MATHEMATICS HIGH SCHOOL

Express 7.4 x 10² in standard form.

MATH

Answers

Answer 1

Answer:

10^2 = 100

7.4 × 10^2 = 7.4 × 100 = 740

Answer: 740

Answer 2

Answer:

Answer:

7.4 x 10²

7.4 *100

740

Step-by-step explanation:

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Walmart is selling 3 lemons for $1.20.how many does 25 lemons cost

Answers

Answer:

10USD

Step-by-step explanation:

For each lemon: 1.20/3=0.4

for 25: 0.4*25=10USD

3x squared times 2x squared

Answers

When multiplying numbers with exponents, you only multiply the coefficients. The variable is then copied (this applies to numbers with similar variables), and the exponents are then added. This is shown below:

3x^2 * 2x^2 = 6x^4

The simplified form of the expression 3x² * 2x² is 6x⁴.

To simplify the expression 3x² * 2x², we need to multiply the coefficients and add the exponents of the variables.

Step 1: Multiply the coefficients (numbers in front of the variables):

3 * 2 = 6

Step 2: Add the exponents of the variables (x² * x² = x²⁺² = x⁴):

x² * x² = x²⁺² = x⁴

Step 3: Put the results together:

6x⁴

Therefore, the simplified form of the expression 3x² * 2x² is 6x⁴.

In summary, when multiplying two terms with the same variable (x) raised to a power (exponent), we multiply their coefficients (3 and 2, which results in 6) and add their exponents (2 and 2, which results in 4). The final answer is 6x⁴, where 6 is the coefficient and x⁴ represents the variable raised to the power of 4. This calculation follows the rules of multiplying terms with variables and exponents.

To know more about simplified form:

brainly.com/question/28401329

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What is bigger 1/5 or 2/10

Answers

they are equal...1/5 is half of 2/10

A bus and a car leave from the same city traveling in opposite directions. The bus leaves 2 hours before the car does. The bus travels at a steady speed of 50 mph while the car travels at 70 mph. After how many hours will the bus and car be 800 miles apart?If h represents the number of hours the bus travels, then which of the following expressions represents the number of miles the car travels?
70(h + 2)
70(h - 2)
70h

Answers

Answer:

After 7.8 hours (7 hours 48 min.) will the bus and car be 800 miles apart

70(h-2) expression represents the number of miles the car travels.

Step-by-step explanation:

If h represents the number of hours the bus travels.

In the question it is said that the bus leaves 2 hours before the car does

Therefore car travels (Time) = ( h-2 )

car's speed = 70 mph,

Distance = speed × time = 70(h-2)

70(h - 2) expression represents the number of miles the car travels.

If we want to find the number of hours will the bus and car be 800 miles apart we can solve it as :

50h + 70(h-2) = 800

50h + 70h - 140 = 800

120h = 800 + 140

120h = 940

h = 940 ÷ 120 = 7.833... = 7.8 hours (7 hours and 48 min.)

Ans. After the bus left the city, after 7.8 hours the car and the bus will be 800 miles apart.

the answer is b 70(h-2)

What is the algebraic expression for the quotient of 17 and K?

Answers

The algebraic expression for the quotient of 17 & k can be written by knowing which one is the divisor and which one is the dividend. Because 17 comes before the "and", it would be the dividend, and because k comes after the "and", it would be the divisor. So, your expression should look like this:

17/k

Final answer:

The algebraic expression for the quotient of 17 and K is 17/K.

Explanation:

The algebraic expression for the quotient of 17 and K is 17/K. In algebra, division is represented by the forward slash symbol (/). So, when you divide 17 by a variable K, the quotient is expressed as 17/K.