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Answer:
49π
Step-by-step explanation:
The area for the formula of a circle is πr^2, where r is for radius. A radius is half of the diameter, which in this case is 14. 14/2 = 7, so the radius is 7. π(7)^2 = 49π.
Just plug it in:
c & d = c² + d² - 4
2 & 1 = 1² + 2² - 4
= 1 + 4 - 4 = 1
Option C:
Lateral area of the prism = 160 m²
Surface area of the prism = 288 m²
Solution:
Given data:
Length of the prism = 16 m
Width of the prism = 4 m
Height of the prism = 4 m
Lateral area of the prism = perimeter of the base × height
= 2(l + w) × h
= 2(16 + 4) × 4
= 2(20) × 4
= 160
Lateral area of the prism = 160 m²
Surface area of the prism = Lateral area + 2<em>lw</em>
= 160 + 2(16 × 4)
= 160 + 128
= 288
Surface area of the prism = 288 m²
Hence option C is the correct answer.
Lateral area of the prism = 160 m²
Surface area of the prism = 288 m²
Answer:
line r: y=-2x-2
line s: -2x+1
lime t: -2x+3
Step-by-step explanation:
every slope must be -2 since that's stated in the question
to find b in y=mx+b, you substitute 0 for x and the y coordinate when x is 0 into the equation (for example for slope r, when x is 0 then y is -2, so -2=-2(0)+b) then solve for b (-2=-2(0)+b is -2=b)
basically, b is the y component when x is 0