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k0ka [10]
3 years ago
14

2/5=?? Help mee Helpp

Mathematics
2 answers:
Vedmedyk [2.9K]3 years ago
8 0
The answer to 2/5 would have to be 0.4
son4ous [18]3 years ago
6 0

Isn’t it 10 I mean I could be wrong

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Erify that f has an inverse. then use the function f and the given real number a to find (f −1)'(a). (hint: see example 1. if an
zhannawk [14.2K]

The function

... f(x) = (x+2)/(x-1) = 1 + 3/(x-1)

is symmetrical about the line y=x, hence is its own inverse.


We can evaluate the desired derivative directly.

... f'(x) -3/(x-1)²

so f'(2) is

... f'(2) = -3/(2-1)²


(f^{-1})(2)=-3

8 0
3 years ago
Dima called her friend to tell her that she saved 30% on her new skirt at a discount store. Her friend told her that she could h
Olenka [21]
Since the rate of the other store is not given, let us just get the sales price of the skirt Dima bought from the discount store.

Original price : $54
Discount rate : 30%

$54 x 30% = $16.20 value of the discount
$54 - 16.20 = $37.80 discounted price.

Since Dima's friend told her she could have had a better deal at a different store, this means that the discount rate is higher than 30%. Let us assume that the discount is 35%

$54 x 35%  = $18.90 value of the discount
$54 - 18.90 = $35.10 discounted price.

Discount store: $37.80
Different store: $35.10

Different store sales price is cheaper by $2.70
8 0
3 years ago
Read 2 more answers
Convert 12+4y =-4x to slope intercept form
marysya [2.9K]

Answer:

y=mx+b

y=-x-3

Step-by-step explanation:

5 0
2 years ago
Length and width of a soccer field?
djyliett [7]

Answer:

50-100 yards in width and 100-130 yards in length

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
WILL MARK BRAINIEST
muminat

Answer:

f(x) = -4x - 2

Step-by-step explanation:

To derive the function rule in slope-intercept form, f(x) = mx + b, we need to find the slope, m, and the y-intercept, b, of the graph given.

Using two points on the line, (-1, 2) and (0, -2), find slope (m) as shown below:

m = \frac{y_2 - y_1}{x_2 - x_1} = \frac{-2 - 2}{0 -(-1)} = \frac{-4}{1} = -4

m = -4

The line intercepts the y-axis at y = -2, therefore the y-intercept, b, = -2.

Substitute m = -4, and b = -2 into f(x) = mx + b.

The function rule in slope-intercept form would be:

f(x) = -4x +(-2)

f(x) = -4x - 2

7 0
3 years ago
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