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Korolek [52]
3 years ago
6

Which table has a constant of proportionality between y and x of 1/4?

Mathematics
1 answer:
worty [1.4K]3 years ago
4 0
In order to find constant of proportionality, you have to use the equation, x(?)=y
The ? being the number to plug in, which would be 1/4 in this case. 8 times 1/4 is equal to 2 and so on.
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Original price: $64; Markup: 15% what is the retail price?
Brrunno [24]

Answer:

$73.60

Step-by-step explanation:

Original price:  $64

Markup:  0.15($64) = $9.60

New retail price:  $64 + $9.60 = $73.60

4 0
3 years ago
1. Triangle ABC has an angle of ABC = 60°, AB = 3 √3 cm and BC = 4 √3 cm. Determine the length of AC.​
Oksi-84 [34.3K]

Answer:

see below

Step-by-step explanation:

you can use cosine law

(3 sqrt3)^2 + (4 sqrt3)^2 - 2(3 sqrt3)(4sqrt3)cos60 = AC^2

AC = sqrt39

4 0
2 years ago
What is the solution to the quadratic equation 8m^2+7m-15=-7 ?
Aleks04 [339]
Make equal to zero
add7 both sides
8m^2+7m-8=0
quadratic fomrula

if you have
ax^2+bx+c=0
x=\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}

8m^2+7m-8=0
a=8
b=7
c=-8

x=\frac{-7+/- \sqrt{7^{2}-4(8)(-8)} }{2(8)}
x=\frac{-7+/- \sqrt{49+256} }{16}
x=\frac{-7+/- \sqrt{305} }{16}

x=\frac{-7+ \sqrt{305} }{16} or x=\frac{-7- \sqrt{305} }{16}

aprox
x=-1.52902 or 0.654016


4 0
3 years ago
Rewrite the function in vertex form,y = (a - h)² + k, and identify the coordinates of the vertex and equation of axis of symmetr
Illusion [34]

Answer:

Rewrite the function in vertex form,y = (a - h)² + k, and identify the coordinates of the vertex and equation of axis of symmetry.Show Work y = -3x² - 24x - 50

Step-by-step explanation:

5 0
3 years ago
I need help!!
iogann1982 [59]

Answer:

1st is valid 2nd is not valid

Step-by-step explanation:

8 0
3 years ago
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