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Serga [27]
3 years ago
12

Please help me on this because I'm not sure if it's a decimal or not

Mathematics
1 answer:
anzhelika [568]3 years ago
3 0
THERE IS NO PICTURE TO ANSWER THIS
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Whats the total cost of an item that sells for $17.00, if the sales tax rate is 7%
Rainbow [258]
The total cost for this item is $18.19.
To find the sales tax of something, you move the decimal two places to the left on the percent. Then you multiply the items cost and the tax together, which gets you $1.19. Add the original amount with 1.19 and you get 18.19.
3 0
3 years ago
Read 2 more answers
What is not a composite number out of 2 4 6 8
sattari [20]

Answer:

2

Step-by-step explanation:

2 has the factors 2 and 1 while the others have:

4- 4, 2,1

6- 6, 3, 2, 1

8- 8, 4, 2, 1

3 0
3 years ago
Item 18 A spherical ball with a volume of 972π in.3 is packaged in a box that is in the shape of a cube. The edge length of the
alexandr402 [8]
Check the picture below.

so, the diameter of the sphere, is the same as a side's length of the cube, bearing in mind that all sides in a cube are the same length.

since all sides in the cube are "d", then its volume is V = d*d*d or V = d³.

\bf \textit{volume of a sphere}\\\\
V=\cfrac{4\pi r^3}{3}~~
\begin{cases}
r=radius\\
-----\\
V=972\pi 
\end{cases}\implies 972\pi =\cfrac{4\pi r^3}{3}\implies 2916\pi =4\pi r^3
\\\\\\
\cfrac{2916\pi }{4\pi }=r^3\implies 729=r^3\implies \sqrt[3]{729}=r\implies \boxed{9=r}

since the diameter is twice as much as the radius, thus d = 2r, or namely d = 18.

therefore, the volume of the cube will be V = 18³.

3 0
3 years ago
A sunflower was 20 1/2 inches tall. Over the next 6 months, it grew to a height of 37 inches tall. What was the average yearly g
guajiro [1.7K]

Answer:

  33 inches per year

Step-by-step explanation:

In half a year, the sunflower grew 37 -20 1/2 = 16 1/2 inches. Your proportion is ...

  (16 1/2 inches)/(1/2 year) = g/(1 year) . . . . . . . where g is the yearly growth

Multiplying by 1 year and simplifying, you can find g to be

  g = (33/2 inches)/(1/2) = 33 inches

That is, the growth rate is 33 inches per year.

_____

<em>Comment on the solution technique</em>

I personally find a proportion to be unnecessary. When you want to find the rate of x per y, divide the amount of x you are given by the amount of y you are given.

Here, you are given a growth of 16 1/2 inches in 1/2 year, so you simply perform the division (16 1/2 inches)/(1/2 year) = 33 inches/year.

5 0
3 years ago
How do I take the square root of
alexgriva [62]
All you have to do here is add 209 to both sides to get -8x² - 9x + 209 = 0
From there I'm sure you can work it out :)
6 0
3 years ago
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