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Reptile [31]
3 years ago
10

Expand: f(x) = x4 − x3 + x2 + x −

Mathematics
2 answers:
lilavasa [31]3 years ago
8 0

Answer:

7

7

21

30

Step-by-step explanation:

its right i got it on edge 2020

nikitadnepr [17]3 years ago
6 0

Answer:

(x+3)(x+2)

Step-by-step explanation:

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A climber on Mt Everest is 6000 meters from the start of his trail and at elevation 8000 meters above sea level. At x meters fro
sergeinik [125]

Answer:

h'(x) = 0.6 and Δx = 1 and 2

h(6001) = h(6000) + h'(6000)(1) = 8000 +0.6 = 8,000.6

h(6002) = h(6000) + h'(6000)(2) = 8000 + 0.6 (2) =8000 +1.2 = 8001.2

Explanation below:

Step-by-step explanation:

Based on the information given we have that when the climber is 6000 meters from the start, his elevation is 8000 meters above sea level.

We know that the function for elevation is given by h(x) where x is the number of meters from the start.

Therefore, h(6000) = 8000.

We also know that the derivative of a function tells us the reason of change at some point (or how fast a function is changing near that point). For this problem we have that h'(x) = 0.6. (<u>meaning that the elevation increases in 0.6 meters for every meter they hike further nearby the 6000 meters</u>)

We need to use the derivative at a point to estimate values of the function at nearby points

We're going to use h'(x)= 0.6. Δx= 1

h(6001) = h(6000) + h'(6000)(1) = 8000 +0.6 = 8,000.6

Therefore h (6001) = 8,000.6

Now for h'(x)= 0.6. Δx= 1

h(6002) = h(6000) + h'(6000)(2) = 8000 + 0.6 (2) =8000 +1.2 = 8001.2

Therefore h(6002) = 8001.2

6 0
3 years ago
Graph the function y=<img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D%20-2%2B5" id="TexFormula1" title="\sqrt{x} -2+5" alt="\sqr
ss7ja [257]

Answer: (3, 6)

Step-by-step explanation:

1. You have the following function:

y=\sqrt{(x-2)}+5

2. To find the point that lies on the graph of the function above, you can substitute the value of <em>x</em> given in the option; if you obtain the value of <em>y</em> shown in that option, then that point lies on the graph. Then, you have:

x=3

 y=\sqrt{(3-2)}+5=6

3. The point is (3,6), then it is lie on the graph.

7 0
3 years ago
In ΔJKL, the measure of ∠L=90°, the measure of ∠J=25°, and KL = 26 feet. Find the length of LJ to the nearest tenth of a foot.
saul85 [17]

Answer:

55.8 feet

I hope this helps people

7 0
3 years ago
I need help somebody please help me ill give brainlist’s, this is on math:
ratelena [41]

Answer:    -3 and 3

Step-by-step explanation:

6 0
3 years ago
A karaoke machine saleswoman whose base pay plus commissions amounted to $38,486 last year earned a commission of 14.5% on each
gogolik [260]

Total pay for the year (x) = Base pay + (percentage commission)*x, where x is the number of karaoke machines sold.

Total pay (x) = $35,470 + ($1,300/machine) * (1.145)*x = $38,486. The 1.145 factor represents the unit price of each machine sold PLUS the 14.5% commission.

Let's begin solving this for x by subtracting $35,470 from both sides of this equation. The result is $3,016, which represents commission income.

Each machine sells for $1,300, and the saleswoman earns 14.5% on each sold. That comes to 1.145($1,300) = $1488.50 per machine sold.

Dividing both sides of this equation by ($1,488.50/machine), we get

$3016

x = ------------------------- = 2.027. Round this off to 2, representing the

$1488.50 commission earned on the sale of

2 machines.

8 0
3 years ago
Read 2 more answers
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