Learning Task 1: Translate the verbal sentence to mathematical sentence. Use variable x to represent number. Do this in a separate sheet of paper.
Verbal Sentence
Mathematical sentence
1. The sum of a number and 5 is 12.
2. Twice a number is 54
3. Thrice a number increase by 2 is less than 50.
4. One half the sum of a number and 4 is less than 28.
5. A number increased by one-third of the number is 5.

1/5

step-by-step explanation:

the dice has 6 sides and there is only one 5 in a dice.

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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