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Sloan [31]
3 years ago
11

Please answer the question in the pic and show your work

Mathematics
1 answer:
Ludmilka [50]3 years ago
5 0
The question is too small but make a bigger photo and I’ll answer it
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What is 3k +2 ( 5k - 3) = 7
polet [3.4K]

Answer:

k= -0.2

Step-by-step explanation:

3+2(5k-3)=7              (original)

3+10k-6=7                 (distribute 2 in (5k-3))

9+10k=7                    (combine like terms 3+-6)

10k=-2                       (subtract 9 on both sides to isolate k)

k=-0.2                       (divide 10 on both sides to get you're answer/isolate k)

3 0
3 years ago
Write the quadratic function in vertex form, then identify the vertex
34kurt

Answer:

vertex = (- 10, - 10 )

Step-by-step explanation:

The equation of a quadratic in vertex form is

y = a(x - h)² + k

where (h, k ) are the coordinates of the vertex and a is a multiplier

To obtain this form use the method of completing the square.

Given

h(x) = x² + 20x + 90

add/subtract ( half the coefficient of the x- term )²

h(x) = x² + 2(10)x + 100 - 100 + 90

      = (x + 10)² - 10 ← in vertex form

with (h, k ) = (- 10, - 10 )

8 0
3 years ago
Which two values are greater than 3/5
yKpoI14uk [10]

Answer:

1 and 4/5

Step-by-step explanation:

4/5 is greater then 3/5 and 5/5=1 whole which is greater than 3/5, 4/5 and 1 is greater than 3/5 and 1 1/5, 1 2/5 so on and so on it could go forever but 4/5, and 1 is the only ones that our after 3/5 so those are the two greatest ones in this quistion. Hope this helps

5 0
3 years ago
Tell whether the angles are adjacent or vertical. Then find the value of x.
VMariaS [17]

Answer:

The angles are adjacent. x = 100°

Step-by-step explanation:

x + 80 = 180

x = 100

5 0
3 years ago
For what value of x does f(x) = g(x) when f(x) = 4x - 10 and g(x) = 0.5x + 7.5
sladkih [1.3K]

Answer:x=5

Step-by-step explanation:

4x - 10 = 0.5x + 7.5

-0.5x       -0.5x

3.5x - 10 = 7.5

       +10    +10

3.5x = 17.5

divide both sides by 3.5 and you get x=5

3 0
3 years ago
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