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lana [24]
3 years ago
9

Graph the system of linear inequalities.

Mathematics
1 answer:
Sonbull [250]3 years ago
5 0
Im imperfect linear :( line grafh
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Can somebody plz help me out here and answer all these correctly (only if u remmeber how to do this) thx sm! :3
trapecia [35]

Answer:

i do no sorry plz i have exam in online so sorry

6 0
3 years ago
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A researcher at a major clinic wishes to estimate the proportion of the adult population of the United States that has sleep dep
Thepotemich [5.8K]

Answer: n = 600.25 ≈ 601 ( sample size)

the minimum sample size of the adults in United State who have sleep deprivation  is 601

Step-by-step explanation:

Given that;

the confidence level = 95% = 0.05

the Margin of error E = 4% = 0.04

∴  level of significance ∝ = 1 - C.L

∝ = 1 - (95/100)

= 0.05

Z∝/2 = 0.05/2 = 0.025

Z-critical value at 95% confidence level is OR level of significance at 0.025 = 1.96 (z-table)

Now to calculate the sample size, we say

n = (Z(critical) / M.E )² P ( 1 - P)

now we substitute

n =  (1.96 / 0.04)² × 0.5 ( 1 - 0.5)

n = 2401 × 0.5 × 0.5

n = 600.25 ≈ 601

Therefore the minimum sample size of the adults in United State who have sleep deprivation  is 601

6 0
3 years ago
A large truck has two fuel tanks, each with a capacity of 150 gallons. Tank 1 is half full, and Tank 2 is empty.
12345 [234]

Answer:

1) G(t) = 75 + \frac{23}{4}t\\

2) After 8 minutes delivering fuel the tanks will have 121 gallons of fuel

Step-by-step explanation:

1) For generating the equation we have to take into account that in the tanks there is a initial volume of fuel that corresponds to 75 gallons, as it is stated that tank one is half full. As the capacity for tank 1 is of 150 gallons, half of the tank equals to:

\frac{150}{2} = 75 gallons

Now we have to convert the rate of delivery that is expressed as a mixed number to an improper fraction so:

5\frac{3}{4} = \frac{(5x4)+3}{4} = \frac{23}{4}

Then the pumping rate is of 23/4 gallons per minute, to get how many gallons are in the tank we just need to multiply this rate by the time in minutes, and as there is an initial volume we have to add it, so we have the following equation:

G(t) = 75 + \frac{23}{4}t\\

2) To know how much fuel is in the tank after 8 minutes we have to replace this time in the previous equation so we have

G(t) = 75 + \frac{23}{4}t\\G(8) = 75 + \frac{23}{4}(8)\\G(8) = 75 + 23(2)\\G(8) = 75 + 46\\G(8) = 121 gallons

After 8 minutes delivering fuel the tanks will have 121 gallons of fuel

8 0
2 years ago
First right answer will get brainlist
creativ13 [48]
m- \frac{3}{4}=7 \frac{1}{8}   \\  \\ m= \frac{57}{8}+ \frac{3}{4}= \frac{57+6}{8}=    \frac{63}{8}= 7 \frac{7}{8}
7 0
3 years ago
What is a ratio table? Please help soon. I am confused
alekssr [168]
We're displaying ratios<span> in a </span>table<span> format here, and then asking: given a </span>ratio<span>, solve for equivalent </span>ratios<span>. Here are a few examples to practice on. Created by Sal Khan. ... Practice: </span>Ratio tables<span>. Solving </span>ratio<span> problems with graph.</span>

7 0
3 years ago
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