3 years ago

-2/3c-9/5+14c+3/10 please help so confused!

Mathematics

2 answers:

zaharov [31]3 years ago

6 0

Not sure if this is the answer or not, but I think it's - 2/3c - 3/2 + 14c.

natita [175]3 years ago

3 0

Answer:1 4

Step-by-step explanation:

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The length of a rectangle is 7 meters more than four times its width if the area of the rectangle is 650 square meters, find the

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Let the width be x.
Width = x
Length = 4x + 7

The area is 650 m²

x(4x + 7) = 650
4x² + 7x - 650 = 0

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a = 4, b = 7, c = -650

$x = \dfrac{-7 \pm \sqrt{7^2 - 4(4)(-650} }{2(4)}$

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3 years ago

What is the mean of Variable A? Express answer to one decimal place.

Juli2301 [7.4K]

Variable A - horizontal axis ⇒ x
Variable B - vertical axis ⇒ y

points (x, y)
A B
1) 2 , 2
2) 2 , 8
3) 4 , 3
4) 5 , 1
5) 6 , 3
6) 7 , 5
7) 8 , 6
8) 9 , 2

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Mean is the average value of the data set. Add all the numbers in the data set and divide its sum by its count.

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