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a_sh-v [17]
3 years ago
8

Per ounce or 20 shells $9.27 for 48 oz. $4. 0.15 au shell

Mathematics
1 answer:
Vilka [71]3 years ago
6 0
My kinda stink bro right
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Lima has 9/10 gallons of paint for painting the birdhouse he sells at the craft each birdhouse required to 1/20 gallon of paint
grigory [225]
18 because 9/10÷1/20=18
4 0
3 years ago
1. The department of nature resources reports that a fish is unsafe to eat if the polychlorinated biphenol (PCB) concentration e
Hitman42 [59]

Answer:

H0 rejected as μ>4

and a fish is unsafe to eat from the lake.

Step-by-step explanation:

1)Let the null hypothesis be  H0 : mu ≤4 against the alternate Ha: mu > 4 ppb

H0: μ ≤4   against the claim Ha:  μ>4

2) X`= ∑x/ n= 2.9 +7.6+ 4.8+ 5.2+ 5.1+ 4.7+ 6.9+ 4.9+ 3.7+ 3.8/10

= 49.6/10= 4.96

The standard deviation can be calculated  sigma= 1.344767 ( using statistic calculator)

3) The significance level is taken to be  ∝=0.05

The value of z at 0.05 for 1 sided test is z >± 1.645

i.e the critical region is less than - 1.645 and greater than +1.645

4) Taking the distribution to be approximately normal

Z= x`- u / s/ √n

Z= 4.96-4/ 1.345/10

Z= 4.96-4/ 1.345/3.1622

Z= 0.96/0.4253

Z= 2.257

5) Since the calculated value of z = 2.257 falls in the critical region we reject our null hypothesis and conclude that true mean value of the PCB concentration is greater than 4 (ppb) and that a fish is unsafe to eat from the lake.

3 0
3 years ago
What is the value of x in the equation 2x + 3y = 36, when y = 6?<br> 8<br> 9<br> 27<br> 36
DanielleElmas [232]
9 - substitute y for 6, then subtract that from 36, which is 18. 18 divided by 2 is 9
4 0
3 years ago
Read 2 more answers
What about 6 8 and 19? What triangle is that( all inches )
stiks02 [169]
That would be a scalene triangle, because all three sides are different measurements. Equilateral means all 3 sides are equal and isocelese means that 2 sides are equal. Therefore it would have to be scalene
6 0
3 years ago
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Find value of y for given value of x. y=3x 2; x=0.5
Igoryamba
Y=3x2                                                                                                                            3x(0.5)=1.5+2=3.5 Y=3.5 
3(0.5)X2  1.5X2=3 Y=3
1.5/2=0.75 Y=0.75
1.5-2=-0.5   Y= -0.5
hope that helps . let me know plz                                                                                                                          
5 0
4 years ago
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