(BRAINLIEST TO THE PERSON WHO HELPS ME WITH THESE THREE QUESTIONS)

Mathematics

1 answer:

tigry1 [53]3 years ago

7 0

Answer:

Cheryl's posts + 7 posts =Kevin Posts

K-C=7 or C+7+K I use them because C is Cheryl and K is Kevin

Operation=subtraction or addition because it could be K-C=7 or C+7+K

Cheryl wrote K-7=C posts

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The sum of two numbers is 30.the first number is 1/5 of the second number. what are the numbers?

sattari [20]

The numbers are 25 and 5.

Method:

5x + x = 30

6x = 30

x = 30/6

x = 5

Second number = 30 - 5 = 25

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4 years ago

Which of these graphs represents the graph of line y = -x + 1?

jok3333 [9.3K]

Answer:

See attached picture.

Step-by-step explanation:

To graph the equation, use the slope intercept form of the line to identify the slope and y-intercept.

y = -x + 1 y = mx+b

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This means start at 1 on the y-axis and plot a point. From this point (0,1), move down 1 unit and to the right 1 unit. Plot this point (0,1). Connect the two points.

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4 years ago

HELPPP <br> Verify that csc theta cos theta tan theta=1

ZanzabumX [31]

Answer:

See Explanation

Step-by-step explanation:

$\csc \theta \: \cos \theta \: \tan \theta = 1 \\ \\ LHS = \csc \theta \: \cos \theta \: \tan \theta \: \\ \\ = \frac{1}{ \sin \theta} \: \times \cancel{ \cos \theta }\: \times \frac{ \sin \theta}{ \cancel{ \cos \theta }} \\ \\ = \frac{1}{ \cancel{ \sin \theta}} \: \times \cancel{ \sin \theta} \\ \\ = 1 \\ \\ = RHS \\ \\ hence \: proved$