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Sergeu [11.5K]
3 years ago
15

Find f (8) when f (x)=-26/x+7

Mathematics
1 answer:
Alexus [3.1K]3 years ago
6 0

Answer:

Step-by-step explanation:

f(x) = 26/x + 7

f(8)=\frac{-26}{8}+7\\\\=-3.25+7\\\\=3.75

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Help with these questions please!
Alisiya [41]

Answer:

1.  16

2.  -4

Step-by-step explanation:

First factor the expression

lim x→1  (x^3 + 5x^2 + 3x-9)/(x-1)

lim x→1  (x-1) (x+3)^2/(x-1)

Canceling the x-1  in the top and bottom

lim x→1   (x+3)^2

Let x=1

lim x→1   (1+3)^2 = 4^2 = 16


2.  lim x→0 (x^2 -6x+8) /(x-2)          

First factor the expression

    lim x→0 (x-4) (x-2) /(x-2)        

Canceling the x-2  in the top and bottom

lim x→0 (x-4)

Let x=0

lim x→0   (0-4) = -4

Filling in the table

x     -.1      -.01       -.001     .001     .01     .1

f(x) -4.1  -4.01    -4.001   -3.999   -3.99  -3.9

4 0
3 years ago
Read 2 more answers
An irrational number between -2 and -1<br><br> a rational number between -2 and -1
leva [86]

Answer:

An irrational number between -2 and -1 would be \frac{-\pi }{2}

A rational number between -2 and -1 would be -1.5

Step-by-step explanation:

\frac{-\pi }{2} = -1.570796... This number does not have repeating decimals, patterns, and it isn't a terminating decimal. It is irrational.

-1.5 is a terminating decimal, therefore it is rational, as well as between -2 and -1.

6 0
2 years ago
At a rate of 4.25% over 24 months. If he pays $51.00 in interest, what was the original amount of his loan?
Alexxandr [17]
I = PRT.....rearrange.....P = I / RT

P = 51 / (0.0425* 2).....I used 2 because 24 months = 2 yrs
P = 51 / 0.085
P = 600 <===

6 0
3 years ago
Need help with questions 5 and 6
kirza4 [7]

Answer:


Step-by-step explanation:


7 0
3 years ago
Th sum of three numbers is 64. The second number is 3 more than the first. The third number is
ladessa [460]
<span>Three numbers can be defined as x, y, and z.
x + y + z = 64
y = x+3
z = 2x - 11
.
substitute for y and z
x + (x+3) + (2x-11) = 64
4x -8 = 64
4x = 72

x = 18
.
y = x+3 = 21
z = 2x -11 = 2(18) -11 = 36-11 = 25
.
x + y + z = 18 + 21 + 25 = 64
Correct.
.
Answer: The three numbers are 18, 21, and 25.</span>
8 0
3 years ago
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