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Jlenok [28]
3 years ago
6

I NEED THIS ASAP PLEASE !!! I’ll make you the brainliest

Mathematics
1 answer:
antoniya [11.8K]3 years ago
8 0

Answer:

Part 1: The fractional part of the circumference is 1/4.

Part 2: 100.53 or 100.48 if you use 3.14 as pi

Step-by-step explanation:

Part 1: A circle is 360 degrees and a right angle is 90, so the fractional  part is 90/360 or 1/4.

Part 2: 0.5pi*r is the length of the arc. The radius, or r, is 16 cm, a half of 32. It is 2 * pi * 16 = 32 * pi. 32 * pi = 100.53 or 100.48 if you use 3.14 as pi.

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5/6-2/5 in simplest form
DiKsa [7]

Answer:

13/30

Step-by-step:

First, you find the common denominator, which is 30. For the first fraction, multiply the bottom by five. Since you do that, you have to multiple the top by 5 as well, giving you 25/30. For the second problem, you multiple the top and bottom by six giving you 12/30. 25 minus 12 is 13 so you get 13/30.

7 0
3 years ago
A packet of cream cheese contains 6 equal sectors of cheese one of th e sectors has been removed diameter
romanna [79]

Answer:

sup

Step-by-step explanation:

6 0
2 years ago
Find a quadratic model for the set of values: (-2, -20), (0, -4), (4, -20). Show your work.
Ivahew [28]
Ok... so this question can be solved by using simultaneous equations. 

Use the general from of a parabola 

y = ax^2 + bx + c

you know the value of c, the y-intercept... y = -4

which means the equation is 

y = ax^2 + bx - 4

now use the other 2 points to get 2 equations in 2 unknowns

(-2, -20) just substitute 

-20 = (-2)^2a + (-2)b - 4  ~~~or~~~ -20 = 4a - 2b - 4

this becomes

4a - 2b = -16

now the other equation using (4, -20)

The simplified form is 




6 0
3 years ago
5. Show 3 different ways on how you can multiply two polynomials to get 30x^3.
Mrrafil [7]
10x(3x^2)
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5x(6x^2)
7 0
3 years ago
Natalie put 13 cup of flour in a bowl. Her sister put another 34 cup of flour in the bowl. They need a total of 4 cups of flour
prisoha [69]

Answer:

A. 147

Step-by-step explanation:

7 0
3 years ago
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