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Naddik [55]
2 years ago
8

Find the sum of 2x^2 - 5x -2 and 4x^2 - 6x + 8

Mathematics
1 answer:
Elena L [17]2 years ago
8 0

6x^2 -11x+6

..........................

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Nancy walked 516 yards in 6 minutes and then another 368 yards in 4 minutes. What was Nancy's average speed? * A. 89 yd/min B. 8
Rina8888 [55]
Average speed = (total distance covered) / (time to cover the whole distance)
 
Total distance = (516 + 368) = 884 yards
Total time  = (6 + 4) = 10 minutes  

Average speed = (884 yards) / (10 minutes)

Average speed = 88.4 yards/minute  (C)


Other ways to write the same speed:

-- 4.42 feet/second
-- 265.2 feet/minute
-- 53.04 inches/second
-- 5,304 yards/hour
-- 3.014 mph (rounded)
-- 810.07 furlong/fortnight
7 0
3 years ago
1000 grams decreased by 94
muminat
906 grams.
1000-94=906 grams
4 0
3 years ago
Which number is irrational?<br><br><br> 6√<br><br> 1/3<br><br> 0.14............<br><br> 4√
deff fn [24]
Umm, I think it is the first one.
3 0
2 years ago
Read 2 more answers
Help please! I don't know how to do this.
Ira Lisetskai [31]

Answer:

c

Step-by-step explanation:

7 0
3 years ago
What is the m∠N ? Can someone help me :)
Sauron [17]

Answer:

<h2>61°</h2>

Step-by-step explanation:

Use the sine law:

\dfrac{MO}{\sin(\angle N)}=\dfrac{NM}{\sin(\angle O)}

We have:

MO=18\\\\NM=6\\\\m\angle O=17^o\to\sin17^o\approx0.2924

Substitute:

\dfrac{18}{\sin(\angle N)}=\dfrac{6}{0.2924}         <em>cross multiply</em>

6\sin(\angle N)=(18)(0.2924)

6\sin(\angle N)=5.2632          <em>divide both sides by 6</em>

\sin(\angle N)=0.8772\to m\angle N\approx61^o

4 0
2 years ago
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