Answer:

Step-by-step explanation:

U= {A,B,C,D,E,F,G}

X = {A, B, C, D}

Y = {A, C, E, F}

a) X or Y = {A, B, C, D} and {A, C, E, F} = {A, B, C, D, E, F}

B) X and Y = {A, B, C, D} or {A, C, E, F} = {A, C}

c) Complement of X = {A,B,C,D,E,F,G} - {A, B, C, D} = {B,D,G}

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3 years ago

An angle in standard position measures pi/2 radians, and P(0, 1) is on the terminal side of the angle. What is the value of the

WARRIOR [948]

Angles could be expressed in degrees or in radians. The relationship between the two could be easily explained by illustrating a circle. A semi-circle has a total angle of 180°. This is equal to a π radians. So if the angle is π/2, in degrees, that would be 180/2 = 90°.

Then, determining the cosine 90° in a calculator would yield an answer of zero.

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4 years ago

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What is the perimeter of a polygon with vertices at (−2, 1) , (−2, 4) , (2, 7) , (6, 4) , and (6, 1)

Marina CMI [18]

Check the picture below.

now, the sides at the bottom, the straight sides, are plain to see how long each is, you can pretty much count the units off the grid.

so, the only ones you need the distance formula or pythagorean theorem is the slanted ones, there are two, and both are equal, so, just get the length of one, and double it up.

$\bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
&({{ 2}}\quad ,&{{ 7}})\quad 
% (c,d)
&({{ 6}}\quad ,&{{ 4}})
\end{array}\qquad 
% distance value
d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}
\\\\\\
d=\sqrt{(6-2)^2+(4-7)^2}\implies d=\sqrt{4^2+(-3)^2}\implies d=\sqrt{16+9}
\\\\\\
d=\sqrt{25}\implies d=5$

double that up, and both slanted sides are 10, the perimeter is all sides summed up.

5 0

3 years ago