Area = length x width
length = 3 x width - 5

i.e. 50 = w(3w - 5)
3w^2 - 5w - 50 = 0
(3w + 10)(w - 5) = 0
w = -10/3 or w = 5
but width cannot be negative, hence
width = 5 yd
Length = 3 x 5 - 5 = 15 - 5 = 10 yd

8 0

3 years ago

Pls answer

sukhopar [10]

Answer:

Point R

Step-by-step explanation:

5 0

3 years ago

Which expression is equivalent to (a^-3 b/a^-5 b3)^-3? Assume a=0, b=0.

prohojiy [21]

$Use:\\\\\dfrac{a^n}{a^m}=a^{n-m}\\\\(a^n)^m=a^{nm}\\\\a^{-n}=\dfrac{1}{a^n}\\\\(ab)^n=a^nb^n$

$\left(\dfrac{a^{-3}b}{a^{-5}b^3}\right)^{-3}=\left(a^{-3-(-5)}b^{1-3}\right)^{-3}=\left(a^{-3+5}b^{-2}\right)^{-3}=\left(a^2b^{-2}\right)^{-3}\\\\=(a^2)^{-3}(b^{-2})^{-3}=a^{2(-3)}b^{-2(-3)}=a^{-6}b^6=\dfrac{b^6}{a^6}$

7 0

3 years ago

A line passes through the point (4,7) and has a slope of -5/2.

pshichka [43]

Answer:

$y=-\frac{5}{2} x+17$

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

I'm confused on what to do since I day dream during class, I know it's a bad thing but I have a hard time paying attention​

I'm confused on what to do since I day dream during class, I know it's a bad thing but I have a hard time paying attention