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3 years ago

Please answer the question in the picture

Mathematics

1 answer:

anygoal [31]3 years ago

3 0

rotational symmetry is 3 as it fits into itself three times. And yes it does tessellate because the angles divide evenly to 360 degrees

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Estimate the quotient for 627 ÷ 9. explain how you found your awnser

Nutka1998 [239]

69.7

Step-by-step explanation:

627 ÷ 9

=69.66666666666666

approximately

69.7

6 0

2 years ago

Read 2 more answers

- What is the area of the figure below? Use 3.14<br> for T.<br> 7 cm<br> 22 cm<br> 18 cm

ziro4ka [17]

Answer: $\Large\boxed{Total~area=586.17~cm^2}$

Step-by-step explanation:

<h2>PART I: Find the area of the triangle</h2>

<u>Given information</u>

$Height=7~cm$

$Base=18~cm$

<u>Given formula</u>

$A=b\times h\times\dfrac{1}{2}$

$A=Area\\b=base\\h=height\\$

<u />

<u>Substitute values into the formula</u>

$A=(7)\times (18)\times\dfrac{1}{2}$

<u>Simplify by multiplication</u>

$A=(7)\times 9$

$A=63~cm^2$

<h2>PART II: Find the area of the rectangle</h2>

<u>Given information</u>

$Height = 18~cm$

$Base=22~cm$

<u>Given formula</u>

$A=b\times h$

$A=Area\\b=base\\h=height\\$

<u />

<u>Substitute values into the formula</u>

$A=(22)\times (18)$

<u>Simplify by multiplication</u>

$A=396~cm^2$

<h2>PART III: Find the area of the half-circle</h2>

<u>Given information</u>

Diameter = 18 cm

<u>Given formula</u>

$A=(\dfrac{d}{2} )^2\times \pi \div2$

$A=Area\\d=diameter$

<u>Substitute values into the formula</u>

$A=(\dfrac{18}{2} )^2\times (3.14) \div2$

<u>Simplify the fraction</u>

$A=(9 )^2\times (3.14) \div2$

<u>Simplify the exponents</u>

$A=81\times (3.14) \div2$

<u>Simplify by multiplication</u>

$A=254.34\div2$

<u>Simplify by division</u>

$A=127.17~cm^2$

<h2>PART IV: Find the total area</h2>

<u>Given formula</u>

$Total~area=Triangle+Rectangle+circle~(half)$

<u>Substitute values into the formula</u>

$Total~area=(63)+(396)+(127.17)$

<u>Simplify by addition</u>

$Total~area=459+(127.17)$

$\Large\boxed{Total~area=586.17~cm^2}$

Hope this helps!! :)

Please let me know if you have any questions

3 0

2 years ago

Amy is eight years older than twice her cousin Alicia’s age. The sum of their ages is less than 32.

Nina [5.8K]

X=8 which is her age
8 is her cousin age
16 is Amy's age and the sum
Is 32

6 0

3 years ago

Read 2 more answers

You roll a number cube twice. Find the probability of the events. Rolling an odd number 2 or a 4.

forsale [732]

Answer: see below

Step-by-step explanation:

If this is a 6 sided die then the only possible roll that isnt an odd, a 2, or a 4 is 6.

The probability of something happening is also the probability of something not happening. So in order to not roll an odd, a 2 or a 4 in two rolls, you have to roll a 6 twice.

P = 1 - (1/6)(1/6) = 1 - (1/36) = (35/36)

5 0

3 years ago

Alex, Bob, and Claudia split 126 cm wire evenly among themselves. They then proceeded to cut their pieces of wire into smaller,

Westkost [7]

<h3>Answer:</h3>

Bob
18 cm

<h3>Step-by-step explanation:</h3>

If Alex cut his wire 18 times, he ended up with 19 equal pieces. He kept 7, so has 7/19 of his 1/3 of the wire.

Bob cut his wire 20 times, so ended up with 21 pieces, of which he kept 9. So he has 9/21 = 3/7 of his 1/3 of the wire.

Claudia kept 1/13 of her 1/3 of the wire, so has the smallest piece.

Bob kept (3/7)·(1/3)·126 cm = 18 cm.

Alex kept (7/19)·(1/3)·126 cm ≈ 15.47 cm.

Bob kept the longest part of the original wire.

3 0

3 years ago