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bearhunter [10]
3 years ago
10

When you flip a baised coin the probability of getting tail is 0.75 How many times would you expect to get tails uf you flip the

coin 320 times?
Mathematics
2 answers:
Elis [28]3 years ago
7 0

Answer: 60

How?: Well, we know that we have a 0.75 chance for tails. And on a coin, there is heads and tails. So, we multiply 0.75 (tails) by 320 and then divide that by 4. We do this because there is a 0.75 and 1 = 1.00. 1.00 - 0.75 = 0.25. 0.25 = 60

Ierofanga [76]3 years ago
3 0

Answer:240

Step-by-step explanation:

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Find the angle of XYZ give your answer to 1 decimal place
miskamm [114]

Answer:

66.4°

Step-by-step explanation:

To find the angle XYZ, we are to use sine rule. For this, we have to first find ∠Z.

Given that: ∠X = 90° (right angle), XY = 6 cm, YZ = 15 cm. Hence:

\frac{sin(Z)}{XY}=\frac{sin(X)}{YZ}\\\\Substituting:\\\\\frac{sin(Z)}{6} =\frac{sin(90)}{15}   \\\\sin(Z)=\frac{sin(90)*6}{15}\\\\sin(Z)=0.4\\\\Z=sin^{-1}(0.4)\\\\Z=23.6^o

∠X + ∠Y + ∠Z = 180° (sum of angles in a triangle)

90 + ∠Y + 23.6 = 180

113.6 + ∠Y = 180

∠Y = 180 - 113.6

∠Y = 66.4°

∠Y = ∠XYZ = 66.4°

3 0
3 years ago
Enter the decimal equivalent of 6/8​
ikadub [295]

Answer:

.75

Step-by-step explanation:

6/8 can be simplified to 3/4, if that helps.

3 0
3 years ago
a scalene triangle has an area of 20.335 square centimeters. the height of the triangle is 8.3 centimeters. what is the length o
UNO [17]
Area of triangle = (1/2)*base*height

20.335 = (1/2)*base*8.3

2*20.335 = base*8.3

(2*20.335) / 8.3 = base          Use your calculator.

4.9 = base

base = 4.9cm 
5 0
3 years ago
Solve for x: one over five (5x + 12) = 18 (5 points)
atroni [7]

Step-by-step explanation:

(1x+12/5)=18

X=18-12/5

X=15..6

3 0
3 years ago
Read 2 more answers
Jared said that every prime number is an integer. Do you agree or disagree
Nookie1986 [14]
I "agree." This statement is correct every <span>prime number is an integer. Integers are </span><span>a whole number and a number that is not a fraction. Prime numbers cant be fractions therefore every prime number is in fact a integer.

Hope this helps!
</span>
7 0
3 years ago
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