Answer:
Step-by-step explanation:
If Q is the midpoint of PR and PQ is 19, that means that QR is also 19 and the total length of PR is 38. Therefore,
PQ + QR = PR and
19 + 19 = 8x + 14 and
38 = 8x + 14 and
24 = 8x so
x = 3
Your choice is C
Answer: y intercept is 2 and slope is 6 or 6/1
Step-by-step explanation:
The number in front of x is always the slope in a y=Mx+b equation and the other number is the y intercept
9514 1404 393
Answer:
B = 6.65 in²
Step-by-step explanation:
The base area (B) is the area of the triangular base of the prism. You already know the sides of that triangle are 3, 5, and 7 inches. The figure shows the altitude to the side length 7 is 1.9 inches. The triangle area formula applies:
A = 1/2bh
A = 1/2(7 in)(1.9 in) = 6.65 in² . . . . area of one triangular base.
Then the area of one base is B = 6.65 in².
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The lateral area is the product of the perimeter and the height:
LA = Ph = 15(12) = 180 . . . . square inches
The total surface area is the sum of the lateral area and the areas of the two bases.
SA = LA + 2B
SA = 180 in² + 2(6.65 in²) = 193.3 in²
I think it is 17 because it is non zero
