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2 years ago

Convert 0.000049 to scientific notation

Mathematics

2 answers:

lilavasa [31]2 years ago

8 0

Answer:

4.9 * 10⁻⁵

Step-by-step explanation:

0.000049 → 4.9

-BARSIC- [3]2 years ago

3 0

Answer:

4.9x10^-5

Step-by-step explanation:

$4.9x10^{-5}$

If the exponent is negative, then the number is small.

If the exponent is positive, then the number is large.

I hope this helps you! :)

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A circular pool with a diameter of 18 ft will have a uniform 4 ft concrete walkway poured around it. If the concrete cost $4.25

zysi [14]

A circular pool with a diameter of 18 ft will have a uniform 4 ft concrete walkway poured around it. If the concrete cost $4.25 a square foot, how much will it cost for the concrete?

This can be solve be solving the area of walkway

Area of walkway is equal to = (pi)( 9 ft +4) ^2– (pi)(9ft)^2

= 276.46 sq ft

Cost = 276.46 sq ft * ($4.25 a square foot) = $1174.70

4 0

3 years ago

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Help pls!!!!! Brainliest goes to first right answer

zepelin [54]

Answer:

96 inch²

Step-by-step explanation:

there are 2 shapes,

1. a square

2. a triangle

lets find the area of the square first,

AREA = SIDE × SIDE

= 8 × 8

= 64 inch²

now, area of triangle ,

$area \: = \frac{1}{2} \times base \: \times height \:$

$= \frac{1}{2} \times 8 \times 8 \\ = \frac{1}{2} \times 64 \\ = 32 \: {inch}^{2}$

so, total area is :

area of square + area of triangle

= 64 + 32

= 96 inch²

7 0

3 years ago

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Is 2 And 22 linear or nonlinear?

grigory [225]

Linear would be the answer

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3 years ago

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What are the dimensions of a rectangular box with a volume of 50b 3 + 75b2 - 2b - 3?

Inessa [10]

Answer:

$\large\boxed{(2b+3)\times(5b-1)\times(5b+1)}$

Step-by-step explanation:

The formula of a volume of a rectangular box:

$V=lwh$

l - lenght

w - width

h - height

$V=50b^3+75b^2-2b-3=25b^2(2b+3)-1(2b+3)\\\\=(2b+3)(25b^2-1)=(2b+3)(5^2b^2-1^2)\\\\=(2b+3)\bigg((5b)^2-1^2\bigg)\qquad\text{use}\ a^2-b^2=(a-b)(a+b)\\\\=(2b+3)(5b-1)(5b+1)$