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3 years ago

Log2x (2x^2+8x-6) =2

Mathematics

1 answer:

irinina [24]3 years ago

5 0

Answer:

$2x^3+8x^2-3x=0$

Step-by-step explanation:

$2x (2x^2+8x-6)=2\\multiply-all-in-bracets-by-2x\\4x^3+16x^2-6x=2\\devide-all-by-2\\2x^3+8x^2-3x=0$

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What percent was the server's tip if the customer left $1.75 for a $12.50 meal.

tatuchka [14]

12.5x=1.75

Solve for x:
1.75/12.5 = 0.14

1. Use the equation 12.5x=1.75
2. Now solve for x.
a. Divide 1.75/12.5
b. Now, you have .14
c. .14 is 14%
3. The answer is 14%

7 0

3 years ago

ANSWER QUICKLY PLEASE

Jet001 [13]

Answer:

answer below:)

Step-by-step explanation:

sin C= $\frac{opposite side}{hypotenuse side}$ = $\frac{7}{25}$

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3 years ago

I need help does anyone know?

Nuetrik [128]

Answer:

$19.6

Step-by-step explanation:

He bought 6 video games and 1 dvd

We know that each video game costs $2.7 and each dvd costs 3.4

To get the sum = v x 6 + d x 1

= 2.7 x 6 + 3.4 x 1

= 16.2 + 3.4

= $19.6

4 0

3 years ago

The width of a rectangle is two-thirds of its length, and its area is 216 square meters. What is the length? 12 m 18 m 27 m

olga55 [171]

Hope this helps you.

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3 years ago

5a - 9 + a = 9

Ne4ueva [31]

Answer:

a = 3

Step-by-step explanation:

1) Simplify 5a - 9 + a to 6a - 9.

$6a - 9 = 9$

2) Add 9 to both sides.

$6a = 9 + 9$

3) Simplify 9 + 9 to 18.

$6a = 18$

4) Divide both sides by 6.

$a = \frac{18}{6}$

5) Simplify 18/6 to 3.

$a = 3$

Therefor, the answer is, a = 3.

7 0

3 years ago