4 years ago

How do i solve this i am very confused

Mathematics

1 answer:

AleksandrR [38]4 years ago

3 0

Answer:

Step-by-step explanation: Factor the polynomial: -2x3 - 4x2 - 6x

A. -2x(x2 + 2x+3)

B. -2x{-x2 - 2x - 3)

C. 2x(x2 + 2x+3)

D. -2x(-x2 - 4x - 6)

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When two people each measured a windows width, their results were 79 cm and 786 mm. Are these results equally precise? Explain.

rosijanka [135]

The second result is more precise because it's in millilitre,so if the first were to be fully precise,it should have been 78.6 cm.

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4 0

3 years ago

Please help with this question.

Vikki [24]

Answer-

The value of k is 6

Solution-

The trinomial given here,

$2x^2 + kx + 4$

While factoring a trinomial into two binomial, middle term factorization is followed.

The general form is,

$\Rightarrow ax^2+(a+b)x+b=(x+1)(ax+b)$

Comparing this with the given trinomial

$a = 2,\ b = 4,\ k = (a+b)\\\\\Rightarrow k =2+4=6$

Putting the value of k,

$=2x^2 + 6x + 4$

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Therefore, the value of k is 6

4 0

3 years ago

Find Equivalent Expression 1/2 (4x + 4)

Marrrta [24]

Answer:

2x+2

Step-by-step explanation:

1/2(4x)+1/2(4)=2x+2

8 0

3 years ago

1. A box contains red ink pens and blue ink pens. The ratio of the number of red ink pens to the number of blue ink pens is 6:1.

Luba_88 [7]

What I did is i took

1,932\6 and I got 322 for the red ink pens.

For the blue, you can figure it out..

Hope this helped! :)

8 0

3 years ago

3x+6+5x+4=90 help meee

konstantin123 [22]

3x+6+5x+4=90
Combine like terms
8x + 10=90
Subtract 10 from both sides
8x=80
Divide 8 on both sides
Final Answer: x= 10

5 0

3 years ago

Read 2 more answers