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3 years ago

8

Need help I forgot how to do this

1 answer:

Marat540 [252]3 years ago

8 0

Answer:

A.

Step-by-step explanation:

you have to find the discriminant

b²-4ac for each equation

if discriminant < 0 no real solutions because will be negative under the squareroot whhan you try to find the roots

if discriminant = 0 there is only one solution

if discriminant > 0 two real solutions

for your given problems

A. discriminant =(-2)²-4*2*15 will be negative

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ANSWER CORRECTLY AND ILL MARK YOU AS THE BRAINLIEST

lana66690 [7]

Answer:

2/3

Step-by-step explanation:

im pretty sure that's the answer

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2 years ago

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AlekseyPX

Answer:

13 1/2

Step-by-step explanation:

Just multiply 3.5 and 4.75

AKA

3 1/2 and 4 3/4

Change 1/2 into 2/4 so the denominators are the same

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3 years ago

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TiliK225 [7]

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3 years ago

Quick math question ghghghujhghj

yawa3891 [41]

$\text{Hey there!}$

$\bf{3(4x + 1) - (5x + 7)}$

$\text{FIRST: distribute the NEGATIVE sign}$ $\text{(On the RIGHT side of the problem/equation)}$

$\bf{-1 (5x + 7)}$

$\bf{-1(5x) + -1(7)}$

$\bf{-1(5x) = -5x}$

$\bf{-1(7) = -7}$

$\bf{\underline{= -5x - 7}}$

$\text{SECOND: distribute the LEFT side of the problem/equation}$

$\bf{3(4x+1)}$

$\bf{3(4x) + 3(1)}$

$\bf{3(4x) = 12x}$

$\bf{3(1) = 3}$

$\bf{\underline{12x+3}}$

$\text{THIRD: make the new equation}$

$\text{Equation becomes: \bf{12x + 3 - 5x - 7}}$

$\text{FOURTH: COMBINE your like terms}$

$\bf{(12x - 5x) + (3 - 7)}$

$\bf{12x - 5x = 7x}$

$\bf{3 - 7 = -4}$

$\text{ANSWER}$

$\boxed{\text{Thus, your answer is: \boxed{\huge\text{\bf7x - 4}}}}}\checkmark$

$\text{Good luck on your assignment and enjoy your day!}$

~ $\frak{LoveYourselfFirst:)}$

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jenyasd209 [6]

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