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sasho [114]
4 years ago
12

Solve the equation without the use of a calculator. please Help!!! Thank you!!!

Mathematics
1 answer:
artcher [175]4 years ago
6 0

4x^4+15x=12x^3+5x^2 \\ 4x^4-12x^3-5x^2+15x=0\\ x(4x^3-12x^2-5x+15)=0\\ x(4x^2(x-3)-5(x-3))=0\\ x(4x^2-5)(x-3)=0\\ x(2x-\sqrt5)(2x+\sqrt5)(x-3)=0\\ x=0 \vee x=\dfrac{\sqrt5}{2} \vee x=-\dfrac{\sqrt5}{2} \vee x=3

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Sweet tea has two orange picks for every green pig if six of the pics are green how many pics are orange
PIT_PIT [208]

35 is that right cuz Ik it is

3 0
3 years ago
A triangle has the coordinates
fiasKO [112]

Answer:

coordinates of its image

A' = ( -4, -1)

B' =( -3, -3)

C' = ( 0, 2)

Step-by-step explanation:

Reflect in y-axis means mirror it's points in the y -axis.

This means that the x coordinate of each point, changes only. Any mirrored point in the y-axis, will change only, by multiplying the x-coordinate by -1.

(Remember, zero multiplied by -1 remains 0).

Given are these points A, B, and C.

A = (4, -1)

B = (3,-3)

C = (0, 2)

After mirroring in the y- axis you get:

A' = ( -4, -1)

B' =( -3, -3)

C' = ( 0, 2)

8 0
3 years ago
Emily rented a bike from kaylas bikes. It cost $15 plus $5 per hour.
crimeas [40]

Answer: 7 hours.

Step-by-step explanation:

The rental price is 15. Add 5 per hour (5x) and the total must be equal to $50

15+5x=50

Solve for x;

5x=50-15\\5x=35\\x=\frac{35}{5}\\ x=7

4 0
3 years ago
What is the scale of the drawing?
Murrr4er [49]

The ratio of the areas is

16\textrm{ cm} \times 8 \textrm{ cm} : 72 \textrm{ sq m}

16 \times 8 \textrm{ cm}^2 : 9 \times 8 \textrm{ m}^2

16 \textrm{ cm}^2 : 9\textrm{ m}^2

The scale is the ratio of the lengths, which is the square root:

4 \textrm{ cm} : 3 \textrm{ m}

First choice


4 0
3 years ago
Two cars got an oil change at the same auto shop. The shop charges customers for each quart of oil plus a flat fee for labor. Th
amm1812
(5,22.45),(7,25.45)
slope = (25.45 - 22.45) / (7 - 5) = 3/2 or 1.5

y = mx + b
slope(m) = 1.5
use either of ur points...(5,22.45)...x = 5 and y = 22.45
now sub and find b
22.45 = 1.5(5) + b
22.45 = 7.5 + b
22.45 - 7.5 = b
14.95 = b

so ur equation is : y = 1.5x + 14.95.......this means that each quart of oil costs $ 1.50 and the labor fee costs $ 14.95
3 0
4 years ago
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