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3 years ago

Which equation is equal to 4a + 2b = 10

Mathematics

1 answer:

seropon [69]3 years ago

4 0

Answer:

2a +b =5

Step-by-step explanation:

4a + 2b = 10

Divide each side by 2

4a/2 +2b/2 = 10/2

2a +b =5

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1. Add or Subtract. Show your work

Sav [38]

QUESTION 1a.

We want to add

$( - 2 {x}^{2} - 4x + 13) + (12 {x}^{2} + 2x - 25)$

We group similar terms to get

$- 2 {x}^{2} + 12 {x}^{2}- 4x + 2x - 25 + 13$

Simplify:

$- 10{x}^{2} - 2x -12$

QUESTION 1b.

The given function is:

$(7x^2+4x-26)-(-7x^2-3x+15)$

Expand the parenthesis to obtain,

$7x^2+4x-26 + 7x^2 + 3x - 15$

Group similar terms,

$7x^2+7 {x}^{2} + 4x + 3x-26 - 15$

Simplify:

$14{x}^{2} + 7x-41$

QUESTION 2

The given function is

$f(n)=n^2-6n-16$

The zeros of this function is given by;

$n^2-6n-16 = 0$

Split the middle term.

$n^2-8n + 2n-16 = 0$

Factor;

$n(n - 8) + 2(n - 8) = 0$

$(n - 8)(n + 2) = 0$

$n - 8 = 0 \: or \: n + 2 = 0$

$n = 8 \: or \: n = - 2$

4 0

3 years ago

A line has the equation y = 3x + 16 what are the coordinates of the y intercept of the line?

bearhunter [10]

Answer:

(0, 16)

Step-by-step explanation:

y = 3x + 16

Plug x = 0

-> y = 3*0 + 16

-> y = 0 + 16

-> y = 16

-> y- intercept = (0, 16)

3 0

1 year ago

Read 2 more answers

Write the equation of a line in slope - intercept form using m=2 and (-1,5)

EastWind [94]

The slope-intercept form:

$y=mx+b$

m - slope

b - y-intercept

We have the slope $m=2\to y=2x+b$ .

Put the coordinates of the point (-1, 5) to the equation of the line:

$5=2(-1)+b$

$5=-2+b$ <em>add 2 to both sides</em>

$7=b\to b=7$

Answer: $y=2x+7$

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It is called a bonding kilyodhuifguegdhegufguygfgerugued

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3 years ago

A car travels at a speed of 25 miles per hour. the distance it travels in h hours given by the equation d(h)=25h.

Paha777 [63]

Is there a 62.5 miles option?

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3 years ago