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3 years ago

5,000,000 + 800,000 + 50,000 + 300 In standard form

Mathematics

2 answers:

horrorfan [7]3 years ago

5 0

The answer is5,850,300

Inessa05 [86]3 years ago

3 0

Answer:

5,000,000 in standard form is 5 × $10^{6}$
800,000 in standard form is 8 × $10^{5}$

50,000 in standard form is 5 × $10^{4}$

300 in standard form is 3 × $10^{2}$

Hope it helps and have a great day! =D

~sunshine~

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What are the possible values of x if (4x - 5)2 = 49? Check all that apply.<br> uw we we

kogti [31]

Answer:

x = - $\frac{1}{2}$ , x = 3

Step-by-step explanation:

Given

(4x - 5)² = 49 ( take the square root of both sides )

4x - 5 = ± $\sqrt{49}$ = ± 7 ( add 5 to both sides )

4x = 5 ± 7, thus

4x = 5 - 7 = - 2 ( divide both sides by 4 )

x = $\frac{-2}{4}$ = - $\frac{1}{2}$

4x = 5 + 7 = 12 ( divide both sides by 4 )

x = 3

As a check

Substitute these values into the left side of the equation and if equal to the right side then they are the solutions.

x = - $\frac{1}{2}$

left side = (- 2 - 5)² = (- 7)² = 49 = right side ⇒ solution

x = 3

left side = (12 - 5)² = 7² = 49 = right side ⇒ solution

7 0

3 years ago

The owner of a cattle ranch would like to fence in a rectangular area of 3000000 m^2 and then divide it in half with a fence dow

Reika [66]

If you notice the picture below, the amount of fencing, or perimeter, that will be used will be 3w + 2l

now $\bf \begin{cases}
A=l\cdot w\\\\\
A=3000000\\
----------\\
3000000=l\cdot w\\\\
\frac{3000000}{w}=l
\end{cases}\qquad thus
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P=3w+2l\implies P=3w+2\left( \cfrac{3000000}{w} \right)\implies P=3w+\cfrac{6000000}{w}
\\\\\\
P=3w+6000000w^{-1}\\\\
-----------------------------\\\\
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\\\\\\
\textit{so the critical points are at }
\begin{cases}
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solve for "w", to see what critical points you get, and then run a first-derivative test on them, for the minimum

notice the $0=w^2\implies 0=w$ so. you can pretty much skip that one, though is a valid critical point, the width can't clearly be 0

so.. check the critical points on the other

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3 years ago

Hi if u could help me that'd be great

WINSTONCH [101]

Answer:

1 hour and 45 minutes

and 1 hour

Step-by-step explanation:

x= run

y= walk

5x+2.5y = distance

5x+2.5(1.5)=12.5

solve for x

5x=8.75

x=1.75

1.75 in hours is 1 hour and (60*.75)=45

1 hour and 45 minutes

" If the marathon race participant ran for 2 hours, how many hours did the participant walk?"

We use the same equation

5x+2.5y=distance

we'll assume that they till walked 12.5 miles

which means that

5(2)+2.5y=12.5

solve for y

2.5=2.5y

y=1

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2 years ago

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(Please help) What is the reason for each step in the solution of the equation?<br><br> 16−3x=x

lana [24]

16x - 3x = x is the Given,

16 = 4x is the Addition Property of Equality,

and

4 = x is the Division Property of Equality!

⭐ Please consider brainliest! ⭐

✉️ If any further questions, inbox me! ✉️

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3 years ago

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It takes four painters working at the same rate 1.25 work-days to finish a job. If only three painters are available, how many w

laila [671]

Answer:

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Step-by-step explanation:

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3 years ago