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3 years ago

Simplify the expression. -5a + 3b + 8a

Mathematics

1 answer:

Vinil7 [7]3 years ago

8 0

-5a + 3b + 8a = 3a + 3b

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You are walking along a path y= 2x + 12 and your

UNO [17]

Answer:

(-1,10)

Step-by-step explanation:

At the point when the paths cross, the respective x and y values of each equation will be equal.

Your path is y=2x+12, and your friends path is 4x+y=6. Sub 2x+12 in for y (from your path's equation) into your friends equation to find the value of x:

4x+2x+12=6

6x=-6

x=-1

y=2x+12

y=2(-1)+12=10

So you will cross paths at (-1,10)

3 0

3 years ago

Find the volume of the cylinder if the height is 3 mm and the diameter is 40 mm. Leave the answer in terms of it.

KiRa [710]

The Volume of cylinder is 3770 cubic millimeters

But, the correct option is not available in options given.

Step-by-step explanation:

Height of cylinder = 3mm

Diameter of cylinder = 40mm

Volume of cylinder = ?

The formula used to find Volume of cylinder is:

$Volume = \pi r^2h$

Putting values in the formula:

Since we need radius,

radius = diameter/2

radius = 40/2

radius = 20 mm

So,

$Volume = \pi r^2h\\Volume = 3.14*(20)^2*3\\Volume = 3.14*400*3\\Volume= 3769.91 or \,\,\,Volume\approx 3770\,\,cubic\,\,millimeters$

The Volume of cylinder is 3770 cubic millimeters

But, the correct option is not available in options given.

Keywords: Volume of cylinder

Learn more about Volume of cylinder at:

#learnwithBrainly

6 0

3 years ago

I need with explanation

Vitek1552 [10]

Which of the following (1, 16, 27, 81) is not a square number?

5 0

2 years ago

What does an r value of −1 represent in correlation?

BARSIC [14]

It means the scatter plot is a line with negative slope. The relation is perfectly described by a linear equation.

4 0

3 years ago

What is the equation 3y-6x=9 written in the form y=mx+b

larisa [96]

<span>3y-6x=9
</span><span>3y = 6x + 9
y = 2x + 3

answer

</span> y = 2x + 3

4 0

3 years ago

Read 2 more answers