At Venn diagram there are 4 parts (20 pieces):
1. Colored only in blue - quadrilaterals with four equal side lengths (3 pieces);
2. Colored only in orange - quadrilaterals with four right angles (6 pieces);
3. Colored in both blue and orange - quadrilaterals with four right angles and with four equal side lengths (2 pieces);
4. Colored in white - quadrilaterals withoutprevious two properties (9 pieces).
Consider events:
A - a randomly chosen quadrilateral has four right angles;
B - a randomly chosen quadrilateral has four equal side lengths;
Use formula to find the probability that a randomly selected quadrilateral with 4 right angles also has four equal side lengths:
Answer: Pr=0.25
27,600
i did my math i hope it helps good luck
Answer:
60
Step-by-step explanation:
Divide the number of questions answered correctly by his percentage
51 / 85 = 0.6
Now multiply that answer by 100 to see how many questions are on the quiz
0.6 x 100 = 60
Check your work by dividing that number by the number he answered correctly
51 / 60 = 0.85
Median is defined as the middle term when the scores are arranged in increasing/decreasing order.
Joaquin's scores: 58, 62, 72, 75, 85, 91 Median: 73.5
Trisha's scores: 55, 74, 76, 90, 91, 92 Median: 83
The answer is letter A.
Answer:
x = -3
Step-by-step explanation:
2x - 3y = -12 ------------------(i)
4x + y = -10 -------------------(ii)
Multiply the (ii) equation by 3 and then add the two equations. So, now y will be eliminated and you will get the value of x
(i) 2x - 3y = -12
(ii) * 3 <u>12x + 3y = -30</u>
14x = - 42
x = -42/14
x = -3