Mathematics, 14.02.2020 03:45 pino2771
Match the circle equations in general form with their corresponding equations in standard form.
x2 + y2 β 4x + 12y β 20 = 0
(x β 6)2 + (y β 4)2 = 56
x2 + y2 + 6x β 8y β 10 = 0
(x β 2)2 + (y + 6)2 = 60
3x2 + 3y2 + 12x + 18y β 15 = 0
(x + 2)2 + (y + 3)2 = 18
5x2 + 5y2 β 10x + 20y β 30 = 0
(x + 1)2 + (y β 6)2 = 46
2x2 + 2y2 β 24x β 16y β 8 = 0
x2 + y2 + 2x β 12y β 9 = 0
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Answers: 1
Mathematics, 21.06.2019 19:40
Neoli is a nurse who works each day from 8: 00 am to 4: 00 pm at the blood collection centre. she takes 45 minutes for her lunch break. on average, it takes neoli 15 minutes to collect each sample and record the patient's details. on average, how many patients can neoli see each day?
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Mathematics, 21.06.2019 23:30
Given: adΒ―Β―Β―Β―Β― is an altitude. prove: ab2+ac2=cb2 right triangle a b c with right angle a. point d lies on side b c and segment a d is drawn. angle a d c is a right angle. drag and drop a reason into each box to correctly complete the two-column proof. statement reason adΒ―Β―Β―Β―Β― is an altitude, and β bac is a right angle. given β adb and β adc are right angles. definition of altitude β bacβ
β bda ? β bacβ
β adc ? β bβ
β b ? β cβ
β c reflexive property of congruence β³abcβΌβ³dba ? β³abcβΌβ³dac aa similarity postulate abbd=cbab ? ab2=(cb)(bd) cross multiply and simplify. acdc=cbac polygon similarity postulate ac2=(cb)(dc) cross multiply and simplify. ab2+ac2=ab2+(cb)(dc) addition property of equality ab2+ac2=(cb)(bd)+(cb)(dc) substitution property of equality ab2+ac2=(cb)(bd+dc) ? bd+dc=cb segment addition postulate ab2+ac2=cb2 substitution property of equality
Answers: 1
Mathematics, 22.06.2019 03:30
The length of a rectangular board is 3 feet less than twice its width. a second rectangular board is such that each of its dimensions is the reciprocal of the corresponding dimensions of the first rectangular board. if the perimeter of the second board is one-fifth the perimeter of the first, what is the perimeter of the first rectangular board?
Answers: 1
Match the circle equations in general form with their corresponding equations in standard form.
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