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dedylja [7]
3 years ago
7

Solve this quadratic equation using factorisation. I will give brainliest, 5 stars and thanks! :) Kind of urgent, I don't have l

ong to hand my assignment in.
x^2 - 6 = 5x

(Please explain how you worked it out as well, I'm not very confident with this and I need to know how it's done. Thank you :) )
Mathematics
1 answer:
laiz [17]3 years ago
4 0

Answer:

x2 + 5x-6

Step-by-step explanation

Consider the form

x

2

+

b

x

+

c

. Find a pair of integers whose product is

c

and whose sum is

b

. In this case, whose product is

−

6

and whose sum is

5

.

−

1

,

6

Write the factored form using these integers.

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Irina-Kira [14]

Answer:

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Step-by-step explanation:

I assume the question is find the value of 5y+3 when y=10.

5y+3

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8 0
2 years ago
If y varies inversely as x and y=6 when x=8 find y when x=7
Vanyuwa [196]

Answer:

y = 5  1/4

Step-by-step explanation:

For direct or inverse variation relation

relation between two variable and y can be expresses in form of

y = kx  where k is constant of proportionality .

Only thing happens in inverse relation is that when x increases then y decreases and vice versa. That is care by constant of proportionality

__________________________________

Thus, let the inverse relation be

y = kx

given

when y = 6 then x = 8

we will plug this value in y = kx

6 = k*8

=>k = 6/8 = 3/4

Thus,

relation is

y = 3/4 x

we have to find y when x = 7 ,

lets put x = 7 in y = 3/4 x

y = 3/4 *7 = 21/4 = 5 1/4

Thus, when x = 7 then y = 5 1/4

7 0
3 years ago
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antoniya [11.8K]

Answer:

YES

Step-by-step explanation:

To determine a function on a graph use the vertical line test!

put a vertical line through the graph at ANY POINT and if it only passes through one point then it is a function.

6 0
3 years ago
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Step-by-step explanation:

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