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3 years ago

How do you solve x to the second power +7x=O

Mathematics

2 answers:

crimeas [40]3 years ago

8 0

Well the answer is 0 because if anything = 0 then it has to be multiplied by 0 so x = 0

kotykmax [81]3 years ago

5 0

X^2+7x=0
use the square root something....
(7/2)^2=49/4(add it to both sides)
x^2+7x+49/4=49/4
(x+7/2)^2=49/4
x+7/2=posinega 7/2
x=0 or x=-7

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Answer:

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Step-by-step explanation:

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3 years ago

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Answer:

Step-by-step explanation:

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A neighborhood development that is 4 acres is to be divided into 2/3 acre lots. How many lots can be created?

mihalych1998 [28]

6 lots can be created

Solution:

Given that neighborhood development that is 4 acres is to be divided into $\frac{2}{3}$ acre lots

To find: number of lots created

From given information,

Total acres = 4

one lot = $\frac{2}{3} \text{ acres }$

So number of lots created can be found by dividing the total acres by acre of 1 lot

Thus the formula is:

$\text{ Number of lots } = \frac{\text{ total acres }}{\text{ acre of 1 lot }}$

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Answer:

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