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polet [3.4K]
3 years ago
9

The slope of the line passes through the points (6,r) and (13,5) is 2/7. What is the value of r?

Mathematics
1 answer:
inn [45]3 years ago
4 0
Slope=rise/run
another way to fid is
if you have points
(x1,y1) and (x2,y2)
slope is = (y2-y1)/(x2-x1)

we have points (6,r) an (13,5)

slope=2/7
2/7=(5-r)/(13-6)
2/7=(5-r)/(7)
multiply both sides by 7
2=5-r
minus 5
-3=-r
mult -1
3=r


r=3
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Solve this -7 3/5 + (-3 2/3)<br> A-10 1/2<br> B-11 4/15<br><br> C- 4 1/2<br> D-10 9/15
otez555 [7]

9514 1404 393

Answer:

  B  -11 4/15

Step-by-step explanation:

  -7 3/5 -3 2/3 = -(7 3/5 +3 2/3)

  = -((7 +3) +(3/5 +2/3)) = -(10 +9/15 +10/15)*

  = -(10 +19/15) = -(10 +1 4/15)

  = -11 4/15

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* you know at this point that the correct answer is B. The integer part cannot be 10, but must be 11.

8 0
3 years ago
If 0 is an angle in standard position and its terminal side passes through the point
liraira [26]

Answer:

\frac {  5\sqrt{21} }{ - 7}

Step-by-step explanation:

Firstly, let find some some other trig functions. We need to know all sides to know other trig functions. We know the horizontal side is -7 because it x-axis is at -7, it y-axis is at 24. so it vertical side is 24. Then we use the pythagorean theorem to find r

{7}^{2}  +  {24}^{2}  =  {r}^{2}

49+576=

{c}^{2}

525=c^2

\sqrt{525}  = 5 \sqrt{21}

So since we know that x= -7, y=24, r= 5 times sqr root of 21. We can find some trig functions. We can use function cosine here. Cosine equals

\frac{x}{r}

cos=

\frac{ - 7}{5 \sqrt{21} }

then we find secant which is the reciprocal of cos so we flip the numbers and that equals

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4 0
3 years ago
Which graph is correct?
stellarik [79]
First graph is the correct one !
8 0
3 years ago
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C) Consider the time 3:40pm where the initial side is the hour hand and terminal side is the
Stells [14]

Answer:

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Step-by-step explanation:

When the time is 3:40pm

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  • Terminal Side (Minute hand) is at 8.

(a)The angle between the two hands in standard position is drawn and attached below.

(b)Now, each hour = 30 degrees

Therefore, the angle between 3 and 8 in an anticlockwise movement

= 7 X 30 =210 degrees

Stating the angle as a negative angle, we have:

210^\circ-360^\circ=-150^\circ\\$The angle as a negative angle is -150^\circ

7 0
3 years ago
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iVinArrow [24]

Answer:

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Step-by-step explanation:

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