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wolverine [178]
3 years ago
11

Solve the quadratic by factoring 4x2+x=-7x-3

Mathematics
1 answer:
DedPeter [7]3 years ago
4 0

Answer:

x = -3/2

x = -1/2

Step-by-step explanation:

4x^2 + 8x + 3

4x^2 + 2x + 6x + 3

2x(2x+1) + 3(2x+1)

(2x + 3) (2x + 1)

x = -3/2

x = -1/2

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Add 3 7/12 +2 7/9. Simplify the answer and write as a mixed number.
AlexFokin [52]

3 7/12 = 43/12

2 7/9 = 25/9

both denominators must be the same to add together.

(25/9)x 12

(43/12) x 9

300/108 + 387/108 =

687/108

which in its simplest form is 229/36

and in a mixed number is 6 13/36

6 0
3 years ago
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Ten slips of paper labeled from 1 to 5 are placed in a hat. The first slip of paper is not replaced before selecting the second
vagabundo [1.1K]

Answer:

1/10

Step-by-step explanation:

There are two numbers less than 3 (1 and 2), and one number greater than 4 (5).

When the first slip is drawn, there are five slips in the hat, so the probability of a number less than 3 is 2/5.

When the second slip is drawn, there are four slips in the hat, so the probability of a number greater than 4 is 1/4.

Therefore, the total probability is (2/5) (1/4) = 1/10

6 0
3 years ago
It takes Dennis 1 hour to drive 65 miles, 2 hours to drive 130 miles, and 3 hours to drive 195 miles. Write an equation for the
lesya692 [45]

Answer:

y=65x

Step-by-step explanation:

x represents the # of hours

6 0
3 years ago
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gavin bought 2 1/2 cubic yards of topsoil for $75 what is the unit rate in cost per cubic yard for the topsoil
Kruka [31]

Answer:

$30

Step-by-step explanation:

Divide the cost ($75) by the yards (2 1/2) to get $30 per yard.

7 0
3 years ago
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Please help. Thank you!
Makovka662 [10]

Answer: See explanation

Step-by-step explanation:

By the Triangle Inequality Theorem, the length of the side must be greater than 1 ft because the sum of two side lengths must be greater than the length of the third side. The third side must be less than 7 ft but greater than 1 ft.

Triangle inequality: 1 < x < 7

Hope that helped!

3 0
3 years ago
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