What will be the result when 345.61 is multiplied by 10?

vovangra [49]

If $2.35 is the unit rate, the estimated one is $2.40 if it is to the nearest tenth, $1.00 to the nearest ones. I may be wrong.

4 0

3 years ago

If x=4 and y=3 what is the value of 5x+2y-6 show how you got the answer.

Oksana_A [137]

Answer:

Given x = 4 and y = 3

Step-by-step explanation:

5x +2y -6 = 5*4 + 2*3 -6

= 20 + 6 - 6

= 20

7 0

4 years ago

Read 2 more answers

Help with numer 5 please. thank you

Alex17521 [72]

Answer:

See Below.

Step-by-step explanation:

We are given that:

$\displaystyle I = I_0 e^{-kt}$

Where I₀ and k are constants.

And we want to prove that:

$\displaystyle \frac{dI}{dt}+kI=0$

From the original equation, take the derivative of both sides with respect to t. Hence:

$\displaystyle \frac{d}{dt}\left[I\right] = \frac{d}{dt}\left[I_0e^{-kt}\right]$

Differentiate. Since I₀ is a constant:

$\displaystyle \frac{dI}{dt} = I_0\left(\frac{d}{dt}\left[ e^{-kt}\right]\right)$

Using the chain rule:

$\displaystyle \frac{dI}{dt} = I_0\left(-ke^{-kt}\right) = -kI_0e^{-kt}$

We have:

$\displaystyle \frac{dI}{dt}+kI=0$

Substitute:

$\displaystyle \left(-kI_0e^{-kt}\right) + k\left(I_0e^{-kt}\right) = 0$

Distribute and simplify:

$\displaystyle -kI_0e^{-kt} + kI_0e^{-kt} = 0 \stackrel{\checkmark}{=}0$

Hence proven.

4 0

3 years ago

What is the additive inverse of 38

Mumz [18]

-1/38 is your inverse of 38

hope this helps

4 0

3 years ago

Read 2 more answers

If there are 9 girls and 11 boys in a class, what percentage of the class are girls

viva [34]

1. Find the total number of class members
9 + 11 = 20

2. Find 9 as a percentage of 20
9 / 20 = 0.45
0.45 x 100 = 45%

45% of the class are girls.

6 0

3 years ago