Answer:
distance = 1.5 miles(approx.)
Step-by-step explanation:
given,
speed of sound = 1130 ft/s
1 ft = 0.3048
1130 ft/s = 0.3048 × 1130 m/s
= 344.424 m/s
time = 7 second
distance = speed × time
distance = 344.424 × 7
distance = 2410.968 m
1 m = 0.0006214 miles
2410.968 m = (0.0006214 × 2410.968) miles
distance = 1.498 miles
distance = 1.5 miles(approx.)
Answer:
isn't it 36cm^2
Step-by-step explanation:
sqaure is even so i think you do 6×6
Range is output for given input
domain is D={-3,0,5}
input -3,0 and 5 for x
f(-3)=(-3)^2-6(-3)+4
f(-3)=9+18+4
f(-3)=31
F(0)=(0)^2-6(0)+4
f(0)=0-0+4
f(0)=4
f(5)=(5)^2-6(5)+4
f(5)=25-30+4
f(5)=-1
Domain={-3,0,5}
Range={31,4,-1}
So legnt=l
width=w
l=-7+3w
l=3w-7
area=66
area=legnth times width or
area=lw
subisutte
area=lw
l=3w-7
66=(3w-7)(w)
66=3w^2-7w
subtrac 66 from both sides
0=3w^2-7w-66
factor
HOW TO
multiply 3 and -66=-198
find what 2 numbers add up to -7 and multiply to get -198
the numbers area 11 and -18
so
3w^2-18w+11w-66=0
factor
(3w^2-18w)+(11w-66)=0
(3w)(w-6)+(11)(w-6)=0
factor using distributive (ab+ac=a(b+c))
(3w+11)(w-6)=0
set them to zero
3w+11=0
subtract 11
3w=-11
legnths cannot be negative so we discard this
w-6=0
add 6
w=6
width=6
legnth=3w-7
length=3(6)-7
legnt=18-7
legnth=11
width=6
legnth=11
Answer:
The graph with solution is shown below.
Step-by-step explanation:
We need to find the 
and 
for given equation.
For , substitute 
Considering inequality sign as equality and simplifying,
, point is 
Similarly,
For , substitute 
We get,
, point is 
We locate this two points on the graph now and join them.
The joining line will be dotted as the inequality has just 'greater than' symbol. The region above the dotted line is the solution to graph.
