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Ronch [10]
3 years ago
15

Solve the quadratic equation 6x²-5x-21=0

Mathematics
1 answer:
Brut [27]3 years ago
5 0

Answer:

the answer for your problem is -3/2 by my calculations. Just had a lesson on quadratic equations in class

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The shipping fee to send a package via US Priority Mail costs $6 per pound and includes a $5 insurance fee. If an equation is wr
Alik [6]

Answer:It’s B

Step-by-step explanation:

8 0
2 years ago
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Mike collected milk from 3 of his cows at the dairy farm. from the first cow, he collected 4/5 gallon of milk. the second cow pr
Oksi-84 [34.3K]

Answer:

(A) 2 3/10

(B) 1 7/15

Step-by-step explanation:

(A) Add the gallons he collected together to get the total amount of milk he started with: 4/5 + 6/8 + 3/4 = 2 3/10 gallons of milk.

(B) Take that number, 2 3/10, and subtract the amount of milk he has left to get the amount of milk he used. 2 3/10 - 5/6 = 1 7/15

7 0
3 years ago
How do i solve m - 4/9 = -2 67/90
Diano4ka-milaya [45]

Answer:

m=-23/10

Step-by-step explanation:

-2 67/90=-247/90

m-4/9=-247/90

m=-247/90+4/9

m=-247/90+40/90

m=-207/90

m=-23/10

3 0
2 years ago
Which of the following is not a Pythagorean triple?
Ierofanga [76]

Answer:

  (7, 24, 26)

Step-by-step explanation:

A Pythagorean triple must have an odd number of even numbers. The triple (7, 24, 26) is not a Pythagorean triple.

_____

<em>Additional comment</em>

For an odd integer n, a triple can be formed as ...

  (n, (n²-1)/2, (n²+1)/2)

That is, the following will be Pythagorean triples.

  • (3, 4, 5)
  • (5, 12, 13)
  • (7, 24, 25)
  • (9, 40, 41)
  • (11, 60, 61)

Another series involves even numbers and numbers separated by 2:

  (2n, n²-1, n²+1)

  • (8, 15, 17)
  • (12, 35, 37)
  • (16, 63, 65)

In this list, if n is not a multiple of 2, the triple will be a multiple of one from the odd-number series.

It is a good idea to remember a few of these, as they tend to show up in Algebra, Geometry, and Trigonometry problems.

8 0
2 years ago
Asap I will fail it’s due soon
Elan Coil [88]

Answer:

See explanation

Step-by-step explanation:

1. From the graph of absolute value function:

a. The domain is x\in (-\infty, \infty)

b. The range is y\in [0,\infty)

c. The graph is increasing for all x>0

d. The graph is decreasing for all x

2. From the graph of quadratic function:

a. The domain is x\in (-\infty, \infty)

b. The range is y\in (-\infty,0]

c. The graph is increasing for all x

d. The graph is decreasing for all x>0

4 0
2 years ago
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