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4 years ago

Can anyone help me out please!!!

Mathematics

1 answer:

Yuliya22 [10]4 years ago

5 0

Hope this helps you!!!!

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If(3y) =x -2x squared find each value

Dafna1 [17]

Answer:

Step-by-step explanation:y=-1

X=3/2 or x=-1

4 0

3 years ago

A rental car agency rents cars for $32 per day . They also charge $0.15 per mile driven . If you are taking a 5-Day trip and hav

Vilka [71]

32 dollars per day for 5 days, the cost is 32*5=160 dollars.
0.15 dollars per mile for x miles, the cost is 0.15x
the sumis less than or equal to 250: 160+0.15x≤250
0.15x≤90
x≤600
the maxim number of miles is 600.

4 0

3 years ago

Almost done please help

FinnZ [79.3K]

Answer:

$a_{n} =1.7n+(n-1)0.5$

Step-by-step explanation:

I hope this helps.

4 0

3 years ago

Read 2 more answers

If tommy rode his bike 4.3 miles a day, 3 days a week for 5 years delivering news papers and he dropped 22.7 newspapers every 1/

geniusboy [140]

Answer:

277 848 newspapers.

Step-by-step explanation:

Find out how much newspaper he drops for 4.3 miles.

1/4 = 0.25

4.3 miles ÷ 0.25 = 17.2

= 17

17 x 22.7 = 385.9

(Newspapers be dropped a day)

1 week of dropping newspapers = 385.9 x 3 = 1157.7

1 month of dropping newspapers = 1157.7 x 4 =

4630.8

1 year = 12 months

5 years = 12 x 5 = 60 months.

5 years/60 months of dropping newspapers = 4630.8 x 60 = 277 848

Tommy dropped 277 848 newspapers.

6 0

3 years ago

A local school board member randomly sampled private and public high school teachers in his district to compare the proportions

levacccp [35]

Answer:

0.025 ;

(-0.7198 ; 0.7698)

Step-by-step explanation:

From the table :

_____________ private schls ___ public schls

Sample size, n _____ 80 __________ 520

P, NBC teachers ___ 0.175 ________ 0.150

P1 = P of private school teachers

P2 = P of public school teachers

Difference in proportion :

P1 - P12 = 0.175 - 0.150.= 0.025

The 90% confidence interval for 2 - sample proportion :

C.I = (p1-p2) ± [Zcritical * √(p1(1-p1)/n1 + (p2(1-p2)/n2)]

Zcritical at 90% = 1.645

C.I = 0.025 ± [1.645 * √((0.175*0.825)/80 + (0.150*0.850)/520)]

C.I = 0.025 ± [1.645 * √(0.0018046875 + 0.0002451)]

C.I = 0.025 ± 1.645 * 0.0452755

C.I = 0.025 ± 0.07448

C.I = (-0.7198 ; 0.7698)

3 0

3 years ago