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Wewaii [24]
3 years ago
15

Solve each equation using the quadratic formula. Find the exact solutions. 6n^2 + 4n - 11

Mathematics
2 answers:
Murrr4er [49]3 years ago
7 0

Answer:

Does anyone know how to do this?

Step-by-step explanation:


Paul [167]3 years ago
5 0

Answer:

\frac{-2\pm\sqrt{70}}{6}}

Step-by-step explanation:

The quadratic formula is \frac{-b\pm\sqrt{b^2-4ac}}{2a}, where a, b, and c are values in the quadratic ax^2 + bx + c. Plug in the values to get \frac{-4\pm\sqrt{4^2-4(6)(-11)}}{2\cdot6} \implies \frac{-4\pm\sqrt{16+264}}{12} \implies \frac{-4\pm2\sqrt{70}}{12} = \boxed{\frac{-2\pm\sqrt{70}}{6}}

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PLEASE ANSWER RIGHT AWAY
BlackZzzverrR [31]

Answer:

A- control group

Since group A is tested under normal condition, it is the control group. Control group is separated from other groups so that the independent variable being tested cannot influence the result.

8 0
3 years ago
Simplify: 4w9+(-2w9) enter the original expression if it cannot be simplified
slavikrds [6]
18w (please check for sure though, cause im not 100% ) 
6 0
2 years ago
HELP ME PLEASE SMART KIDS ONLY
bagirrra123 [75]

Answer:

x = 137

Step-by-step explanation:

Step-by-step explanation:

∠43° and ∠x° are same side exterior angles as they are on the same side as the transversal but outside the parallel lines. The 2 angles are supplementary, hence

x + 43 = 180 ( subtract 43 from both sides )

x = 137

3 0
3 years ago
Given f(x) =3x+7 find f(5)
ra1l [238]

Answer:

22

Step-by-step explanation:

f (5)=3 (5)+7

f (5)=15+7

f (5)=22

8 0
3 years ago
simon makes 30 cakes gives 1/5 of the cakes to sali. He gives 10% of the 30 cakes to jane what fraction of the fake cakes does h
dexar [7]

Total number of cakes made by Simon = 30 cakes.

Number of cakes gave to Sali = 1/5 Of total cakes = 1/5 * 30 = 6 cakes.

Number of the cakes gave to Jane = 10% of 30 cakes

10% can be written as 10/100 in fracions and in decimals it would be 0.10.

Therefore, 10% of 30 cakes = 0.10 times 30 = 3 cakes.

Total number of cakes left = Total cakes made - Cakes gave to Sali - Cakes gave to Jane = 30-6-3

Therefore, Total number of cakes left = 21.

21 cakes left our of 30 cakes.

21 out of 30 could be written in fracion form as 21/30.

We can reduce this fracion in simplest form by dividing top and bottom by 3, we get

7/10.

Therefore, 7/10 fraction of the cakes does he have left.

8 0
3 years ago
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