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Post a LessonAnswered on 05 Mar Learn Exponents and Powers
Sadika
Answered on 05 Mar Learn Exponents and Powers
Sadika
Answered on 05 Mar Learn Exponents and Powers
Sadika
Take Class 7 Tuition from the Best Tutors
Answered on 05 Mar Learn Exponents and Powers
Sadika
Answered on 05 Mar Learn Exponents and Powers
Sadika
Answered on 05 Mar Learn Exponents and Powers
Sadika
Take Class 7 Tuition from the Best Tutors
Answered on 05 Mar Learn Exponents and Powers
Sadika
Solution:
To express the number in standard form, we move the decimal point to the right until there's only one non-zero digit to its left. The number of places we move the decimal point determines the power of 10.
0.00001275 m
= 1.275 × 10^(-5) m
So, the size of the plant cell in standard form is 1.275 × 10^(-5) meters.
read lessAnswered on 05 Mar Learn Exponents and Powers
Sadika
Solution:
To find the thickness of 100 sheets, we multiply the thickness of one sheet by 100.
Thickness of 100 sheets = 0.0016 cm * 100
Now, let's perform the calculation:
= 0.0016 cm * 100
= 0.16 cm
Expressing the answer in standard form, we can write it as:
0.16 cm = 1.6 × 10^(-1) cm
So, the thickness of 100 sheets in standard form is 1.6 × 10^(-1) cm.
read lessAnswered on 05 Mar Learn Exponents and Powers
Sadika
Problem:
Express the following numbers as powers of prime factors:
(i) 144
(ii) 225
Solution:
(i) Prime factorization of 144:
144 = 2^4 * 3^2
(ii) Prime factorization of 225:
225 = 3^2 * 5^2
So, the prime factorization of:
(i) 144 is 2^4 * 3^2
(ii) 225 is 3^2 * 5^2
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Answered on 05 Mar Learn Exponents and Powers
Sadika
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