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Crank
3 years ago
15

Pls please please help me with this

Mathematics
2 answers:
nekit [7.7K]3 years ago
8 0
The last one should be it
Sonja [21]3 years ago
4 0

Answer:

the middle one

Step-by-step explanation:

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Factor this trinomial x^2 + 4x - 21
ArbitrLikvidat [17]
The answer to this is (x - 3)(x + 7)
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A sequence of transformations that maps △RST to △R′S′T′ is a
blondinia [14]
Hey I'm on this question on my test too. I think the answer is:

First Box: "Reflection across the x-axis" 
Last Box: "Translation 1 unit down"

What the sentence should look like =  "<span>△RST</span><span> to </span><span>△<span>R′</span><span>S′</span><span>T′</span></span><span> is a reflection across the x-axis followed by a translation 1 unit down."

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4 years ago
Is 5/16 equal or bigger than 1/2
taurus [48]
To be able to compare two fraction we have to make common denominator. Then we can compare fractions.
\frac{1}{2} = \frac{1*8}{2*8}= \frac{8}{16}
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1/2 is bigger than 5/16
4 0
3 years ago
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Help a brother out, I'm lost
9966 [12]

Answer:

I think that the answer is 25,180.

Step-by-step explanation:

8 0
3 years ago
Pls anwers pls friend fast pls
Natalija [7]

Answer:

(b) (a) (d) (a) (c)

Step-by-step explanation:

(i) The probability of an even card is 1/2 because the number of even cards and odd cards are the same so there is a 50% of getting an even card. (b)

(ii) Since the card is replaced, there is still a card for all numbers between 1-20. There are 8 prime numbers and 20 cards so the probability of getting a prime number is 8/20 or 4/10 or 2/5. (a)

(iii) The card was not replaced so there are only 19 cards and there are only 5 numbers that are multiples of 3 and greater than 4. The probability must be 5/19. (d)

(iv) A sure event means that it will happen 100%. So P(A) = 1 since the number one represents 100%. (a)

(v) All cards have replaced and there is only one number that is a multiple of 3 and 5 which is 15. 1 card out of 20 is a desired outcome so 1/20 is the probability. (c)

7 0
3 years ago
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