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mixer [17]
3 years ago
13

Need help on the yellow question

Mathematics
2 answers:
hodyreva [135]3 years ago
8 0
8/21 is the answer to the question
Viktor [21]3 years ago
8 0

Answer:

8/21

Step-by-step explanation:

Use the method called KCF, or Keep, Change and Flip for this question.

For this question, keep the first fraction of the equation the same, but flip the 2nd fraction of the denominator and the numerator. For example, you need to change it from 3/4 to 4/3.

So it's 2/7 x 4/3 = 8/21

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FInd the equation of a perpendicular line to y=-2 that passes through the points (4,-2)
Vedmedyk [2.9K]

Answer:

x = 4

Step-by-step explanation:

y=-2 is a horizontal line so x must be a vertical line through (4,-2)

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3 years ago
the 5th and 6th grade students at jackson middle school are going on a field trip. there are 6 classes in the fitth grade, and e
Mariulka [41]
No because there are 20 multiplied by 3 is 60. So the answer would be 60+144=204x12=2448 but the last answer was still correct
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Read 2 more answers
How do you do this???????????????????
Akimi4 [234]
The volume of water that goes into the hose is the same as the volume of water that comes out the nozzle. This means the velocity is inversely proportional to the area. The area is proportional to the square of the diameter.

Taken together, these facts mean that if the diameter is divided by a factor of 3, the velocity is multiplied by a factor of 3^2 = 9.

Nozzle velocity = 3^2 * entering velocity
.. = 9 * (4 m/s)
Nozzle velocity = 36 m/s . . . . . . . . . corresponding to selection A
7 0
3 years ago
The graph of a proportional relationship contains the point (-30, 18)
Elena L [17]

Answer:

k=-\frac{3}{5}

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form k=\frac{y}{x} or y=kx

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

we have the point (-30,18)

so

x=-30, y=18

Find the value of k

k=\frac{y}{x}

substitute

k=\frac{18}{-30}

Simplify

Divide by 6 both numerator and denominator

k=-\frac{3}{5}

4 0
3 years ago
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