Jacinta has 2 blue marbles , 4 red marbles and 5 green marbles in a bag, all the marbles are the same size, she will select one marbles from the marble from the bag without looking what is the possibility that Jacinta will choose the green marble

7 0

3 years ago

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A circle has a diameter with endpoints at -2 + i and -6 -11i. What is the center of the circle?

pashok25 [27]

Answer:

- 4 - 5i

Step-by-step explanation:

The centre of the circle is the average of the endpoints

centre = (- 2 + i - 6 - 11i ) ÷ 2

= (- 8 - 10i ) ÷ 2

= - 4 - 5i

7 0

2 years ago

Find the first, fourth, and tenth terms of the arithmetic sequence described by the given rule.

nlexa [21]

$\bf \stackrel{A(n)=1+(n-1)(-5.7)}{ \begin{array}{ll} n\qquad \qquad &A(n)\\ \cline{1-2} 1&1+(1-1)(-5.7)\\ &1+0\\ &1\\\\ 4&1+(4-1)(-5.7)\\ &1+(3)(-5.7)\\ &1-17.1\\ &-16.1\\\\ 10&1+(10-1)(-5.7)\\ &1+(9)(-5.7)\\ &1-51.3\\ &-50.3 \end{array} }$

6 0

3 years ago

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The set of cards shown contains both red and black cards. How many cards must be red so the probability of drawing a red card at

allsm [11]

Answer:

H, 4 cards

Step-by-step explanation:

There are ten cards in the deck so you convert the fraction into tenths.

2/5 = 4/10 therefor its 4 cards

6 0

3 years ago