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photoshop1234 [79]
3 years ago
15

Which of the following is an irrational number?

Mathematics
1 answer:
Serhud [2]3 years ago
6 0
A. 1.9 is an irrational number
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A salesman gets a commission of 2.4% on sales up to sh. 100,000. He gets an additional commission of 1.5% on sales above this. C
emmainna [20.7K]

Answer:

Sh. 10,920

Step-by-step explanation:

Since the sales is above sh. 100,000,his commission is (2.4+1.5) 3.9%.

3.9% of 280,000= 10920.

Therefore, his commission is sh. 10,920

6 0
4 years ago
During a test period, an experimental group of 10 vehicles using an 85 percent ethanol-gasoline mixture showed mean CO2 emission
Zinaida [17]

Answer:

-1.683

Step-by-step explanation:

Given :

Group 1 :

x1 = 667 ; n1 = 10 ; s1 = 20

Group 2 :

x2 = 679 ; n2 = 14 ; s2 = 15

The test statistic assuming equal variance :

x1 - x2 / √[Sp² * (1/n1 + 1/n2)]

sp² = [(n1 - 1)*s1² + (n2 - 1)*s2²] ÷ (n1 + n2 - 2)

Sp² = [(10 - 1)*20² + (14 - 1)*15²] = 296.59

Test statistic =

(667 - 679)/ √[296.59 * (1/10 + 1/14)]

-12 / 7.1304978

Test statistic = - 1.682

8 0
3 years ago
Which set is closed under multiplication?
Sav [38]
I think the answer is D
5 0
3 years ago
Joe spent 15/22 of his pocket money in a story book which costs $75. How many pocket money did he have at first?
ehidna [41]

Answer:

$51.1

Step-by-step explanation:

If Joe spent 15/22 of his pocket money in a story book which costs $75, he had $51.1 at first.

15/22 of 75 = 51.1363636364 or 51.1

6 0
4 years ago
Read 2 more answers
110$ for 16ft find the unit rate ​
Neporo4naja [7]

Answer:

6.875 dollars per feet

Step-by-step explanation:

110/16

6.875

8 0
3 years ago
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