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2 years ago

8

Find x when y = 18, if y= 5 when x =4

2 answers:

Svetlanka [38]2 years ago

7 0

For example.,
Lets say
y
=
x
+
1
is equation 1.
So here, when
x
=
4
,
y
=
5
.
Also,
y
=
1.25
x
, is equation 2
Here also, when
x
=
4
,
y
= 5 ,
But these equations give different results when
y
= 18
For equation 1,
18
=
x
+
1

So,
x
=
17
For equation 2,
18
=
1.25
x
18
1.25
=
x
So,
x
=
14.4

Harman [31]2 years ago

6 0

Answer:

x=14.4

Step-by-step explanation:

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miss Akunina [59]

Answer:

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It uses triangle congruence test - here we use - SAS, as

one side is equal as it is given

both the angles are 90 degree

and they share a same side

so -

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3 0

3 years ago

What is the equation of a line that passes through (4, 7) and has a slope of −14?

deff fn [24]

Slope = -1/4
(4, 7)

y - 7 = -1/4 (x - 4)
y - 7 = -1/4x + 1
y = -1/4 + 8

answer is C

5 0

3 years ago

The perimeter of a square with sides measuring 5 inches is _______ inches

Rzqust [24]

Each side is 1.25inches I don't know if this answers your question but i hope it helps

4 0

3 years ago

(1.)Find the slope of the line that passes through the given pair of points. (If an answer is undefined, enter UNDEFINED.) (?a +

jekas [21]

Answer:

1. The slope of the line is $m=\frac{-2b+3}{2a}$ .

2. The value of a is 18.

Step-by-step explanation:

If a line passes through two points, then the slope of the line is

$m=\frac{y_2-y_1}{x_2-x_1}$

(1)

It is given that the line passes through the points (-a + 3, b - 3) and (a + 3, -b). So, the slope of the line is

$m=\frac{-b-(b-3)}{a+3-(-a+3)}$

$m=\frac{-b-b+3}{a+3+a-3)}$

$m=\frac{-2b+3}{2a}$

The slope of the line is $m=\frac{-2b+3}{2a}$ .

(2)

If the line passing through the points (a, 1) and (6, 5), then the slope of the line is

$m_1=\frac{5-1}{6-a}=\frac{4}{6-a}$

If the line passing through the points (2, 7) and (a + 2, 1), then the slope of the line is

$m_2=\frac{1-7}{a+2-2}=\frac{-6}{a}$

The slopes of two parallel lines are same.

$m_1=m_2$

$\frac{4}{6-a}=\frac{-6}{a}$

On cross multiplication we get

$4a=-6(6-a)$

$4a=-36+6a$

$4a-6a=-36$

$-2a=-36$

Divide both sides by -2.

$a=18$

Therefore the value of a is 18.

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3 years ago

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zhuklara [117]

Answer:

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Step-by-step explanation:

.

4 0

3 years ago