Answer:
12.5 cm
Step-by-step explanation:
To find the distance, set up a proportion. A proportion is two equal ratios set equal to each other. We form the ratios by using corresponding values. We write a ratio of
and simplify.
We know
. We also know
.
We set them equal.
To find the width on the map, we cross multiply numerator and denominator.
![x(80)= 1000 (1)\\80x=1000\\\frac{80x}{80} =\frac{1000}{80} \\x=12.5 cm](https://tex.z-dn.net/?f=x%2880%29%3D%201000%20%281%29%5C%5C80x%3D1000%5C%5C%5Cfrac%7B80x%7D%7B80%7D%20%3D%5Cfrac%7B1000%7D%7B80%7D%20%5C%5Cx%3D12.5%20cm)
Answer:
Domain: -infinity < x < infinity
Step-by-step explanation:
This function has no undefined points or constraints.
Answer:
a=6
b= -15
Step-by-step explanation:
third term --> n=3
a(3)^2 + b(3) =9
9a+3b=9
3(3a +b)=9
3a +b=9/3=3
3a + b=3 ------eqn1
sixth term n=6
a(6)^2 +6b =126
36a +6b=126
6(6a+b)=126
6a + b =126/6=21
6a + b=21----------eqn 2
eqn2 - eqn 1
(6a-3a) +(b-b) =21-3
3a=18
a=18/3=6
sub a= 6 into eqn2
6(6)+b=21
36 +b =21
b=21-36= -15
Answer:
A. i believe
Step-by-step explanation:
I wish I could help u with this one