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3 years ago

BRAINLIEST PLEASE HELP :Can someone please write the words out for me so i can cop&past

Mathematics

1 answer:

Kisachek [45]3 years ago

6 0

You didn’t include any picture or write a question what are we suppose to answer ?:,)

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What is the equation of the line that passes through (-3, -1) and has a slope of 2/5? Put your answer in slope-intercept form.

Zanzabum

Hi there!

The general formula of A line in slope-intercept form is the following:
$y = mx + n$

In this formula m represents the slope of the line. Therefore, we can conclude that m = 2/5.
$y = \frac{2}{5} x + n$

We also know that the line passes through the point (-3, -1) and we can therefore substitute this coordinate into the formula of the line.
x = -3 and y = -1

$- 1 = \frac{2}{5} \times - 3 + n$

Multiply first.
$- 1 = - 1\frac{1}{5} + n$

And finally add 1 1/5 to both sides of the equation.
$\frac{1}{5} = n$

We can now switch sides.
$n = \frac{1}{5}$

Now we've found our value of n, which we can substitute into the formula of our line. Hence, in slope-intercept form, we find the following:
$y = \frac{2}{5} x + \frac{1}{5}$

7 0

3 years ago

Find the length of line segment UV.

pshichka [43]

Answer:

The length of the line segment UV is 76 units

Step-by-step explanation:

In a triangle, the line segment joining the mid-points of two sides is parallel to the third side and equal to half its length

In Δ ONT

∵ U is the mid-point of ON

∵ V is the mid-point of TN

→ That means UV is joining the mid-points of two sides

∴ UV // OT

∴ UV = $\frac{1}{2}$ OT

∵ UV = 7x - 8

∵ OT = 12x + 8

∴ 7x - 8 = $\frac{1}{2}$ (12x + 8)

→ Multiply the bracket by $\frac{1}{2}$

∵ $\frac{1}{2}$ (12x + 8) = $\frac{1}{2}$ (12x) + $\frac{1}{2}$ (8) = 6x + 4

∴ 7x - 8 = 6x + 4

→ Add 8 to both sides

∴ 7x - 8 + 8 = 6x + 4 + 8

∴ 7x = 6x + 12

→ Subtract 6x from both sides

∴ 7x - 6x = 6x - 6x + 12

∴ x = 12

→ Substitute the value of x in the expression of UV to find it

∵ UV = 7(12) - 8 = 84 - 8

∴ UV = 76

∴ The length of the line segment UV is 76 units

8 0

2 years ago

On a track for remote controlled racing cars racing car A completes the track in 28 seconds while racing car B completes it in 2

ankoles [38]

We'll take out LCM of 24 seconds and 28 seconds.
that is, 168 seconds.

That means,
Car A and Car B will be side by side to each other after 2 mins 48 seconds after start.

5 0

3 years ago

Read 2 more answers

Evaluate -32 + (2-6)(10).

Sergio039 [100]

Answer:

-72

Step-by-step explanation:

-32 + (2-6)(10).

PEMDAS

parentheses first

-32 + -4*10

Then multiply

-32 -40

Then subtract

-72

7 0

2 years ago

Read 2 more answers

5000 ones = how many hundreds?

kenny6666 [7]

<span>Five Thousand ones equals Fifty hundred ones; this can be understood by moving the numerical comma on place 5,000 becomes 50,00; to change the notation you can also divide 5,000 by 100 which equals 50. Therefore it equals 50 hundred ones. By simple division you can arrive at the answer for this.</span>

5 0

2 years ago