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Ann [662]
4 years ago
12

9x^2+6x+5=0, solve using the quadratic formula

Mathematics
1 answer:
AleksAgata [21]4 years ago
8 0

Step by step explanation:

9x^{2}+6x+5=0

Uses the "a", "b", and "c" from "ax^{2} + bx + c", where "a", "b", and "c" are numbers

So in this case:

a would be 9

b would be 6

c would be 5

Then plug in from there..

Another way you can do it is using the square method.

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Can someone help please??!??!???!?!?!?!??!
STALIN [3.7K]
To multiply these parenthesis, you distribute
w*w=w^2
w*2=2w
-8*w=-8w
-8*2=-16

Then you add all these together for the answer:
w^2+2w-8w-16
w^2-6w-16 (combine like terms)

Hope this helps
3 0
3 years ago
Read 2 more answers
Larina received a $50 gift card to an online store. She wants to purchase some bracelets that cost $8 each. There will be a $10
Firdavs [7]

Answer

5

Step-by-step explanation:

8n+10=50

   -10   -10

8n=40

8n/8 = 40/8

n= 5

She will be able to buy 5.

DOUBLE CHECK:

8(5)+10=50

40+10=50

50=50

4 0
3 years ago
0.25 to 0.5 Find the percent of change. Round to the nearest tenth of a percent if necessary.
Olegator [25]
25%  just like money 25 50 75 1.00    same thing just going from .25 to .5   so 25%
8 0
3 years ago
Read 2 more answers
If a babysitter babysat for 2 hours each night for 10 night. she made $180. she wants to she how much she makes per hour
Ilia_Sergeevich [38]

Answer:

The answer would be $9 dollars per hour.

Step-by-step explanation:

Let's start off with getting the basics down. She babysits for 2 hours each night for 10 total nights, so we would multiply the two and get 20 hours of babysitting service. We would then take $180 and divide the total money amount by the number of hours to get your money per hour. In this case, the answer is $9 per hour.

4 0
3 years ago
Read 2 more answers
If you can buy 4⁄5 of a pound of ham for 3 dollars, how much can you purchase for 10 dollars? Write your answer as a fraction of
ryzh [129]
= [(4/5)/3] * 10 pounds
= (4 * 10)/15 pounds
= 40/15 pounds
= 8/3 pounds
= 2 2/3 pounds
Answer: 2 2/3 pounds
7 0
3 years ago
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