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3 years ago

14

What does it mean for a function to have a root?

2 answers:

Vilka [71]3 years ago

5 0

Answer:

A function has a root when it crosses the x-axis, i.e. . A function can have more than one root, when there are multiple values for that satisfy this condition. The goal is to find all roots of the function (all values). In general we take the function definition and set to zero and solve the equation for .

ZanzabumX [31]3 years ago

3 0

Answer:

Step-by-step explanation:

A function has a root when it crosses the x-axis, i.e. . A function can have more than one root, when there are multiple values for that satisfy this condition. The goal is to find all roots of the function (all values). In general we take the function definition and set to zero and solve the equation for .

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A cuboid has side lengths 3cm, 4cm and 7cm. A cylinder with a height double that of the longest side of the cuboid has the same

mart [117]

Step-by-step explanation:

Longest side of cuboid: 7cm

Height of cylinder:

2 × 7 = 14 cm

Volume of cuboid:

7x3x4=84 $cm^3$

Volume of cylinder:

$84=14\pi r^2 \\r=\sqrt{\frac{6}{\pi} } \ \ \ cm\\r=1.38 \ cm\\$

Surface area of the cylinder:

$\pi r^2 + 2 \pi r h$

$6+2\pi (\sqrt{\frac{6}{\pi} } ) (14)$

=128 cm^2

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2 years ago

at the grocery store, 1/5 of the groceries are produce. of the produce, 2/3 is vegetables. what fraction of the groceries in the

avanturin [10]

66 is the anwer I think I'm not for sure I hope this helps and you get it right

7 0

3 years ago

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PLEASE HELP!!! I DONT HAVE ENOUGH POINTS TO POST MORE THAN ONCE!

Marat540 [252]

Answer:

-3.

Step-by-step explanation:

In the table, the y value goes down by -4 and then -2, for a total of -6.

We did this over a period of two units (To go from -1 to 1, we add 2).

-6/2 = -3.

-3 is the average rate of change over the interval.

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3 years ago

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Help, please! f(x)=x^2 what is g(x)?

Cloud [144]

Answer:

B

Step-by-step explanation:

If you substitute in the value x = 1, and y = 4 (based on the point given), (2x)^2 is the only expression that makes it work.

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2 years ago

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What is the mean height 81,88,69,65,87

Sauron [17]

Answer:

78

Step-by-step explanation:

add them all together and and divide by how many they are -thats the meaning of the mean

81+88+69+65+87=390

390divide by 5=78

i divided by 5 becasue there are 5 numbers

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2 years ago