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Marrrta [24]
3 years ago
7

Solve using quadratic formula 3n^2-2n-5=0

Mathematics
1 answer:
Mumz [18]3 years ago
3 0

=5/3   =−1

Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

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13. Mis the midpoint of PR, PM = 2x + 5, and MR = 4x – 7. Solve for x and find PR.
enyata [817]

Add 2x + 5 and 4x - 7

Then you isolate the variable or “get rid of” the numbers that re stopping you from getting “x”.

By doing the inverse operation.

If you add ___ you subtract ____ it form itself

If you subtract ___ you add ____ To itself.

So you Cancel out by getting rid of the other numbers.

Same thing with multiplying and dividing.

If you multiply ____ you divide___ but don’t divide “x”

Only the integer.

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8 0
4 years ago
What is the answer to 3-2
Natasha2012 [34]
The answer is 1.
3-2=1
5 0
4 years ago
Read 2 more answers
Yadier killed 3 4/5 miles from the Nature Center to the waterfall. Then he hiked another 2 2/3 miles to Overlook Point. How far
EastWind [94]

Answer: estimate 7

exact: 6 7/15

Step-by-step explanation: for the estimate round 3 4/5 to 4 and 2 2/3 to 3 and 4 + 3 = 7

for the exact number convert 3 4/5 to 3 12/15

and convert 2 2/3 to 2 10 /15

then add 3 + 2 = 5

and 12/15 + 10/15 = 22/15

convert 22/15 to a mixed number which is 1 7/15

then 5 + 1 7/15

answer 6 7/15

hope this helps mark me brainliest if it helped

7 0
4 years ago
Prachi was 5 kilometers east of her home when she began driving farther east at 70 kilometers per hour. Let f(n) be Prachi's dis
Yanka [14]

Answer:

Prachi was 5 kilometers east of her home when she began driving farther east at 70 kilometers per hour.  

Let f(n) be Prachi's distance from her home at the beginning of the nth hour of her drive.  

f is an arithmetic sequence.  

Write an explicit formula for the sequence.  

f(n) = 70n + 5

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
The area of a circle is 144 π cm2 what is the diameter of the circle
never [62]

Step-by-step explanation:

Area = pi × r²

144 pi cm² = pi × r²

144 pi ÷ pi = r 2

root 144 = r

12 cm = r

diameter = 2r = 2(12) = 24 cm

4 0
3 years ago
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