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2 years ago

What is the probability that one of the new parts produced will be over 1.412 cm long?

Mathematics

1 answer:

Aliun [14]2 years ago

3 0

Answer:

Hello

Step-by-step explanation:

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Which is the least valid way to stimulate how many boys and girls are in a random sample of 20 students from a school that is ha

slamgirl [31]

I think the answer is C

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3 years ago

Read 2 more answers

a house in Florida is priced at $155,000 the rent on a comparable houses $950 per month find the price to rent ratio

zysi [14]

<u>Answer: </u>

The price to rent ratio calculated is 13.6.

<u>Explanation: </u>

As per the stated question,

the house in florida was priced at $155,000 and

the rent that was comparable houses was $950 per month.

The house rent for a year can be calculated as 950 x 12 = 11400

Henceforth, the formulae for price to rent ratio was given as

$\text { rent ratio }=\frac{\text { median home price }}{\text { median home rent }}$

= $\frac{155000}{950 \times 12}=\frac{155000}{11400}=13.6$

therefore the price to rent ratio is 13.6

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3 years ago

How do you solve for x?

den301095 [7]

What? can u show a pic of the question

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2 years ago

Show that √(1-cos A/1+cos A) =cosec A - cot A

Gennadij [26K]

Hi there!

$\sqrt{\frac{1-cosA}{1+cosA}} =$

We can begin by multiplying by its conjugate:

$\sqrt{\frac{1-cosA}{1+cosA}} * \sqrt{\frac{1+cosA}{1+cosA}} = \\\\\sqrt{\frac{(1-cosA)(1 + cosA)}{(1+cosA)(1 + cosA)}} =$

Simplify using the identity:

$1 - cos^2A = sin^2A$

$\sqrt{\frac{(1-cos^2A)}{(1+cosA)^2}} =\\\\\sqrt{\frac{(sin^2A)}{(1+cosA)^2}} =$

Take the square root of the expression:

${\frac{sinA}{1+cosA} =$

Multiply again by the conjugate to get a SINGLE term in the denominator:

${\frac{sinA}{1+cosA} * {\frac{1-cosA}{1-cosA} =\\$

Simplify:

${\frac{sinA(1-cosA)}{1-cos^2A} =$

Use the above trig identity one more:

${\frac{sinA(1-cosA)}{sin^2A} =$

Cancel out sinA:

${\frac{(1-cosA)}{sinA} =$

Split the fraction into two:

${\frac{1}{sinA} - \frac{cosA}{sinA} =$

Recall:

$1/sinA = cscA\\\\cosA/sinA = cotA$

Simplify:

$\frac{1}{sinA} + \frac{cosA}{sinA} = \boxed{cscA - cotA}$

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2 years ago

Solve the word problem. Mario has 18 coins in his drawer. Five of the coins are nickels, and the rest are pennies. What is the t

Ilia_Sergeevich [38]

B.38 because if 5 of the 18 are nickels which equal 5 you have 13 coins left and you have 25 cents. Now the rest are pennies that equal one cent so you just add 13 to 25 and you get 38 cents

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3 years ago