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3 years ago

Anyone please help . ...

Mathematics

1 answer:

Oxana [17]3 years ago

4 0

Answer:

HI is 8 as the equal angles resemble equilateral triangle

rhe angle is 110 as the two equal sides represent isosceles triangle

Step-by-step explanation:

hope it helped!!!

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The Cobb family of Fremont is looking at ways to decrease their home water and energy usage. Their current electric hot-water he

OverLord2011 [107]

Answer:

ai) 73000 gal/yr

aii) $730 per year

b) 1000 days

Step-by-step explanation:

ai) The water usage per day is ...

(4 showers/day)(10 min/shower)(5 gal/min) = 200 gal/day

Then the usage per year is ...

(200 gal/day)(365 days/yr) = 73,000 gal/yr

aii) The cost of electricity is the cost of heating half the water usage, so is ...

(0.20 kWh/gal)(1/2)(73,000 gal/yr)($0.10/kWh) = $730/yr

b) The current daily cost of electricity for heating water is ...

($730/yr)/(365 days/yr) = $2/day

If the cost is cut in half, it will be $1 per day. That means the savings is $1 per day, so it will take 1000 days to recover the $1000 initial cost. (Effectively, the average cost for the first 1000 days is the same as if the water heater had not been replaced.)

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4 years ago

The rate 450 pounds Over 25 buckets describes the relationship between the number of buckets and the weight of the lobsters in t

drek231 [11]

Answer: 18 pounds

Step-by-step explanation:

450 pounds = 25 buckets

1 bucket = 1 / 25 x 450

= 18 pounds

7 0

4 years ago

Read 2 more answers

Write an equation to represent the puppy's

ikadub [295]

Answer:

Camille: $y=\frac{n}{2} +\frac{3}{2}$

Olivia: $y=x+4$

Step-by-step explanation:

hope it helps have a great day

8 0

3 years ago

Determine an exact value for sin _<br> 3π/4-tan 5π/6

iris [78.8K]

Answer:

$\frac{3\sqrt{2}+2\sqrt{3}}{6}$ or $\frac{\sqrt{2}}{2}+\frac{\sqrt{3}}{3}$

Step-by-step explanation:

$\sin\frac{3\pi}{4}-\tan\frac{5\pi}{6}\\\\\sin\frac{3\pi}{4}-\frac{\sin\frac{5\pi}{6}}{\cos\frac{5\pi}{6}}\\ \\\frac{\sqrt{2}}{2}-\frac{\frac{1}{2} }{-\frac{\sqrt{3}}{2}}\\ \\\frac{\sqrt{2}}{2}+\frac{1}{\sqrt{3}}\\ \\\frac{\sqrt{2}}{2}+\frac{\sqrt{3}}{3}\\ \\\frac{3\sqrt{2}}{6}+\frac{2\sqrt{3}}{6}\\ \\\frac{3\sqrt{2}+2\sqrt{3}}{6}$

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3 years ago

Circle the fraction that makes each comparison true. Show your work by making equivalent fractions with common denominator. 3/4&

VikaD [51]

Step-by-step explanation:

18/24>20/24 you have to flip the sign to make it correct

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3 years ago