Answer:
A. 5
Step-by-step explanation:
Given the area of the circle is 25pi. We will divide by pi. Then, the radius of the circle is r= 5.
Answer:
Step-by-step explanation:
8x - 6x + 12 = 3x - 18
2x + 12 = 3x - 18
-x + 12 = -18
-x = -30
x = 30
A. x intercepts are where the graph hits the x axis or where f(x)=0
0=2x^2-x-10
solve
hmm
we can use the ac method
multiply 2 and -10 to get -20
what 2 numbers muliply to get -20 and add to get -1 (the coefint of the x term)
-5 and 4
split the midd into that
0=2x^2+4x-5x-10
group
0=(2x^2+4x)+(-5x-10)
factor
0=2x(x+2)-5(x+2)
undistribute
0=(x+2)(2x-5)
set each to 0
0=x+2
0=-2
0=2x-5
5=2x
5/2=x
x intercepts are at x=-2 and 5/2 or the points (-2,0) and (5/2,0)
B. ok, so for f(x)=ax^2+bx+c
if a>0, then the parabola opens up and the vertex is a minimum
if a<0 then the parabola opens down and the vertex is a max
f(x)=2x^2-x-10
2>0
opoens up
vertex is minimum
ok, the vertex
the x value of the vertex in f(x)=ax^2+bx+c= is -b/(2a)
the y value of the vertex is f(-b/(2a)) so
given
f(x)=2x^2-x-10
a=2
b=-1
-b/2a=-(-1)/(2*2)=1/4
f(1/4)=2(1/4)^2-(1/4)-10
f(1/4)=2(1/16)-1/4-10
f(1/4)=1/8-1/4-10
f(1/4)=1/8-2/8-80/8
f(1/4)=-81/8
so the vertex is (1/4,-81/8) or (0.25,-10.125)
C. graph the x intercepts and the vertex
the vertex is min and the graph goes through the x intercepts
Answer:
Step-by-step explanation:
Alright, lets get started.
Principal amount Joshua borrowed, P = $ 25000
rate of interest, r = 1.5 %
time, t = 2 years
simple interest = 
simple interest = 
Means $ 750 will be the interest of Joshua's loan.
So, Joshua needs to repay the SBA = 
Hence, Joshua will repay $ 25750 to SBA after two years. : Answer
Hope it will help :)
Answer:
Step-by-step explanation:
Length between the bases on a major league diamond = 90 feet
1 feet = 12 inches
90 feet = 90 × 12
= 1080 inches
Length between the bases on a major league baseball diamond on scale drawing = 2.5 inches
