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3 years ago

If 4 coins are tossed simultaneously what is the probability of getting exactly 3 heads

Mathematics

1 answer:

Alexus [3.1K]3 years ago

6 0

No of outcomes =16
favourable outcome=4
probability of getting exactly 3 heads=0.25

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Tell whether each question can be written in the form y = mx + b

Inessa [10]

Tell whether each question can be written in the form y = mx + b
y = 8 - x^2 NO
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y = 3 - 2x YES

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3 years ago

What kind of distribution is shown in the frequency table?

nirvana33 [79]

Answer:

Skewed to the right

Step-by-step explanation:

As we can see in the table, the first three intervals have smaller frequency and last 4 intervals have higher frequency values. When the class intervals and frequency will be plotted on graph while taking class intervals on x-axis and frequency at y-axis, the graph will be skewed to the right because of the larger frequency values in the last intervals..

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3 years ago

Two sides of a triangle have lengths 4 and 7. Which of the following can NOT be the length of the third side?

Elanso [62]

Answer:

It has to be 4-7

Step-by-step explanation:

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2 years ago

Read 2 more answers

Tree+snowman+tree=17

Karo-lina-s [1.5K]

Answer:

Step-by-step explanation:

Monke

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2 years ago

Determine if x - 2 is a factor of p(x) = x4 - 3x2 + 2x - 8, and explain why.

Natali [406]

Answer:

If x-2 is a factor of p(x) = x^{4} - 3 x^{2} + 2 x - 8 ,then p(x) = 0

Solution:

According to factor theorem of polynomials,

x-a is a factor of polynomial p(x), if and only p(a)=0

Step 1:

Since x-2 is factor of p(x),

x - 2 = 0

x = 2

Step 2:

$p(x) = x^{4} - 3 x^{2} + 2 x - 8 ------ (equation 1)$

By substituting x = 2 in equation 1,

$p(x) = 2^{4} - 3(2)^{2} + 2(2) - 8$

p(x) = 16 - 3(4 ) + 4 -8

p(x) = 16 - 12 - 4

p(x) = 16 - 16

p(x) = 0

Since x - 2 is a factor of p(x) , we get p(x)=0

7 0

3 years ago