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Helen [10]
3 years ago
12

Solve the equation by completing the square. Round to the nearest hundredth if necessary. 3x^2 - 6x - 24 = 0

Mathematics
1 answer:
Fofino [41]3 years ago
8 0

x= 4, -2 or 3(x-4)(x+2)

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If the flare is launched with an initial velocity of 144 feet per second, find the height after 2 seconds. The answer is not 288
Rashid [163]
H= ut -16 t^2

h = 144(2) - 16 (4)

= 288 - 64 = 224
4 0
3 years ago
The sum of −7 times a number and 8 times the sum of the number and 1 is the same as the number minus 7.
Novay_Z [31]

Answer:

n has no value.

There is no solution to this equation

Step-by-step explanation:

let n be the number

In pieces:

sum of the number and 1: (n + 1)

8 times the sum: 8(n + 1)

-7 times a number: -7n

sum of -7 times and...: -7n + 8(n + 1)

number minus 7: n - 7

the same as: =

All together:

-7n + 8(n + 1) = n - 7

-7n + 8(n+1)=n-7

-7n + 8n+8=n-7

0=-15

3 0
3 years ago
If you can help with the explanation I will mark brainpower
Oksanka [162]

Answer:

It is 90º

Step-by-step explanation:

Looking at the picture, we realize that the angle direcly beside it, EGD, is 90º. Now, both angles form a straight line, which equals 180º. 180-90= 90º.

5 0
3 years ago
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Two questions please help?
FromTheMoon [43]
21.5, just took the test!!!!
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4 years ago
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The homecoming dance is going to be held in the school gym which is 300 ft by 300 ft. The fire marshal requires 4
Monica [59]

Find the area of the gym and divide that by the required space.

Area of gym: 300 x 300 = 90,000 square feet.

Number of people: 90,000 / 4 =  22,500

They can sell 22,500 tickets.

7 0
3 years ago
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