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Bond [772]
3 years ago
10

Solve Using Square Roots x^2-81=0 4x-25=0 x^2-18=0 3x^2-8=25 x^2+72=0

Mathematics
1 answer:
Zarrin [17]3 years ago
4 0
X=9 
x=6.25
x=4.24
x=3.32
x= can't take the square root of a negative number 

*also remember that when you take the square root it is the + and - sign for the answer 
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Sara drove 96 miles on 3.2 gallons of gas. How many miles can Sara drive on 12.5 gallons of gas
Blababa [14]

Answer:

375 miles

Step-by-step explanation:

Create a proportion where x is the number of miles she can drive on 12.5 gallons of gas:

\frac{96}{3.2} = \frac{x}{12.5}

Cross multiply and solve for x:

3.2x = 1200

x = 375

So, with 12.5 gallons of gas, Sara can drive 375 miles

4 0
3 years ago
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castortr0y [4]

The answers are:

Thea reads 180 words per minute...

Eleanor reads 450 words every 2 minutes...

After 1 hour of reading, Elanor reads more words than Thea

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3 years ago
What is 0.5333333333 as a fraction
Inga [223]
x=0.5\overline{3}\\
10x=5.\overline{3}\\
100x=53.\overline{3}\\
100x-10x=53.\overline{3}-5.\overline{3}\\
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6 0
4 years ago
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What is the answer to this equation? Must solve for x.<br> x+5=12x−4
natulia [17]

Answer:

x = 9/11

Step-by-step explanation:

x + 5 = 12x - 4

Subtract x from both sides

x + 5 - x = 12x - x - 4

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Add 4 to both sides

      5+ 4 = 11x - 4 + 4

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Divide both sides by 11

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8 0
3 years ago
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Alexandra [31]

Answer:

A

Step-by-step explanation:

In order to compare all three numbers, you must change them all to have the same form, either all decimal form, all fraction, or all percentages.

The easiest ways to compare are decimal and percentage, as they're practically the same thing. For simplicities sake, though, let's turn all the numbers into decimal.

Since 0.85 is already in decimal form, leave it as it is.

3/4 can be turned into a decimal by putting it into a calculator, but intuitively you should know that it's 0.75. If you don't know a fraction intuitively, you just need to make the fraction into a multiple of denominator 100 and take the numerator. For example:

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Numerator is 75.0, now simply move the decimal place up to to get the decimal form 0.75.

91% can be changed into a decimal by moving the decimal place left 2 places. 91.0% turns into 0.91.

Now that you can see the numbers, just rearrange them from least to greatest

0.75<0.85<0.91

equal to A

5 0
3 years ago
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