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3 years ago

If y varies directly with x and y = 6 and x = -3, find y when x = 4.

Mathematics

2 answers:

Ber [7]3 years ago

8 0

Ask questions in the comment section if you have questions. I'm happy to help! <3

Step-by-step explanation:

What the question is telling you is that x and y and proportional, almost like a ratio.

Now we have to find y when x is four.

Let's create a proportional equation...

What can we divide by four to create -1/2?

Citrus2011 [14]3 years ago

6 0

Answer:

y = -8

Step-by-step explanation:

6/-3 = -2

4 * -2 = -8

y = -8

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Write an equivalent expression for 4(3a+7)+3 (2a+5) if a=5, is the the solution to both expressions the same

artcher [175]

No because thefirst one is equal to 91 and the other is equal to 15

3 0

3 years ago

write an equation in slope intercept form for the line that is perpendicular to y=-1/4x+2 and passes through the points (-4,3)

PilotLPTM [1.2K]

For lines to be perpendicular their slopes must be negative reciprocals of one another, mathematically:

m1*m2=-1, and in this case:

-m/4=-1

-m=-4

m=4, so the slope of the perpendicular line is 4 so we have thus far:

y=4x+b, using point (-4,3) we can solve for the y-intercept, "b"

3=4(-4)+b

3=-16+b

19=b, so our line is:

y=4x+19

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3 years ago

Factor Quadratics

icang [17]

Answer:

Step-by-step explanation:

x^2 + 17x + 60

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2 years ago

What is the inverse to 2^x-1

nydimaria [60]

Replace x with y and solve for y~

y=2*

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Hope this helps and leave a brainliest to help me reach expert ;)

4 0

3 years ago

In circle A below, chord BC and diameter DAE intersect at F. If arc CD = 46° and arc BE = 78°, what is m_BFE? D B А

wel

Given:

Consider the below figure attached with this question.

In circle A below, chord BC and diameter DAE intersect at F.

The arc CD = 46° and arc BE = 78°.

To find:

The measure of angle BFE.

Solution:

According to intersecting chords theorem, if two chords intersect inside the circle then the angle on the intersection is the average of intercepted arcs.

Using intersecting chords theorem, we get

$m\angle BFE=\dfrac{1}{2}(m(arcCD)+m(arcBE))$

$m\angle BFE=\dfrac{1}{2}(46^\circ+78^\circ)$

$m\angle BFE=\dfrac{1}{2}(124^\circ)$

$m\angle BFE=62^\circ$

Therefore, the measure of angle BFE is 62°.

6 0

3 years ago