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3 years ago

James types 25 words per minute. He spends 15 minutes typing his homework. What is the domain of this situation?

Mathematics

1 answer:

Law Incorporation [45]3 years ago

7 0

Answer:

1. All numbers between, including 0 and 15.

Step-by-step explanation:

The domain is the independent variable (x), so in this case, it's be the amount of time James spent typing. James types for 15 minutes, so of course 0 and 15 have to be included, as it'll give a complete graph of what he's done so far.

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Last time Martha made fruit punch, she used x cups of pineapple juice and y cups of cranberry juice. What expression represents

snow_tiger [21]

Answer:

x + y

Step-by-step explanation:

Cups of pineapple juice = x

+Cups of cranberry juice = y

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3 years ago

10(8x^2-8x) 10(8x 2 −8x)

Law Incorporation [45]

Answer: 6400x² · (x - 1)²

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In our case, the common base is (x-1) and the exponents are:

1, as (x-1) is the same number as (x-1)1

And 1, as (x-1) is the same number as (x-1)1

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3 years ago

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Select proportional or not proportional to correctly classify the pair of ratios. 1.2/3 and 1.8/4.5

Gnesinka [82]

Answer:

Proportional.

Step-by-step explanation:

Find the cross products. If they are same, then they are proportional.

$\dfrac{1.2}{3} = \dfrac{1.8}{4.5}$

Cross multiply,

1.2 * 4 .5 = 3*1.8

5.40 = 5.4

So, they are proportional.

Multiply the numerator and denominator of 1.2/3 by 1.5

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From this we come to know they are proportional

1.2 : 3 :: 1.8 : 4.5

Product of means = 3*1.8 = 5.4

Product of extremes = 1.2*4.5 = 5.4

Product of means = product of extremes. So, they are proportional.

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2 years ago

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7 cm should be correct

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3 years ago

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ratelena [41]

X/6=7

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