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2 years ago

(4.7 x 10^5) + (2.8 x 10^3)

Mathematics

2 answers:

madreJ [45]2 years ago

6 0

Answer:

472800

= 4.728 × 10⁵

Step-by-step explanation:

(4.7 × 10⁵) + (2.8 × 10³)

4.7 × 10⁵ + 2.8 × 10³

(4.7 × 10²+ 2.8) × 10³

(4.7 × 100 + 2.8) × 1000

(470 + 2.8) × 1000

472.8 × 1000

= 472800

= 4.728 × 10⁵

EleoNora [17]2 years ago

3 0

Answer:

472800 or 4.728x10^5

Step-by-step explanation:

first you would slove (4.7x10^5) and (2.8x 10^3). Which would be 470000 and 2800. Then add the two together to get 472800. And if they want you to put it back into scientific notation then it would be 4.728x10^5

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2 years ago

For each system of equations, drag the true statement about its solution set to the box under the system?

natta225 [31]

Answer:

y = 4x + 2

y = 2(2x - 1)

Zero solutions.

4x + 2 can never be equal to 4x - 2

y = 3x - 4

y = 2x + 2

One solution

3x - 4 = 2x + 2 has one solution

Step-by-step explanation:

* Lets explain how to solve the problem

- The system of equation has zero number of solution if the coefficients

of x and y are the same and the numerical terms are different

- The system of equation has infinity many solutions if the

coefficients of x and y are the same and the numerical terms

are the same

- The system of equation has one solution if at least one of the

coefficient of x and y are different

* Lets solve the problem

∵ y = 4x + 2 ⇒ (1)

∵ y = 2(2x - 1) ⇒ (2)

- Lets simplify equation (2) by multiplying the bracket by 2

∴ y = 4x - 2

- The two equations have same coefficient of y and x and different

numerical terms

∴ They have zero equation

y = 4x + 2

y = 2(2x - 1)

Zero solutions.

4x + 2 can never be equal to 4x - 2

∵ y = 3x - 4 ⇒ (1)

∵ y = 2x + 2 ⇒ (2)

- The coefficients of x and y are different, then there is one solution

- Equate equations (1) and (2)

∴ 3x - 4 = 2x + 2

- Subtract 2x from both sides

∴ x - 4 = 2

- Add 4 to both sides

∴ x = 6

- Substitute the value of x in equation (1) or (2) to find y

∴ y = 2(6) + 2

∴ y = 12 + 2 = 14

∴ y = 14

∴ The solution is (6 , 14)

y = 3x - 4

y = 2x + 2

One solution

3x - 4 = 2x + 2 has one solution

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2 years ago

F(x) = 5x – 20 find f(6), f(10), and f(20)

damaskus [11]

Answer:

f(6) = 10, f(10) = 30, f(20) = 80

Step-by-step explanation:

Plug in the values into the equation and compute. 5*6 - 20 = 10, 5*10 - 20 = 30, 5*20 - 20 = 80.

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2 years ago

The statement p → q represents "If a number is doubled, the result is even.” Which represents the inverse?

diamong [38]

The inverse of $p\implies q$ is $\neg p\implies\neg q$ . (This eliminates B and D)

$p\implies q$ translates to "if $p$ , then $q$ ". This means the answer must be A.