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3 years ago

3(3y-4)=33 plz answer

Mathematics

2 answers:

zloy xaker [14]3 years ago

6 0

Answer:

y = 5

Step-by-step explanation:

First you need to distribute.

3(3y - 4) = 33

9y - 12 = 33

Then add 12 to both sides.

9y = 45

Now, divide both sides by 9.

Y = 5

Readme [11.4K]3 years ago

4 0

Answer:

y=5

Step-by-step explanation:

3(3y-4)=33

9y-12=33

9y=45

y=5

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Among all right circular cones with a slant height of 24, what are the dimensions (radius and height) that maximize the volum

aleksklad [387]

Answer:

5571.99

Step-by-step explanation:

We need to use the Pythagorean theorem to solve the problem.

The theorem indicates that,

$r^2+h^2=24^2 \\r^2+h^2=576\\r^2=576-h^2$

Once this is defined, we proceed to define the volume of a cone,

$v=\frac{1}{3}\pi r^2 h$

Substituting,

$v=\frac{1}{3} \pi (576-h^2)h\\v=\frac{1}{3} \pi (576h-h^3)$

We need to find the maximum height, so we proceed to calculate h, by means of its derivative and equalizing 0,

$\frac{dv}{dh} = \frac{1}{3} \pi (576-3h^2)$

$\frac{dv}{dh} = 0$ then $\rightarrow \frac{1}{3}\pi(576-3h^2)=0$

$h_1=-8\sqrt{3}\\h_2=8\sqrt{3}$

<em>We select the positiv value.</em>

We have then,

$r^2 = 576-(8\sqrt3)^2 = 384\\r=\sqrt{384}$

We can now calculate the maximum volume,

$V_{max}= \frac{1}{3}\pi r^2 h = \frac{1}{3}\pi (\sqrt{384})^2 (8\sqrt{3}) = 5571.99$

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3 years ago

The area of the rectangular floor of a shed is 40 space y d squared. The length of the shed is (x+2) yd and the width of the she

mel-nik [20]

Answer:

x=3

Step-by-step explanation:

3 squared is 9. 9 plus 2 times 2=22 each of the sides on the angle are 11. 22 plus 22= 44. then 3 -1 equals 2. 44 minus 4 equals 40. equaling the area

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3 years ago

Which relation does not represent a function? A) a vertical line B) y = 5 9 x - 3 C) a horizontal line D) {(1, 7), (3,7), (5, 7)

Alisiya [41]

Answer:

A) a vertical line does not represent a function.

Step-by-step explanation:

For a relation to be a function for each value of $x$ there must be only one value of $y$ . In other words a function is one in which each value in the domain set corresponds to only one value in the range set.

Let us check for this condition in the give choices:

A) a vertical line

A vertical line is given as $x=a$ which meas it is parallel to y-axis and has infinite number of $y$ values for a single $x$ value.

So, its Not a function

B) $y=\frac{5}{9}x-3$

For the given equation, on plugging in some $x$ value will give a single $y$ value.

So, its a Function

C) a horizontal line

A horizontal line is given as $y=a$ which meas it is parallel to x-axis and has infinite number of $x$ values giving a single $y$ value.

So, its a Function

D) {(1, 7), (3,7), (5, 7), (7,7)}

For the given set for different $x$ valuesthere is only one $y$ value.

So, its a Function

4 0

3 years ago

Read 2 more answers

In one day,Annie traveled 5 times the sum of the number of hours Brian traveled and 2. Together they traveled 20 hours.Find the

pashok25 [27]

The answer is Brian traveled 3 hours
And Annie traveled 17 hours

Annie traveled 5 times + 2 more hours than Brian, which is 3x5+2=17 add them together and you get the 20 hours

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3 years ago

Which answer correct estimates the product of 3.09 × 304.87

miv72 [106K]

The answer is 942.05. You get it by multiplying the two numbers together which should give you the product of 942.0483, since the 0 is not the number 5 or more ( which is the rule to round to a higher number) then you go to the hundredths place value which will be underlined for you... 942.0<u>4</u>83 and look to the right and since 8 is higher than 5, you change the four to a five, thus giving you your answer 942.05

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3 years ago