Write the number in standard notation 6.43 x 10 ^-4

Answers

Answer 1

Answer:

The number $6.43 * 10^(-4)$ in standard notation is 0.000643.

In scientific notation, numbers are expressed in the form of $a * 10^b$ , where a is a decimal number between 1 and 10 (inclusive), and b is an integer that represents the power of 10 by which a is multiplied.

For the number $6.43 * 10^(-4)$ :

The decimal number a is 6.43. It is greater than or equal to 1 but less than 10, as it falls within the range [1, 10).

In this case, a is 6.43.

The exponent b is -4.

This indicates that the decimal number a is multiplied by 10 raised to the power of -4.

To calculate the value of the number in standardnotation, we perform the multiplication:

$6.43 * 10^(-4) = 6.43 * 0.0001$

Now, we can simplify the multiplication:

6.43 × 0.0001 = 0.000643

Hence, the number $6.43 * 10^(-4)$ in standard notation is 0.000643.

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Answer:

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The regular price of a T-shirt is $14.80. Today, T-shirts are on sale for 0.8 of their regular price. How much will Elias spend if he buys 6 T-shirts today?

Answers

its actually $71.04

0.8=4/5 (simplified)

4/5 of 14.80= 11.84

11.84 x 6= 71.04

Solve the equation
|-9-7x|=|23-7x|.
Graph the solutions, if possible.

Answers

Answer: No Solution

Step-by-step explanation:

When there are absolute values on both sides, you simply just get rid off the signs. (Normally, it results in positive and negative on the other side)

SOLVE:

Given

|-9-7x|=|23-7x|

No absolute value sign

-9-7x=23-7x

Add 7x on both sides

-9=23

ANSWER:

This is no solution, because -9≠23

When the numerator and denominator have only 1 as a common factor

Answers

then it is in simplest form and they are both prime

A fraction in which the greatest common factor of the numerator and the denominator is 1 is known as a reduced, or simplified, fraction. Quite often I have also heard this called a fraction in its lowest terms. This just means that the fraction has been reduced

What is the answer to this problem? 7.5/12=4.2/x

Answers

Answer:

x = 67.2

Step-by-step explanation:

7.5/12 = 4.2/x

First, divide 7.5 by 12.

0.625 = 42/x

Next, multiply both sides by x

0.625x = 42

Next, divide by 0.625

x = 67.2

There's your answer!

Answer:

Answer is 6.720

Step-by-step explanation:

x = 168/25 = 6.720

Use the distributive property to find the value of 8(10 + 9).
152
82
89
97

Answers

The answer is 89 because you distribute the 8 to the 10 and then to the 9. 80+9=89

152 because 8x10=80 and 8x9=72 so 80+73=152

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Anita and Maria went to the candy store. Maria bought 5 pieces of fudge and 3 pieces ofbubble gum for a total of $5.70. Anita bought 2 pieces of fudge and 10 pieces of bubblegum for a total of $3.60. Determine the cost of 1 piece of bubble gum.