All categories

4 years ago

Please help 15 points and brilliant

Mathematics

1 answer:

Sholpan [36]4 years ago

4 0

It would be the 3rd answer or f(x)= 0.5x2, f(x)=2x2, f(x)=-10x2.

You might be interested in

Evaluate.

Daniel [21]

Answer:

d) 192

Step-by-step explanation:

Your calculator can do this for you.

Or, you can simplify to

$12\cdot\dfrac{4^{-2}}{4^{-4}}=12(4^{-2+4})=12(4^2)=192$

3 0

3 years ago

Please answer the questions!!!please!!!!!

bearhunter [10]

Answer:

I think #5 is c.

Step-by-step explanation:

because it says 50% without decimal and it's doesn't equal to 1/2%

8 0

4 years ago

Read 2 more answers

The points A BC :(2, 2,1), :(1,1,3), :(2,0,5) − are the vertices of a right triangle. The radius of the sphere with center at th

ElenaW [278]

Answer:

r=1

Step-by-step explanation:

First we need to know the length of each side of the triangle, so we use the formula of the vector modulus:

$|AB|= \sqrt{(b_{1}-a_{1})^{2}+(b_{2}-a_{2})^{2}+(b_{3}-a_{3})^{2}$

By doing so, we find:

$|AB|=\sqrt {6}\\|BC|=\sqrt {6}\\|AC|=2\sqrt {5}$

With this we know that the triangle is not right, but, we assume the longest side as the hypotenuse of the problem.

As we have two equal sides, we know that the line between point |AB| and the center of the hypotenuse is perpendicular, therefore, we can calculate it using Pythagoras theorem:

$|BC|^{2}=r^{2}+(\frac{|AC|}{2})^{2}\\\\r^{2}=|BC|^{2}-(\frac{|AC|}{2})^{2}\\\\r^{2}=(\sqrt{6})^{2}- (\frac{2\sqrt{5}}{2})^{2}\\\\r^{2}=6-5=1\\r=1$

4 0

3 years ago

If 6000 people voted in the election, how many were from 18 to 29 years old?

Troyanec [42]

<span>the answer is 6047 i think

</span>

8 0

3 years ago

Help me please. i will mark brainliest ‼️

Alik [6]

Answer:

can i have a thxs because this question has been here for a week plz

Step-by-step explanation:

8 0

3 years ago