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SVEN [57.7K]
4 years ago
6

A machine worked for 5 hours and used 4 kilowats if electricity. The machine used ------ of a kilowatt each hour it worked.

Mathematics
1 answer:
slega [8]4 years ago
8 0

Answer:

0.8 kilowatt/hour

Step-by-step explanation:

divide 4/5, gives you .

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What exponents can you use to get to 625
olya-2409 [2.1K]
25^2 Hope that helps
3 0
3 years ago
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Hamzah's soccer team is trying to raise $620 to travel to a tournament in Florida, so they decided to host a pancake breakfast.
Kobotan [32]

Answer:

31 people

Step-by-step explanation:

Hamzah soccer team is trying to raise the amount of $620 to travel to a tournament in Florida

The soccer team decide to organise a pancake breakfast

Each person that attends the breakfast must pay $20

Therefore the amount of people needed to attend the breakfast to raise $620 can be calculated as follows

= 620/20

= 31

Hence 31 people need to be in attendance inorder to raise $620

5 0
3 years ago
Name the marked angle in 2 different ways.
Leona [35]

Answer:

Step-by-step explanation:

<CDE or <EDC

7 0
3 years ago
Find the complex fourth roots \[-\sqrt{3}+\iota \] in polar form.
____ [38]

Let z=-\sqrt3+i. Then

|z|=\sqrt{(-\sqrt3)^2+1^2}=2

z lies in the second quadrant, so

\arg z=\pi+\tan^{-1}\left(-\dfrac1{\sqrt3}\right)=\dfrac{5\pi}6

So we have

z=2e^{i5\pi/6}

and the fourth roots of z are

2^{1/4}e^{i(5\pi/6+k\pi)/4}

where k\in\{0,1,2,3\}. In particular, they are

2^{1/4}e^{i(5\pi/6)/4}=2^{1/4}e^{i5\pi/24}

2^{1/4}e^{i(5\pi/6+2\pi)/4}=2^{1/4}e^{i17\pi/24}

2^{1/4}e^{i(5\pi/6+4\pi)/4}=2^{1/4}e^{i29\pi/24}

2^{1/4}e^{i(5\pi/6+6\pi)/4}=2^{1/4}e^{i41\pi/24}

7 0
3 years ago
WILL MARK BRAINLEIST!!!!! HELP ASAP!
Alex Ar [27]

Answer:

1 7/5

Step-by-step explanation:

we should first simplify the fraction part of each option

7/5 = 1 2.5 add this to 1 and you get 2 2/5

this happens to be the answer but in the future go through each option

5 0
3 years ago
Read 2 more answers
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