3 years ago

Using the discriminant, how many real number solutions does this equation have? 3x^2 – 2 = 5x

1 answer:

7 0

The discriminant of this equation is 49. The solutions for this equation are x=2 and x=- $\frac{1}{3}$
I hope that helps.

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Which expression is equivalent to 4(9x2−2)? 36x2−10−2 16x2+14−20x2−2 18x2−12−18x2+2 30x2−10+6x2+2

Snowcat [4.5K]

Answer:

4(9×2-2)

= 36×8-8

= 288-8

= 280

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4 years ago

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Can you help me calculate the angles from this kite in the attachment?<br><br><br>AY =, XZ =,

Setler [38]

Answer:

AY=8, XZ=20

Step-by-step explanation:

WY=WA+AY, plug in values: 14=6+AY, subtract 6 from both sides: 8=AY, AY=8cm

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3 years ago

200 + 10x = 120 + 15x now solve the equation to find x, the number of hours that both companies will charge the same ammount

torisob [31]

Answer:

Step-by-step explanation:

Given the equation, $200 + 10x = 120 + 15x$ , let's solve for x as follows,

Subtract 200 from both sides

$200 + 10x - 200 = 120 + 15x - 200$

$10x = - 80 + 15x$

Subtract 15x from both sides

$10x - 15x = - 80 + 15x - 15x$

$-5x = - 80$

Divide both sides by -5

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3 years ago

An airline charges $150 for a ticket and $20 for each bag.

AnnyKZ [126]

Answer:

Step-by-step explanation:

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3 years ago

–5(3 – q) + 4 = 5q – 11

mrs_skeptik [129]

Answer:

Step-by-step explanation:

–5(3 – q) + 4 = 5q – 11

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+5q - 5q = -11 + 11

0=0

6 0

3 years ago