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2 years ago

Factor the polynomial completely using the

2 answers:

7 0

The value of ac is 24.
The value of b is 11.
The equivalent factored form of the polynomial is (x+3)(x+8).
Hope that helped! :)

mestny [16]2 years ago

6 0

Answer:

1. 24

2. 11

3. (x+3)(x+8)

Hope that helped

Step-by-step explanation:

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Mariana solved the equation below. Identify her ERROR and EXPLAIN what she did wrong. -3(2x-4)=-12 -6x-12=-12 -6x=0 x=0

nydimaria [60]

Answer:

Her error was multiplying -3 and -4 which gives +12 but she wrote -12 instead

Step-by-step explanation:

Mariana workings:

-3(2x - 4) = -12

-6x - 12 = -12

Her error was multiplying -3 and -4 which gives +12 but she wrote -12 instead

-6x = 0

x=0

Correct workings:

-3(2x - 4) = -12

-6x + 12 = - 12

-6x = -12 - 12

-6x = -24

x = -24/-6

x = 4

8 0

2 years ago

Line segment NY has endpoints N(-11, 5) and Y(3,-3).

777dan777 [17]

Given:

Line segment NY has endpoints N(-11, 5) and Y(3,-3).

To find:

The equation of the perpendicular bisector of NY.

Solution:

Midpoint point of NY is

$Midpoint=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)$

$Midpoint=\left(\dfrac{-11+3}{2},\dfrac{5-3}{2}\right)$

$Midpoint=\left(\dfrac{-8}{2},\dfrac{2}{2}\right)$

$Midpoint=\left(-4,1\right)$

Slope of lines NY is

$m=\dfrac{y_2-y_1}{x_2-x_1}$

$m=\dfrac{-3-5}{3-(-11)}$

$m=\dfrac{-8}{14}$

$m=\dfrac{-4}{7}$

Product of slopes of two perpendicular lines is -1. So,

$m_1\times \dfrac{-4}{7}=-1$

$m_1=\dfrac{7}{4}$

The perpendicular bisector of NY passes through (-4,1) with slope $\dfrac{7}{4}$ . So, the equation of perpendicular bisector of NY is

$y-y_1=m_1(x-x_1)$

$y-1=\dfrac{7}{4}(x-(-4))$

$y-1=\dfrac{7}{4}(x+4)$

$y-1=\dfrac{7}{4}x+7$

Add 1 on both sides.

$y=\dfrac{7}{4}x+8$

Therefore, the equation of perpendicular bisector of NY is $y=\dfrac{7}{4}x+8$ .

6 0

2 years ago

MATH FRACTIONS!!<br> What is 3/4 divided by 5/6 how to solve it the step by step. I NEED IT

Reil [10]

Answer:

9/10

Step-by-step explanation:

the rule says

$\frac{a}{b} /\frac{c}{d} =\frac{ad}{bc}$

so in our case

a=3

b=4

c=5

d=6

so the division is

$\frac{3*6}{4*5} \\\\=\frac{18}{20}$

we can simplify

$\frac{18}{20} \\\\=\frac{2(9)}{2(10)} \\\\=\frac{9}{10}$

that's our answer

I don't know if you need step by step of the rule, if you need let me know

6 0

2 years ago

Read 2 more answers

I need help on 4 & 5 pls

Allushta [10]

What do you need help with? it helps us to know the question!

7 0

2 years ago

Find a compatible dividend for the division problem.<br><br> 492 divided 87<br> ? Divided 90

jeyben [28]

Answer:

0.0628352490421456‬ or 0.1

Step-by-step explanation:

Step by step solution :

Step 1 :

164

Simplify ———

Equation at the end of step 1 :

164

——— ÷ 90

Step 2 :

164

Divide ——— by 90

Final result :

———— = 0.06284

1305

7 0

2 years ago