(7/2) m is the width and 18m is the length. This is because area is lxw.let w= width and length=11+2wMultiply together, get 2w^2+11w-63=0factor to get (2w-7)(w+9).Find w and get w=7/2 and w=-9Negative rejected because a measurement can't be negative. Finally substitute that into the length equation (11+2w) to get 18m and width is 7/2 m
1 km^2 = 1000m x 1000m = 1 x 10^6 m^2
<span>(145 acres / 247 acres) x 1 x 10^6 m^2 = 5.87 x 10^5 m^2 </span>
<span>5.5 g/m^2 x 5.87 x 10^5 m^2 = 3.23 x 10^6 g </span>
<span>3.23 x 10^6 g x 1kg/10000 g = 3.23 x 10^3 kg</span>
Answer:
I think it's letter A
Step-by-step explanation:
but I'm not sure ok
Answer:
A. 12 centimeters B. 4 centimeters C. 20 centimeters
Step-by-step explanation:
To find area you need to do the Height time the Length.
For A it is 3x4
For B it is 4x1
And for C it is 4x5
You get this equation by multiplying the amount of squares that the Height and Length measured!
Hope this helped!
:DD
Answer:
4.
Step-by-step explanation:
(sec α - tan α)(sec α + tan α) = sec^2 α - tan^2α
But sec^2 α = 1 + tan^2 α so
sec^2 α - tan^2α = 1 + tan^2 α - tan^2α
= 1
so 1 = (sec α - tan α)(sec α + tan α) = 1/4 * x where x is sec α + tan α
1/4 * x = 1
x = 4.