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zloy xaker [14]
2 years ago
9

The probability that a light bulb will have failed after 1000 hours of use is

Mathematics
1 answer:
son4ous [18]2 years ago
7 0

Answer:

.093

Step-by-step explanation:

do

1.00-0.07

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Please help ill give brainliest!! Im terrible at math :(<br><br> What is: 3 divided by \frac{1}{4} ?
Ghella [55]

Answer:

12

Step-by-step explanation:

3 ÷ 1/4

Copy dot flip

Keep the first number, change the divide to multiply and take the reciprocal of the 2nd number

3 * 4/1

12

3 0
3 years ago
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Determine the height
tangare [24]

Answer:

The height of the model is 138 cm.

Step-by-step explanation:

Simply multiply the height by the scale factor.

230*0.006

= 1.38 m

We need to convert this measure to centimeters. Centimeters are 1/100 of a meter. Therefore, we can multiply 1.38 meters by 100 to find how many centimeters it is equal to.

1.38*100 = 138

The height of the model is 138 cm.

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3 years ago
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Toby goes on holiday to Geneva, Switzerland. In Geneva, Toby sees a watch costing 193.75 CHF (Swiss Francs). In Manchester, an i
KonstantinChe [14]

Answer:

The watch is cheaper in Geneva, Switzerland by a value of £20

Step-by-step explanation:

To get the city in which the watch is cheaper, what we need to do is to express the price of the watch in the same currency.

Since pounds is also used in the b part of the question, it would be easier working with it.

In Geneva, the price of the watch is 193.75 CHF

from our conversion formula;

£1 = 1.55 CHF

£x = 193.75 CHF

We cross multiply to get the value of x

(193.75 * 1)/1.55

= 193.75/1.55 = £125

We can see that the watch costs less in Geneva and higher in Manchester

By how much is it cheaper?

We can calculate this by subtracting the value in Geneva from the value in Manchester

That would be 145-125 = £20 cheaper

3 0
3 years ago
The measure of an angle is 72°. what is the measure of a supplementary angle?
olga2289 [7]
That would be 180 - 72  = 108 degrees
7 0
3 years ago
Solve the literal equation 2a - b = 3b – a for a .<br> help pls ‍
VLD [36.1K]

Answer:

a = 4/3 b

Step-by-step explanation:

2a - b = 3b – a

Add a to each side

2a+a - b = 3b – a+a

3a -b = 3b

Add b to each side

3a -b+b = 3b+b

3a = 4b

Divide each side by 3

3a/3 = 4b/3

a = 4/3 b

4 0
3 years ago
Read 2 more answers
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