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4 years ago

58,000,000 km in scientific notation

2 answers:

4 0

To start, scientific notation is another way to express numbers that are either too big or too small (i.e 0.00000009 or 345,000,000,000).

To put the number 58,000,000 in scientific notation, start off by moving the decimal of the number to the left or right until it is equal to or greater to 1 and less than 10. In this case, you would move the decimal right 7 times so that it looks like this: 5.8
Finally, turn the number into an expression where you multiply the number by 10 to the power of the amount of spaces you moved the decimal to until it was between 1 to 10.
This would be your answer: 5.8*10^7

Paha777 [63]4 years ago

3 0

The answer in scientific notation is 5.8 x 10 7.( The 10 is raised by 7).

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When is taking a zero percent APR option more beneficial than a large rebate?

EleoNora [17]

The answer is 
d.If the money you would save over the course of the loan is greater than the instant rebate, the zero percent APR is a better choice.

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3 years ago

A six feet-tall person is standing next to a flag pole.The person is casting a shadow 1 1/2 feet in length,while the flagpoleis

Vlad1618 [11]

Answer:

20 feet

Step-by-step explanation:

Consider the given pictorial representation below,

The Height of the Pole =|AB|

The Height of the Person =|DE|

Shadow cast by the Pole =|AC|

Shadow cast by the Person =|EC|

Triangles ABC and DEC are similar triangles therefore,

$\frac{|DE|}{|AB|} =\frac{|EC|}{|AC|}$

$\frac{6}{x} =\frac{1.5}{5}$

Cross multiplying

x X 1.5 = 6 X 5

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Height of the flag pole = 20 feet

4 0

3 years ago

Please help with these math questions

Alexxx [7]

3) This is definitely a positive association, but the question is - is it linear?
Since a somewhat straight line can be drawn through the points, it is linear.

Answer: positive linear association

4) Find the slope using the formula
$m = \frac{y2 - y1}{x2 - x1}$

m = 43 - 48/ 4 - 2 = -5/2 = -2.5
Negative association, but is it linear? Lets find out

Oh no! It seems that their is not a pattern in the association, so its nonlinear!

Answer: Negative nonlinear association

5) $m = \frac{y2 - y1}{x2 - x1}$
m = 80 - 66/ 5 - 3
m = 14/2
m = 7

Positive! But is it linear??
Let us draw a graph this time.

I know my graph is messy, but can you see the nonlinear-ness? It doesnt form a straight line!

Answer: Positive nonlinear association

Hope this helped. :)

8 0

3 years ago

Which measure is the same as the standard error of the mean?

grigory [225]

Standard deviation I'd say

8 0

3 years ago

If x=7+root 40 ,find the value of root x+1by the root of x

Luda [366]

Chapter : Algebra

Study : Math in Junior high school

x = 7 + √40

find √x of √x + 1

= √x + 1

= √(7+√40) + 1

in Formula is :

= √7+√40 = √x + √y

= (√7+√40)² = (√x + √y)²

= 7+√40 = x + 2√xy + y

= 7 + √40 = x + y + 2√xy

→ 7 = x + y → y = 7 - x ... Equation 1

→ √40 = 2√xy → √40 = 2.2√10 = 4√10

= xy = 10 ... Equation 2

substitution Equation 1 to 2 :

= xy = 10

= x(7-x) = 10

= 7x - x² = 10

= x² - 7x + 10 = 0

= (x - 5)(x - 2) = 0

= x = 5 or x = 2

Subsitution x = 5 and x = 2, to equation 1

#For x = 5

= y = 7 - x

= y = 7 - (5)

= y = 2

#For x = 2

= y = 7 - x

= y = 7 - (2)

= y = 5

and his x and y was find :

#Equation 1 :

= x = 5 and y = 2

#Equation 2 :

= x = 2 and y = 5

So that :

√7+√40 = √x + √y

= √7+√40 = √2 + √5

And that is answer of question :

= √2 + √5 + 1

3 0

3 years ago