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brilliants [131]
3 years ago
7

Which of the following systems of inequalities has point D as a solution? f(x) = 3x+4

Mathematics
1 answer:
Alex73 [517]3 years ago
8 0

I think is this one
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Quadrilateral WXYZ is on a coordinate plane. Segment XY is on the line x − 3y = −12, and segment WZ is on the x − 3y = −6. Which
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Answer:

Equation shown

Step-by-step explanation:

Eq(1): x-3y=-12

X=-12+3y

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Eq(2): x-3y=-6

X=-6+3y

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The speed of a sparrow is x km/h in still air. When the
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Answer:

x = 5m/s

Step-by-step explanation:

Distance flying out = 12 km  (headwind)

Distance flying back = 12 km (tailwind)

total distance = 12 + 12 =24 km

wind speed = 1km/h

speed going out (with headwind) = (x - 1) km/h

speed coming back (with tailwind) = (x + 1) km/h

Time taken to go out = distance going out / speed going out

= 12 / (x-1)

Time taken to come back = distance coming back / speed coming back

= 12 / (x+1)

total time = time taken to go out + time taken to come back

5 =[ 12/(x-1) ] + [ 12/(x-1)]

expanding this, we will get

5x² - 24x - 5 = 0

solving quadratic equation, we will get

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4 0
3 years ago
Solve for x.<br><br>x = ___<br><br>27<br>33<br>30​
kirill [66]
The answer is Answer 30 i think
4 0
2 years ago
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In a particular class of 27 students,17 are men.what fraction of the student in the class are men
Evgen [1.6K]
p \% \ of \ 27=17 \\\\ \frac{p}{100}*27=17 \\\\ \frac{p}{100}=\frac{17}{27} \\\\ p=\frac{100*17}{27} \\\\ \boxed{p=\frac{1700}{27}}
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irinina [24]

Answer:

C, -50*hours+475

Step-by-step explanation:

We are trying to get the total distance left, so we are subtracting the distance traveled from the total. If we travel at 50 miles per hour then the distance traveled is equal to 50*hours and if you subtract that from the total you ahve the distance left.

3 0
3 years ago
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