Answer:
<h2>L.A. = 384 cm²</h2><h2>S.A. = 640 cm²</h2>
Step-by-step explanation:
Lateral Area:
We have four congruent triangles with base b = 16cm and height h = 12cm.
The formula of an area of a traingle:

Substitute:


Surface Area:

In the base we have the square with side s = 16cm. The formula of an area of a square:

Substitute:


Answer:
first one
Step-by-step explanation:
the sum of (9k-4) =3542
so it will be the first one because
28((5+248)/2)=3542
Answer:
the answer is 7/√2
Step-by-step explanation:
See the picture please
Sorry for the confusion, redoing my answer for you!
Using the points (9/2,1), (-7/2,7)
m=y2−y1 over x2−x1
Substitute in the values of x and y into the equation to find the slope.
m=7−(1) over −72−(92)
simplify
m=−3/4
Use the slope −3/4 and a given point (9/2,1) to substitute for x1 and y1 in the point-slope form y−y1=m(x−x1)
y−(1)=−3/4⋅(x−(9/2))
Rewrite in y=mx+b
solve for y
y=−3x/4+35/8
ill use desmos to graph (y=−3x/4+35/8)