Answer:
D. 296 square inches
Step-by-step explanation:
The surface area of a prism is the total area of all its faces.
A triangular prism has three rectangular faces and two triangular faces.
As all 3 sides of the triangle face of this prism are equal, each of the 3 rectangular faces are also equal in area.
<u>Formulae</u>
- Area of a triangle = 1/2 x base x height
- Area of a rectangle = width x length
From inspection of the diagram:
⇒ Area of a triangle = 1/2 x 8 x 7 = 28 in²
⇒ Area of a rectangle = 8 x 10 = 80 in²
<u>Total surface area</u>
Total surface area = 3 rectangle areas + 2 triangle areas
= (3 x 80) + (2 x 28)
= 296 in²
d=16
d-10-(-2+1/2*d)=0
simplify
(d-10)-(-2+(1/2*d))=0
rewrite as an equivalent fraction
(using 2 as the denominator)
-2=-2/1=-2*2/2
adding fractions with common denominator
-2*2+d/2=d=4/2
(d-10)-(d-4)/2=0
rewrite the whole as a fraction using 2 as your denominator
d-10= d-10/1= (d-10)*2/2
d-16/2=0
get rid of the denominator
d=16/2*2=0*2
solve
d-16=0
d=16
Answer:
a
Step-by-step explanation:
Answer:
Total monthly cost (x) = $39 + ($0.07/min)x
Step-by-step explanation:
The y-intercept is $39. The slope is ($0.07/minute)x, where x is the number of talk minutes. Thus:
Total monthly cost (x) = $39 + ($0.07/min)x, where x is the number of talk minutes.
