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klasskru [66]
2 years ago
8

Solve 5w^2+25=115, Where w is a real number.

Mathematics
1 answer:
MArishka [77]2 years ago
4 0

Answer:

w=+/-4.24 or whatever could be either since its squared

Step-by-step explanation:

subtract 25 so 5x^2=90. divide by 5 so w^2=18 then square root to get rid of the ^2 so w=+/-4.24

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Carpect costs $16 a square foot. A rectangular floor is 16 feet long by 14 feet wide. How much would it cost to carpet the floor
DerKrebs [107]

Answer:

$3584

Step-by-step explanation:

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- one square foot is $16, so 224 sqaure feet are 224*16

= 3584

8 0
2 years ago
Read 2 more answers
What is the area of a trapezoid with side lengths of 13,13,20,30 and a height of 12 cm
Dennis_Churaev [7]

Answer:

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Step-by-step explanation:

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I hope this helps you :)

6 0
2 years ago
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Digiron [165]
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6 0
3 years ago
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Blababa [14]
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4 0
2 years ago
Someone solve these equations with working really appreciate it
nignag [31]

Answer:

a) t = \sqrt{\frac{d}{4.9} }

b) t = 0.3 seconds

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d) d = 11 cm.

Step-by-step explanation:

One test involves catching a 1 m ruler and measuring the distance, d in meters, that the ruler will travel before being caught, the reaction time t in seconds is then calculated using the formula

t = \sqrt{\frac{2d}{9.8} } .......... (1)

a) the simplified expression is

t = \sqrt{\frac{d}{4.9} } ......... (2)

b) If d = 44 cm = 0.44 meters, from equation (2) we get,

t = 0.299 seconds ≈ 0.3 seconds (Approximate)

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t^{2} = \frac{d}{4.9}

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d) Now, if t =  \frac{0.3}{2} = 0.15 seconds, then from equation (3) we get,

d = 4.9 (0.15)² = 0.11 meters = 11 cm (Answer)

4 0
3 years ago
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