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AVprozaik [17]
3 years ago
15

If a system of linear equations has no solution, what do you know about the slopes and y-intercepts of the graphs of the equatio

ns?
A
The slopes of the graphs are the same and the y-intercepts of the graphs are the same.

B. The slopes of the graphs are the same and the y-intercepts of the graphs are different

C. The slopes of the graphs are different and the y-intercepts of the graphs are the same.

D. The slopes of the graphs are different and the y-intercepts of the graphs are different.​
Mathematics
1 answer:
Nata [24]3 years ago
7 0

Answer:

B. The slopes of the graphs are the same and the y-intercepts of the graphs are different

Step-by-step explanation:

The lines will also be parallel

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Determine the average speed of the monorail, in miles per hour, over each segment of the route. Round each speed to the nearest
Kryger [21]

Answer:

show everything

Step-by-step explanation:

copy and paste all of all of the problem

7 0
3 years ago
PLEASE HELP ME.<br> THANKS!!!
Veronika [31]

Cos(x) = sin(x + 20o) Use the double cos angle formula

Cos(x) = sin(x)*cos(20) + cos(x)*sin(20) Divide through by cos(x). Tanx = sin(x)/cos(x)

1 = tan(x)*cos(20) + sin(20) Subtract sin(20) from both sides.

1 - sin(20) = tan(x)*cos(20) Calculate the value of 1 - sin(20)

0.65798 = tan(x) * 0.939692 Divide by cos(20)

tan(x) = 0.65795/0.939692

tan(x) = 0.70021 Take the inverse of 0.7) = tan(x)

x = tan-1(0.70021)

x = 35 degrees as expected.

Problem Two

The easiest way to do this is to pick random values and try it. The two acute angles are complementary. So 25 and 65 are random enough.

Let A = 25

Let C = 65

A

Tan(25) = sin(25)/sin(65) ; tan(25) = 0.4663.

sin(25)/sin(65) = 0.4663 Answer

B

Sin(90 - C) = Sin(A)

Tan(90 - A) = Tan(C)

So the question becomes Cos(A) = Tan(C) / sin(A)

Cos(25) = Tan(65)/Sin(25)

0.906 = ? 5.07 This statement isn't true.

C

Sin(65) = Cos(25)/Tan(65)

.906 = 0.4226 C is not the correct answer.

D

D isn't true. The tan does not relate that away. You can find it for yourself.

Cos(A) = Tan(C) You should get 0.906 = 2.14

E

Sin(C) = Cos(A) / Tan(A) I'll leave you to show this is wrong.

Problem 3

The diagram below is for this problem. Cos(x) = 50/100 = 0.5

x = cos-1(0.5)

x = 60 degrees.

Part 2

Sin(60) = opposite / hypotenuse

opposite = sin(60) * hypotenuse

opposite = 86.61 Be sure and round this to whatever the question says to round it to.



4 0
3 years ago
Please help me it is easy,
Basile [38]

Answer:

i think id say it is 10.5 i might be wrong though

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
IF AMIT GOT 22 /40 IN HINDI WHAT IS HIS MARK IN 100 PLSSSSSSSS SAY !!!
tatiyna

Step-by-step explanation:

22/40 = 11/20 = (11 * 5)/(20 * 5) = 55/100.

4 0
3 years ago
19mm equivalent to how many cm​
saul85 [17]

Answer:

19mm is 1.9cm

Step-by-step explanation:

I looked it up on a converter.

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3 years ago
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