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Vilka [71]
3 years ago
7

Density is mass divided by volume. Find the density of an aluminum block with a mass of 35 grams and a volume of 14 cm3?. A) 0.4

g/cm3 B) 2.5 g/cm3 C) 11 g/cm3 D) 490 g/cm3
Mathematics
2 answers:
Troyanec [42]3 years ago
8 0
35 divided by 14= 2.5

The answer is B
nika2105 [10]3 years ago
5 0

Answer:2.5g/cm3

Step-by-step explanation:

Density = M/V

M=35

V=14

M/V= 35/14 =2.5g/cm3

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Tomato as a taste modifier. Miraculin—a protein naturally produced in a rare tropical fruit—can convert a sour taste into a swee
Minchanka [31]

Answer:

a) .033  b) .4678 c) 100

Step-by-step explanation:

Distribution of miraculin produced is normal. To answer question we need to find the z-score of 100g, 110g and 120g miraculin

General formula for z score is given by

z=\frac{X-M}{s} where

  • X is the miraculin produced (120,110,100)
  • M is the mean miraculin produced for a partucilar tomato plant, which is 105.3
  • s is the standard deviation of the sample, which is 8.0

a)

z-score for 120 g miraculin is \frac{120-105.3}{8} =1.8375 then

P(x > 120) = P(z>1.8375) = 0.033

b)

z-score for 110 g miraculin is \frac{110-105.3}{8} = 0.5875

  z-score for 100 g miraculin is \frac{100-105.3}{8} = -0,6625

P(100 < x < 110) = P(x>100) - P(x>110) =0.7462 - 0,2784 = 0.4678

c)

if P(x < a) = 0.25 then corresponding z score for a is -0.6745. From the above formula we can calculate a:

\frac{a-105.3}{8} =-0.6625 which gives a= 100

8 0
3 years ago
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