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Ilia_Sergeevich [38]
3 years ago
14

PLEASE HELP ME! I need the answer as soon as possible!

Mathematics
1 answer:
Brums [2.3K]3 years ago
4 0

Answer:

y = -1

Step-by-step explanation:

We want the value of the function when x = -4

Go to where x = -4

The value is -1

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Monthly sales of a particular personal computer are expected to decline at the following rate of S'(t) computers per​ month, whe
Len [333]

Answer:

S(t) = -18t^\frac{5}{3}+2440

Company will take approximately 14 months

Step-by-step explanation:

Given function that shows the change rate of computers,

S'(t)=-30 t^{\frac{2}{3}}

Where,

t = number of months

On integrating,

\int S'(t) = -30\int t^{\frac{2}{3}} dt

S(t) = -30(\frac{t^{\frac{2}{3}+1}}{\frac{2}{3}+1})+C

S(t) = -30 (\frac{t^{\frac{2+3}{3}}}{\frac{2+3}{3}})+C

S(t) = -30(\frac{t^\frac{5}{3}}{\frac{5}{3}})+C

S(t) = -30(\frac{3t^\frac{5}{3}}{5})+C

S(t) =-18t^\frac{5}{3}+C

According to the question,

S(0) = 2,440,

\implies -18(0)^\frac{5}{3}+C=2440\implies C = 2440

Hence, the required function,

S(t) = -18t^\frac{5}{3}+2440

If S(t) = 1,000,

-18t^\frac{5}{3}+2440=1000

-18t^\frac{5}{3}=-1440

t^\frac{5}{3}=80

t = (80)^\frac{3}{5}\approx 13.86

6 0
3 years ago
Which of the following would be considered important in including in the summary of an experimental investigation?
Sedaia [141]

Hi There!

Answer:

A.) variables that were manipulated during the experiment

Least important to most important steps to include in a summary:

  1. variables that were manipulated during the experiment.
  2. list of all materials and equipment used in the experiment.
  3. number of scientists involved in the experiment.
  4. laboratory room number in which the experiment took place.

Hope This Helps :)

6 0
3 years ago
Read 2 more answers
Identify the initial value and rate of change for the graph shown. A coordinate plane graph is shown. A line is graphed that pas
egoroff_w [7]
Y int at (0,4).....thru points (4,1)
slope = (1 - 4) / (4 - 0) = -3/4
initial value 4, slope(rate of change) is -3/4 <==
=======================
y = 22,000x + 40,000
=======================
y = 12x + 48
slope(rate of change) = 12
=======================
(1,10)(2,8)
slope = (8-10) / (2-1) = -2/1 = -2

y = mx + b
8 = -2(2) + b
8 = -4 + b
8 + 4 = b
12 = b

slope(rate of change) = -2
initial value = 12
I am not getting any of ur answer choices ...
======================
y = x + 6
initial value = 6
8 0
3 years ago
Store A sells 11 bagels for 9.57 Store B sells bagels for 3.52. How do the unit rates compare?
Sloan [31]
First you put the numbers in this form:

11 Bagels = $9.57
________ _______
? Bagels   = $3.52

Now they look like fractions but you have to cross multiply them like this: 11 x $3.52 which makes $38.72 then you divide $38.72 by $9.57 which makes the answer that you have to find which is 4.04597701 or just to round 4 and then that will be your answer.
4 0
4 years ago
Find an equivalence to 23 in mod 8.
Zigmanuir [339]

23 = 24 - 1, so 23 = -1 = 7 mod 8

5 0
3 years ago
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