3(16 + (─40) + 4) and (─10 + 18) × (─1) with work!!
2 answers:
Hello,
According to given equations:-
Note- When + and - signs are in one bracket, subtract greater from smaller, and put - sign in answer if greater number is negative or else, put + sign in answer when greater number is positive.
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Answered by Benjemin ☺️
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Answer:
Step-by-step explanation:
A family has four children. If the genders of these children are listed in the order they are born, there are sixteen possible outcomes: BBBB, BBBG, BBGB, BGBB, GBBB, BGBG, GBGB, BGGB, GBBG, BBGG, GGBB, BGGG, GBGG, GGBG, GGGB, and GGGG.
Let X represent the number of children that are girls. Then
1. When X=0, there is one possible outcome BBBB. So
2. When X=1, then there are 4 possible outcomes GBBB, BGBB, BBGB, BBBG, so
3. When X=2, then there are 6 possible outcomes BGBG, GBGB, BGGB, GBBG, BBGG, GGBB, so
4. When X=3, then there are 4 possible outcomes GGGB, GGBG, GBGG, BGGG, so
5. When X=4, then there is one possible outcome GGGG, so
Now, the probability distribution table is
Answer:
a) e(0,2)
b) 1
c) read below
d) read below
Step-by-step explanation:
Midpoint:
to calculate the midpoint e of a segment
e((x1+x2)/2, (y1+y2)/2)
so (-1+1)/2 and (3+1)/2
e(0,2)
Slope formula:
the slope of a straight line between two points is
so between e and B it's equal to (4-2)/(2-0) = 1
Condition for perpendicularity : slope(AC) = -1/slope(eB) = -1
so we calculate the slope of a straight line through A and C
(1-3)/1-(-1) = -2/2 = -1 so they are perpendicular
Area:
eB is the height of the triangle as it's perpendicular to the base, so applying the standard formula Area = (AC*eB)/2 we can find the area