2 years ago

400.00 in scientific notation

Mathematics

1 answer:

mel-nik [20]2 years ago

8 0

400.00 in scientific notation would be 4×<span>10^2</span>

You might be interested in

Which of the slopes below represents a line that is perpendicular to the line =13+4 ?

dedylja [7]

Answer:

Step-by-step explanation:

7 0

3 years ago

133/28=x/4 <br> x=? <br> !!!!!!!!!!!!!!!!!!!!!

den301095 [7]

$\frac{133}{28}= \frac{x}{4} 
 \\ =\ \textgreater \ x= \frac{133*4}{28}=19$

7 0

3 years ago

A sample of 400 grams of radioactive substance decays according to the function A(t) = 400e^-.046t, where t is the time in years

algol13

Answer: There will be 0.04 grams will be left in the sample after 20 years.

Step-by-step explanation:

Since we have given that

$A(t)=400e^{-0.46t}$

Here, Initial amount of radioactive substance = 400 grams

We need to find the amount of substance that will be left in the sample after 20 years.

So, t = 20 years

So, it becomes,

$A(t)=400e^{-0.46\times 20}\\\\A(t)=400e^{-9.2}\\\\A(t)=0.04\ grams$

Hence, there will be 0.04 grams will be left in the sample after 20 years.

6 0

3 years ago

Albert deposits $1,228 in an account that pays 2.83% simple interest for five years.

yulyashka [42]

Answer:

Im not sure how to be honest.

Step-by-step explanation:

Im not sure how to be honest.

4 0

2 years ago

Ethan's taxable income is $87,525. Use this tax schedule to calculate the total amount he owes in taxes.

Reptile [31]

$18,617.75 is the answer
$87,525-$77,100=$10,425 (the amount over $77,100)
$10,425 x .28=$2,919 (the 28% taxed amount over $77,100)
$2,919+$15,698.75 (the already taxed amount in the chart)=$18,617.75

8 0

2 years ago