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3 years ago

PLEASE HELP I DONT UNDERSTAND ILL GIVE MORE IF ITS RIGHT

Mathematics

1 answer:

erastova [34]3 years ago

8 0

Answer:

17ft

Step-by-step explanation:

What you're going to do is solve this backwards so to find volume the eqation is v=(pir^2)h, so what you're going to do is:

833pi=(pi7^2)h you cross out pi and square 7 833=49*h then you divide 49 from both sides and get 17

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4 years ago

Suppose a scientist reported the following data regarding the presence bacteria during the first four hours of testing for a new

OlgaM077 [116]

The recursive geometric sequence that models this situation is:

$f(n) = 0.9f(n-1)$

$f(1) = 90000$

<h3>What is a geometric sequence?</h3>

A geometric sequence is a sequence in which the result of the division of consecutive terms is always the same, called common ratio q.

It can be represented by a recursive sequence as follows:

$f(n) = qf(n-1)$

With f(1) as the first term.

In this problem, the sequence is: 90.000: 81,000; 72,900; 65,610, hence:

$q = \frac{65610}{72900} = \cdots = \frac{81000}{90000} = 0.9$

$f(1) = 90000$

Hence:

$f(n) = 0.9f(n-1)$

$f(1) = 90000$

More can be learned about geometric sequences at brainly.com/question/11847927

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2 years ago

When you divide a whole number by fraction with a numerator of one explain how you can find the quotient

MariettaO [177]

In this item, we are asked for the methodology to arriving the answer when the whole number is divided by a fraction with 1 as a numerator. If example we have the whole number as 4 and the fraction with 1 as numerator is 1/2, the division would become, 4/(1/2). We multiply the whole number by the reciprocal of the given fraction which then becomes, 4(2/1). The final answer would be 12.

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4 years ago

HELP! Find the value of sin 0 if tan 0 = 4; 180 < 0< 270

BabaBlast [244]

Hi there! Use the following identities below to help with your problem.

$\large \boxed{sin \theta = tan \theta cos \theta} \\ \large \boxed{tan^{2} \theta + 1 = {sec}^{2} \theta}$

What we know is our tangent value. We are going to use the tan²θ+1 = sec²θ to find the value of cosθ. Substitute tanθ = 4 in the second identity.

$\large{ {4}^{2} + 1 = {sec}^{2} \theta } \\ \large{16 + 1 = {sec}^{2} \theta } \\ \large{ {sec}^{2} \theta = 17}$

As we know, sec²θ = 1/cos²θ.

$\large \boxed{sec \theta = \frac{1}{cos \theta} } \\ \large \boxed{ {sec}^{2} \theta = \frac{1}{ {cos}^{2} \theta} }$

And thus,

$\large{ {cos}^{2} \theta = \frac{1}{17}} \\ \large{cos \theta = \frac{ \sqrt{1} }{ \sqrt{17} } } \\ \large{cos \theta = \frac{1}{ \sqrt{17} } \longrightarrow \frac{ \sqrt{17} }{17} }$