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bulgar [2K]
3 years ago
11

A fancy dinner for two cost $69.06 before a 1% tox

Mathematics
1 answer:
N76 [4]3 years ago
3 0
132.40 should be the answer
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1) During skating practice, Sasha landed 7 out of 12 jumps. What is the experimental
balandron [24]

Answer:

14 maybe

Step-by-step explanation:

5 0
3 years ago
Prove that the roots of x2+(1-k)x+k-3=0 are real for all real values of k​
masha68 [24]

Answer:

Roots are not real

Step-by-step explanation:

To prove : The roots of x^2 +(1-k)x+k-3=0x

2

+(1−k)x+k−3=0 are real for all real values of k ?

Solution :

The roots are real when discriminant is greater than equal to zero.

i.e. b^2-4ac\geq 0b

2

−4ac≥0

The quadratic equation x^2 +(1-k)x+k-3=0x

2

+(1−k)x+k−3=0

Here, a=1, b=1-k and c=k-3

Substitute the values,

We find the discriminant,

D=(1-k)^2-4(1)(k-3)D=(1−k)

2

−4(1)(k−3)

D=1+k^2-2k-4k+12D=1+k

2

−2k−4k+12

D=k^2-6k+13D=k

2

−6k+13

D=(k-(3+2i))(k+(3+2i))D=(k−(3+2i))(k+(3+2i))

For roots to be real, D ≥ 0

But the roots are imaginary therefore the roots of the given equation are not real for any value of k.

6 0
3 years ago
Elijah ran around the quarter mile track at the school seven times. Approximately how many kilometers is this?
Ivan
I would say the answer is C
3 0
3 years ago
Will giver brainliest if right
Kazeer [188]

Answer

6x + 3 = 180°

6x = 177°

x = 29.5°

7 0
2 years ago
Which strategy did companies use to stop strikes from growing?
Nastasia [14]

Answer:

They hired workers to cross the picket line if a group of workers went on strike.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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