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noname [10]
3 years ago
6

Solve by factoring n^2+2n-15=0. With steps please.

Mathematics
1 answer:
VMariaS [17]3 years ago
7 0
n^2+2n-15=0\\
n^2+5n-3n-15=0\\
n(n+5)-3(n+5)=0\\(n-3)(n+5)=0\\
n=3 \vee n=-5
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Suppose you add two vectors A and B . What relative direction between them produces the resultant with the greatest magnitude? W
Anna71 [15]

Answer: The resultant would be the sum and the difference between the vectors.

Step by step explanation: 1. The possible resultant is between the sum of the 2 vectors and the difference between the two vectors.

2. The greatest magnitude is when the vectors lie in the same direction and the sum would be the scalar sum of the two vectors. The angle between the two would be zero degree.

6 0
3 years ago
2. A bowling alley charges $3.00 to rent shoes and $1.50 per game bowled.
Zina [86]
3+1.50n would be an expression for this
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3 years ago
The perimeter of a rectangular swimming pool is 446 centimeters. The width of the pool is 7 centimeters less than the length of
VLD [36.1K]

Answer:

length = 115 cm

width = 108 cm

Step-by-step explanation:

The perimeter of a rectangular swimming pool is 446 centimeters

LEt L be the length of the pool

The width of the pool is 7 centimeters less than the length of the pool.

width = length - 7

W= L-7

Given perimeter = 446

Perimeter of rectangle = 2(length)+2(width)

446 = 2(L) + 2(W)                    we know W = L-7

446 = 2(L) + 2(L-7)    

446 = 2L + 2L - 14

Add 14 on both sides

460 = 4L

divide by 4 on both sides

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5 0
3 years ago
Read 2 more answers
How many milliliters equal 1942 cm?
stiks02 [169]
1cm³=1mL
1942cm=x mL

    1cm³          1942cm³
________ = ________
   1mL              x mL

Cross multiply
1x=1942
divide both sides by 1
x=1942mL

Answer=1942mL

8 0
3 years ago
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Well its a pretty strong wind the answer is 75 mph

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Now subtract 1800 from that and you get 300

But you’re still not done because 300 is the number of miles effected by the wind in the whole flight of 4 hours.

So just divide it by 4 and you get 75. So the wind is a 75 mph wind.

Brainliest my answer if it helps you out?
7 0
3 years ago
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