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labwork [276]
3 years ago
5

Please answer this question I will give you brainliest!​

Mathematics
1 answer:
romanna [79]3 years ago
4 0

circumference of circle= 2x3.14r

1) radius is 9

2x3.14x9

18x3.14= 56.52

2) radius is 8

2x3.14x8

16x3.14= 50.24

3) radius is 5

2x3.14x5

10x3.14= 31.4

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#3 Can someone please help me with these questions!!!!
rosijanka [135]

Answer:

Option A 90,68

m\angle 1=90^o

m\angle 2=68^o

Step-by-step explanation:

see the attached figure to better understand the problem

The figure shows a kite

we know that

A kite properties include

1) two pairs of consecutive, congruent sides

2) congruent non-vertex angles

3) perpendicular diagonals

Find the measure of angle 1

we have that

m\angle 1=90^o ----> by the diagonals are perpendicular

Find the measure of angle 2

we know that

triangle AEB is congruent with triangle CEB

so

m\angle EAB=m\angle ECB=m\angle 2

In the right triangle EAB

m\angle EAB+22^o=90^o ----> by complementary angles in a right triangle

so

m\angle EAB=90^o-22^o=68^o

therefore

m\angle 2=68^o

7 0
3 years ago
The regression equation y = -0.414x + 106.55 approximates the percent of people in an audience who finish watching a documentary
Ivahew [28]

The answer is A 67%.. went over this answer in class so it is right.

5 0
3 years ago
5.) Find the area of the triangle in bold.
trapecia [35]

Answer:

the answer is 0.98

Step-by-step explanation:

if it not correct plz correct me

4 0
2 years ago
Read 2 more answers
Identity the zero of the function y= x (x-4)(x+2)
yulyashka [42]

Answer:

- 2, 0 or 4


Step-by-step explanation:

y = x(x - 4)(x + 2)

x' = 0


x - 4 = 0

x" = 4


x + 2 = 0

x"' = - 2


I hope I helped you.

4 0
3 years ago
I need help... Can someone help.<br> If x equals 7, what does y equal?<br> x = 7 y = ?<br> 6x = 7y
klemol [59]
Y=6. you would replace x with 7 in the equation.
6(7) = 7y
42=7y
6=y
8 0
3 years ago
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