Step-by-step explanation:
a) unsuitable - the precision should have been about 0.030 kg (about an ounce)
b) unsuitable - the stopwatch should have a precision of 0.001 s
c) just about right, although I wouldn't mind it if its precision is of 0.05 mm
d) unsuitable - color matching requires much finer control so I would go with 1/8 cup precision.
(I) 2/3 is a zero of P(x)
(II) 0 is a zero of P(x)
(III) (-d/c) is a zero of P(x)
<u>Step-by-step explanation:</u>
<h3>(I) P(x) = 3x - 2</h3>
Here, P(x) = 3x - 2
To find the zeroes of P(x)
let P(x) = 0
∴ 3x - 2 = 0
∴ 3x = 2
∴ x = 2/3
Thus, 2/3 is a zero of P(x)
<h3>(II) P(x) = 9x</h3>
Here, P(x) = 9x
To find the zeroes of P(x)
let P(x) = 0
∴ 9x = 0
∴ x = 0/9
∴ x = 0
Thus, 0 is a zero of P(x)
<h3>(III) P(x) = cx + d, c ≠ 0</h3>
Here, P(x) = cx + d
To find the zeroes of P(x)
let P(x) = 0
∴ cx + d = 0
∴ cx = -d
∴ x = (-d/c)
Thus, (-d/c) is a zero of P(x)
<u>-TheUnknownScientist</u>
Answer:
81
Step-by-step explanation:
Answer:
t=100-2x
Step-by-step explanation:
Split it up into 4 separate shapes as shown in the attached picture:
shape 1 and 3 are identical triangles
area = 1/2 x B x H
area = 1/2 x 2 x 2 = 2 square cm each ( there are 2 so 2+2= 4 square cm for shape 1 & 3)
shape 2 is a rectangle area = L x w = 4*2 = 8 square cm
shape 4 is a triangle
area = 1/2 x b x h = 1/2 x 8 x 5.75 = 23 square cm
total area add all the shapes together: 4 + 8 + 23 =
35 square cm