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Basile [38]
3 years ago
9

There were 78 girls trying out for dance. They were placed into groups containing d dancers. How many groups were there, in term

s of d? Helppppppoooop
Mathematics
1 answer:
Lera25 [3.4K]3 years ago
3 0

Step-by-step explanation:

The hole never disappears; at the end of the story, the first things that went into the hole come out of the sky and back into the city. There's no sign that the hole is gone

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Consider the functions below.<br> f(x) = x² - 6x - 27<br> g(x) = x - 9
aleksklad [387]
Correct answer: 1) (f/g)(x)

Solution: f(x)=x^2-6x-27=(x+3)(x-9)

3 0
2 years ago
When does a sequence and series become an arithmetic sequence and arithmetic series​?
maria [59]

Answer:

An arithmetic sequence is a sequence of numbers in which the difference between the consecutive terms is constant.

4 0
2 years ago
Use properties of addition and subtraction to evaluate the expression <br> -42 - 29 - 28
Setler [38]
(-42) (-29) (-28)
-42 - 29 = -71
-71 - 28 = -99

-99 is your answer

hope this helps
7 0
3 years ago
Factor 5a^2-30a+45, and 2x^5+x^4-2x-1.
Mrrafil [7]

Step-by-step explanation:

{5a}^{2}  - 30a + 45

5( {a}^{2}  - 6a + 9)

5(a-3)(a-3)

5(a-3)^2

{2x}^{5}  +  {x}^{4}  - 2x - 1

X^4(2x+1) - (2x+1)

(x^4-1)(2x+1)

(x^2-1)(x^2+1)(2x+1)

(x-1)(x-1)(x^2+1)(2x+1)

6 0
2 years ago
- The water level of a lake fell by 13 inches during
bezimeni [28]

Answer:

r = - 13 / 15 inches/week

Step-by-step explanation:

The numerator is 13

and the denominator is 15, then we have

r = - 13 / 15 inches/week

r < 0 since the water level of the lake fell

6 0
3 years ago
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