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Eddi Din [679]
3 years ago
5

Evaluate 15/r -1 when r=5

Mathematics
1 answer:
Svetlanka [38]3 years ago
7 0

Answer:

The answer would be 2 if r is 5

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Suppose that the functions s and t are defined for all real numbers x as follows.
PolarNik [594]

Answer:

(s-t)(-1) = -1

(s+t)(-1) = -7

Step-by-step explanation:

Given the following set of functions

s(x)=2x-2

t(x)=3x

(s-t)(x) = s(t) - t(x)

(s-t)(x) = 2x - 2 - 3x

(s-t)(x)  = -x -2

(s-t)(-1) = -(-1) - 2

(s-t)(-1) = 1-2

(s-t)(-1) = -1

(s+t)(x) = s(t) + t(x)

(s+t)(x) = 2x - 2 + 3x

(s+t)(x)  = 5x -2

(s+t)(-1) = 5(-1) - 2

(s+t)(-1) = -5-2

(s+t)(-1) = -7

8 0
3 years ago
I’ll give extra points
ollegr [7]

Answer:

the 2nd one

Step-by-step explanation:

5 0
3 years ago
Hiii! can someone please help me with my maths question
beks73 [17]

Step-by-step explanation:

a^2 + b^2 = c^2

(x+2)^2 + 4x^2 = (3x+4)^2

(x+2)(x+2)+ 4x^2= (3x+4)(3x+4)

x^2 + 2x + 2x + 4 + 4x^2 = 9x^2 + 12x + 12 x + 16

5x^2 + 4x + 4 = 9x^2 + 24x + 16

-4x^2 - 20x - 12 = 0

now we can use the quadratic formula

(-b±√(b²-4ac))/(2a)

I can't type all this so

.....

x = -0.697224362 or -4.302775638

AB can't be negative so it's the first one

so it's equals to 1.302775638

6 0
3 years ago
(05.03 MC)What is the area, in square units, of the polygon shown here?
djverab [1.8K]

To resolve the proposed issue, an explanation is needed in which the subject is addressed

5 0
3 years ago
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Gardeners planted bushes in the city park. They wanted 1/3 of the bushes to be rose bushes and 1/4 of the rose bushes to be pink
den301095 [7]
3/4


your answer is D hope i helped

4 0
3 years ago
Read 2 more answers
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