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Rama09 [41]
3 years ago
15

Will mark brainliest Find the sum of x^2 + 3x and -2x^2 + 9x +5.

Mathematics
1 answer:
zimovet [89]3 years ago
6 0

Answer: -x^2 + 12x +5

Step-by-step explanation:

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It is now 3:15 pm. Is it possible to drive 135 miles and arrive before 5:00 pm if ypu drove 55 mph? Explain your answer
Troyanec [42]
Well, how long will it take you to drive 135 miles at 55mph?

at 55 mph, you're doing 55 miles every hour, so we can simply get the quotient of 135/55 and that's how many hours it'll take you to drive 135 miles at that speed.

\bf \cfrac{135}{55}\implies \cfrac{27}{11}\implies 2\frac{5}{11}~hours\implies \textit{about 2hrs, 27 minutes}

so, it takes you that long, however, from 3:15 to 5:00pm there are only 45mins + 60mins or 1hr and 45 minutes, namely 1¾ hr.

so 2hrs and 27 minutes is much later than 1¾ hr, so, no dice, you can't arrive at 5pm, actually you'll arrive around 5:42pm.
6 0
3 years ago
Read 2 more answers
P^-7 divided by q^-8
UkoKoshka [18]

Answer:

q^8/p^7

Step-by-step explanation:

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

8 0
3 years ago
Between 2004 and 2005, oil production in Australia fell from 731,000 to 537,500 barrels per day. What was the percentage decreas
jekas [21]
In this question, the oil production at 2004 (which was 731000barrel/day) was reduced at 2005(into 537500 barrel/day). You are asked the percentage reduction. To answer this, you need to determine how much the decrease in barrel/day then divide it by the initial production before reduced(production at 2004)
The reduction would be: 731,000 barrels/day - 537,500 barrels/day = 193,500 barrels/day
Then divide it with initial production: (193,500barrels/day )/(731,000 barrels/day) * 100% = 26.47%
3 0
3 years ago
Given that the radius of circle A is 4 cm, and the diameter of circle B is 6 cm, what can be concluded about the two circles. So
Alinara [238K]
All circles are similar.

If they were congruent, they would have the same radius's/diameter's.

Circle B = diameter of 6

Circle A = radius of 4

Diameter = 2 * Radius

Circle A = diameter of 4 * 2 = 8

So they have different diameter's, therefore they are not congruent. So they are similar only.
8 0
3 years ago
A baseball player had 4 hits in 8 games. At this rate, how many hits will the baseball player have in the next 28 games?
hoa [83]

Answer:

14

Step-by-step explanation:

I would say 14 because if you multiply 8 by 3 it would equal 24. And that is just below 28. Then, I tried to see if 8 x 4 would work, but that equaled 32. And both of those numbers are in between 28. So, if I multiplied 8 by 3 to get 24, I also multiplied the 4 by 3 which equals 12. So, I would say it would be 14.

4 0
3 years ago
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