<h2>189 boys is 54%</h2><h2>x is 46%(100-54)</h2><h2>Cross multiply:</h2><h2>189*46%=54%*x</h2><h2>86.94=0.54x</h2><h2>x=161</h2><h2>189 boys 161 girls</h2><h2>350 altogether</h2><h2>Hope this helps plz hit the crown :D</h2>
Answer:
Proportionality,
Step-by-step explanation:
Answer:
40
Step-by-step explanation:
a^2+b^2=c^2
therefore c^2-b^2=a^2
41x41=1681
9x9=81
1681-81=1600
Sqrt1600=40
Answer:
It represents a circle of radius 2, centered in the origin of the plane xy and transversal to the z-axis in z=-1.
Step-by-step explanation:
The first thing to notice is that

<u>represents a circle of radius 2</u>, with its center in the origin of a plane xy, of cartesians coordinates.
Starting from here, we have to put the coordinate z, to complete the space R³. <em>Then, the cirlce will "live" into the plane xy, where z=-1</em>.
Finally, we have that this region is a circle of radius 2, centered in the origin of the plane xy, and transversal to z=-1.
Answer:
y = 2x + 1
Step-by-step explanation:
Find the slope
( -2 , -3) ( 2 , 5)
m = (y2 - y1 )/(x2 - x1)
x1= -2
y1 = -3
x2 = 2
y2 = 5
m = 5 - (-3)/ ( 2 - (-2)
m = (5 + 3) / ( 2 + 2)
= 8/4
= 2
m = 2
Using the equation of a line
y = mx + c
y - intercept point y
m - slope of the line
x - intercept point x
c - intercept
Substitute m into the equation
y = 2x + c
Substitute any of the two points given into the equation
( 2 ,5 )
x - 2
y - 5
y = 2x + c
5 = 2(2) + c.
5 = 4 + c
c = 5 - 4
c = 1
The equation of the line
y = 2x + 1