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3 years ago

Solve using the quadratic formula. 3x^2+2x+1=0

1 answer:

7 0

4.3 Solving 3x2-2x-1 = 0 by the Quadratic Formula .

According to the Quadratic Formula, x , the solution for Ax2+Bx+C = 0 , where A, B and C are numbers, often called coefficients, is given by :

- B ± √ B2-4AC
x = ————————
2A

In our case, A = 3
B = -2
C = -1

Accordingly, B2 - 4AC =
4 - (-12) =
16

Applying the quadratic formula :

2 ± √ 16
x = —————
6

Two real solutions:

x =(2+√16)/6

or:

x =(2-√16)/6

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Mr Smith is making a 4 question quiz. looking at a bank of quiz questions there are 17 choices for question one, 16 choices for

Harrizon [31]

Answer:

4,352

Step-by-step explanation:

17 × 16 × 8 × 2

4352

8 0

2 years ago

You have a small business making and delivering box lunches. You calculate your average weekly cost y of producing x lunches usi

kogti [31]

250 lunches are produced by the small business in last week.

Step-by-step explanation:

It is given that,

y ⇒ the average cost per week.
x ⇒ the number of lunches produced per week.

The function relating these two factors x and y is given as y = 2.1x + 75

The cost of the last week is y = $600.
The lunches made last week is x = unknown.

To find the value of x :

Substitute y= 600 in the given function,

⇒ 600 = 2.1x + 75

⇒ 2.1x = 600 - 75

⇒ x = 525 / 2.1

⇒ x = 250

Therefore, the lunches prepared last week is 250.

6 0

3 years ago

magus hosted a party and has 1/4 of a pizza party left over. six people will share the leftovers equally. what is a reasonable a

laiz [17]

We’ll divide 1/4 by 6. So 1/4 x 1/6 is 1/24.

ANSWER:

1/24. Hope this helped. Have a great day. A thank you and (or) a brainliest is always appreciated! Goodbye!

8 0

2 years ago

Derek rolls a die many times and records the number of times he rolls a three. Arrange the following situations in order from th

mrs_skeptik [129]

The sentence sequence is "BDAC".

Step-by-step explanation:

Derek is rolling a die many times and he is recording when he rolls a dice of three. So we have to identify from largest to smallest.
The first largest is 30 times. Because of 3*10=30, so he rolls three ten times. So the first option is B.
The second largest is 20 times. Derek rolled dice three-six times because of 3*6=18. So the second option is D.
The third-largest is 10 times. In this, he rolls three times. Because of 3*3=9. So the option is A.
The final option is C. Derek rolls five times. 3*1=3. In this, he rolled only one time. So the sequence is BDAC.

5 0

3 years ago

Read 2 more answers

Can someone answer these 2 questions, thanks!

mash [69]

Answer:

1, answer ..

b, 50% because add this

40+10=50

Step-by-step explanation:

and 2nd one i dont know but i studied it i did not remember

8 0

1 year ago