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4 years ago

What is | -3 + 9| A. -12 B. 12 C. 6 D. -6

2 answers:

lisabon 2012 [21]4 years ago

7 0

You see, the |x| symbols mean that whatever negative term inside will be switched to positive. But they are the lowest priority. so first solve -3 + 9 = 6. The absolute value of 6 is 6.

vovangra [49]4 years ago

3 0

The answer is C, 6. Because -3+9 is 6, and the absolute value of 6 is 6

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How much time does it take light to travel from the moon to the earth, a distance of 384000?

gulaghasi [49]

V = speed of light = 3 x 108 m/s

d = distance = 384000 x 103 m = 3.84 x 108 m

time taken = t = d/V = 3.84 x 108 /(3 x 108 ) = 1.28 sec

4 0

4 years ago

Im confused by this question, what is the answer

Veronika [31]

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3 years ago

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4 years ago

Read 2 more answers

1. Of the light bulbs available at a store, 42% are fluorescent, 23% are labeled as long life, and 12% are fluorescent and long

Novosadov [1.4K]

Answer:

Step-by-step explanation:

Given

42% bulbs are fluorescent

23 % bulbs are long life

12% bulbs are fluorescent and long life

(i)Selected Bulb is not Fluorescent $=1-P(bulb\ i\ fluorescent)$

$=1-0.42=0.58$

(ii)Selected light bulb is fluorescent given that it is labelled as long life

$P(Fluorescent\ given\ it\ long\ life)=\frac{P(fluorescent\ and\ long\ life)}{P(long\ life)}$

$P(Fluorescent\ given\ it\ long\ life)=\frac{0.12}{0.23}=0.52$

b.Fluorescent and long life events are not independent because if a bulb is fluorescent then it may be long life

4 0

4 years ago

A large cheese pizza at Poppy's Pizzeria costs $12.80 plus $1.25 for each topping. The cost of a large

almond37 [142]

Answer:

Part a) 2 toppings

Part b) $\$15.30$

Step-by-step explanation:

Part a) How many toppings need to be added to a large cheese pizza from Poppy's Pizzeria and Geo's Pizza in order for the pizzas to cost the same?

Let

x -----> the number of topping

y ----> the total cost of a large cheese pizza

we know that

Poppy's Pizzeria

$y=1.25x+12.80$ ----> equation A