<span>D No, it is not. A straight angle has a measure greater than 90°, but it is not an obtuse angle.
The sentence should say: </span>An obtuse angle is an angle whose measure is greater than 90° but less than 180°
I hope this helps you
3)
(x+6)(x-2)=13.5
x=75
2)
shorter leg=a
longer leg=a+7
hypothenus =2a+1
(2a+1)^2=a^2+(a+7)^2
4a^2+4a+1=a^2+a^2+14a+49
2a^2-10a-48=0
a^2-5a-24=0
a +3
a -8
(a+3)(a-8)=0
a=8
a+7=15
2a+1=17
7/16 is proportional to 35/80 also 14/32 , 21/48 and 28/64 and an infinite number of possibilities
Answer:
x2−10 because the area expression can be rewritten as (x2−10)(x2+10) which equals (x2−10)((x2−10)+20).
Step-by-step explanation:
Step-by-step explanation: The area of the rectangle is , which can be factored as , because it's the difference of two perfect squares. But, we know that , where is the length and is the width.