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3 years ago

Write an equivalent expression for –2x+7

Mathematics

1 answer:

kiruha [24]3 years ago

4 0

Step-by-step explanation:

This expression is in its simplest form.

We can only expand them:

-2x + 7 = 3x - 5x + 7

-2x + 7 = x - 3x + 9 - 2

-2x + 7 = -x - x + 3 + 4

....

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Write the explicit formula for the geometric sequence represented by the recursive formula. a1 = 11 an = 3 · an-1 A) an = 11 · 3

lozanna [386]

C. an= 11 * 3n-1. have funnnnn

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3 years ago

Read 2 more answers

Given a point on a line and the equation of a parallel or perpendicular line, write the equation of the line in point-slope form

Arlecino [84]

Answer: y - 5 = 0(x - 1)

==================================================

Explanation:

Recall that point slope form in general is written as such

y - y1 = m(x - x1)

where,

m is the slope

(x1,y1) is the point the line goes through

The given equation y = 7 can be written as y = 0x+7. So we see that this line has a slope of m = 0

Plug m = 0 along with the given point (x1,y1) = (1,5) into the point slope equation and we get

y - y1 = m(x - x1)

y - 5 = 0(x - 1)

which is the final answer

note: the equation in bold can be rearranged and simplified to get y = 5; however your teacher seems to want the answer in point-slope form, so we leave it as such.

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3 years ago

Karen rides her bike 4 mi in 20 min. How many miles will she ride in 1 h and 20 min?

Sever21 [200]

The answer is 84 miles

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3 years ago

What is the value of a if (2a +3) - (4a-8)= 7

mars1129 [50]

( 2a + 3 ) - ( 4a - 8 ) = 7
2a + 3 - 4a + 8 = 7
-2a + 11 = 7
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3 years ago

HELP ASAP : Find the largest value of n such that 5x^2+nx+48 can be factored as the product of two linear factors with integer c

Anna71 [15]

Answer:

$n=241$

Step-by-step explanation:

We are given

$5x^2+nx+48$

Let's assume it can be factored as

$5x^2+nx+48=(5x-s)(x-r)$

now, we can multiply right side

and then we can compare it

$5x^2+nx+48=5x^2-5rx-sx+rs$

$5x^2+nx+48=5x^2-(5r+s)x+rs$

now, we can compare coefficients

$rs=48$

$5r+s=-n$

$n=-(5r+s)$

now, we can find all possible factors of 48

and then we can assume possible prime factors of 48

$48=-+(1\times 48)$

$48=-+(2\times 24)$

$48=-+(3\times 16)$

$48=-+(4\times 12)$

$48=-+(6\times 8)$

Since, we have to find the largest value of n

So, we will get consider larger value of r because of 5r

and because n is negative of 5r+s

so, we will both n and r as negative

So, we can assume

r=-48 and s=-1

so, we get

$n=-(5\times -48-1)$

$n=241$

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3 years ago