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SOVA2 [1]
1 year ago
13

Add the following two numbers in scientific notation.

Mathematics
2 answers:
Andrews [41]1 year ago
5 0

Answer:

b) 3.31 × 10⁴

Explanation:

\sf \rightarrow \left(3.11\cdot 10^4\right)+ \left(2\cdot 10^3\right)

remove parenthesis

\rightarrow \sf 3.11\cdot \:10^4+2\cdot \:10^3

simplify

\rightarrow \sf 31100+2000

add the numbers

\sf \rightarrow 33100

convert to scientific form

\sf \rightarrow 3.31 \ x \ 10^4

strojnjashka [21]1 year ago
4 0

Answer:

3.31 x 10^4

Step-by-step explanation:

3.111 x 10^4 is 31110

2 x 10^3 is 2000

31110 + 2000 = 33100 or 3.31 x 10^4

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Which equations represent circles that have a diameter of 12 units and a center that lies on the y-axis
Tju [1.3M]

The equations representing the circle having a diameter of 12 units and a center lying on y-axis are <u>x² + (y – 3)² = 36</u>, and <u>x² + (y + 8)² = 36</u>, making <u>options 1, and 5</u> the two choices.

In the question, we are looking for the equations of the circle having a diameter of 12 units and a center lying on y-axis.

The standard form of the equation of a circle is (x - h)² + (y - k)² + r², where (h, k) is the center of the circle, and r is its radius.

A circle having a diameter of 12 units, will have a radius of 12/2 = 6 units. Thus, r = 6.

A circle having the center on the y-axis will have a center as (0, k) as all points on the y-axis have x-coordinate 0.

Thus, the equation of the circle, with a diameter of 12 units and the center lying on the y-axis takes the form:

x² + (y - k)² = 6², or, x² + (y - k)² = 36.

From the given options, the equations <u>x² + (y – 3)² = 36</u>, and <u>x² + (y + 8)² = 36</u>, are of this form.

Thus, the equations representing the circle having a diameter of 12 units and a center lying on y-axis are <u>x² + (y – 3)² = 36</u>, and <u>x² + (y + 8)² = 36</u>, making <u>options 1, and 5</u> the two choices.

Learn more about equations of circle at

brainly.com/question/16039879

#SPJ4

The provided question is incomplete. The complete question is:

"Which equations represent circles that have a diameter of 12 units and a center that lies on the y-axis? Select two options.

  1. x² + (y – 3)² = 36
  2. x² + (y – 5)² = 6
  3. (x – 4)² + y² = 36
  4. (x + 6)² + y² = 144
  5. x² + (y + 8)² = 36."
8 0
2 years ago
547321 rounded to nearest one thousand
Sphinxa [80]
The nearest thousand is 547,000
5 0
3 years ago
Please help asap i need help
WITCHER [35]
The answer is c because the plot begins with 4
7 0
3 years ago
A square rug has an area of 72ft2.(squared). Write the side length as a square root. Then decide if the side length is a rationa
Marrrta [24]

Answer: it’s square root(72) and no the length is not a rational number

Step-by-step explanation:

3 0
3 years ago
There are 4 times as many used cars in the car dealer ship lot is there a new car there are 120 cars total in the dealership lik
guapka [62]
There are 30 new cars and 90 used cars in the dealership.

120/4=30 new
120-30=90 used
6 0
3 years ago
Read 2 more answers
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