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enyata [817]
3 years ago
10

Which is equivalent to 3 1/2

Mathematics
2 answers:
ivolga24 [154]3 years ago
7 0
7/2 this is right because I was concerted
tamaranim1 [39]3 years ago
6 0

Answer:

You haven't provided options but if you are converting it to an improper fraction then the answer would be seven over two (7/2)

Step-by-step explanation:

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Which of the following expressions is a factor of the polynomial x 2 +3/2x-1
Elodia [21]

Answer:

\large \boxed{\sf \ \ \ (x+2)(x-\dfrac{1}{2}) \ \ \ }

Step-by-step explanation:

Hello,

let's solve

x^2+\dfrac{3}{2}x-1=0\\\\ 2x^2+3x-2=0 \ \text{multiply by 2}\\\\\\

\Delta=b^2-4ac=9+4*2*2=9+16=25

There are two solutions

x_1=\dfrac{-3-\sqrt{25}}{4}\\\\x_1=\dfrac{-3-5}{4}\\\\x_1=\dfrac{-8}{4}\\\\\boxed{x_1=-2}

And

x_2=\dfrac{-3+\sqrt{25}}{4}\\\\x_2=\dfrac{-3+5}{4}\\\\x_2=\dfrac{2}{4}\\\\\boxed{x_2=\dfrac{1}{2}}

So we can write

x^2+\dfrac{3}{2}x-1\\\\=(x-x_1)(x-x_2)\\\\=(x+2)(x-\dfrac{1}{2})

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

5 0
3 years ago
In a bag are 3 red, 9 blue, 2 yellow and 3 green marbles. If you draw out a marble at random, what the probability that you will
dmitriy555 [2]

Answer:

9/17

Step-by-step explanation:

there are 17 marbles in total 9 of them are blue therefore, 9/17 is the correct answer

6 0
3 years ago
Brock walked 5/8 mile on Monday and 11/12 mile on Tuesday. How far did Brock walk on Monday and Tuesday?
harina [27]

Answer:

1 and 13/24

Step-by-step explanation:

you find a common denominator which is 24 then convert both to that number which gets you to

22/24  and 15/24

then you add 22 and 15 to get 37,

which you then make it into a mixed number by subtracting 24 from 37 to get 13/24 and you add your 1

to get 1 and 13/24 as your answer of how far Brock had walked on Mondat and Tuesday.

5 0
3 years ago
Read 2 more answers
Consider the line y=9x-5.
igomit [66]
Y = 9x - 5...the slope here is 9...a parallel line will have the same slope.

y = mx + b
slope(m) = 9
(5,-4)...x = 5 and y = -4
now we sub and solve for b, the y int
-4 = 9(5) + b
-4 = 45 + b
-4 - 45 = b
-49 = b
so ur parallel line is : y = 9x - 49

y = 9x - 5...slope is 9. A perpendicular line will have a negative reciprocal slope. All that means is " flip " the slope and change the sign. So the slope we need is -1/9.

y = mx + b
slope(m) = -1/9
(5,-4)...x = 5 and y = -4
now we sub and solve for b, the y int
-4 = -1/9(5) + b
-4 = -5/9 + b
-4 + 5/9 = b
-36/9 + 5/9 = b
- 31/9 = b

so ur perpendicular line is : y = -1/9x - 31/9

6 0
3 years ago
Express (x-9)^2 as trinomial in standard form
Ray Of Light [21]

{x}^{2}  - 18x + 81
5 0
3 years ago
Read 2 more answers
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