QUESTION 4
In the diagram, the circle with centre M and equation x + y + 4x - 4y-12-0 is
drawn...
Mathematics, 21.05.2021 09:10 Jayla1029
QUESTION 4
In the diagram, the circle with centre M and equation x + y + 4x - 4y-12-0 is
drawn. C is the t-intercept of the circle. The tangent AB touches the circle at A(-6:4)
and cuts the x-asis at B
A(-6:4
M
B
4.1
Calculate the
4.1.1
coordinates of M.
4.1.2 coordinates of C.
4.2 Determine, giving reasons, the equation of the tangent AB in the form y = mx + c
if it is given that the gradient of MC is --
4.3
Calculate the area of AABC.
(5
4.4
Determine for which values of k the line y = 2x +k will intersect the circle attivo
points.
E
(coordinates of M
Answers: 2
Mathematics, 21.06.2019 19:00, karellopez96
List the sides of δrst in ascending order (shortest to longest) if: m∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12
Answers: 1
Mathematics, 21.06.2019 21:30, gonzalezashley152
In a test for esp (extrasensory perception), the experimenter looks at cards that are hidden from the subject. each card contains either a star, a circle, a wave, a cross or a square.(five shapes) as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. when the esp study described above discovers a subject whose performance appears to be better than guessing, the study continues at greater length. the experimenter looks at many cards bearing one of five shapes (star, square, circle, wave, and cross) in an order determined by random numbers. the subject cannot see the experimenter as he looks at each card in turn, in order to avoid any possible nonverbal clues. the answers of a subject who does not have esp should be independent observations, each with probability 1/5 of success. we record 1000 attempts. which of the following assumptions must be met in order to solve this problem? it's reasonable to assume normality 0.8(1000), 0.2(1000)%30 approximately normal 0.8(1000), 0.2(1000)% 10 approximately normal srs it is reasonable to assume the total number of cards is over 10,000 it is reasonable to assume the total number of cards is over 1000
Answers: 1
English, 09.10.2019 03:00