Someone help pleaseeee
1 answer:
Answer:
1428
Step-by-step explanation:
We first find the surface area of the triangle=base times height/2
height=8
We add 15+6=21, 21 times 8=168/2=84
We have 84 for this triangle, so the other triangle's area would also be 84
Now we find the area of the rectangle on the bottom-30 times 15=450
We then find the area of the other rectangle on the right side of the prism=30 times 17=510
Finally the area of the left-side of the prism=30 times 10=300
For the surface area, we add these all up=84+84+450+510+300=1428
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Answer:
y = 2x - 1
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m =
with (x₁, y₁ ) = A(4, 7) and (x₂, y₂ ) = B(2,3)
m = =
= 2 , thus
y = 2x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (2, 3), then
3 = 4 + c ⇒ c = 3 - 4 = - 1
y = 2x - 1 ← equation of line