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3 years ago

Whats is the values of the underlined 890

Mathematics

2 answers:

Alex17521 [72]3 years ago

7 0

8- hundreds
9-tens
0-ones

Varvara68 [4.7K]3 years ago

6 0

8_hundreds 9_tens 0_units

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Peter calculated that the theoretical probability of obtaining exactly two heads when flipping six coins is 23.4%. What number o

Nimfa-mama [501]

Answer:

The theoretical probability of obtaining exactly four heads when flipping six coins is also 23.4%.

Step-by-step explanation:

Getting x successes out of n trials is a binomial distribution and is given by:

p(x) = $nC_{x} p^{n-x} q^{x}$

Here, n = 6

x = 2

p = probability of one head = $\frac{1}{2}$

q = 1 - p

= $1-\frac{1}{2}$

= $\frac{1}{2}$

Substitute these values, we get,

p(2) = $6C_{2} (\frac{1}{2} )^{6-2} (\frac{1}{2} )^{2}$

= $15(\frac{1}{2} )^{6}$

= $\frac{15}{64}$

= 0.234

= 23.4%

We know that $6C_{2} =6C_{6-2}$

$6C_{2} =6C_{4}$

Now,

p(4) = $6C_{4} (\frac{1}{2} )^{6-4} (\frac{1}{2} )^{4}$

= $15(\frac{1}{2} )^{6}$

= p(2)

Hence, the theoretical probability of obtaining exactly four heads when flipping six coins is also 23.4%.

7 0

3 years ago

Find the area of the entire surface of the prism. 5 4 3

Vikki [24]

Answer:

A=94

Step-by-step explanation:

Length: 5

Width: 4

Height: 3

Shape: Rectangle prism

Solved for surface area

Formula: A=2(wl+hl+hw)

Formula: L*W*H

Answer: A=94

Hope this helps.

4 0

4 years ago

Read 2 more answers

Helllppppppp

Mnenie [13.5K]

The answer for your question is A

7 0

4 years ago

rob has 3 times as msny baseball cards as Kiara. Together, they have 32 baseball cards. how many baseball cards does rob have

aleksandrvk [35]

Answer:

$\boxed{\textbf{24 cards}}$

Step-by-step explanation:

$\begin{array}{rcl}x & = & \text{Kiara's cards}\\3x & = & \text{Three times Kiara's cards (Rob's cards)}\\x + 3x& = & \text{Total cards}\\4x & = & 32\\x & = & \mathbf{8}\\3x & = & 3 \times 8 = \mathbf{24}\\\end{array}$

$\text{Rob has $\boxed{\textbf{24 cards}}$}$

8 0

4 years ago

If four times a number plus 3 is 11, what is the number? O A.5 O B. 16 OC. 2 O D.4

kiruha [24]

Answer:

Step-by-step explanation:

Let, the number be 'x'.

As per question,

4×x+3=11

subtracting 3 on both sides,

4x=8

dividing by 4 on both sides

x=2.

hence, the number is 2.

7 0

3 years ago