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Yuri [45]
3 years ago
14

Are all rational equation solutions valid?

Mathematics
1 answer:
Semenov [28]3 years ago
8 0

Answer:

a

Step-by-step explanation:

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Jack is performing an experiment in a laboratory. The resulting rise in temperature, t(x), of the chemical under observation, ov
Scorpion4ik [409]
I'd say option D because you can just tell right off the bat that if x = 0, then f(x) = 43.75.
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You go to the mall to make some purchases. You buy 3 dresses which cost $59.99 each and a pair of shoes that cost $75. What is t
mina [271]
Combine costs
59.99(3) + 75 = 179.97 + 75
179.97 + 75 = $254.99 (total cost)
Now add tax: 8% = 0.08
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6 0
2 years ago
How do you find the fraction of 0.35
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Answer:

\frac{7}{20}

Step-by-step explanation:

0.35 is the same as 35/100

which can be simplified to 7/20

4 0
2 years ago
How many ways can 6 people be chosen and arranged in straight line if there are 8 people to choose from? a. 48.b. 720.c. 20, 160
Ipatiy [6.2K]

Answer:

<h2>C. <em>20,160</em></h2>

Step-by-step explanation:

This question bothers on permutation since we are to select a some people out of a group of people and then arrange in a straight line. If r object are to be arranged in a straight line when selecting them from n pool of objects. This can be done in nPr number of ways.

nPr = n!/(n-r)!

Selection of 6 people out of 8 people can therefore be done in 8C6 number of ways.

8P6 = 8!/(8-6)!

8P6 = 8!/2!

8P6 = 8*7*6*5*4*3*2!/2!

8P6 = 8*7*6*5*4*3

8P6 = 56*360

8P6 = 20,160

<em>Hence this can be done in 20,160 number of ways</em>

5 0
3 years ago
Jan and Col club together a book of raffle tickets. They agree to share any prize they win in the ratio 2:3. When they win Jan g
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Answer:

  • £15

Step-by-step explanation:

For every £2 Jan gets, Cole gets £3.

10 ÷ 2 (Jan) × 3 (Cole) = 15

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2 years ago
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