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larisa86 [58]
3 years ago
13

4x^2-20=5 solve by using the square root property

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
7 0

Step-by-step explanation:

4x^2 - 20 = 5

4x^2 -25 = 0

4x^2 = 25

2x = 5, or -5

x = 5/2 , or -5/2

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Zane buys a rope that is 50 feet long. The cost of the rope is $0.35 per foot, including tax. What is the total cost, in dollars
Elan Coil [88]

Answer:

50x.35=17.50

Step-by-step explanation:

multiply length times amount per foot equals total cost

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A radio active isotope decays according to the exponential decay equation where t is in days. Round to the thousandths place. Th
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2 years ago
The size of airmail packages is it continuous or discrete?
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6 0
2 years ago
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Round your answer to the nearest hundredth.<br><br> 13.48x − 200 &lt; 256.12
wolverine [178]

Answer:

<h2>x < 33.84</h2>

Step-by-step explanation:

13.48x − 200 < 256.12

Using the addition property , add 200 to both sides

That's

13.48x + 200 - 200 < 256.12 + 200

13.48x < 456.12

<u>Divide both sides by 13.48</u>

\frac{13.48x}{13.48}   <   \frac{456.12}{13.48}  \\ x  <  \frac{456.12}{13.48}  \\  \:  \:  \:  x  <  33.83679

We have the final answer as

x < 33.84 to the nearest hundredth

Hope this helps you

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