3 years ago

Express this number in scientific notation. 31 billion

Mathematics

1 answer:

Nadusha1986 [10]3 years ago

4 0

Answer:

3.1 * 10^10

Step-by-step explanation:

You might be interested in

Which three steps are correct when solving this quadratic equation by completing the square? X^2-10x=39

sergey [27]

Step-by-step explanation:

Any answer that involes,

Step 1: Complete the Square

${x}^{2} - 10x = 39$

$( \frac{ - 10}{2} ) {}^{2} = 25$

${x}^{2} - 10x + 25 = 64$

Step 2: Turn the left side into a binomial

$(x - 5) {}^{2} = 64$

Step 3: Solve for x.

$x - 5 = + - 8$

$x - 5 = 8$

$x = 13$

$x - 5 = - 8$

$x = - 3$

X=-3 or X=13

4 0

3 years ago

In the year 2000 there were 8.7 deaths per 1000 residents in the United States is there were 281,421,906 residence in the US dur

qaws [65]

Answer:

448370.58

Step-by-step explanation:

6 0

3 years ago

Everything I need answers please help me my mom said if i don’t finish I cannot go to targert

Contact [7]

Attached solutions. Was not able to see the last two. Send the fraction and I will add them in.

8 0

3 years ago

All of the following are equivalent except:<br> 4%<br> 04<br> 1/25

qaws [65]

4 is not equivalent to 4% or 1/25

3 0

3 years ago

Help pls, will choose brainliest if explanation is provided

Nookie1986 [14]

Answer:

$solve \: when \: (f + g) \:(4) \\ \\ first \: solve \: for \: f(x) \\ \: \\ solution \: .... \\ \\ f(x) = 4x - 3 \\ f(4) = 4(4) - 3 \\ f(4) = 16 - 3 \\ f(4) = 13 \\ \\ \\ now \: solve \: for \: g(x) \\ \: \\ solution \: .... \\ \\ g(x) = {x}^{3} + 2x \\ g(x) = {(4)}^{3} + 2(4) \\ g(x) = 64 + 8 \\ g(x) = 72 \\ \\ (f) - (g) = 13 - 72 \\ (f) -(g) = -59$

8 0

3 years ago