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3 years ago

13

Find the discriminant of each quadratic equation then state the number and type of solutions

1 answer:

wariber [46]3 years ago

3 0

N=3
Because 6+6=12
Hope this helps

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I need to know this asap!

Vinvika [58]

w+2x=16 ⇒ w=16-2x

x+2w=14 x+2(16-2x)=14

x+32-4x=14

-3x=14-32

-3x=-18 /:(-3)

x=6

w=16-2x=16-2·6=16-12=4

2y+w=-6 ⇒ 2y+4=-6

2y=-6-4

2y=-10 /:2

y=-5

4 0

3 years ago

Oduct of (x2 + 3)(x - 5).

Zanzabum

Answer: 2x^2-7x-15

Step-by-step explanation:

reorder the terms (x*2+3)*(x-5)

multiply the parentheses

(2x+3)*(x-5)

collect like terms (2x^2-10x+3x-15)

product= 2x^2-7x-15

8 0

3 years ago

market price of a dress is 1500 rupees shop owner give a discount of 20% find the discount and the bill amount paid

kogti [31]

Step-by-step explanation:

Marked price (mp) =rs 1500

discount (d) = 20%

discount amount = d% of mp

=20/100 *1500

= Rs. 300

bill amount paid = mp -d

= 1500 - 300

= Rs. 1200

3 0

3 years ago

7+a=10;3,13,17 branlest

Assoli18 [71]

Answer:

ok

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Please help! Write an expression for 6 times more than twice a number decreased by

Shalnov [3]

Answer (6•2) - 7 ) \ 4

3 0

3 years ago