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Mrrafil [7]
3 years ago
12

Help me plz !!!!!!!!!!​

Mathematics
2 answers:
Sholpan [36]3 years ago
8 0

Answer:

B. 72•3cm

step by step explanation

circumference of a circle= 2πr

π= 3•142

r= 11•5

2×3•142×11.5

= 72•26

~ 72•3cm

kiruha [24]3 years ago
5 0

Answer:

The answer is b. 72.3cm

Step-by-step explanation:

11.5cm is the radius

To find the circumference multiply the radius by 2 then multiply it again by 3.14

3.14 is the beginning of pi.

e.g - 2 × 3.14 x 11.5

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4 1/2 divided by 2 3/8
Yuki888 [10]
First you make them mixed numbers:
9/2 ÷ 19/8
Then you flip the second fraction around
9/2 ÷ 8/19
Then you change ÷ to ×
9/2 × 8/19
And then multiply across!
72/38 = 1 34/38 = 1 17/19 (the final answer)
Hope this helps!
3 0
3 years ago
Giải pt sin(x^2-4x)=0
Ivenika [448]

Answer:

x=0,2half1?(I'm

not sure)

3 0
3 years ago
• 6x – 15y = 15<br> y=2 x - 1<br> 5
yuradex [85]

Answer:

Slope=  

2.000

0.800

​  

=0.400

x−intercept=  

2 /5

​  

=2.50000

y−intercept=  

−5 /5

​  

=  

−1

1

​  

=−1.00000

Step-by-step explanation:

STEP

1

:

Pulling out like terms

1.1     Pull out like factors :

  6x - 15y - 15  =   3 • (2x - 5y - 5)  

Equation at the end of step

1

:

STEP

2

:

Equations which are never true

2.1      Solve :    3   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Equation of a Straight Line

2.2     Solve   2x-5y-5  = 0

Tiger recognizes that we have here an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK).

"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.

In this formula :

y tells us how far up the line goes

x tells us how far along

m is the Slope or Gradient i.e. how steep the line is

b is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the line properties. We shall now graph the line  2x-5y-5  = 0 and calculate its properties

8 0
4 years ago
Mr benson wrote y=-x+15 as the equation of a line he asked three of his students to write an equation of a non coincident line t
alekssr [168]
The office of a and the one that I have a lot to say I have no clue how I am and
3 0
3 years ago
Jeremy uses 27 inches of board for each birdhouse he builds.
jenyasd209 [6]
4.5; 27 * 6 = 162 and then do 162/36 which is 4.5
8 0
3 years ago
Read 2 more answers
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