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3 years ago

Is there anyone here that knows how to solve quadratic equations using the quadratic formula?

Mathematics

2 answers:

Kay [80]3 years ago

7 0

Answer:

the quadratic formula is x = (-b +_ √b^2 -4ac)/2a

find a, b, and c by this: ax^2 +bx + c = 0

and plug the value into the quadratic formula

Ann [662]3 years ago

5 0

Answer:

Me, I just learned it, I can help

Step-by-step explanation:

Formula:

ax^2 + bx + c

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Mr. Moses baked 11 dozen cookies for his class.

sashaice [31]

Answer:

8 cookies for each student that was present

Step-by-step explanation:

11 total dozens

10 dozens were separated throughout the present students

He has a TOTAL of 19 students but FOUR were absent

19-4=15

a dozen is 12

so 12x10=120

120 divide by 15 = 8

7 0

3 years ago

Diane runs 10 miles in 55 minutes, how many minuets does she take per mile?

Brut [27]

Step-by-step explanation:

Hi!!

 It's simple, you can do it easily. 

no. of miles = 10 miles

time = 55 mins.

now,

no. of mins for 1 mile = no. of miles/ time

 = 10 /55

 =0.18181818 min.

so, she takes 0.181818 or 2/11 min per each mile.

Hope it helps...

5 0

4 years ago

Read 2 more answers

Which of the following expressions is 0.00012 written in scientific notation? A. 0.12 × 10^-3 B. 1.2 × 10^-4 C. 12 × 10^-5 D. 1.

In-s [12.5K]

Answer:

B. 1.2 x $10^{-4}$

Step-by-step explanation:

Scientific notation is a way of writing very large or very small numbers. A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10. For example, 650,000,000 can be written in scientific notation as 6.5 ✕ 10^8. Or, in this case it's the opposite since we have a negative number. Since it's a decimal it's multiplied by 10 still but the exponent is negative. All we need to do to find what the exponent would be in this case is to count the number of zeros before the "12." There are 4 zeros before the 12. So your exponent would be -4. Now all we need to do is write out "equation" per say.

1.2 x 10^-4

Hope this helps and have a nice day!

5 0

3 years ago

Read 2 more answers

Please help me, Thank you :)

aliina [53]

Answer:

I am pretty sure its the first one

7 0

3 years ago

Read 2 more answers

Rewrite 5a-(a-3b) in standard form

slamgirl [31]

So, -(a-3b) becomes -1(a-3b). Then, this becomes 5a-1a+3b. There is +3b because there is a double negative. So, 5-1=4, so your answer is 4a+3b. Pls brainliest

3 0

3 years ago

Is there anyone here that knows how to solve quadratic equations using the quadratic formula?​

Is there anyone here that knows how to solve quadratic equations using the quadratic formula?