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3 years ago

A scuba diver descends at a constant rate of 8feet per minute

Mathematics

1 answer:

Dmitrij [34]3 years ago

7 0

Yes. I agree, much question.

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What is the value of x

Artemon [7]

Answer:

$45$ degrees

Step-by-step explanation:

Angles on a straight line add up to 180 degrees.

Thus, $x+3x=180$

$4x=180$

Divide both sides by 4:

$\frac{4x}{x} =\frac{180}{4}$

$x=45$

4 0

3 years ago

Marcel had drama practice 8.75 hours from Monday to Friday if he practices the same amount each day how many hours does marcel s

AURORKA [14]

It would be 1.75 hours each day

5 0

2 years ago

Ok so I wanted to make sure my math was correct Is 274.43 - 20.46 - 25.89 = 228.08

romanna [79]

<h2>yes you are absolutely correct.... </h2>

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<h3>mark it as brainliest... ✌✌✌</h3>

5 0

2 years ago

Read 2 more answers

Evaluate C_n.xP^xQn-x For the given n=7, x=2, p=1/2

r-ruslan [8.4K]

Answer:

The value of given expression is $\frac{21}{128}$ .

Step-by-step explanation:

Given information: n=7, x=2, p=1/2

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

The given expression is

$C(n,x)p^xq^{n-x}$

It can be written as

$^nC_xp^xq^{n-x}$

Substitute n=7, x=2, p=1/2 and q=1/2 in the above formula.

$^7C_2(\frac{1}{2})^2(\frac{1}{2})^{7-2}$

$\frac{7!}{2!(7-2)!}(\frac{1}{2})^2(\frac{1}{2})^{5}$

$\frac{7!}{2!5!}(\frac{1}{2})^{2+5}$

$\frac{7\times 6\times 5!}{2\times 5!}(\frac{1}{2})^{2+5}$

$21(\frac{1}{2})^{7}$

$\frac{21}{128}$

Therefore the value of given expression is $\frac{21}{128}$ .

7 0

2 years ago

What happens to the inequality symbol when you multiply or divide each side by a positive number?

Pani-rosa [81]

If you multiply or divide by a positive number the inequality sign DOES NOT CHANGE!

If you multiply or divide by a negative number the inequality sign flips around and becomes the opposite.

3 0

2 years ago