Answer:
Number of boys in the class is (2/2+3)*25=(2/5)*25=10
Step-by-step explanation:
Answer:
9: 1/36 chance of getting the same number on both dice
10: a) 5 b) 4/25
Explanation:
9: a die has 6 sides with each number. So the chance of getting a number on a dice once is 1/6. The second dice is the same with 1/6 chance. But to have them both be the same number means you have to multiply the probability. (1/6)/(1/6)=1/36
10:
a) 1/4 of the discs are blue, meaning you have multiply 1/4 by 20 which equals 5
b) the probability of getting a red is 12/20. So the probability of not getting red is 8/20. But both simultaneously, would mean for multiplying them. 8/20 •8/20=64/400 Then simplified to 4/50.
*im not super sure about 10 b. Sorry :/
Square: a number times itself, feet: unit of measurement, a square foot is often used following the area of a shape.
Answer:
x = 60°
Step-by-step explanation:
According to the Outside Angles Theorem, the angle formed by the two tangents in the diagram above is equal to half of the difference of the measures of two arcs that are intercepted.
Therefore:
x = 60°
we know that
<u>Applying the Pythagorean Theorem</u>
solve for HJ
in this problem we have
Substitute the values in the formula above
therefore
<u>the answer is the option</u>
B. 5 sq. root 3 units