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3 years ago

Write this number in scientific notation 38200000 Look at attachment down below

Mathematics

2 answers:

weqwewe [10]3 years ago

7 0

Answer:

3.82 × 107

Step-by-step explanation:

Move the decimal point in your number until there is only one non-zero digit to the left of the decimal point. The resulting decimal number is a.

Count how many places you moved the decimal point. This number is b.

If you moved the decimal to the left b is positive.

If you moved the decimal to the right b is negative.

If you did not need to move the decimal b = 0.

Write your scientific notation number as a x 10^b and read it as "a times 10 to the power of b."

Remove trailing 0's only if they were originally to the left of the decimal point.

crimeas [40]3 years ago

4 0

Answer:3.82 x 107

Step-by-step explanation:

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Two side lengths of a triangle are given as 9 cm and 5 cm. What could be the length of its third side? 3cm

disa [49]

The length of the third side could be 5 cm ⇒ 3rd answer

Step-by-step explanation:

There is a fact in any triangle, that the sum of the lengths of the

smallest two sides of a triangle must be greater then the length of

the largest side

The sum of smallest 2 sides > the 3rd side

So to solve the problem

1. Chose the third side from the answer

2. Add the lengths of the two smallest side

3. Compare between the sum and the 3rd side

∵ The length of the two sides of a triangle are 9 cm and 5 cm

- If the third side is 3 cm

∵ 3 and 5 are the smallest side

∵ 3 + 5 = 8

∵ 8 < 9

∴ The sum of the smallest two sides < the 3rd side

∴ 3 cm can not be the length of the 3rd side

- If the third side is 4 cm

∵ 4 and 5 are the smallest side

∵ 4 + 5 = 9

∵ 9 = 9

∴ The sum of the smallest two sides = the 3rd side

∴ 4 cm can not be the length of the 3rd side

- If the third side is 5 cm

∵ 5 and 5 are the smallest side

∵ 5 + 5 = 10

∵ 10 > 9

∴ The sum of the smallest two sides > the 3rd side

∴ 5 cm can be the length of the 3rd side

- If the third side is 14 cm

∵ 5 and 9 are the smallest side

∵ 5 + 9 = 14

∵ 14 = 14

∴ The sum of the smallest two sides = the 3rd side

∴ 14 cm can not be the length of the 3rd side

The length of the third side could be 5 cm

Learn more:

You can learn more about triangles in brainly.com/question/4098846

#LearnwithBrainly

6 0

4 years ago

Can someone solve this and explain?

Anarel [89]

Answer: (y-c)/m
Reasoning:
Subtract c from both sides [ y-c=mx+c-c ]
Divide m from both sides [ (y-c)/m=mx/m ]

7 0

3 years ago

Simplify the polynomial 4x^2 + 4 - 5x + x - 2x^2 + 8

Alexus [3.1K]

Simplified
2x^2 - 4x + 12

3 0

3 years ago

Use algebra to solve 3x+4 = 1/x<br> The exact solutions are x=<br> Х

skad [1K]

Answer:

Ignore the A before the ±, it wouldn't let me type it correctly.

$x=\frac{2±\sqrt{7} }{3}$

Step-by-step explanation:

3x + 4 = 1 ÷ x

3x + 4 - 4 = 1 ÷ x - 4

3x = 1 ÷ x - 4

$3x=\frac{1}{x} +\frac{x(-4)}{x}$

$3x=\frac{1+x(-4)}{x}$

$3x=\frac{1-4x}{x}$

$x(3x)=x(\frac{1-4x}{x})$

x · 3x = - 4x + 1

3x² = - 4x + 1

3x² - (- 4x + 1) = 0

3x² + 4x - 1 = 0

Ignore the A before the ±, it wouldn't let me type it correctly.

$x=\frac{-b±\sqrt{b^{2}-4ac } }{2a}$

a = 3

b = 4

c = - 1

$x=\frac{-4±\sqrt{4^{2}-4((3)(-1)) } }{2(3)}$

$x=\frac{-4±\sqrt{16-4((3)(-1)) } }{2(3)}$

$x=\frac{-4±\sqrt{16+12 } }{2(3)}$

$x=\frac{-4±\sqrt{28 } }{2(3)}$

$x=\frac{-4±\sqrt{(2)(14) } }{2(3)}$

$x=\frac{-4±\sqrt{(2)(2)(7) } }{2(3)}$

$x=\frac{-4±\sqrt{2 } \sqrt{2}\sqrt{7} }{2(3)}$

$x=\frac{-4±2\sqrt{7} }{2(3)}$

$x=\frac{-4±2\sqrt{7} }{6}$

Two separate equations

$x=\frac{-4+2\sqrt{7} }{6}$

$x=\frac{2+\sqrt{7} }{3}$

$x=\frac{-4-2\sqrt{7} }{6}$

$x=\frac{2-\sqrt{7} }{3}$

7 0

3 years ago

Evaluate please like pretty please

yaroslaw [1]

It would be zero because you can’t raise 0 to any positive power.

8 0

3 years ago