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3 years ago

8

A linear function r models the growth of your right index fingernail. The length of the fingernail increases 0.7 millimeters eve

ry week . Graph r when r (0)=12. Identify the slope and interpret the y- intercept.

1 answer:

sweet [91]3 years ago

3 0

The starting length of the finger nails is 12mm.

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Right and solve an equation to find the number n.four times a difference of a number and seven is 12

amm1812

For this case we must propose an algebraic expression associated with:

"four times a difference of a number and seven is 12"

So we have to:

Four times a difference of a number and seven is represented as: $4 (n-7)$

So we have the expression is:

$4 (n-7) = 12$

We apply distributive property to the terms within parentheses:

$4n-28 = 12$

We add 28 to both sides:

$4n = 12 + 28\\4n = 40$

We divide between 4 on both sides:

$n = \frac {40} {4}\\n = 10$

Answer:

$n=10$

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4 years ago

1) solve for w: 3w - 10 = 4w + 5<br> 2) solve for t:6 -2t >18

Gre4nikov [31]

Problem # 1
3w-10=4w+5
(3w-10) + (10-4w) = (4w+5) + (10-4w)
(3w-10) + (-4w+10) = (4w+5) + (-4w +10)
3w-10-4w+10 = 4w +5 -4w +10
3w-4w=15
-w=15
w= -15 (w is negative 15)

problem #2.
6-2t > 18
6-2t-6 > 18-6
-2t > 12
(-1) (-2t) > 12 (-1)
2t > -12
next divide by 2
2t/2 > -12/2
t > -6 (t is greater then negative 6)

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4 years ago

A line has a slope of 0.5<br> and passes through the point (0,5). What is the equation of the line?

EleoNora [17]

Step-by-step explanation:

Hi there!

From the question;

The slope of the line is 5/10 or 0.5.

Also the equation of the line passes through the point (0,5).

Note: Use one point formula. {i.e (y-y1)=m(x-x1)}

So, use the formula here and keep the values;

(y-5) = 5/10(x-0)

or, 10(y-5) = 5x

or, 10y-50 = 5x

or, 5x - 10y +50 = 0

Therefore, the required equation is 5x - 10y +50 = 0 or x-2y+10 = 0.

Hope it helps!

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2 years ago

100 points if correct In this task, you will play the role of a restaurant owner. You will collect data and analyze different as

jek_recluse [69]

Answer:

Step-by-step explanation:

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3 years ago

Every negative integer J is less than or equal to its inverse

Dahasolnce [82]

Answer:

Here we have the statement:

" Every negative integer J is less than or equal to its inverse"

First, remember that when we are talking about negative numbers, the ones that are closer to 0 are the larger ones.

For example, if we have -1 and -5

-1 is closer to zero, then:

-1 > -5

Now we have a negative integer J.

The smallest negative integer is -1

it's inverse is 1/-1 = -1

Then, if j = -1:

j = 1/j

-1 = 1/-1 = -1

and if j < -1 (-2, -3, -4, -5.......)

then for example, for j = -2

1/-2 = - (1/2)

and (-1/2) is a number between -1 and 0

So it is closer to zero than -2

then:

(-1/2) > -2.

Then, concludin, if IjI > 1, we have always that 0 > 1/j > -1 > j.

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4 years ago