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icang [17]
3 years ago
14

Write the quadratic equation in standard form and then choose the value of "b." (2x - 1)(x + 6) = 0 -4 11 12

Mathematics
1 answer:
frozen [14]3 years ago
7 0

Answer:

2x^2 + 11x - 6

b = 11

Step-by-step explanation:

To write the equation in standard form, use the distributive property to multiply. Then combine like terms.

(2x - 1)(x + 6)

2x^2 - x + 12x - 6

2x^2 + 11x - 6

Now written in the standard form of a quadratic ax^2 + bx + c, the value of b here is 11.

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The area of a rectangle is 60 cm2 If the width of the
aleksklad [387]

The length of the rectangle is 10 cm and perimeter of the rectangle is 32 cm.

Step-by-step explanation:

Given,

The area of rectangle = 60 sq cm

Width (b) of the rectangle = 6 cm

To find the length and perimeter of the rectangle.

Formula

The area of the rectangle = l×b

The perimeter of the rectangle = 2(l+b)

According to the problem,

l×b = 60

or, l×6 = 60

or, l = 60÷6 = 10

Length (l) = 10 cm

Perimeter = 2×(10+6) cm = 32 cm

6 0
3 years ago
A sofa is on sale for $283.80, which is
ikadub [295]
283.80 + 67% = 473.94
I believe that is it
4 0
3 years ago
Read 2 more answers
A firm manufactured 1000 Tv sets during its first yeae the total firns production during 10 years of operation is 29035 sets If
Alexus [3.1K]

Answer: the increase each year is 423 tv sets

Step-by-step explanation:

The formula for determining the sum of n terms of an arithmetic sequence is expressed as

Sn = n/2[2a + (n - 1)d]

Where

n represents the number of terms in the arithmetic sequence.

d represents the common difference of the terms in the arithmetic sequence.

a represents the first term of the arithmetic sequence.

From the information given,

n = 10 years

a = 1000

S10 = 29035

We want to determine d which is the amount by which the production increased each year. Therefore, the sum of the first 10 years would be

29035 = 10/2[2 × 1000 + (10 - 1)d]

29035 = 5[2000 + 9d]

29035/5 = [2000 + 9d]

9d = 5807 - 2000 = 3807

d = 3807/9 = 423

3 0
3 years ago
Please help meeeeee thanksss
Alex

Answer:

Step-by-step explanation:

it's 3     hmmm it tells you rise over run.. just about where they are asking for the answer.. what do you not get about the question?  

3 0
3 years ago
The volume n divided by ten is one hundred
Lesechka [4]
1000 because 100 divide my 10 is 10 so just add a zero
4 0
4 years ago
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