All categories

3 years ago

Which statement describes how the Van Allen belts are formed?

Mathematics

1 answer:

Leya [2.2K]3 years ago

4 0

Answer:

when high-energy particles from the Sun bounce off Earth’s magnetic field

You might be interested in

Solve for u. -6=-2u +4(u-5)

sergij07 [2.7K]

Answer: u=7

Step-by-step explanation:

-6= -2u+4(u-5)

-6= -2u+4u-20

-6= 2u-20

14= 2u

7=u

5 0

3 years ago

Read 2 more answers

Solve for x. x + 1/2 = 3/4 x = 1/4 x = -1/4 x = -1/2 x = 1/2

DanielleElmas [232]

x + 1/2 = 3/4
x + 2/4 = 3/4
x = 3/4 - 2/4
x = 1/4

answer
x = 1/4

7 0

3 years ago

Read 2 more answers

11-(3x-6)+2(4x+5)-x simplify

Tamiku [17]

Answer:

HOPE THAT WILL HELP YOU

3 0

3 years ago

The graphs of $f$ and $g$ are shown. Describe two different transformations from the graph of $f$ to the graph of $g$ . 2 lines

zhenek [66]

Let's convert the word descriptions into mathematical equations first for illustration.

f(x) = x^2 - x - 12

g(x) = -2.5x - 2

Then, we equate g(x) and f(x). The final equation becomes

x^2 - x - 12 = -2.5x - 2

Then, we simplify by transposing and combining like terms.

x^2 - x + 2.5x -12 + 2 = 0

x^2 + 1.5x - 10 = 0

Since this is a quadratic equation, we find the roots by using the quadratic formula

where a = 1, b = 1.5 and c=-10

Thus, the answer is x = 2.5, -4.

5 0

2 years ago

A box of candy hearts contains 52 hearts, of which 19 are white, 10 are tan, 7 are pink, 3 are purple, 5 are yellow, 2 are orang

laiz [17]

Answer-

a. Probability that three of the candies are white = 0.29

b. Probability that three are white, 2 are tan, 1 is pink, 1 is yellow, and 2 are green = 0.006

Solution-

There are 19 white candies, out off which we have to choose 3.

The number of ways we can do the same process =

$\binom{19}{3} = \frac{19!}{3!16!} = 969$

As we have to draw total of 9 candies, after 3 white candies we left with 9-3 = 6, candies. And those 6 candies have to be selected from 52-19 = 33 candies, (as we are drawing candies other than white, so it is subtracted)

And this process can be done in,

$\binom{33}{6} = \frac{33!}{6!27!} =1107568$

So total number of selection = (969)×(1107568) = 1073233392

Drawing 9 candies out of 52 candies,

$\binom{52}{9} = \frac{52!}{9!43!} = 3679075400$

∴P(3 white candies) = $\frac{1073233392}{3679075400} =0.29$

Total number of ways of selecting 3 whites, 2 are tans, 1 is pink, 1 is yellow, and 2 are greens is,

$\binom{19}{3} \binom{10}{2} \binom{7}{1} \binom{5}{1} \binom{6}{2}$

$=(\frac{19!}{3!16!}) (\frac{10!}{2!8!}) (\frac{7!}{1!6}) (\frac{5!}{1!4!}) (\frac{6!}{2!4!})$

$=(969)(45)(7)(5)(15)=22892625$

Total number of selection = 3 whites + 2 are tans + 1 is pink + 1 is yellow + 2 greens = 9 candies out of 52 candies is,

$\binom{52}{9}=\frac{52!}{9!43!} =3679075400$

∴ P( 3 whites, 2 are tans, 1 is pink, 1 is yellow, 2 greens) =

$\frac{22892625}{3679075400} = 0.006$

6 0

4 years ago