What is the scientific notation of 42

Mathematics

2 answers:

RideAnS [48]3 years ago

8 0

Answer:

Step-by-step explanation: To write 49 in scientific notation, first write a decimal point in the number so that there is only one digit to the left of the decimal point.

So here we have 4.2. Next, count the number of places that we would need to move the decimal point in 4.2 to get back to the original number which is 42.

Since we would need to move the decimal point 1 place to the right to get back to the original number, we would need to multiply 4.2 by 10 to the 1st power. The exponent is positive because we need to move the decimal point to the right.

Therefore, 42 can be written in scientific notation as 4.2 × $10^{1}.$

Aleksandr-060686 [28]3 years ago

7 0

The answer is 7, because you multiply it by 6.

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The expressions for the length and the width of the rectangular garden are 3x + 2 feet, and x + 5 feet respectively where x is the length of the square patch for tomatoes.

A square is a quadrilateral with all four sides equal, and all four angles at 90°, whereas a rectangle is a quadrilateral with opposite pair of sides equal, and all four angles at 90°.

In the question, we are informed that Melissa is planning a rectangular vegetable garden with a square patch for tomatoes.

The side of the square is given to be x feet.

We are asked to write expressions for the length and width of the rectangular garden.

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We are informed that she wants the length of the garden to exceed three times the length of the tomato patch by 2 feet.

Thus, the length of the garden can be shown as the expression 3x + 2 feet.

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We are informed that she also wants the garden's width to exceed the width of the tomato patch by 5 feet.

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The provided question is incomplete. The complete question is:

"Melissa is planning a rectangular vegetable garden with a square patch for tomatoes. She wants the length of the garden to exceed three times the length of the tomato patch by 2 feet. She also wants the garden's width to exceed the width of the tomato patch by 5 feet.

Let x represent the length, in feet, of the square tomato patch.

Write expressions to represent the length and width of Melissa's vegetable garden in terms of x.

Enter the correct answer in the box."

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2 years ago

In the town zoo 3/8 of the animals are birds. Of the birds 4/15 are birds of prey. What fraction of the animals are nirds of pre

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3/8 of the animals are birds
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If you want to know what fraction of the animals at the zoo are birds of prey, you can calculate this using the following steps:

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Result: In the town zoo, 1/10 of animals are birds of prey.

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Step-by-step explanation:

The correct equation is the following: