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goldfiish [28.3K]
2 years ago
9

Can someone please help!

Mathematics
1 answer:
Fudgin [204]2 years ago
3 0

Answer:

min f(x) = 3.95  (for x= 2.5)

Step-by-step explanation:

vertex (x) = 1/0,4 = 2,5

vertex (y) = 0.2(2.5)^2-2.5+5.2 = 3.95

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What is the constant of proportionality in the equation y=5x?
zaharov [31]

Answer: The constant of proportionality is 5 because the equation would be y=kx but instead of k it has 5.

5 0
2 years ago
A 128gb Iphone 12 cost $999.00 is 6.25%. How much is the cost of the Iphone inlcuding the sales tax?
anyanavicka [17]

Answer:

1,061.44

Step-by-step explanation:

100%+6.25%=106.25%

convert this to  decimal and you get 1.0625

then you just multiply with the initial price

999.00*1.0625=1,061.44

6 0
3 years ago
Read 2 more answers
Find the measures of the numbered angles in each figure
inessss [21]
1 is 90o
2 is 90 - 27 = 63
3  63 angles 2 and 3 are in an isosceles triangle. They are opposite equal sides so the angles are equal.
6 0
3 years ago
Which of the following statements are the same? (A) x -= x + 4 (B) x = x + 4 - x (C) x = x - (x + 4) (A) and (B) are the same (A
Nesterboy [21]

Answer: (A) and (B) are the same

Step-by-step explanation:

for (A)

x-=x+4

x=x-(x+4)

x=x-x-4

x=4

for (B)

x=x+4-x

x=4

for (C)

x=x-(x+4)

x=x-x-4

x=-4

so (A) and (B) are the same because the value of their x is +4

5 0
3 years ago
In the figure, point k is the image of point j under a reflection across line L. Find y
Viktor [21]
Since, <span>point K is the image of point J under a reflection across line L.

The distance, JM = MK

</span>Hence, 2x + 4 = 4x - 6
4x - 2x = 4 + 6
2x = 10
x = 5

Also refrection of a point across a line form an angle of 90 degrees at the point of refrection.
i.e. 3y - 30 = 90
3y = 90 + 30 = 120
y = 120 / 3 = 40

Therefore, the value of y is 40.
4 0
3 years ago
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