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solmaris [256]
2 years ago
14

Determine the number of real solutions for the equation: 6x^2+8x=7

Mathematics
1 answer:
densk [106]2 years ago
7 0

Answer:

Step-by-step explanation:

You could factor this to find out how many real roots you have, but it's easier to use the rule of the discriminate.  The discriminate comes from the quadratic formula:

b^2-4ac

Plug in the numbers from the quadratic and see what the value of it is.  If the:

discriminate < 0, you have 2 imaginary roots

discriminate = 0, you have 1 real root, multiplicity 2 and

discriminate > 0, you have 2 real roots

Our b is 8, our a is 6 and our c is -7 (remember you have to set the polynomial equal to 0 to do this).

8^2-4(6)(-7)=232

Because 232 is > 0, we have 2 real roots.

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Which of the ratios below is equivalent to 3:5? Select all that apply.
antiseptic1488 [7]

Answer:

D

Step-by-step explanation:

3:5 is equivalent(equal) to 15:25.

15÷5 and 25÷5 is equal to 3:5.

Hope this helped!

5 0
2 years ago
How do I do this again ? I totally forgot ‍♀️
AnnZ [28]
5 + (-3) - 6
------------------------
Let's do the first part
5 + (-3) whenever you see a problem where you add a negative number just think of it as subtracting
5 - 3 = 2
-------------------------------------------
2 - 6 = -4
-4 is your answer
8 0
3 years ago
Bill's recipe for onion soup call for 4.0lb of thinly sliced onions. If an onion has an average mass of 115g, how many onions do
musickatia [10]

Answer:

1. 16\ onions

2. 4,040.91\ kg

Step-by-step explanation:

1. You know that the average mass of an onion is 115 grams and Bill needs 4.0 pounds.

Then, since 1\ lb=453.592\ g, we can make the following conversion:

(4.0\ lb)(\frac{453.592\ g}{1\ lb})=1,814.37\ g

Then, the number of onions Bill needs is:

(1,814.37\ g)(\frac{1\ onion}{115\ g})=15.77\ onions ≈ 16\ onions

2.  Since 1\ kg=2.20462\ lb, we can make the following conversion:

(11\ lb)(\frac{1\ kg}{2.20462\ lb})=4.98\ kg

 Knowing that all the potatoes sold today at the store bring in $1,420 and 4.98 kilograms of potatoes is $1.75, we can calculate the amount of kilograms the grocery shoppers bought:

(\$1,420)(\frac{4.98\ kg}{\$1.75})=4,040.91\ kg

6 0
2 years ago
-n+(-3)+3n+5<br><br> Combing like terms :
Karolina [17]

Answer: 2n + 2 should be your answer

3 0
2 years ago
Mrs. Virtueson has 1/4 of a pecan pie. She wants to give half
cricket20 [7]

Answer:

What fractional part of a pie will each get

each will get 1/8

6 0
3 years ago
Read 2 more answers
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