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Lyrx [107]
3 years ago
15

Question 8 of 10

Mathematics
2 answers:
iren2701 [21]3 years ago
8 0

Answer:

7x-1

Step-by-step explanation:

  • f(x)+g(x)
  • 5x-2+(2x+1)
  • 5x-2+2x+1
  • 7x-1

lawyer [7]3 years ago
5 0

(f +G) means to add the two equations together:

5x - 2 + 2x +1

5x + 2x = 7x

-2 +  = -1

Answer is C. 7x-1

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A box contains10 pens, 5 of the pens are red, 4 are balck and 1 are bluem What is the probability of pulling out a black pen fir
antiseptic1488 [7]
Pulling out a black pen first will grant you a 40% chance of that occurring, then when you put it back the probability of you pulling out a red pen would be 50% so in decimal form these two values would be .40 and .50 multiply these two together you should get .20 or a 20% chance. Also a written fraction would be 1/5, all of which are valid answers.
6 0
3 years ago
Fill in the other coordinate for the line 7x - 5y =21:(4 , ?)
inessss [21]
<span>7x - 5y =21
-7           -7
5y  =     14
----        -----
5            5
y=   2.8
(4,2.8)</span>
7 0
2 years ago
Work out the value of (1.7 × 10⁴) × (8.5 × 10^-2) give your answer in standard form
kogti [31]

Answer:

Step-by-step explanation:

10^4 = 10000

1.7 × 10^4 = 1.7 × 10000

= 17000

10^-2 = 1/10^2= 1/100

8.5 × 10^-2 = 8.5 × 1/100

= 17/200

Final answer = 17000 × 17 / 200

= 1445

Plz mark it as brainliest

7 0
3 years ago
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arlik [135]

Answer:

Step-by-step explanation:

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Help its due in 5 mins lol
inessss [21]
Y= 26 & x=35 hope I did it on time!
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