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3 years ago

Evaluate the expression when x=3 , y=−4 , and z=−6. z−2x/y

Mathematics

1 answer:

hichkok12 [17]3 years ago

6 0

Answer:

9/2

distribute the value of x,y, and z, on the given questions, and then you do multiplication, next addition, lastly lowest term.

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What are three intergers all less than 25 and a range of 10 and mean of 13

jok3333 [9.3K]

Answer:

7 15 178

Step-by-step explanation:

3 0

2 years ago

Swimming pool pete's pools installs rectangular pools that are all 10 feet wide. the length can very from 10 feet to 30 feet. th

AleksandrR [38]

76=2w+2l
76=2(10)+2l
56=2l
l=28 feet

8 0

3 years ago

A large cylindrical cooler is 2 (1 )/2 feet high and has a diameter of 1 1/2 feet. It is filled 3/4 high with water for athletes

Ivahew [28]

So.. if hmm check the picture below, the radius is half that diameter

thus $\bf \textit{volume of a cylinder}\\\\
V=\pi r^2 h\qquad 
\begin{cases}
h=height\\
r=radius=\frac{diameter}{2}\\
----------\\
h=2\frac{1}{2}\to \cfrac{5}{2}\\
diameter=1\frac{1}{2}\to \cfrac{3}{2}\\
r=\cfrac{\frac{3}{2}}{2}\to \cfrac{3}{4}
\end{cases}\implies V=\pi \left( \cfrac{3}{4} \right)^2\cfrac{5}{2}
\\\\\\
V=\pi \cdot \cfrac{9}{16}\cdot \cfrac{5}{2}\impliedby \textit{how much is }\frac{3}{4}\textit{ of that?}
\\\\\\
\cfrac{3}{4}\left( \pi \cdot \cfrac{9}{16}\cdot \cfrac{5}{2} \right)$

simplify that away

now.. that's how much is in the cooler in cubic feet though, not in gallons

notice, our units were in feet, thus our volume is also in feet, just cubics

so. to know how many gallons, simply divide that by 231

$\bf \cfrac{\frac{3}{4}\left( \pi \cdot \frac{9}{16}\cdot \frac{5}{2} \right)}{231}\quad gallons$

4 0

4 years ago

How do u answer thiss

nekit [7.7K]

Answer:

<em>15 times and more. After she pours the 15th container, in the middle of the next one, the work will be done.</em>

Step-by-step explanation:

<u>Length, Area, and Volume Scale Factors</u>

If two similar shapes have a length scale factor of a:b, then the scale factor of their areas (or surface lateral areas) is $a^2:b^2$ and the scale factor of their volumes is $a^3:b^3$ .

We are given the scale factor of the surface areas of two similar containers A and B as 4:25.

The length scale factor is

$\sqrt{4}:\sqrt{25}=2:5$

The volume scale factor is: $5^3:2^3$ = 125:8 = 15.625

Warda needs to fill with oil and pour into container B 15.625 times to get container B full of oil.

Thus, after she pours the 15th container, in the middle of the next one, the work will be done

5 0

3 years ago

A dice is rolled 5 times. How many possible rolls are there? ( Determine the number of outcomes using only the fundamental count

e-lub [12.9K]

Answer:

There are 36 Possibilities.

Step-by-step explanation:

If you role the dice it will have 6 options so 6 Possibilities. 6 times the number of times the dice has been rolled would be 30 and since their are 6 Possibilities they would be added so that would equal 36.

5 0

4 years ago