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Yakvenalex [24]
3 years ago
6

If you flip a coin 3 times what is the probability of getting at least 2 tails

Mathematics
2 answers:
Softa [21]3 years ago
5 0

|\Omega|=2^3=8\\ |A|=4\\\\ P(A)=\dfrac{4}{8}=\dfrac{1}{2}=50\%


elixir [45]3 years ago
4 0
If you flipped a coin 3 times:{

Total number of possible outcomes = 2³ = 8

Total number of outcomes with at least 2 tails = 4
{HTT , THT, TTH, TTT}

P(at least 2 tails ) = 4/8 = 1/2

Answer: 1/2




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6/8 of the cookies where shaped like circles and 2/8 of the cookies where shaped like squares *sorry if I’m wrong*
7 0
2 years ago
A light bulb filament is one-hundredth of an inch thick, with an allowable error of 2 percent. What is the least allowable thick
Andreyy89

Answer:

0.00998 Inches

Step-by-step explanation:

Thickness of the light bulb filament = 0.01 Inch

Allowable error = 2%.

2% of 0.01 = 0.02 X 0.01 =0.0002 Inch

Therefore, the allowable thickness of the bulb filament

=0.01 \pm 0.0002 $ Inches

We can then calculate the least allowable thickness of the filament as:

=0.01 - 0.0002 \\=0.00998$ Inches

The least allowable thickness of the filament is 0.00998 Inches.

3 0
3 years ago
2.c)in the diagram below, 4 m and ORIST at R. 5 $ 0 If m_1 = 63, find m_2.
pickupchik [31]

Data:

l and m are parallel lines

QR and ST are perpendicular in R

Angle 1 is 63°

The angle formed by perpendicular lines is a right angle (90°)

Angles 1 and 3 are alternate angles: angles that occur on opposite sides of a transversal line that is crossing two parallel.

Alternate angles are congruent, have the same measure.

\begin{gathered} m\angle1=m\angle3 \\  \\ m\angle3=63 \end{gathered}

The sum of the interior angles of a triangle is always 180°. In triangle QRT:

\begin{gathered} m\angle2+m\angle3+90=180 \\  \\ m\angle2+63+90=180 \\  \\ m\angle2+153=180 \end{gathered}

Use the equation above to find the measure of angle 2:

\begin{gathered} \text{Subtract 153 in both sides of the equation:} \\ m\angle2+153-153=180-153 \\  \\ m\angle2=27 \end{gathered}Then, the measure of angle 2 is 27°

8 0
8 months ago
Need helps plsssssssssssssss
slavikrds [6]

Answer:

64

Step-by-step explanation:

4^3 is just 4*4*4

so 4*4=16

and 16*4=64

TADAAAAAAAAAA

6 0
3 years ago
Read 2 more answers
Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage r
postnew [5]

Answer: -34738.4259228

Step-by-step explanation:

It’s a decrease because your dividing 1600e -0.1252

5 0
3 years ago
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