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3 years ago

Due this Thursday.. help pls.

Mathematics

1 answer:

ra1l [238]3 years ago

8 0

9514 1404 393

Answer:

9.90×10^-15

Step-by-step explanation:

The leading non-zero digit must be move 15 places to the left to put it in the units place. Having done that, its original value will be restored by multiplying by 10^-15.

Rounded to 3 significant figures, 989912345 becomes 990. The trailing zero must be kept as part of the number to indicate that there are 3 significant figures.

In scientific notation, the number is ...

9.90×10^-15

_____

<em>Additional comment</em>

If the number can be copied and pasted to a spreadsheet, it can be formatted to scientific notation with the required number of digits. Here, we can't copy the number from the image, so we have marked off the decimal places in a way that makes them easier to count. Copying the given number text would avoid any transcription errors.

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The equation x2 + y2 − 2x + 2y − 1 = 0 is the general form of the equation of a circle. What is the standard form of the equatio

Alla [95]

X^2 + y^2 - 2x + 2y - 1 = 0

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(x - 1)^2 + (y + 1)^2 - 3 = 0

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8 0

4 years ago

Read 2 more answers

In a game of checkers, there are 12 red game pieces and 12 black pieces. What is the probability that the first two checkers he

allsm [11]

2/24

add the red checkers and the black checkers together. (This will be the denominator)

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Hope this helped!

5 0

3 years ago

Please help, I’ll mark your answer as brainliest.

Brrunno [24]

Answers:

$(f \circ g)(x) = \sqrt{36x^2+96x+65}\\\\\\(f \circ g)(2) = \sqrt{401}\\\\$

========================================================

Work shown for part 1

$f(x) = \sqrt{x^2-2x+2}\\\\f(g(x)) = \sqrt{(g(x))^2-2(g(x))+2}\\\\f(g(x)) = \sqrt{(-6x-7)^2-2(-6x-7)+2}\\\\f(g(x)) = \sqrt{36x^2+84x+49+12x+14+2}\\\\f(g(x)) = \sqrt{36x^2+96x+65}\\\\(f \circ g)(x) = \sqrt{36x^2+96x+65}\\\\$

----------------------------------

Work shown for part 2

$(f \circ g)(x) = \sqrt{36x^2+96x+65}\\\\(f \circ g)(2) = \sqrt{36(2)^2+96(2)+65}\\\\(f \circ g)(2) = \sqrt{401}\\\\$

6 0

2 years ago

Salinas planting a circular flower bed radius of 3 1/2 feet she plans Chase around it with wire fencing that cost 0.89 $ a foot

Brut [27]

Answer:

Total Fencing Cost =$19.57

Step-by-step explanation:

If Rosalina is planning on fencing, we are talking about the Perimeter of the Flower Bed

$Perimeter of a Circle = 2\pi r$

Radius of the circular flower bed =3.5 ft

Perimeter = $2\pi X 3.5=21.99ft$

If Wire fencing Cost $0.89 per foot

Total Fencing Cost = $0.89 X 21.99=$19.57

6 0

4 years ago

What is the length of bc in the right triangle below

lakkis [162]

Answer:

Step-by-step explanation:

We can use the Pythagorean theorem to solve

a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse

12^2+16^2 = c^2

144+256 = c^2

400 = c^2

Take the square root of each side

sqrt(400) = sqrt(c^2)

20 = c

5 0

3 years ago

Due this Thursday.. help pls.​

Due this Thursday.. help pls.