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olga_2 [115]
3 years ago
9

2.06 ? 2.060А. <B.>C.=​

Mathematics
1 answer:
agasfer [191]3 years ago
8 0

2.06 is equivalent to 2.060

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Need help to write equations for 5, 6 &amp; 7
Softa [21]
6)
A quadratic function has the form
y = ax^2 + bx + c

Use point (3, 5) in the equation above:

5 = a(3^2) + 3b + c
5 = 9a + 3b + c
9a + 3b + c = 5     Equation 1

Use point (4, 3) in the equation above:

3 = a(4^2) + 4b + c
16a + 4b + c = 3    Equation 2

Use point (5, 3) in the equation above.

5 = a(5^2) + 5b + c
25a + 5b + c = 5       Equation 3.

Now solve the system of equations of equations 1, 2, and 3 to find the coefficients, a, b, and c.

9a + 3b + c = 5
16a + 4b + c = 3
25a + 5b + c = 5

Subtract the first equation from the second equation.
Subtract the second equation from the third equation.
You get
7a + b = -2
9a + b = 2

Subtract the first equation above from the second equation to get.
2a = 4
a = 2

Substitute:
7a + b = -2
7(2) + b = -2
b = -16

9a + 3b + c = 5
9(2) + 3(-16) + c = 5
18 - 48 + c = 5
c - 30 = 5
c = 35

The equation in standard form is

y = 2x^2 - 16x + 35

We can find it in vertex form:

y = 2(x^2 - 8x) + 35

y = 2(x^2 - 8x + 16) + 35 - 32

y = 2(x - 4)^2 + 3
3 0
3 years ago
What is the volume of this prism
Rainbow [258]

Answer:

36 cubic units

Step-by-step explanation:

length x width x height

you don’t need to pay attention to 6.97 because that’s not the real height. The real height is 4 (the straight line)

3x3x4 = 36 cubic units

4 0
2 years ago
Read 2 more answers
Solve the following system x=3 y=3x-1
astraxan [27]

Answer:

x = 3

y = 8

Step-by-step explanation:

Since it gives you x, you need to plug in the number given for it into the equation:

y = 3x - 1

y = 3(3) - 1

y = 9 - 1

y = 8

So now you have, x = 3 and y = 8

5 0
3 years ago
2/3b+5=20−b Solve for b. Both sides have to be equal.
BigorU [14]

Answer:

B=9

Step-by-step explanation:

Solve for  b  by simplifying both sides of the equation, then isolating the variable.

Hope this helps

3 0
2 years ago
Read 2 more answers
Suppose you have a $ 4-off coupon at a fabric store. You buy fabric that costs 7.50 per yard.Write an equation that models the t
netineya [11]
Y= (7.50x-4) ..........
7 0
3 years ago
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