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3 years ago

12

Two fifths of a number, subtracted from 2

1 answer:

vovangra [49]3 years ago

5 0

The answer in decimal form is <span>: -1.6</span>

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A snail traveled 3 over 8, of an inch in 3 minutes. How many inches can the snail travel in 9 minutes? Express the answer as a d

Elanso [62]

So, first of all, let's convert the fraction $\frac{3}{8}$ into a decimal, which would be 0.375 (3 divided by 8)

The snail travels this far in 3 minutes. To find out how far it travels in nine minutes, we have to find out how many times 3 goes into 9.

9 / 3 = 3

Now. we simply multiply our decimal by three in order to get our answer!

0.375 x 3 = 1.125 inches

The answer is 1.125 inches!

3 0

3 years ago

Identify whether the equation represents an exponential growth or exponential decay function.1. y = 1/4 (1/e)^-2x2. y = (1/e)^4x

zvonat [6]

The general formula for exponential growth and decays is:

$y=y_0e^{kx}$

if k>0 then then it is an exponential growth function. If k<0 then the function represents an exponential decay.

Now we need to classify each of the functions:

1.

The function

$y=\frac{1}{4}(\frac{1}{e})^{-2x}$

can be wrtten as:

$\begin{gathered} y=\frac{1}{4}(e^{-1})^{-2x}^{} \\ =\frac{1}{4}e^{2x} \end{gathered}$

comparing with the general formula we notice that k=2, therefore this is an exponential growth.

2.

The function

$y=(\frac{1}{e})^{4x}$

can be written as:

$\begin{gathered} y=(\frac{1}{e})^{4x} \\ y=(e^{-1})^{4x} \\ y=e^{-4x} \end{gathered}$

comparing with the general formula we notice that k=-4, therefore this is an exponential decay.

3.

The function

$y=2e^{-x}+1$

comparing with the general formula we notice that k=-1, therefore this is an exponential decay.

5 0

1 year ago

Gonna need help answering this <br> Y=1/2x+7<br> Y=x-8

Nata [24]

What is the problem?

3 0

3 years ago

Read 2 more answers

Write the next three terms of the arithmetic sequence.

Inga [223]

Answer:

36, 44, 52

Step-by-step explanation:

Just add 8 to 28 = 36

Add 8 to 36 = 44

Add 8 to 44 = 52

8 0

2 years ago

Read 2 more answers

A regular tetrahedron is a special triangular pyramid with four congruent faces that are equilateral triangles. A net of a regul

WINSTONCH [101]

Answer:

the tetrahedron has two bases

Step-by-step explanation:

a tetrahedron has only one bases which is a triangle

so this is not true

hope this helps

5 0

3 years ago