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tatiyna
2 years ago
11

Evaluate (x^2 + x-2) ➗ (2x^2 + X-3) when X= -1

Mathematics
1 answer:
konstantin123 [22]2 years ago
3 0

Answer:

6

Step-by-step explanation:

(-1^2 + -1-2) / (2*-1^2 + -2-3)

1 + -3 / 2 + -5

-2 / -3

= 6

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It takes Juwan exactly 35 minutes by car to get to his grandmother. The nearest parking area is a 4 minute walk from her apartme
vfiekz [6]

Answer:

4 trips

Step-by-step explanation:

First, let's put all data in minutes.

One trip to granny's home takes 35m to go plus 35m to come back, plans 4m for waking from the parking to the apartment and some other 4m for going to get the car to come home. So the total time spent on one trip is:

35+35+4+4=78 minutes

The total time he counted was 5h12m. If we put this in minutes we need tu multiply the hours by 60 (as every hour has 60 minutes) and sum the 12 minutes:

5*60 + 12 = 300+12=312 minutes total.

If 312 is total time and 78 is the time for one trip, the ratio gives the amount of trips:

312/78=4

So, he made 4 trips, all of them took 78 minutes (you can verify it by summing 78 4 times).

5 0
4 years ago
What is an example of scientific notation?
Elis [28]

Answer:

europa can blow my almonds OwO

Step-by-step explanation:

5 0
2 years ago
The missing base of 81= ^2
sashaice [31]

Answer:

the correct answer is 9²

7 0
3 years ago
Read 2 more answers
Find the perimeter of the rectangle with the following vertices. (−6, −2), (0, −10), (5, 2), (−1, 10) 23 52 46 40
Licemer1 [7]

Answer:

46

Step-by-step explanation:

See attached for reference

<u>The points given:</u>

  • (−6, −2), (0, −10), (5, 2), (−1, 10)

They form a rectangle as seen in the picture.

We can notice that this is a parallelogram, as respective lines have same difference of coordinates.

<u>So calculating only the two of the sides will be sufficient to get its perimeter:</u>

  • a = √(-1+6)² + (10+2)² = √25+144 = √169= 13
  • b = √(0+6)² + (-10+2)² = √36+64 = √100 = 10

<u>So, the perimeter:</u>

  • P = 2(13+10) = 46

7 0
4 years ago
At the grocery store watermelon costs $1.27 per pound. If Heather buys a 5.5 lb watermelon, which proportion could she use to fi
Helga [31]
If you would like to know how much will the watermelon cost, you can calculate this using the following steps:

$1.27 ... 1 pound
$c = ? ... 5.5 pounds

1.27 * 5.5 = 1 * c
c = 1.27 * 5.5
c = $6.99

The correct result would be: <span>c = $1.27 * 5.5 pounds = $6.99.</span>
7 0
4 years ago
Read 2 more answers
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