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Maurinko [17]
3 years ago
9

Which equation shows the point-slope form of the line that passes through (4, 1/3) and has a slope of 3/4?

Mathematics
1 answer:
Digiron [165]3 years ago
3 0
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Given: tangent A = negative StartRoot 15 EndRoot What is the value of Tangent (A minus StartFraction pi over 4 EndFraction)?
marshall27 [118]

Answer:

( √15 + 8)/7

Step-by-step explanation:

TanA = -√15

.we are to find tan(A-π/4).

In trigonometry

Tan(A-B) = TanA - TanB/1+ tanAtanB

Hence:

tan(A-π/4) = TanA - Tanπ/4/1+ tanAtanπ/4

Substitute tan A value into the formula

tan(A-π/4) = -√15-tanπ/4 / 1+(-√15)(tanπ/4

tan(A-π/4) = -√15-1/1-√15

Rationalize

-√15-1/1-√15 × 1+√15/1+√15

= -√15-√225-1-√15/(1-√225)

= -2√15-15-1/1-15

= -2√15 -16/(-14)

= -2(√15+8)/-14

= √15 + 8/7

Hence the required value is ( √15 + 8)/7

4 0
3 years ago
Read 2 more answers
(15)Simplify the expression below. Show your work -(-7y+12)
kotykmax [81]
15. -(-7y + 12) = 7y - 12

16. 1/a = 16/18
      cross multiply
      16a = 18
      a = 18/16 = 9/8

17. 8x - 12 = 4x + 24
      8x - 4x = 24 + 12
      4x = 36
      x = 36/4
      x = 9

18. -6b > 42           4b > -4
       b < 42/-6          b > -4/4
       b < - 7              b > -1
so b < -7 and b > -1

19. 6 more then the product of 8 and n
      6 + 8n

20. 45 = 3b + 69
      45 - 69 = 3b
      -24 = 3b
      -24/3 = b
      -8 = b
6 0
3 years ago
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Help me please can anyone figure this out this is due soon also make sure there an explanation.
Anvisha [2.4K]

Answer:

Watch a photo!

3 0
3 years ago
HELP ME PLEASE!!GEOMETRY AND REFLECTIONS!!! Explain if possible please !!
bogdanovich [222]
The answer to the box is 2
..the deal with the reflection is that you reflect the image according to the mirror line given as you can see the image has been reflected to x x =3and x =7

5 0
3 years ago
At a concert, the number of security guards needed is based on the average density of people in an area of 25'x25' called a bloc
ira [324]

find total area  by multiplying  350' x 200' = 70,00 sq ft

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divide area for one security guard into total area of facility  70,000 / 625 =

112 security guards

find how many people for each block = 70,000 / 625 = 112 blocks

12,000 people divided by 112 blocks = 12,000 / 112 = 107.14 rounded to nearest 10 = 110 people per block

3 0
3 years ago
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