MATHEMATICS HIGH SCHOOL

We did not recieve a diagram for this question.Radius of circle O has a slope of 2.5. What is the slope of the line tangent to circle O at point A?

A)0.8
B)2.5
C)-0.4
D)-5

Answers

Answer 1
Answer: If the line is tangent to circle at point A and the radius ( suppose AO) has a slope of 2.5 then a slope of the tangent line is :
(-1)/(2.5)= -0.4
Explanation: The product of slopes of two perpendicular lines is -1. To get second slope we have to divide -1 by the first one.
Answer:C) - 0.4

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What is the solution set of {x | x < -3} ∪ {x | x > 5}

Answers

The union of two sets is defined as all elements that are members of both sets.

The first set evaluuates to (...,...,...-7,-6,-5,-4) and the second eveluates to (6,7,8,9,...,...).

There are no elements that belong to both sets so the solution is the empty set. {∅}

Another way is to think about it in words: "What number(s) are less than -3 and also greater than 5?" There are no numbers that fit both of these.

Your teacher puts numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12 in a hat and asks you to draw a number. what's the probability that you will draw either a 4 or a 6?

Answers

Total number of numbers = 12

Total number of 4  or 6 = 2

P( 4 or 6) = 2/12 = 1/6

Answer: 1/6

Answer:

1/6

Step-by-step explanation:

Total number of numbers = 12


Total number of 4  or 6 = 2


P( 4 or 6) = 2/12 = 1/6


Answer: 1/6

in a circle graph, what is the measure of the central angle of a sector that represents 24% of the whole?

Answers

0.24*360=86.4 degrees
24/100 =x/360

100x=8640
x=86.4

Y-2x=14
Solve the literal equation for y

Answers

Answer:

y =2x+14

Step-by-step explanation:

y - 2x= 14

Add 2x to each side

y -2x+2x = 2x+14

y =2x+14

If m< 1 =115 , find m<3

Answers