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3 years ago

Guys please hurry this is the only question i need a right answer on, promise to give brainliest to the right answer

Mathematics

1 answer:

Zanzabum3 years ago

7 0

Explanation:

If $g(x) = x^2 + 5x,$ then

$g(-6m) = (-6m)^2 + 5(-6m)$

$\;\;\;\;\;\;\;\;\;= 36m^2 - 30m$

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The purpose of Radom sampling in a is to ensure what?

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It is to insure the experiment does not have bias.

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3 years ago

The figure shows a cylinder of diameter 12cm and height = 15cm. A hole in the shape of cone is bored into one of its end. If the

Lisa [10]

Answer:

$\bold{495\pi} \approx \bold{1555.088 cm^3}$

Step-by-step explanation:

There was no figure but the question is clear

Volume of a cylinder is given by the formula $\bold{\pi r^2h}\\$

where r is radius of base of cylinder, h is the height

Volume of a cone is given by $\bold{\frac{1}{3} \pi r^2 h}$

where r is the radius of base of cone, h is the height

The radius of the cylinder = $\frac{1}{2}$ (diameter) = $\frac{1}{2}$ (12) = 6cm

Height of cylinder = 15cm

Volume of cylinder $V_{cyl} = \pi (6)^2 15 = \pi (36)15 = \bold{540\pi}$

Radius of cone = $\frac{1}{2}$ (radius of cylinder) = $\frac{1}{2}$ (6) = 3 cm

Height of cone same as height of cylinder = 15cm

Volume of cone, $V_{cone} = \frac{1}{3}\pi r^2 h = \frac{1}{3}\pi (3)^2 15 = \frac{1}{3}(9)15\pi = \bold{45\pi}\\$

Difference is the volume of the remaining solid

$V_{cyl} - V_{cone} = 540\pi - 45\pi = \bold{495\pi} \approx \bold{1555.088 cm^3}$

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1 year ago

Point F is located at (3, -2) on the grid. Which coordinate pair is located 5 units from Point F?

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(3,-8)
You move down from those coordinates
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3 years ago

Scrat [10]

If two similar triangles have side lengths 3cm and 7cm then we can determine that the scale factor for the lengths is: 7/3

Now, we have to work out the area scale factor !

This is simple, since area is given in cm² then all we have to do is square our original scale factor!

So,

7/3² = 49/9

So, we can say that the ratio of the area would be:

x : 49/9x

Hope this helps! <3

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3 years ago

How to do mixed number math

Naddik [55]

2 and 3/4 is a mixed number and the decimal of it is 2.75

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