Question

A package of paper says the thickness of a single sheet of paper is 0.079 mm. Represent that number using scientific notation.
A. 7.9×103
B. 7.9×103
C. 7.9×10−2
D. 7.9×10−3

Answer 1

Step-by-step explanation:

Explanation:

On June 22, 1941, Nazi Germany launched a surprise attack against the Soviet Union, its ally in the war against Poland. By the end of the year, German troops had advanced almost 1,000 miles to the outskirts of Moscow. Soon after the invasion, mobile killing units began the mass murder of Soviet Jews. German military and civilian occupation policies led to the deaths of millions of Soviet prisoners of war and Soviet civilians.

Goals of the Invasion

The destruction of the Soviet Union by military force, the permanent elimination of the perceived Communist threat to Germany, and the seizure of prime land within Soviet borders for long-term German settlement had been core policy of the Nazi movement since the 1920s. Adolf Hitler had always regarded the German-Soviet nonaggression pact, signed on August 23, 1939, as a temporary tactical maneuver. In July 1940, just weeks after the German conquest of France and the Low Countries, Hitler decided to attack the Soviet Union within the following year. On December 18, 1940, he signed Directive 21 (code-named Operation "Barbarossa"), the first operational order for the invasion of the Soviet Union.

From the beginning of operational planning, German military and police authorities intended to wage a war of annihilation against the Communist state as well as the Jews of the Soviet Union, whom they characterized as forming the "racial basis" for the Soviet state. During the winter and spring months of 1941, officials of the Army High Command (Oberkommando des Heeres-OKH) and the Reich Security Main Office (Reichssicherheitshauptamt-RSHA) negotiated arrangements for the deployment of Einsatzgruppen behind the front lines to physically annihilate Jews, Communists, and other persons deemed to be dangerous to establishment of long-term German rule on Soviet territory. Often known as mobile killing units, Einsatzgruppen View This Term in the Glossary were special units of the Security Police and the Security Service (Sicherheitsdienst-SD).

Answer 2

$\bold\purple{2x10 ^{some \: number}}$

${\fbox{\pink{Multiplying ~by ~10}}}$

To a positive whole number moves the decimal to the right. I need to multiply 2 to move the decimal to the left. To "recover" the number

0.0002 from 2 , I need to move the decimal 4 to the left. That means I multiply by 10−4

• $\bold\blue{2 \times {10}^{1} = 20}$
• $\bold\blue{2 \times {10}^{ - 1} = 0.2 }$
• $\bold\blue{2 \times {10}^{ - 2} = 0.02}$
• $\bold\blue{2 \times {10}^{ - 4} = 0.0002}$

${\fbox{\green{Extra~Example}}}$

• What is the scientific notation for 0.0000037 ?

$\bold\red{3.7\times{10}^{some~number}}$

• To"recover 0.0000037 from 3.7 ,We need to move the decimal how far ,in which direction ?
• So we need to multiply × 10 to what power ?

$\bold\orange{3.77xx10^((-6)}$

${\fbox{\color{lime}{Last~Extra~Example}}}$

Write 47,000 in scientific Notation.

• $\bold{\color{pink}{4.7\times{10}^{some~number}}}$

• Did u get $\bold{\color{green}{4.7\times{10}^{4?}}}$