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polet [3.4K]
4 years ago
15

HELP ASAP PLEASE its due tomorrow!! d^2 - c^3 d = 8 and c = 5

Mathematics
2 answers:
elixir [45]4 years ago
8 0
If d= 8, and c= 5, then:
8^2= 64
5^3= 125
Phoenix [80]4 years ago
3 0

Answer:

c = a

Step-by-step explanation:

Let k be one of the root of the given equation.

According to the problem,

1/k will be the other root of the given equation.

We know that, product of the roots of the equation = c/a.

Therefore, k × 1/k = c/a.

or, 1 = c/a.

or, a = c [multiplying a on both sides].

The roots of the equation ax2 + bx + c = 0 will be reciprocal if a = c.

Therefore, a = c or c = a.

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I can’t figure out the answer, please help
spin [16.1K]

Answer:

A

Step-by-step explanation:

simplifying The question ...you will have

(1/x2y/4x5)^2=1/x2y × 1/4x^5

6 0
4 years ago
Jeff invested $3000 in an account that earns 6.5% interest
goblinko [34]

Answer;

= $ 3623.85

Explanation;

To calculate compound interest we use the formula;

FV = OV( 1 + r/100)^n

FV=Future value which is what the value will be after the interest is calculated, this is what you are looking for.

OV=Original value, the amount of money you started with, in this case  

3000

r=interest rate, in this case its 6.5

n=years its being compounded annually, in this case 3

= 3000(1 + 6.5/100)^3

= 3623.848875

≈ 3623.85

6 0
3 years ago
Evaluate the difference quotient?
goldenfox [79]
F(x) = x^2 + 4x - 5

[f(a + h) - f(a)] / h

f(a) = a^2 + 4a - 5
f(a + h) = (a + h)^2 +4(a + h) - 5
             = a^2 + 2ah + h^2 + 4a + 4h - 5

f(a + h) - f(a) = a^2 + 2ah + h^2 + 4a + 4h - 5 - ( a^2 + 4a - 5)
----------------      ------------------------------------------------------------
       h                                              h

                       =  2ah + h^2 + 4h            h (2a + h + 4)          2a + h + 4
                           -------------------        =  -------------------    =
                                       h                              h
3 0
4 years ago
In triangle ABC centriod D is on median AM. AD=×+3and DM= 2x-1 find AM
PilotLPTM [1.2K]

Answer:

7

Step-by-step explanation:

The centroid divides the median in a 2:1 ratio. Therefore,

    AD = 2DM

x + 3 = 2(2x - 1)     Remove parentheses

x + 3 = 4x – 2       Add 2 to each side

x + 5 = 4x             Subtract x from each side

   3x = 5               Divide each side by 3

     x = ⁵/₃

AM = AD + DM

      = (x + 3) + (2x – 1)

      = 3x + 2     Substitute the value of x

      = 3 × ⁵/₃ + 2

      = 5 + 2

      = 7

Length of median AM = 7.

3 0
3 years ago
A plain old black witch hat won't be good enough this year, Wanda
Komok [63]

The answer would be $42.4. $50 minus $10 is $40. Multiply that by 106% because of tax, and you get $42.4.

Hope this helped! :)

3 0
4 years ago
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