Answer:
Plz don't delete...cuz im tryna help '-'
Step-by-step explanation:
25r²-100=0
25r^2 = 100
cuz the (-) will turn (+) when taken to the other side of the (=) sign
25r^2 = 100
<em>divide both sides by 25</em>
<em>divide both sides by 25 then we get </em>
r^2 = 4
r^2 = 2^2
<em>now take the sqare roo</em><em>t</em><em> of both sides</em>
r = 2
Answer:
The vertex or top is ( 2, -9)
Step-by-step explanation:
Given y = (x - 5 ) * ( x + 1 )
x² - 4x - 5
See attachment.
The vertex of the parabola is the Top.
The vertex of a parabola is the point where the parabola crosses its axis of symmetry.
If the coefficient of the x² term is positive, the vertex will be the lowest point on the graph, the point at the bottom of the “ U ”-shape. If the coefficient of the x² term is negative, the vertex will be the highest point on the graph, the point at the top of the “ U ”-shape.
The standard equation of a parabola is it
y = ax² + bx + c.
But the equation for a parabola can also be written in "vertex form": y = a(x−h)² + k
In this equation, the vertex of the parabola is the point (h,k) = (2, -9)
Answer:
26.13716694
Step-by-step explanation:
the area of a semi cirlce is 1/2(π*r^2) so it was 14.13716694 and then you find the area of the triangle witch is H*B/2 and then add them 3 numbers together whitch is 6+6+14.13716694=26.13716694
Answer:
x<-4
Step-by-step explanation:
Answer:
x=19/3
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
3(x+5)=2(3x−2)
3x+15=6x+−4
3x+15=6x−4
Step 2: Subtract 6x from both sides.
3x+15−6x=6x−4−6x
−3x+15=−4
Step 3: Subtract 15 from both sides.
−3x+15−15=−4−15
−3x=−19
Step 4: Divide both sides by -3.
−3x
−3
=−19−3
x=19/3