3 years ago

Please help and explain how and please don’t do grouping method!

Mathematics

1 answer:

MrRissso [65]3 years ago

3 0

Answer: (3 x --- 2) (6x--- 1)

Step-by-step explanation: Common factors from the two pairs

Rewrite in factored formed

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I got b = 5 but I wanted to make sure from you beautiful ppl <3

GrogVix [38]

Answer:

b=5

Step-by-step explanation:

10 = -2b + 4b

Combine like terms

10 = 2b

Divide each side by 2

10/2 = 2b/2

5 = b

4 0

3 years ago

Read 2 more answers

If an=5n-3 find the common difference

Hitman42 [59]

Answer:

d = 5

Step-by-step explanation:

The common difference d of an arithmetic sequence is

d = a₂ - a₁ = a₃ - a₂ = $a_{n}$ - $a_{n-1}$

Given

$a_{n}$ = 5n - 3

Generate the first 2 terms of the sequence by substituting n = 1, n = 2

a₁ = 5(1) - 3 = 5 - 3 = 2

a₂ = 5(2) - 3 = 10 - 3 = 7

d = 7 - 2 = 5

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4 years ago

The length of a rectangle is 2 cm less than twice the width. The area of the rectangle is 112 cm2. Find the length and width of

ELEN [110]

Let breadth be x

Length=2x-2

We know

$\boxed{\sf Area=Length\times Breadth}$

$\\ \sf\longmapsto 112=x(2x-2)$

$\\ \sf\longmapsto 2x^2-2x-112=0$

$\\ \sf\longmapsto x=-7\:or\:x=8$

Ignore negative value

Now

$\\ \sf\longmapsto Length=2x-2=2(8)-2=16-2=14$

$\\ \sf\longmapsto Breadth=8$

3 0

3 years ago

The probability that Edward purchases a video game from a store is 0.67 (event A), and the probability that Greg purchases a vid

ankoles [38]

Easy! The answer is B!

5 0

3 years ago

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Heyy could you help me out with this question I have been stuck in this question??

sveta [45]

Answer:

Choice A.

Step-by-step explanation:

tan < ABC = 60/40

So m < ABC = 56.31 degrees.

This makes m < DBC = 56.31 / 2 = 28.15 degrees

tan 28.15 = DC / 40

DC = 40 tan 28.15

= 21.407 ft.

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3 years ago