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alexandr402 [8]
2 years ago
9

Find the value of x: (6x + 7) ° 65° (y + 90°

Mathematics
1 answer:
Salsk061 [2.6K]2 years ago
7 0

Step-by-step explanation:

65 + (y + 9) = 180 ---------- Sum of angles on a

straight line

y + 65 + 9 = 180

y + 74 = 180

y = 180 - 74 = 106

6x + 7 = y + 9 ----------- Alternate angles

But y = 106,

6x + 7 = 106 + 9

6x = 115 - 7

x = 108/6 = 18

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algol13
A. Definition of Congruence
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3 years ago
Find values for θ that make each statement true (show steps)
Ksju [112]

Answer:

Step-by-step explanation:

1. sinФ = cos 25

25 ° is in the between 0 and 90°

therefore it can simply represent

cosФ= sin (90-Ф) = sin (90 - 25) = sin 65

2. sin(Ф/3 + 10) = cos Ф

cos Ф = sin (90 -Ф)

sin(Ф/3 + 10) = cos Ф

sin(Ф/3 + 10) = cos Ф = sin(90-Ф)

Ф/3+10=90-Ф

10Ф+3/30 = 90-Ф

10Ф+3 = 30(90-Ф)

10Ф+3 = 2700-30Ф

10Ф+30Ф=2700-3

40Ф = 2697

Ф = 2697 / 40 = 67.425 ≅ 67.4°

4 0
2 years ago
Pls help it due soon <br> Show workings!
mel-nik [20]

Answer:

A

Step-by-step explanation:

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3 0
2 years ago
Use the distributive property to expand the expression (8x + 3y) - (5z + 3)​
lord [1]

Answer:

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Step-by-step explanation:

8x+3y-5z-3

Just multiply the second parenthesis with the minus for your answer.

4 0
3 years ago
Read 2 more answers
a person on tour has 360 $ for his daily expense. if he extends his tour for 4 days,he has to cut down his daily expense by 3$.
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Answer:

360 for his expenses. Now if he extends his tour for 4 days then total days of the tour turns out to be x+4 days. Answer is 20 because -24 is not possible as days cannot be negative. So option (d) is the answer.

Step-by-step explanation:

Hope this helps

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4 0
3 years ago
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