2 years ago

SOMEBODY HELPPPPPPPPPP BE FAST

Mathematics

1 answer:

Paul [167]2 years ago

5 0

The answer 30, 40, 50

Forms a right triangle

Hope this helps!

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It takes one examiner 36 hours to mark 70 exam papers. How long would it take 6 examiners to mark 70 papers?

Orlov [11]

Answer:

36 divided by 6 is 6

Step-by-step explanation:

idk if im right i j wokeup lol

3 0

2 years ago

E varies directly with the square root of C. If E=40 when C=25 find: E when C= 49

tiny-mole [99]

Answer: E = 56

Step-by-step explanation:

E is proportional to √C

To remove proportionality, introduce a constant (k).

E = k × √C

From question,

E = 40 and C = 25

So,

40 = k ×√25

40 = k × 5

k = 8

Now,

C = 49

k = 8

E = ?

E = k√C

E = 8 × √49

E = 8 × 7

E = 56

6 0

2 years ago

Read 2 more answers

Which expression is equivalent to p x q x q x q x q x q x q x q x q

Anika [276]

The answer is p x q to the 9th power or the first answer.

3 0

2 years ago

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In 2018, the population will grow over 700,000.The population of a city in 2010 was 450,000 and was growing at a rate of 5% per

Firlakuza [10]

Answer:

The year is 2020.

Step-by-step explanation:

Let the number of years passed since 2010 to reach population more than 7000000 be 'x'.

Given:

Initial population is, $P_0=450,000$

Growth rate is, $r=5\%=0.05$

Final population is, $P=700,000$

A population growth is an exponential growth and is modeled by the following function:

$P=P_0(1+r)^x$

Taking log on both sides, we get:

$\log(P)=\log(P_0(1+r)^x)\\\log P=\log P_0+x\log (1+r)\\x\log (1+r)=\log P-\log P_0\\x\log(1+r)=\log(\frac{P}{P_0})\\x=\frac{\log(\frac{P}{P_0})}{\log(1+r)}$

Plug in all the given values and solve for 'x'.

$x=\frac{\log(\frac{700,000}{450,000})}{\log(1+0.05)}\\x=\frac{0.192}{0.021}=9.13\approx 10$

So, for $x > 9.13$ , the population is over 700,000. Therefore, from the tenth year after 2010, the population will be over 700,000.

Therefore, the tenth year after 2010 is 2020.

8 0

2 years ago

HELP ME PLEASEEEE

dmitriy555 [2]

Answer: 5/4 = 1 2/8

Step-by-step explanation: That's the answer

5 0

1 year ago