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3 years ago

How do you write 49 in scientific notation? × 10^

Mathematics

2 answers:

Andrews [41]3 years ago

8 0

Answer:

4.9 × 10^1

hopefully this helped :3

Ksivusya [100]3 years ago

6 0

Answer:

4.9 * 10 ^1

Step-by-step explanation:

We want one digit to the left of the decimal

4.9

We moved the decimal one place to the left

One is the exponent. Since we moved to the left the exponent is positive

4.9 * 10 ^1

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What is the correct first step to solve this system of equations by elimination?

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$\bold{\huge{\pink{\underline{ Solution }}}}$

$\bold{\underline{ Given }}$

We have given two linear equations that is 2x - 3y = -6 and x + 3y = 12 .

$\bold{\underline{ To \: Find }}$

We have to find the value of x and y by elimination method.

$\bold{\underline{ Let's \: Begin }}$

$\sf{ 2x - 3y = -6 ...eq(1)}$

$\sf{ x + 3y = 12 ...eq(2)}$

Multiply eq( 2 ) by 2 :-

$\sf{ 2( x + 3y = 12 )}$

$\sf{ 2x + 6y = 24 }$

Subtract eq(1) from eq(2) :-

$\sf{ 2x + 6y -( 2x - 3y) = 24 -(-6)}$

$\sf{ 2x + 6y - 2x + 3y = 24 + 6 }$

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$\sf{ y = 30/9}$

$\sf{\red{ y = 10/3}}$

Now, Subsitute the value of y in eq( 1 ):-

$\sf{ 2x - 3(10/3) = -6 }$

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$\sf{ 2x = -6 + 10}$

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3 years ago

Find the arc length of a central angle of pi/6 in a circle whose radius is 10 inches.

gogolik [260]

Answer:

= 5/3 * pi inches

or approximately 5.235987756 inches

Step-by-step explanation:

The formula for arc length = r * theta where theta is in radians

arc length = 10 * pi/6

= 10/6 * pi

= 5/3 * pi

or approximately 5.235987756 inches

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How do you write 49 in scientific notation? ____× 10^____

How do you write 49 in scientific notation? × 10^