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3 years ago

What is 3/5 times 20

Mathematics

1 answer:

igor_vitrenko [27]3 years ago

3 0

First make 20 into a fraction, then solve; 3/5 · 20/1. 60/5 = 12. Hope that helps!

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Find k so that the following function is continuous on any interval: . . f(x)=kx if 0<=x<3 and f(x)=8x^2 if 3<=x. . K=?

Tasya [4]

In finding the value of this inequality first is to substitute the X to the F(x) so that it would be rearrange to get the value of k. So if 3<=x, K is directly proportional to X so it means that K >=3

8 0

3 years ago

Suppose that a toy car moving at 7.20 m/s is going around a track that has a radius of 1.50 m. What acceleration will the car ex

wel

Answer:

$a=34.56\ m/s^2$

Step-by-step explanation:

Given that,

Speed of a toy car, v = 7.2 m/s

Radius of the circular track, v = 1.5 m

We need to find the acceleration of the car. When an object moves in a circular path, it will have centripetal acceleration. It can be given as follows :

$a=\dfrac{v^2}{r}\\\\a=\dfrac{(7.2)^2}{1.5}\\\\=34.56\ m/s^2$

So, the centripetal acceleration of the toy car is $34.56\ m/s^2$ . Hence, the correct option is (c).

6 0

3 years ago

Helpppp, I need somebody Simplify √3/10.

maks197457 [2]

Answer:

$\frac{\sqrt{30} }{10}$

Step-by-step explanation:

Simplify the radical by breaking the radicand up into a product of known factors.

3 0

3 years ago

Help on the second graph

Deffense [45]

Answer:

first graph:

function.

Not one-one

onto

Second graph:

Function

one-one

not onto.

Step-by-step explanation:

We know that a graph is a function if any vertical line parallel to the y-axis should intersect the curve exactly once.

A graph is one-one if any horizontal line parallel to the x-axis or domain should intersect the curve atmost once.

and it is onto if any horizontal line parallel to the domain should intersect the curve atleast once.

Hence, from the first graph:

if we draw a vertical line parallel to the y-axis then it will intersect the graph exactly once. Hence, the graph is a function.

But it is not one-one since any horizontal line parallel to the domain will intersect the curve more than once.

But it is onto, since any horizontal line parallel to the domain will intersect the curve atleast once.

Second graph

It is a function since any vertical line parallel to the co-domain will intersect the curve exactly once.

It is not one-one since any horizontal line parallel to the x-axis does not intersect the graph atmost once.

It is not onto, since any horizontal line parallel to the domain will not intersect the curve atleast once.

7 0

4 years ago

Semenov [28]

Bro what are you saying my guy

7 0

3 years ago