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garik1379 [7]
3 years ago
15

Of the five quadratics listed below, four of them have two distinct roots. The fifth quadratic has a repeated root. Find the val

ue of the repeated root.
-x^2 + 18x + 81
3x^2 - 3x - 168
x^2 - 4x - 4
25x^2 - 30x + 9
x^2 - 14x + 24
Mathematics
1 answer:
musickatia [10]3 years ago
6 0

Answer: 3/5

Step-by-step explanation: The fourth quadratic in the list is the square of a binomial:

25x^2 - 30x + 9 = (5x - 3)^2

Therefore, the repeated root of this quadratic is the solution to 5x - 3=0, which is 3/5

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(r + 14x + 55x + 48) \(x + 6)
balu736 [363]

Answer:

r + 69x + 48 / x + 6

Step-by-step explanation:

3 0
3 years ago
Hayley begins solving this problem by combining like terms. 3x + 5x = 10 Which problem begins the same way? A) 5x = 20 B) 3(x +
joja [24]

Solution: The given equation is →3 x+ 5 x=10

As you can see in the above equation on left side of equation the two terms are variables and on right side of equation the term is a constant term.Also you can see there is an operation called addition between the two variables on left side of equation.

In option (A), there is only a single term on right as well as left,so this can't be true.

In option (B), there is a constant and variable on left side of equation.So this is also untrue.

In option (C), variable being divided by numerator, so this is also untrue.

Option (D)3 x - 2 x = 10,  is surely correct , because there are two variables on left side of equation and one constant on right side of equation, and there is an operation called subtraction between them .

6 0
4 years ago
Find two decimals that are equivalent to
mafiozo [28]

Answer:

(4*10)+(7*1/100)=40+7/100=40 7/100

Step-by-step explanation:

5 0
3 years ago
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mel-nik [20]

Answer:

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Step-by-step explanation:

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8 0
2 years ago
PLEASE PLEASE HELP ME OUT! But i ask that you explain how you got your answer and not just give the answer.
rjkz [21]

ok so first we would do the function d(x) = 3(8)+2

which when solved turns out to be 26

we would then do the function h(x) = 2(26) +7

which when solved turns out to be 59

so he would need 59 dollars for the donuts

6 0
3 years ago
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