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3 years ago

I need help asap! math problem

Mathematics

1 answer:

Andrei [34K]3 years ago

7 0

Answer:

second optoin

Step-by-step explanation:

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What is the slope and y-intercept for 6x-2y=16

nikklg [1K]

Answer:

x= (8/3,0)

y=(0,-8)

Step-by-step explanation:

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At a wedding, 54 chairs were arranged in 6 equal rows. How many chairs were in each row?

grin007 [14]

Answer:

the answer is 9

Step-by-step explanation:

9 times 6 equals 54

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Solve by completing the square :<br><br> 4x^2-12x+7=0

Amiraneli [1.4K]

Answer:

$x=\frac{3}{2}\pm\frac{\sqrt{2}}{2}}$

Step-by-step explanation:

we have

$4x^2-12x+7=0$

step 1

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$4x^2-12x=-7$

step 2

factor the leading coefficient

$4(x^2-3x)=-7$

step 3

Complete the square. Remember to balance the equation by adding the same constants to each side

$4(x^2-3x+1.5^2)=-7+1.5^2(4)$

$4(x^2-3x+2.25)=2$

simplify

$(x^2-3x+2.25)=0.5$

step 4

Rewrite as perfect squares

$(x-1.5)^2=0.5$

step 5

take square root both sides

$x-1.5=\pm\frac{1}{\sqrt{2}}$

Convert 1.5 in a fraction number

$x-\frac{3}{2}=\pm\frac{1}{\sqrt{2}}$

$x=\frac{3}{2}\pm\frac{\sqrt{2}}{2}}$

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3 years ago

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping? x2(4x + 1) – 2(4x + 1) x2(4x – 1) + 2(4x – 1) 4x2

Airida [17]

Looking at <span>4x3 + x2 – 8x – 2, I see immediately that x^2 can be factored out of the first 2 terms => 4x^2(x+1)
and -2 out of the last 2 terms => -2(4x+1).

Notice how the factor (4x+1) shows up twice.

We can factor this (4x+1) out, obtaining (x^2 - 2) (4x+1). These are the desired factors, found "by grouping."

</span>

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3 years ago

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Work out giving your answer in its simplest form 3/11 times 4/9

Marina86 [1]

Answer:

3/11 x 4/9 = 4/33 or in decimal form = 0.121212

Step-by-step explanation:

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