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3 years ago

Attend to precision. Mimi says that the 16 is 4. Is Mimi correct? Explain.

Mathematics

1 answer:

garri49 [273]3 years ago

8 0

Answer: It depends on the terms.

Step-by-step explanation: In fraction terms 16 is equivalent to 4. In number terms 16 is a number larger than 4.

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In a series RL circuit, ET = 120 V, R = 40 Ω, and XL = 30 Ω. How much is EL?

dezoksy [38]

Firstly, we will draw

RL series circuit

ET = 120 V, R = 40 Ω, and XL = 30 Ω

Firstly, we will find current

$I=\frac{E_T}{R+jX_L}$

now, we can plug values

and we get

$I=\frac{120}{40+j30}$

now, we can find voltage across L

$E_L=IjX_L$

so, we get

$E_L=\frac{120}{40+j30}(j30)$

now, we can find absolute value

$|E_L|=120\frac{30}{\sqrt{40^2+30^2} }$

$|E_L|=120\frac{30}{ 50 }$

$|E_L|=120\frac{3}{ 5 }$

$|E_L|=72V$ ...............Answer

7 0

2 years ago

Two buses leave a station at the same time and travel in opposite directions. One bus travels

natima [27]

Answer:

63 miles per hour

54 miles per hour

Step-by-step explanation:

Let the two buses be represented as bus A and bus B.

bus A and bus B leave a station at the same time and travel in opposite directions.

Let the speed of bus A be A miles per hour.

Let the speed of bus B be B miles per hour.

One bus travels 9 miles/hour slower than the other.

Let bus A be the faster bus.

This means that the speed of bus B is B = A - 9

If the two buses are 585 miles apart after 5hours, this means that after 5hours, the total distance travelled by bus A and bus B is 585 miles.

Distance travelled by bus A in 5 hours = speed × time = 5A

Distance travelled by bus B in 5 hours = speed × time = 5B

5A + 5B = 585 - - - - - -1

Substituting B = A - 9 in equation 1

5A + 5(A - 9) = 585

5A + 5A - 45 = 585

10A = 585 + 45 = 630

A = 630/10 = 63 miles per hour

B = A - 9 = 63 - 9 = 54 miles per hour

4 0

3 years ago

you deposit $1.000 in a saving account that earns 0.5% each month. Assuming you do not deposit or withdraw any from the account,

Mumz [18]

1 + {[(1 * 0.5) x 12] x 3}

1 + {[0.5 x 12] x 3}

1 + {6 x 3}

1 + 18

I'm not sure if that's a 1.000 or 1,000 so:

1,000 + {[(1,000 * .5) x 12] x 3}

1,000 + {[500 x 12] x 3}

1,000 + {6,000 x 3}

1,000 + 18,000

19,000

8 0

3 years ago

Help with this please

emmainna [20.7K]

$\bf \begin{array}{llll}
step~1&4x=28\\\\
step~2&x=\cfrac{28}{4}\impliedby \textit{she did not divide 28 by 4}
\end{array}
$

7 0

3 years ago

How to write 103,727,495 in expanded form

aleksley [76]

100,000,000+3,000,000+700,000+20,000+7,000+400+90+5 hope this helps

5 0

3 years ago