From everyday questions to specialized queries, IDNLearn.com has the answers. Discover thorough and trustworthy answers from our community of knowledgeable professionals, tailored to meet your specific needs.

Change the following numbers in scientific notation into standard form:

(a) [tex]$2.34 \times 10^5$[/tex]

(b) [tex]$4.56 \times 10^8$[/tex]

(c) [tex]$3.14 \times 10^9$[/tex]

(d) [tex]$6.02 \times 10^{23}$[/tex]

(e) [tex]$7.9 \times 10^{-3}$[/tex]

(f) [tex]$9.87 \times 10^{-4}$[/tex]

(g) [tex]$8.62 \times 10^{-7}$[/tex]

(h) [tex]$3.45 \times 10^{-8}$[/tex]


Sagot :

Certainly! Let's convert each number from scientific notation to standard form.

(a) [tex]\( 2.34 \times 10^5 \)[/tex]

To convert [tex]\( 2.34 \times 10^5 \)[/tex], we move the decimal point 5 places to the right:
[tex]\[ 2.34 \times 10^5 = 234000.0 \][/tex]

(b) [tex]\( 4.56 \times 10^8 \)[/tex]

To convert [tex]\( 4.56 \times 10^8 \)[/tex], we move the decimal point 8 places to the right:
[tex]\[ 4.56 \times 10^8 = 455999999.99999994 \][/tex] (or approximately [tex]\( 456000000 \)[/tex])

(c) [tex]\( 3.14 \times 10^9 \)[/tex]

To convert [tex]\( 3.14 \times 10^9 \)[/tex], we move the decimal point 9 places to the right:
[tex]\[ 3.14 \times 10^9 = 3140000000.0 \][/tex]

(e) [tex]\( 6.02 \times 10^{23} \)[/tex]

To convert [tex]\( 6.02 \times 10^{23} \)[/tex], we move the decimal point 23 places to the right:
[tex]\[ 6.02 \times 10^{23} = 6.019999999999999 \times 10^{23} \][/tex] (approximately [tex]\( 6.02 \times 10^{23} \)[/tex])

(f) [tex]\( 7.9 \times 10^{-3} \)[/tex]

To convert [tex]\( 7.9 \times 10^{-3} \)[/tex], we move the decimal point 3 places to the left:
[tex]\[ 7.9 \times 10^{-3} = 0.0079 \][/tex]

(g) [tex]\( 9.87 \times 10^{-4} \)[/tex]

To convert [tex]\( 9.87 \times 10^{-4} \)[/tex], we move the decimal point 4 places to the left:
[tex]\[ 9.87 \times 10^{-4} = 0.000987 \][/tex]

(j) [tex]\( 8.62 \times 10^{-7} \)[/tex]

To convert [tex]\( 8.62 \times 10^{-7} \)[/tex], we move the decimal point 7 places to the left:
[tex]\[ 8.62 \times 10^{-7} = 8.619999999999999 \times 10^{-7} \][/tex] (approximately [tex]\( 0.000000862 \)[/tex])

(k) [tex]\( 3.45 \times 10^{-8} \)[/tex]

To convert [tex]\( 3.45 \times 10^{-8} \)[/tex], we move the decimal point 8 places to the left:
[tex]\[ 3.45 \times 10^{-8} = 3.4500000000000004 \times 10^{-8} \][/tex] (approximately [tex]\( 0.0000000345 \)[/tex])

Thus, the standard form of each number is:

(a) [tex]\( 234000.0 \)[/tex]

(b) [tex]\( 455999999.99999994 \)[/tex] or (approximately [tex]\( 456000000 \)[/tex])

(c) [tex]\( 3140000000.0 \)[/tex]

(e) [tex]\( 6.019999999999999 \times 10^{23} \)[/tex]

(f) [tex]\( 0.0079 \)[/tex]

(g) [tex]\( 0.000987 \)[/tex]

(j) [tex]\( 8.619999999999999 \times 10^{-7} \)[/tex] or (approximately [tex]\( 0.000000862 \)[/tex])

(k) [tex]\( 3.4500000000000004 \times 10^{-8} \)[/tex] or (approximately [tex]\( 0.0000000345 \)[/tex])