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3 years ago

Explain how to write 2.14 * 10 ^ - 5 in standard form by moving the decimal point .

Mathematics

1 answer:

Greeley [361]3 years ago

6 0

Answer:

0.0000214

Step-by-step explanation:

To convert the given question to decimal point we will have to move the point by the number in the standard form...how

2.14*10^-5

It means that the point will be moved to the left in five times...

It gives 0.0000214

In some cases we might just have to move the point to the right if only the 10^-5 is just 10^5

Always ensure to be cautious of signs

The final answer is 0.0000214

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46, 27, 48, 96, 61, 84, 29 1, 64, 5, 34 interquartile range A.19 B.37 C.73 D.46

Yanka [14]

If you would like to know the interquartile range from the following set of numbers, you can find this using the following steps:

The interquartile range is the difference between the third and the first quartiles.

Lower quartile: 27
Upper quartile: 64
Interquartile range: upper quartile - lower quartile = 64 - 27 = 37

The correct result would be B. 37.

5 0

4 years ago

Need help ASAP!!

Helen [10]

The answer is D) 11/21

Your welcome

4 0

3 years ago

3+1/2 (3 - x) <-7 solve inequality

astra-53 [7]

subtract 3 from both sides:

$\dfrac{1}{2}(3-x)$

Multiply both sides by 2:

$3-x$

Subtract 3 from both sides:

$-x$

Change sign to both sides (this implies that you should also change the inequality sign):

$x>23$

8 0

3 years ago

3x3-27x=0 Solve by factoring a

Eddi Din [679]

After factoring $3x^3-27x=0$ the solutions are x=0 , x=3, x= -3

Step-by-step explanation:

We need to solve by factoring:

$3x^3-27x=0$

Solving:

$3x^3-27x=0$

Taking 3x common:

$3x(x^2-9)=0$

Now using formula $a^2-b^2=(a-b)(a+b)$

$3x((x)^2-(3)^2)=0\\3x(x-3)(x+3)=0$

$3x=0\,\,and\,\,x+3=0\,\,and\,\,x-3=0\\x=0\,\,and\,\,x=-3\,\,and\,\,x=3\\$

So, After factoring $3x^3-27x=0$ the solutions are x=0 , x=3, x= -3

Keywords: Factorization

Learn more about Factorization at:

#learnwithBrainly

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3 years ago

CAN SOMEONE HELP PLZ AND EXPLAIN BEC IF DONT DO GOOD I CANT GO TO MY DADS HOUSE THIS WEEK END

Galina-37 [17]

Hello!

6.
Since the area is that of a square, you know that all side lengths are the same.

Area is base times height (A = bh), but since base and height are the same for a square, you get the formula A = a².

$A = a^{2}$
$144 = a^{2}$
$\sqrt{144} = a$
$12 = a$

The length of the side of a square with an area of 144 in² is 12 in.

7.
Rational number.

8.
This is a right triangle; use the Pythagorean Theorem to find missing lengths of right triangles. Pythagorean Theorem: a² + b² = c², where c is the hypotenuse of the triangle.

Plug in your leg lengths:

a² + b² = c²
8² + x² = 21²
64 + x² = 441
x² = 377
x = 19.4

7 0

3 years ago