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Darya [45]
3 years ago
14

I need help on these problems THANK YOUUU

Mathematics
2 answers:
Rudiy273 years ago
8 0

Answer:

2. m = 1

3. y - (-1) = 5 (x - 4)

4. y = 5x - 21

Step-by-step explanation:

<u>Work for #2</u>

m (slope) = \frac{y2 - y1}{x2 - x1} \fracyx}

m = \frac{-1 - 2}{-2 -1}

m = \frac{-3}{-3}

m = 1

<u>Work for #3</u>

y = -1/5x + 3 and through (4, -1)

The slope of a perperndicular line is the negative reciprocal. So, it is 5.

Plug this number into point-slope form. Use the points you were given (4,-1) in the equation as well.

y - y1 = m (x - x1)

y - (-1) = 5 (x - 4)

y + 1 = 5x - 20 (Only if you are supposed to simplify it)

<u>Work for #4</u>

Finish solving the equation

y - (-1) = 5 (x - 4)

y + 1 = 5x - 20

y = 5x - 20 - 1

y = 5x - 21

pychu [463]3 years ago
5 0

Answer:

1 is (2.-2) but i cant see the rest

Step-by-step explanation:

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mr_godi [17]
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8 0
3 years ago
Find the value of n<br><br> 3n-10<br> n=
Mars2501 [29]

10-3=N

N=7

Step-by-step explanation:

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8 0
3 years ago
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PLEASE HELP ASAP THE DETAILS ARE BELOW.What is the value of x?
Aloiza [94]

Answer:

x = 30°.

Step-by-step explanation:

The dashes on the three lines indicate that the three lines are of equal lengths. The smaller triangle made out of the three lines (the one with two vertices on the circumference of the circle and one at the center of the circle) is an isosceles triangle. All three of the triangle's interior angles are 60° since it is isosceles.

The line (the one with arrows on its ends) touches the circle at only one point. That line is a tangent to the circle. That line is perpendicular to the segment that connects the center of the circle to the point of tangency. The angle between the two will be 90°.

The largest triangle includes three angles:

  • The angle with the center of the circle as its vertice: 60°;
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What is the value of x?

The three interior angles of a triangle add up to 180°. As a result,

60° + 90° + x° = 180°

x = 180 - 90 - 60 = 30.

6 0
3 years ago
Cotθ= tan30° find theta
scoundrel [369]

Answer:

60

Step-by-step explanation:

Cot is the same as 1/tan so:

1/tan(theta) = tan(30)

By rearranging the equation, we get:

1/tan(30) = tan(theta)

By taking the inverse tan, we get:

theta = tan^-1 (1/tan(30)) =60

7 0
2 years ago
A certain kind of bacteria growing on your kitchen counter doubles every 30 mins.. Assuming that you start with only one bacteri
natali 33 [55]
What you can do is start with the key details in it... the main ones are that the bacteria grows every 30 minutes, you start with 1 bacteria, and the end time is 180 minutes. Basically you know that 3 goes into 18 6 times so 30 goes into 180 6 times which means that if you started with 1 bacteria you will end up with 7. Understand?
4 0
3 years ago
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