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podryga [215]
3 years ago
11

Djtdjdfdgdkdfhgg- math again

Mathematics
1 answer:
sashaice [31]3 years ago
5 0

Answer:

All your answers are right. A and d are functions but b and c are not.

Step-by-step explanation:

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Find the vertex and zeros of the following function f(x)=x^2-6x-7
elena-s [515]

Try this solution:

Step-by-step explanation:

1) for zeros of the function: x²-6x-7=0; ⇒ x₁=7; x₂= -1.

2) for the vertex of the function: x₀= -b/2a, where a;b;c - numbers from ax²+bx+c=0 (from x²-6x-7=0).

x₀=6/2=3;

y₀= (4ac-b²)/4a; ⇒ y₀= -16.

It means, the coordinates of the vertex are (3;-16).

6 0
3 years ago
I need help! This is really hard for me
Goryan [66]
Total clay = πr²h = π x (4÷2)² x 6 = 12π in³

Clay ball = 4/3 x π x (1)³ = 4/3 π in³

Number of clay balls that can be made = 12π ÷ 4/3 π = 9

--------------------------------------------------
Answer: 9 clay balls.
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8 0
3 years ago
I am a factor of 28 the other factor is 4 what number am i
Advocard [28]
The answer is 7 7x4=28
7 0
3 years ago
Read 2 more answers
Three less than triple a number is the same as the number plus 57. What is the number?
saw5 [17]
Make this into an equation keeping the number as x
3x-3 = 57+x
3x-x = 57+3
2x=60
x= 30

prove this by substituting the x 
30*3 -3 =57+30
87=87
there you have it :)
3 0
3 years ago
Find the nth term for the following sequence in simplest form: <br> -3, 0, 3, 6...
VikaD [51]

Answer:

21

Step-by-step explanation:

The pattern is going up by 3s

3 0
4 years ago
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