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Natalija [7]
3 years ago
9

Factorisex2 + 2x - 3​

Mathematics
1 answer:
Nitella [24]3 years ago
8 0

Answer:

( x − 1 ) ( x +3 )

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Which of the following is a rational number?
hammer [34]

im not sure but I think it is b

5 0
3 years ago
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Two parallel lines are crossed by a transversal. What is the value of h? h = 60 h = 80 h = 100 h = 120
lisabon 2012 [21]
I added the diagram of the question.

<u><em>Answer:</em></u>
h = 60°

<u><em>Explanation:</em></u>
We are given that lines k and l are parallel lines.
This means that angles 120° and h are <u>supplementary angles</u>.
This means that their measures <u>add up to 180°</u>

<u>Therefore:</u>
180° = 120° + h
h = 180° - 120°
h = 60°

Hope this helps :)

8 0
3 years ago
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Ajar contains 16 beads. 4 beads are red, 4 are yellow, 5 are green, and 3 are blue.
steposvetlana [31]

Answer:

3/16

Total no.of beads = 16

No.of blue beads = 3

Probability of picking a blue bead = 3/16

Step-by-step explanation:

Hope this helps

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3 0
3 years ago
4 2/3 divided by 1/2
ycow [4]

Answer:

9 1/3

Step-by-step explanation:

1. Make 4 2/3 into a improper fraction

4 2/3= 14/3

2. Keep, change, flip

14/3 x 2/1

3. Multiply

14/3 x 2/1= 28/3

4. Simplify

28/3= 9 1/3

(btw keep, change, flip basically means to keep the first fraction the way it is, change the division sign to a multiplication sign, then flip the second fraction so the original denominator is the new numerator, and vise versa.)

3 0
3 years ago
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The coins in the store s cash register total $12.50. The cash register contains only nickels, dimes, and quarters. There are twi
Oduvanchick [21]
Nickels is 0,05 of dolar - n
dimes is 0,1 o dolar -d
quarters is 0,25 of dolar -q
dimes =2nickels
d=2n
quarters=2dimes
q=2d=4n
12,5=n(0,05)+2n(0,1)+4n(0,25)
12,5=0,05n+0,2n+n
12,5=1,25n
n=10
q=4n=40
There are 40 quarters
5 0
3 years ago
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